The length of a rectangle is 9 inches less than twice the width . If the perimeter of the rectangle is 84 inches find the dimensions of the rectangle

Answers

Answer 1

Answer:

25 by 17

Step-by-step explanation:

9x2=18

84=18= 102

102/6 = 17 (width)

17x2-9=25 (length)


Related Questions

Find the value of x
X = 8
X = 10
X = 16
X = 20

Answers

Answer:

x = 10

Step-by-step explanation:

if you go off of the other line that equals 10, its about the same length, so 10 is my estimate

hope this helps :)

Answer:

x = 20

Step-by-step explanation:

edge 2020 2021

pls pls pls pls pls pls help me pls like i dont know if i have the answer right pls help me

Answers

x + 7 is the answer

what is the anwser to (2a - 6)(3a + 15)=0

Answers

X=-5 , x=3
I split it in half so
2a-6=0 and 3x+15=0
And I solved for both of those equations and got x=-5 and x=3

Calculating Areas of Multiple Polygons

Each unit on the coordinate grid represents
1 yard.
The rectangular pool and triangular hot tub shown are both in need of covers.
How much total material is needed to cover both?
square yards

Answers

Answer:

the answer is 29

Step-by-step explanation:

Answer:

29

Step-by-step explanation:

Multiply (5 × 104)(7 × 103), express in scientific notation.

Answers

Answer:

5 times 104 is 520

7 times 103 is 721

Step-by-step explanation:

Answer:

5 x 104 = 520

7 x 103=721

Have a great day

What is the amplitude of g(x) = 10 cos (6x - 1) – 4?

Answers

Answer:

im notm sure sorry

Step-by-step explanation:

Answer:

answer : 10

Step-by-step explanation:

Write the next two numbers in the sequence: 1, 3, 6, 10, 15...*

Answers

Answer:

21,28

Step-by-step explanation:

3-1=2       2+1=3

6-3=3        3+3=6

10-6=4       4+6=10

15-10=5       5+10=15

                   6+15=21

                   7+21=28

The answers are 21 and 28

What is the approximate area of the shaded sector in the circle below?

Answers

Answer: It’s 17.3. Just checked :D

Your uncle has a sculpture displayed on
a display stand. The display stand is a
cylinder. The radius of the display stand
is 8.7 centimeters and the height of the
display stand is 27.8 centimeters. What is
the volume of the display stand?

Answers

Answer:

2104.182 * pi

or

6610.13148

Step-by-step explanation:

formula for volume of a cylinder:

pi * r^2 * H

you know the radius and height, so you can substitute those:

pi * 8.7^2 * 27.8

calculate that:

pi * 75.69 * 27.8

2104.182 * pi

or

6610.13148

Apologies in advance if I explain things badly or get the wrong answer. :/

Final answer:

The volume of the display stand, which is a cylinder with a radius of 8.7 cm and a height of 27.8 cm, is approximately 6612.105 cubic centimeters.

Explanation:

To calculate the volume of the cylinder that is being used as a display stand, we will use the formula for the volume of a cylinder, which is V = πr²h. Here, 'V' stands for volume, 'r' is the radius of the cylinder's base, 'h' is its height, and π (pi) is a constant, which we can approximate to 3.14159.

Given:

Radius (r) = 8.7 centimetersHeight (h) = 27.8 centimeters

Now, let's substitute these values into our formula:

V = π(8.7 cm)²(27.8 cm)

V = 3.14159 × (75.69 cm²) × 27.8 cm

V = 3.14159 × 2105.782 cm²

V = 6612.105 cm³ (rounded to three decimal places)

Therefore, the volume of the display stand is approximately 6612.105 cubic centimeters (cm³).

Marty says he would rather have –$5 than $0. Do you agree with Marty? Explain.

Answers

Answer:

I disagree with Marty!

Step-by-step explanation:

If Marty would have -$5 it would mean he owns that person $5. If you don't have money you don't owe anything.

For example:

Isaiah has $20 and then he spends $18 and he only has $2 left.

Isaiah doesn't have enough money for anything else or should've not bought anything to save his allowance.

As you can see Isaiah has spent 18 dollars. Therefore, if the person has to ask for the money back, he would have to own those $18.

Back to the problem, Marty would rather have -$5 than $0. If he would rather have -$5 it means he has to own the person.

Therefore Marty would rather have $0.

Sample Response: I disagree with Marty’s statement because negative numbers are less than 0, so having −$5 would mean I would owe $5 to someone.

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $240 and a standard deviation of $25. According to the Standard Deviation Rule, in a semester, almost all (99.7%) of the students spent on textbooks in a semester:_________.

Answers

The final part of the question is asking;

How much did all (99.7%) of the students spend on textbooks in a semester

Answer:

almost all (99.7%) of the students spent between $165 and $315 on textbooks in a semester.

Step-by-step explanation:

The standard deviation rule describes to us that for distributions that have the normal shape, approximately 99.7% of the observations fall within 3 standard deviations of the mean.

In this question, we are given that; Mean = 240 and Standard deviation= 25

So, 3 standard deviation below the mean = Mean - 3(standard deviation)

= 240 - (3 × 25)

= 240 - 75 = 165

Now, 3 standard deviation above the mean = Mean + 3 standard deviation = 240 + (3 × 25)

= 240 + 75 = 315

So, almost all (99.7%) of the students spent between $165 and $315 on textbooks in a semester.

what’s the answer and the work ?

Answers

Answer:

2√14

Step-by-step explanation:

√56

√2^2 x 14

√2^2 √14

2√14

What is the value of x in the equation (2x+2) x+34

Answers

The answer is 2x squared +2x+34

Answer:

you cant find the value of x with just that. i need an equal sign along with the number

Step-by-step explanation:

The town of Lantana need $14,000 for a new playground. Lantana elementary school raised $5,358, Lantana middle school raised $2,834 and Latana highschool raised 4,132. About how much more money do you need to raised

Answers

Answer:

$1676

Step-by-step explanation:

The town of Lantana need $14,000 for a new playground.

Lantana Elementary School raised $5,358.

Lantana Middle School raised $2,834.

Latana High School raised $4,132.

The total amount raised so far is:

$5358 + $2834 + $4132 = $12324

The amount left to raise is:

$14000 - $12324 = $1676

You need to raise $1676.

By adding the amounts raised by all three schools, which is $12,324, and subtracting from the goal of $14,000, we find that an additional $1,676 is needed to fund the new playground in Lantana.

To determine how much more money is needed to reach the $14,000 goal for a new playground in Lantana, we need to sum up the amounts raised by Lantana Elementary School, Lantana Middle School, and Lantana High School, and then subtract this total from the goal.

Lantana Elementary School raised: $5,358
Lantana Middle School raised: $2,834
Lantana High School raised: $4,132

Adding these amounts together we get:
$5,358 + $2,834 + $4,132 = $12,324

To find out how much more is needed:

$14,000 - $12,324 = $1,676

Therefore, the town of Lantana needs to raise an additional $1,676 to meet the goal for the new playground.

This is a easy question and easy points. Focus on question 5.

Answers

Answer:

a) 84 cm3

b) 14,080 cm3

c) 1392.49 cm3

Step-by-step explanation:

Answer:

81cm. 54 times 1.5 = 81.

Gabriella’s quiz grades are shown below. Which is the outlier?
88, 92, 92, 96, 98, 20.

Answers

Answer:

20

Step-by-step explanation:

20 because if you graphed it 20 would be far away from the other points.

anyone down to help?

Answers

Answer:

s = 10w

Step-by-step explanation:

First we need to find the slope

Since the point goes through (0,0), the slope is y/x

Using the point (1,10)

10/1 = 10

The equation is

y = mx+b

The slope is m and the y intercept is b  

The slope is 10 and the b intercept is 0

y = 10x

Changing to the variables on the graph

s = 10w

You need the slope that’s a good idea

A business owner noted the features of the 100 cars parked at the business. Here are the results:
Sunroof
11
12
1820
14
6
25
2 doors
4 doors
Given that a randomly selected car has a sunroof, find the probability the car has 4 doors.
P (4 doors | sunroof) =

Answers

Answer:

The probability of a selected car being a 4 door car, given that the car has a sunroof = 0.40

Step-by-step explanation:

The complete question is presented in the attached image.

The conditional probability, of event A happening, given that event B has happened, P(A|B), is given mathematically as

P(A|B) = P(A n B) ÷ P(B)

So, the required probability of a selected car being a 4 door car, given that the car has a sunroof is given as

P (4 doors | sunroof)

= P (4 doors n sunroof) ÷ P(sunroof)

Note that the probability of an event is given as the number of elements in that event divided by the Total number of events.

P (4 doors n sunroof)

= n (4 doors n sunroof) ÷ n (total)

From the Venn Diagram in the attached image,

n (4 doors n sunroof) = 20 + 0 = 20

n (total) = 100

P (4 doors n sunroof) = (20/100) = 0.20

P(sunroof) = n(sunroof) ÷ n(total)

n(sunroof) = 12 + 18 + 20 + 0 = 50

n(total) = 100

P(sunroof) = (50/100) = 0.50

P (4 doors | sunroof)

= P (4 doors n sunroof) ÷ P(sunroof)

= (0.20/0.50) = 0.40

Hope this Helps!!!

Final answer:

To find the probability of a car having 4 doors given that it has a sunroof, we use conditional probability. The probability can be found by dividing the number of cars with both a sunroof and 4 doors by the total number of cars with a sunroof. In this case, the probability is 6/11.

Explanation:

To find the probability of a car having 4 doors given that it has a sunroof, we need to use the conditional probability formula, which is:



P(4 doors | sunroof) = P(4 doors and sunroof) / P(sunroof)



In this case, we know that 11 cars have a sunroof, 6 cars have 4 doors, and a total of 100 cars are parked at the business. Therefore:



P(4 doors and sunroof) = 6/100

P(sunroof) = 11/100



Substituting these values into the conditional probability formula, we get:



P(4 doors | sunroof) = (6/100) / (11/100)



Simplifying the expression gives us:



P(4 doors | sunroof) = 6/11



Therefore, the probability that a randomly selected car with a sunroof has 4 doors is 6/11.

Explain the steps you would take to complete this
conversion problem.
46 lb
1.
Х
1kg
2.2 lb
х
1,000 g
1kg
= ?

Answers

We have been given a conversion problem. We are asked to convert 46 pounds into grams.

First of all, we will convert pounds to kg.

We know that 1 kg is approximately 2.2 pounds.

[tex]\frac{46\text{ lb}}{1}\times \frac{1\text{ kg}}{2.2\text{ lb}}[/tex]

Now we will convert kg to grams.

We know that 1 kg equal 1000 grams.

[tex]\frac{46\text{ lb}}{1}\times \frac{1\text{ kg}}{2.2\text{ lb}}\times \frac{1000\text{ g}}{\text{1 kg}}[/tex]

Now we will cancel out common units that is kg with kg and pounds by pounds.

[tex]\frac{46}{1}\times \frac{1}{2.2}\times \frac{1000\text{ g}}{1}[/tex]

Now we will multiply the terms in numerator and denominator.

[tex]\frac{46\times1\times1000\text{ g}}{1\times2.2\times1}[/tex]

[tex]\frac{46,000\text{ g}}{2.2}[/tex]

[tex]\frac{46,000\text{ g}}{2.2}=20,909.0909\text{ g}\approx 20,909.1\text{ g}[/tex]

Therefore, 46 pounds are approximately 20,909.1 grams.

The converted value for the given conversion problem is 20,909.1 grams, which is determined by dimensional analysis.

The conversion problem is given as:

46 lb/1 × 1 kg/2.2 lb × 1000/1 kg

To convert 46 pounds (lb) to kilograms (kg) using dimensional analysis.

Start with the given value: 46 lb.

Multiply by the conversion factor of 1 kg/2.2 lb.

This ratio converts pounds to kilograms, where 1 kilogram is approximately equal to 2.2 pounds.

The lb unit cancels out, leaving you with the value in kilograms:

(46 lb) × (1 kg/2.2 lb) = 20.9091 kg (rounded to four decimal places).

Lastly, multiply by the conversion factor 1000/1 kg to convert the result to grams (since 1 kg = 1000 grams).

The final result is approximately 20,909.1 grams.

Learn more about the dimensional analysis here:

https://brainly.com/question/30303546

#SPJ3

Simplify the expression below (assuming x and y are non-zero numbers). ​

Answers

Answer: Option 2

Step-by-step explanation:

[tex]\frac{15x^4y^-^2}{3x^2y^3}[/tex]

Divide 15 by 3 and substract the variables's exponents.

[tex]5x^4^-^2y^-^2^-^3[/tex]

Solve;

[tex]5x^2y^-^5[/tex]

or

[tex]\frac{5x^2}{y^5}[/tex]

The second option is correct. The resulting expression when the indices is simplified according to the law of indices is [tex]\frac{5x^2}{y^5}\\[/tex]

Given the indices expression;

[tex]\dfrac{15x^4y^{-2}}{3x^2y^3}[/tex]

Using the following laws of indices to solve the problem:

[tex]a^n \times a^m = a^{n+m}\\a^n \div a^m = a^{n-m}\\[/tex]

From the given indices

[tex]\dfrac{15x^4y^{-2}}{3x^2y^3}\\=\frac{15}{3} \times \frac{x^4}{x^2} \times \frac{y^{-2}}{y^3}\\= 5 \times x^{4-2} \times y^{-2-3}\\=5\times x^2y^{-5} \\= 5x^2y^{-5[/tex]

This can also be expressed as:

[tex]=5x^2 \times \frac{1}{y^5}\\= \frac{5x^2}{y^5}\\[/tex]

Learn more here:

https://brainly.com/question/20298728

(4x3 + 2x + 6) + (2x3 – x2 + 2)

Answers

Answer:

26

Step-by-step explanation:

Start by solving everything in the parentheses

(12 +2x + 6) + (6 - 2x + 2)

now open parentheses and combine like terms

(12 + 6 + 6 + 2) + (2x -2x)

= 26 + 0

= 26

How to find the volume of cylinders

Answers

Answer:

Calculate the area of the base (which is a circle) by using the equation πr² where r is the radius of the circle. Then, multiply the area of the base by the height of the cylinder to find the volume.

Step-by-step explanation:

Answer:

cylinder volume formula

v = (π * r²) * h

Step-by-step explanation:

To calculate the volume of a cylinder we have to multiply the height by the area of ​​the circle that is the base

The area of ​​a circle is calculated with this formula (a = π * r²)

Let's do an example where the radius is 5.5ft  and the height is 13ft  to see how to calculate the volume

To calculate the volume of a cylinder we have to use the following formula:

v = volume

h = height = 13ft

π = 3.14

r = radius = 5.5ft

v = (π * r²) * h

we replace the unknowns with the values we know

v = (3.14 * (5.5ft)²) * 13ft

v = (3.14 * 30.25ft²) * 13ft

v = 94.985ft² * 13ft

v = 1234.805ft³

The volume of the cylinder is 1234.805ft³

11/15=w-8/15 what does w equal

Answers

Answer:

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    11/15-(w-8/15)=0  

Step by step solution :

Step  1  :

            8

Simplify   ——

           15

Equation at the end of step  1  :

 11           8

 —— -  (w -  ——)  = 0  

 15          15

Step  2  :

Rewriting the whole as an Equivalent Fraction :

2.1   Subtracting a fraction from a whole

Rewrite the whole as a fraction using  15  as the denominator :

         w     w • 15

    w =  —  =  ——————

         1       15  

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

2.2       Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

w • 15 - (8)     15w - 8

————————————  =  ———————

     15            15    

Equation at the end of step  2  :

 11    (15w - 8)

 —— -  —————————  = 0  

 15       15    

Step  3  :

           11

Simplify   ——

           15

Equation at the end of step  3  :

 11    (15w - 8)

 —— -  —————————  = 0  

 15       15    

Step  4  :

Adding fractions which have a common denominator :

4.1       Adding fractions which have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

11 - ((15w-8))     19 - 15w

——————————————  =  ————————

      15              15    

Equation at the end of step  4  :

 19 - 15w

 ————————  = 0  

    15    

Step  5  :

When a fraction equals zero :

5.1    When a fraction equals zero ...

Where a fraction equals zero, its numerator, the part which is above the fraction line, must equal zero.

Now,to get rid of the denominator, Tiger multiplys both sides of the equation by the denominator.

Here's how:

 19-15w

 —————— • 15 = 0 • 15

   15  

Now, on the left hand side, the  15  cancels out the denominator, while, on the right hand side, zero times anything is still zero.

The equation now takes the shape :

  19-15w  = 0

Solving a Single Variable Equation :

5.2      Solve  :    -15w+19 = 0  

Subtract  19  from both sides of the equation :  

                     -15w = -19

Multiply both sides of the equation by (-1) :  15w = 19

Divide both sides of the equation by 15:

                    w = 19/15 = 1.267

One solution was found :

                  w = 19/15 = 1.267

Step-by-step explanation:

PLEASE HELP ME! I ONLY HAVE A LIMITED TIME!!!
I am completing a color sheet for my math class. I have a set of markers with 2 purples, 1 black, 3 reds, 2 yellows, and 2 blues. What is the probability that I will randomly select a red marker, keep it, and then randomly select a yellow marker?
A. 47/90
B. 3/10
C. 1/15
D. 2/9

Answers

Answer:

Option C.

Step-by-step explanation:

Number of purple markers = 2

Number of black marker = 1

Number of red markers = 3

Number of yellow markers = 2

Number of blue markers = 2

Total number of markers = 10

Probability to select randomly a red marker = [tex]\frac{\text{Number of red markers}}{\text{Total number of markers}}[/tex]

                                                                         = [tex]P(red)=\frac{3}{10}[/tex]

Now we keep with us and randomly select a marker again.

So remaining markers with us = (10 - 1) = 9

Probability of the randomly selected marker to be yellow P(yellow)

= [tex]\frac{\text{Number of yellow markers}}{\text{Number of remaining markers}}[/tex]

= [tex]\frac{2}{9}[/tex]

Probability of both the events (selecting red AND yellow) = P(red) × P(yellow)

= [tex]\frac{3}{10}\times \frac{2}{9}[/tex]

= [tex]\frac{6}{90}[/tex]

= [tex]\frac{1}{15}[/tex]

Therefore,Option (C) will be the answer.

What is the perimeter of the triangle?

Answers

The perimeter of the triangle is kind of like a path that surrounds a two dimensional shape.

Hey there!

First of all, let's count the sides that we can count.

Our shortest side is 8 units if you count the squares it covers.

Now we can do our other side, which is 15 units when you count.

Now, we need to find our third side, which is the longest. The longest side is the hypotenuse. Because this triangle is a right triangle (it has a ninety degree angle), we can use the Pythagorean Theorem to solve for this side.

The Pythagorean Theorem states that when a triangle is a right triangle, [tex]a^{2} +b^{2} =c^{2}[/tex], where a and b represent the legs, and c represents the hypotenuse.

So, what we will do now is take the sides we have and solve for our c.

[tex]8^{2} +15^{2} =c^{2} \\64+225=289=c^{2} \\c=\sqrt{289} \\c=17[/tex]

As you can see, we used the square root to undo the squared c.

Now, we add our three lengths to get our perimeter.

8+15+17=40

Therefore, our perimeter is 40 units.

I hope that this helps you! Have a wonderful day!

What is x? Please help FAST

Answers

Answer:

x=35°

Step-by-step explanation:

X is 35° because of vertical angle.

You write down the temperatures at different times on one of the match days midnight - -6degrees 4 am - -8 degrees 8am- -4 degrees noon- 7degrees 3 pm- 6 degrees 7pm- -2 degrees what is the difference between the lowest and the highest temperature? thanks

Answers

Answer:

the difference is 15 degrees

Step-by-step explanation:

HIghest Temp- (7)

Lowest Temp (-8)

-8 +15 = 7

7-15 = -8

WILL GIVE BRAINLEIST : A party hat is in the shape of a cone. What is the volume of the hat in cubic centimeters?​

Answers

36xpi or 113.1 cm^3
hope that helped!! :)

the number of girls in a class is 10 more than the number of boys. if there are 36 students in all, how many girls are there in the class.

Answers

Answer:

23 Girls

Step-by-step explanation:

23 plus 13 equals 36 and 23 is 10 more than 13.

Answer:

the number of girls in the class is 23

Step-by-step ex

23 +13=36

Evaluate the expression for p = 5 and q = 6: pq 2 - q A)6 B)9 C)12 D)15

Answers

Final answer:

When evaluating the expression with p=5 and q=6, assuming the expression is 'p times q squared minus q', the result is 174, which does not match any of the provided options.

Explanation:

The question provided requires evaluating an expression given the values for variables p and q. The expression provided seems to be 'pq 2 - q', but it is slightly unclear due to formatting. Assuming the expression is intended to be 'p times q squared minus q', and with p = 5 and q = 6, the evaluation would proceed as follows:

First, square the value of q: 6 squared = 36.Multiply this result by the value of p: 5 times 36 = 180.Finally, subtract the value of q: 180 - 6 = 174.

Therefore, the result is 174, which does not match any of the provided multiple-choice options (A, B, C, D). The options may have been provided incorrectly or the expression may have been transcribed incorrectly. Without further clarification, the evaluated answer is 174.

Other Questions
he following probabilities are based on data collected from U.S. adults during the National Health Interview Survey 2005-2007. Individuals are placed into a weight category based on weight, height, gender and age. Probability Underweight 0.019 Healthy weight 0.377 Overweight (not obese) 0.35 Obese 0.254 Based on this data, what is the probability that a randomly selected U.S. adult weighs more than the healthy weight range? Which of these values represents the largest distance?A. 450 feetB. 4,500 inchesC. 45 yardsD. 0.45 miles q(x)=1/x^2+25 Find the domain of the rational function Need help now due in 5 minutes How does Tybalt know Romeo is at the party?He recognizes his voice.Juliet tells him.Romeo greets him without his mask on.Capulet points him out. When solving an inequality, you must ____________ the variable. A. isolate B. eliminate explain your answer. what region has the highest elevation?A) Cove HillB) Atkins Hill C) Mead Mountain D) Great Pond Mountain Which exponential equation best models the datain the graph?y = 0.85(25)Oy=0.85(25)5xy=25(0.8.A) y = 25(0,85)5xAnswer C The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to find out the fraction of people who appear on the list that are actually caught. Step 2 of 2 : Suppose a sample of 517 suspected criminals is drawn. Of these people, 211 were captured. Using the data, construct the 98% confidence interval for the population proportion of people who are captured after appearing on the 10 Most Wanted list. Round your answers to three decimal places. A scatterplot is used to display data where x is the amount of time, in minutes, one member can tolerate the heat in a sauna, andy is the temperature, in degrees Fahrenheit, of the sauna.Which interpretation describes a line of best fit of y = -1.5x + 173 for the data? A cylindrical bar of metal having a diameter of 21.0 mm and a length of 210 mm is deformed elastically in tension with a force of 46800 N. Given that the elastic modulus and Poisson's ratio of the metal are 60.9 GPa and 0.34, respectively, determine the following: (a) The amount by which this specimen will elongate in the direction of the applied stress. (b) The change in diameter of the specimen. Indicate an increase in diameter with a positive number and a decrease with a negative number. (a) 0.443 mm (b) mm A random sample of 15 observations from the first population revealed a sample mean of 350 and a sample standard deviation of 12. A random sample of 17 observations from the second population revealed a sample mean of 342 and a sample standard deviation of 15. At the 0.10 significance level, is there a difference in the population means?(a) state the decision rule(b) compute the pooled estimate of the population variance(c) compute the test statistic(d) state your decision about the null hypothesis(e) estimate the p-value. In this photo, this phase of the moon is calledThe next phase will beAbout 27 days from now the phase will be Which of the following best identifies a theme of the text? Short story A&P Math- Please answer a few ASAP! Thank you Explaining the causes of ocean currents What factor causes surface ocean currents Which excerpt from the poem shows that the speaker is uncertain?A. Whose woods these are I think I know,His house is in the village though;OB. My little horse must think it queerTo stop without a farmhouse nearOC. He gives his harness bells a shakeTo ask if there is some mistake.D.The woods are lovely, dark, and deep.But I have promises to keep, Papa would be angry if Jeanne dated a ______________A) An AsianB) A "No, No" JapaneseC) A CaucasianD) An older man Which of the following nations is located in Sub-Sahara Africa? A. Botswana B. Algeria C. Egypt D. Libya Hydrogen reacts with oxygen to produce water.2H2(g) + O2(g) 2H20(1)The mass of oxygen before and after the reactionA.varies with the experimental conditionsB.is always the same.C.is sometimes same and sometimes different.D.is always different. Steam Workshop Downloader