The scores of several classmates on a language arts test are shown below: 86 points 87 points 87 points 94 points 95 points 82 points 78 points 89 points 80 points 84 points What is the median score for these students?

Answers

Answer 1
78,80,82,84,86,87,87,89,94,95
86+87/2 = 86.5
Answer 2

Answer:

78,80,82,84,86,87,87,89,94,95

86+87/2 = 86.5

Step-by-step explanation:


Related Questions

The equation below shows the relationship between the temperature in degrees Celsius, C, and degrees Fahrenheit, F:

F = 9 over 5 C + 32

Which of the following formulas correctly solves for C?
A) C = 5F − 32 over 9
B) C = 5 F over 9 − 32
C) C = 9 over 5 (F − 32)
D) C = 5 over 9 (F − 32)


Answers

it is the last option C=5/9(F-32)

Answer:

option (D) is correct.

formula that solves for C is  [tex]C=\frac{5(F-32)}{9}[/tex]

Step-by-step explanation:

Given :  the relationship between the temperature in degrees Celsius, C, and degrees Fahrenheit, F as ,  [tex]F=\frac{9}{5}C+32[/tex]

We have to find the correct formula that solve for C,

Consider the given formula,

[tex]F=\frac{9}{5}C+32[/tex]

We have to find formula for C,

Thus, first subtract 32 both side, we get,

[tex]F-32=\frac{9}{5}C[/tex]

Now, multiply  5 both side, we get,

[tex]5(F-32)={9}C[/tex]

Now , divide both side by 9, we get,

[tex]\frac{5(F-32)}{9}=C[/tex]

Thus, formula that solves for C is  [tex]C=\frac{5(F-32)}{9}[/tex]

Thus, option (D) is correct.

Find the GFC of 56 and 84. A factor tree for 84 is given below. The GCF of 84 and 56 is .

Answers

The GCF of 84 and 56 is 28.

The greatest common factor of the given numbers is 4.

The given numbers are 56 and 84.

The GCF (Greatest Common Factor) of two or more numbers is the greatest number among all the common factors of the given numbers.

Here, the factors of given numbers are

56 = 2×2×2×7

84 = 2×2×3×7

Now, the common factors from the above factorization is 2×2

= 4

Therefore, the greatest common factor of the given numbers is 4.

To learn more about the greatest common factor visit:

brainly.com/question/11221202.

#SPJ6

Rewrite 256 in exponential form using 2 as the base

Answers

256=2^8
256 is 2^8
I hate this " at least 20 characters to explain" may be the answer doesn't need to be explained so much

s the work shown below correct? Explain your answer. (11 + 2i ) – (3 – 10i ) = 11 + 2i – 3 – 10i = (11 – 3) + (2i – 10i) = 8 – 8i

Answers

No, because [tex]-(3-10i)=-3+10i[/tex]

Answer:

Given that: [tex](11+2i)-(3-10i)[/tex]

Remove the parentheses, we have;

[tex]11+2i-3+10i[/tex]

Like terms are those terms which have same variables to the same power.

Combine like terms of a constant variable;

[tex](11-3) +2i+10i[/tex]

Similarly, combine like terms of imaginary part, we have;

[tex](11-3) +(2i+10i)[/tex]

Simplify:

[tex]8 +(12i)[/tex]

or

[tex]8+12i[/tex]

Therefore, the correct solution of [tex](11+2i)-(3-10i)[/tex] = [tex]8+12i[/tex]

For which pair of numbers is the greatest common factor 8

Answers

the answer is at least 4 and 4

Determine two pairs of polar coordinates for the point (4, -4) with 0° ≤ θ < 360°.

Answers

A polar coordinate is that which can be written as (r, θ) where r is the radius and θ is the angle. 

The radius, r, is also the hypotenuse of the right triangle that can be formed. Hence, it can be calculated through the equation,
    
                   r² = x² + y²
If we are to simplify this for the r alone, we have,
                     r = sqrt (x² + y²)

Substituting the known values,
               r = sqrt ((4)² + (-4)²) = 4√2

The x and y can be related through the trigonometric function, tangent. 
      tan θ = y/x
To solve for θ
   θ = tan⁻¹(y/x) = tan⁻¹(-4/4) = -45° = 315°

Hence, the polar coordinate is (4√2, 315°)

Answer:

(4 square root 2, 315°), (-4 square root 2, 135°)

Step-by-step explanation:

An item has a listed price of $80. If the sales tax rate is 6% , how much is the sales tax (in dollars)?

Answers

$4.80 is the sales tax 

6% = 0.06

80 x 0.06 = 4.80

 the tax is $4.80

the lines shown below are perpendicular. if the green line has a slope of 1/7, what is the slope of the red line?

Answers

Answer: it's -7


Step-by-step explanation:


Answer:

Therefore, the slope of the red line must be -7

Step-by-step explanation:

If the two lines are said to be perpendicular each other, then the multiplicative of their slope is -1.

Let "m1" be the slope a line and "m2" be the slope of the perpendicular line.

So, m1*m2 = -1

Here, let's take "m1" be the slope of the green line and "m2" be the slope of the red line.

They said to be perpendicular to each other.

So, m1*m2 = -1

Given: m1 = 1/7

NOw plug in m1 = 1/7 in the above statement, we get

1/7 *m2 = -1

Let's find the value of m2, multiply both sides by the reciprocal of 1/7

The reciprocal of 1/7 is 7.

7*1/7*m2 = -1*7

7/7.m2 = -7

m2 = -7

Therefore, the slope of the red line must be -7

An equilateral triangle has a perimeter of 15x3 + 33x5 feet. What is the length of each side? x3 feet

Answers

In any case, divide by three: equilateral=same sides, triangle=3 sides
Let x represent one side of equilateral triangle.
Next, we know that the perimeter of the equilateral triangle= side+side+side,so
P=x+x+x with the P=15x^3+33x^5 feet
15x^3+33x^5=3x
Divided both side by 3
(15x^3+33x^5)/3=3x/3
x=5x^3+11x^5
x=x³(5+11x²) feet. As a result, the length of each side is x³(5+11x²) feet. Hope it help!

Roman mixes 12 liters of 8% acid solution with a 20% acid solution, which results in a 16% acid solution. Find the number of liters of 20% acid solution in the new mixture. Construct a table to organize the information, and show all of your work to solve the problem

Answers

(12(0.08)+x(0.2))/(12+x)=0.16  perform indicated multiplication on left side

(0.96+0.2x)/(12+x)=0.16  multiply both sides by (12+x)

0.96+0.2x=1.92+0.16x  subtract 0.16x from both sides

0.96+0.04x=1.92  subtract 0.96 from both sides

0.04x=0.96  divide both sides by 0.04

x=24

So 24 liters of 20% acid solution is in the new mixture.

Help pleasee i am beggin

Answers

There are infinitely many solutions
I believe that there are infinite.

Carina spent a total of $5.27 buying a pineapple for $3.40 and several pounds of tomatoes that were on sale for $0.85 per pound. To determine the number of pounds of tomatoes that she bought, x, Carina wrote and solved the equation as shown below.

Answers

okay so I'm going to set up a equation:

5.27= 3.40+ 0.85x, we have our total our price of one pineapple and our variable

next I isolate the variable:

5.27-3.40=0.85x

next:

1.87=0.85x

x= 2.2

she bought 2.2 pounds of tomatoes

Answer:

pretty sure its B.

Step-by-step explanation:


Find the value of the expression m4 - m3 - 2m2 + 10m + 15 when m = -3.

Answers

In this case sense its m= -3 then your answer is -6 

A store sells cooking oil of two different brands in bottles of the same size. The table below and the equation each show the price (y) in dollars of different numbers of bottles of oil (x)

Brand A
Number of bottles (x).
2
3
4
5
Price (dollars) y
22
33
44
55

Brand B:
Y=17x

How many dollars more is the price of 8 bottles of Brand B than the price of 8 bottles of Brand A oil?

Answers

the answer is 48 dollars more
Answer:

The number of dollars more is the price of 8 bottles of Brand B than the price of 8 bottles of Brand A oil is:

                        $   48

Step-by-step explanation:

Brand A--

Number of bottles (x)       Price (dollars) y

2                                                   22

3                                                   33

4                                                   44

5                                                   55

The function that represents the relation between the price of the bottles and the number of bottles is:

               y=11x

Brand B--

Also, the price of the bottles depending on the number of bottles is:

                 Y=17x  

According to Brand A the price of 8 bottles is:   y=11×8=$ 88

and according to Brand B the price of 8 bottles is: y=17×8= $ 136

Also, the difference in the price of Brand B to that of Brand A for 8 bottles is:

       $ 136-$ 88

    = $ 48

What is the relationship between 8.76 x 10^6 and 8.76 x 10^2

Answers

8.76×10^6 is 35340.4 and 8.76×10^2 is 647.3.

Hope this helps.

Of the 8760 hours in a​ year, one television was on for
1752 hours. What percent is​ this?

Answers

The percentage is 20%. 8760/1752=5 100/5=20.

Elevator 1 moved up 15 feet from the ground level. Its position is labeled as +15. Elevator 2 moved down 6 feet from the ground level. Its position is labeled as _____. (Use the hyphen for negative such as -1)

Answers

The ground level is to be the zero level. When the elevator moves above the ground level, it is moving towards the positive integer and when the elevator moves below the ground level, it is moving towards the negative integer. 

Elevator 2 moved down 6 feet from the ground level hence its position is labelled as [tex]-6[/tex]

Answer:

-6

Step-by-step explanation:

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Holly earns $30 for babysitting 5 hours. She earns $28 when she does chores for 4 hours. Which compares the unit rates?

Answers

The rate of earning money for both activities will be calculated by dividing the amount earned by the total time spent for each of the activity.

 Babysitting:         rate = ($30 / 5 hours ) = $6 / hour

 Doing chores:      rate = ($28 / 4 hours) = $7 / hour 

Thus, Holly is able to earn money faster when doing the chores compared to when she do the babysitting if she work for the same amount of time for each. 

Answer:

The unit rate for doing chores is $1 more than the unit rate for babysitting.

Step-by-step explanation:

30 divided by 5=6  So that means it was six dollars for babysitting.

28 divided by four=7  So that means it was seven dollars for babysitting.




-4(2x-6)=-(4x-9)-2x+3

Answers

-4(2x-6)=-(4x-9)-2x+3
First, you multiply -4 by 2x and -6: -8x+24=-(4x-9)-2x+3 is what you will get. Then, you would do the same thing to the other side...since there isn't a number in front of the parenthesis its concidered as -1, so you would multiply -1 by 4x and -9 to get: -8x+24=-4x+9-2x+3
Then, you would add -4x to -2x to get -6x. Then you would add 9 and 3 to get 12: -8x+24=-6x+12. Then, you would add 6x on both sides: -2x+24=12. Then you would subtract 24 on both sides to get, -2x=-12. Then, you would divide both sides by -2 and your answer would be 6. x=6

C+1/c-2 = 4/7 please show how you got the answer which is 5

Answers

Assuming the equation is (c+1)/(c-2) = 4/7, the answer is actually c = -5

(c+1)/(c-2) = 4/7
7*(c+1) = 4*(c-2) ... cross multiply
7c+7 = 4c-8
7c+7-7 = 4c-8-7 ... subtract 7 from both sides
7c = 4c-15
7c-4c = 4c-15-4c ... subtract 4c from both sides
3c = -15
3c/3 = -15/3 ... divide both sides by 3
c = -5

----------------------------

Check:

(c+1)/(c-2) = 4/7
(-5+1)/(-5-2) = 4/7 ... replace every copy of 'c' with '-5'
(-4)/(-7) = 4/7
4/7 = 4/7 .. true equation; answer checks out

So the answer of c = -5 has been confirmed.

What is the answer to 6,007,200 in exspanded form

Answers

6,000,000 + 7,000+ 200    is your expanded form

hope this helps

The number 6,007,200 in expanded form is written as 6,000,000 + 7,000 + 200, breaking down the number by each digit's place value.

To write the number 6,007,200 in expanded form, we break it down based on the place value of each digit. Here is how you would write it:

Identify the value of each digit in the number.

Starting from the left, write each digit multiplied by its place value.

Add each of these values together.

Applying this to the number 6,007,200, we get:

6,000,000 (6 millions) + 7,000 (7 thousands) + 200 (2 hundreds)

Therefore, the expanded form of 6,007,200 is:

6,000,000 + 7,000 + 200

Stumped on how to solve this one! The numbers just aren't making sense to me

Answers

30=3/5

so 10 miles = 1/5 on the map

there re 5/5 per inch, so 4 inches = 4*5 = 20/5

20*10 = 200

 so they are 200 miles apart


given that there are eight ounces in a cup and four cups in a quart, which quantity below is equal to 128 ounces

256 ounces 64 ounces 18 cups 4 quarts

Answers

Answer:

4 quarts i had this question on a test and got it right

Step-by-step explanation:

128 ounces is equal to 4 quarts.

To solve this, we need to convert the amount given in ounces to quarts.

Step-by-Step Solution:

There are 8 ounces in a cup.There are 4 cups in a quart.Therefore, there are 8 ounces/cup × 4 cups/quart = 32 ounces in a quart.To find out how many quarts are in 128 ounces, divide 128 by 32: 128 ounces / 32 ounces per quart = 4 quarts.

So, the quantity equal to 128 ounces is 4 quarts.

The other options: 256 ounces and 64 ounces are obviously not equal to 128 ounces since 256≠ 128≠ 64

and,  18 cups =18×8= 144 ounces ≠ 128 ounces.

(1-sec x)/(1-cos x) = -sec x
I got up to this:
(cos x - 1)/ (cos x(1 - cos x)

Can you help me verify the following identity?

Answers

We are given the trigonometric equation:

(1 - sec x) / (1 - cos x) = - sec x

 

Since the left side has more terms, then let us work on that side to make it exactly like the right side.

We know that sec = 1 / cos, therefore:

(1 – 1 / cos x) / (1 – cos x) = - sec x

[(cos x – 1) / cos x] / (1 – cos x) = - sec x

[- (1 – cos x) / cos x] / (1 – cos x) = - sec x

Cancelling out the term (1 – cos x):

- 1 / cos x = - sec x

- sec x = - sec x

PROVEN!

a whole number is a perfect square if its square root is an integer true or false

Answers

The answer is True because it has real numbers in it
True because it have real numbers

What are the solution(s) of –x2 + 2x + 3 = x2 – 2x + 3?
a. 1 and 3
b. 0 and 2
c. 0
d. 3
HURRY IM BEING TIMED!!

Answers

-x^2+2x+3=x^2-2x+3  add x^2 to both sides

2x+3=2x^2-2x+3  subtract 2x from both sides

3=2x^2-4x+3  subtract 3 from both sides

2x^2-4x=0  factor

2x(x-2)=0

So x=0 and 2

Answer:

Step-by-step explanation:

Given:  –x² + 2x + 3 = x² – 2x + 3 .

To find: What are the solution(s) .

Solution: we have given that

–x² + 2x + 3 = x² – 2x + 3 .

 On subtracting both side by x² .

-2x² + 2x + 3 =  x² - x² - 2x + 3

-2x² + 2x + 3 = -2x +3

On Addition both side by 2x .

-2x² + 2x + 2x + 3  =-2x  +2x +3

-2x² + 4x  + 3  = 3

On subtracting both side by -3  .

-2x² + 4x  + 3  -3 = 3  - 3

-2x² + 4x   = 0

Taking common  2x .

2x (- x +2 ) =0 .

On grouping  .

2x= 0

so x= 0

Now , -x +2 =0 .

-x = -2 .

On dividing by -1

x= 2

Therefore , option B is 0 and 2 .

First right answer gets brain

Answers

The answer is C i think
The Answer would be A because the 3rd quadrant requires all points, or in this case, vertex coordinates to be negative (-x,-y). A is the only answer that has all vertex coordinates (-x,-y).

The diagram shows A's coordinates plotted out. You can confirm that the original and new, translated shape are congruent and in the 3rd quadrant.

A man owned 5/8 of an interest in a house. He sold 1/5 of his interest, at a cost for $1000. What is the total value of the house? Explain how u solved it.

Answers

First you would have to find a common denominator with 1/5 and 5/8, which would be 40. So, they would now be 8/40 and 25/40. If 8/40 is $1,000, then you need to figure out how many 8/40 you need to get 40/40. You need 5 8/40, so you multiply $1,000 by 5 to get $5,000, which is the answer.

Sydney applied the steps below to find the product of (3.1)(–1.6).

Step 1: (3.1)(–1.6) = (–1.6)(3.1)
Step 2: = _______________
Step 3: = (–4.8) + (–0.16)
Step 4: = –4.96

Which expression correctly fills in the blank in Step 2?
(1.6)(3) – (1.6)(0.1)
(–1)(3) + (–0.6)(0.1)
(1)(3) – (0.6)(0.1)
(–1.6)(3) + (–1.6)(0.1

Answers

(-1.6)(3)+(-1.6)(0.1)

Answer with explanation:

We have to find the product of

⇒(3.1)× (-1.6)

 Step 1:→ (3.1)(–1.6) = (–1.6)(3.1)  

Step 2: = -1.6×(3 + 0.1)=(-1.6) ×3 + (-1.6)×(0.1)→→We have used Distributive property of addition with respect to Multiplication, which is , a × (b + c)=a×b + a × c

Step 3: = (–4.8) + (–0.16)

Step 4: = –4.96

The expression which correctly fills the blank is:

  Option D: →→ (–1.6)(3) + (–1.6)(0.1)

Starting at home, Jessica traveled uphill to the grocery store for 18 minutes at just 20 mph. She then traveled back home along the same path downhill at a speed of 60 mph.

What is her average speed for the entire trip from home to the grocery store and back?

Answers

The average speed is 40 miles per hour.
Based on the formula [tex]distance = velocity*time[/tex] we can find the distance from the grocery store:

[tex]distance = velocity * time = 20mph * \frac{18}{60}hrs = 6 miles[/tex]

Based on this distance we can find the time it took her to get back using the formula [tex]time = \frac{distance}{velocity}: [/tex]

[tex]time = \frac{distance}{velocity} = \frac{6 miles}{60mph} = \frac{1}{10}hrs = 6 minutes[/tex]

After this you just take the average of Jessica going at 20 mph for 18 minutes and 60 mph for 6 minutes:

[tex]\frac{20mph * 18min + 60mph*6min}{24min} = 30mph[/tex]

:)


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