Drag each expression to show whether it can be used to find the area, perimeter, or neither.
Answers
Perimeter: 2(l+w)
2•l+2•w
l+w+l+w
Area: l•w
wl
Neither: l+w
Related Questions
Carter wants to know if warming up will help runners sprint faster. Thirty track and field athletes volunteered to participate in his study. He randomly assigns 15 athletes to warm-up for 10 minutes. All 30 participants sprint the same distance. He calculates the mean for each group and determines that the mean for the warm-up group was 10.7 seconds, and the mean for the other group was 13.2 seconds. To test the difference of means he re-randomized the data 54 times, and the differences are plotted in the dot plot below. What can Carter conclude from his study?
The graph shows: (3) -2.5, (6) -2.0, (9) -1.5, (12) -1.0, (6) -0.5, (4) 0.0, (3) 0.5, (7) 1.0, (3) 1.5, and (1) 2.0. The parenthesis is how many dots there is at each point.
The difference in the means is significant because a difference of 2.5 is very likely.
The difference in the means is not significant because a difference of 2.5 is very likely.
The difference in the means is significant because a difference of 2.5 is not very likely.
The difference in the means is not significant because a difference of 2.5 is not very likely.
Answers
Answer:
The answer is actually C. here's proof:
It also makes sense since 2.5 is very unlikely, so the change is significant.
a bottle holds z ounces of water. a second bottle holds 16 ounces, which is 8/5 times as much water. how much does the first bottle hold?
Answers
Answer:
10 ounces of water
Step-by-step explanation:
16=8/5
z=1
16*1=16
8/5*z=8/5z
16=8/5z
16/1.6z=10
z = 10
Answer:
10 ounces of water
Step-by-step explanation:
What is the area, in square inches, of the figure shown here?
25 POINTS PLEASE HELP A parallelogram with a height of 2 inches is shown. The height of the parallelogram is used to divide the side of the parallelogram into 5 inches, which is the length (or side) of the rectangle, and into 2 inches, which is the base of the triangle formed by the division.
10 in2
14 in2
16 in2
20 in2
Answers
Answer:
B.[tex]14in^{2}[/tex]
Step-by-step explanation:
Solve this by using one of two methods.
Split up into different shapes:
This method uses the sum of the areas of a rectangle and two triangles to find the area of the parallelogram:
[tex]A=(b*h)_{rectangle} +2*(0.5*b*h)_{triangle} \\A=(5*2)+2(0.5*2*2)\\A=10+4\\A=14in^{2}[/tex]
Use Parallelogram formula:
This formula is the same as the formula for a rectangle where you multiply the base by the height.
[tex]A=b*h\\A=(5+2)*2\\A=14in^{2}[/tex]
Answer: The answer is 14 in2
Write an equation for the perpendicular line in slope intercept form for (-3,5);y=1/3x-2
Answers
Hey there! :)
We're given the equation : y = 1/3x - 2 & coordinates : (-3, 5)
If we're looking for an equation for a perpendicular line, then we know that the slope of our new equation MUST be the negative reciprocal of the original slope. This means that you flip the slope and add or remove a negative. Example : slope = -2 ⇒ negative reciprocal slope = 1/2
Before using this information, we must first find the slope of our original equation.
Using slope-intercept form, which is : y=mx+b ; where m=slope, b=y-intercept
Ask yourself : which value is in the "m" spot and which value is in the "b" spot?
Using this, we now know that 1/3 is our slope, and -2 is our y-intervept.
So, our negative reciprocal is -3.
Use point-slope form to find the y-intercept, and coordinates (-3, 5)
Point-slope = y - y1 = m(x - x1)
y - 5 = -3(x - (-3))
Simplify.
y - 5 = -3(x + 3)
Simplify.
y - 5 = -3x - 9
Add 5 to both sides.
y = -3x + 4 ⇒ slope-intercept form
~Hope I helped! :)
Glowmart marked down it's stock 32%. What will be the sale price of a $60 jacket
Answers
Answer: $40.80
Explanation: 60*.68=40.8
Answer:
Sale price = $40.80
Step-by-step explanation:
The original price = $60
After mark down of 32% is applied,
The selling price becomes 100% - 32% = 68%
The selling price = 68% of $60 = [tex]\frac{68}{100}[/tex] × $60 = $40.80
I don't know how to graph y=6/5x+1
can someone help me?
Answers
So this equation is in slope intercept form:
y = mx + b
m is slope
b is y-intercept
This means that for this equation the slope is 6/5 and the y-intercept is (0 , 1)
Look at image below for the graph
Hope this helped!
~Just a girl in love with Shawn Mendes
Can someone answer this for me ASAP please ?
Answers
Answer:
The expression which is equivalent to (k ° h)(x) is [tex]\frac{1}{(5 + x)}[/tex] ⇒ 2nd answer
Step-by-step explanation:
* Lets explain the meaning of the composition of functions
- Composition of functions is when one function is inside of an another
function
# If g(x) and h(x) are two functions, then (g ° h)(x) means h(x) is inside
g(x) and (h ° g)(x) means g(x) is inside h(x)
* Now lets solve the problem
∵ h(x) = 5 + x
∵ k(x) = 1/x
- We need to find (k ° h)(x), that means put h(x) inside k(x)
* Lets replace the x of k by the h(x)
∵ k(x) = [tex]\frac{1}{x}[/tex]
∵ h(x) = 5 + x
- Replace the x of k by 5 + x
∴ k(5 + x) = [tex]\frac{1}{5 + x}[/tex]
∴ The expression which is equivalent to (k ° h)(x) is [tex]\frac{1}{5+x}[/tex]
Which expression shows how to convert 60 hours to days?
Answers
Answer:
2.5 Days
Step-by-step explanation:
Answer:
2.5 days
Step-by-step explanation:
PLEASE ANSWER THIS AND EXPLAIN HOW YOU GOT THE ANSWER.
9 - 3 ÷ 1/3 + 1 =
Answers
Answer:
Step-by-step explanation:
If you use pemdas, you would do 3÷1/3 which equals 9. Then do 9-9, which equals 0. Then, do 0+1, which equals 1. Hope this helps! <3
[tex]9 - 3 \div \frac{1}{3} + 1 = [/tex]
Divisions go first, to do it we have to reverse the fraction and turn ÷ into ×
[tex] = 9 - 3 \times 3 + 1 = [/tex]
Now the multiplication
[tex] = 9 - 9 + 1 = [/tex]
[tex] = 1[/tex]
The work of a student to find the dimensions of a rectangle of area 8 + 12x and width 4 is shown below:
Step 1: 8 + 12x
Step 2: 4(2) 4x2)
Step 3: 4(4 + 8x)
Step 4: Dimensions of the rectangle are 4 and 4 + 8x
In which step did the student first make an error and what is the correct step?
Step 2: 4(2) + 4x(2)
Step 2: 4(2) + 4(3x)
Step 3: 4 + (4+8x)
Step 3: 4 + (4• 8x)
Answers
Answer:
Step 2: 4(2) + 4(3x)
Step-by-step explanation:
By definition, the area of a rectangle is given by:
Area = Length × Width
In this case, we know that:
Area = 8 + 12x
Width = 4
Therefore:
Step 1: 8 + 12x
Step 2: 4(2) + (4)(3x)
Step 3: 4(2 + 3x)
Therefore, the dimensions of the rectangle are 4 and 2 + 3x.
The mistake was made in STEP 2. Instead of 4(2) + 4(x2) it should be 4(2) + 4(3x). Which is the second option.
Triangle ABC is dilated so that the side lengths of the image are three times the lengths of their corresponding sides. Which of the following statements are true? Select all that apply.
AB ≅ A'B'
CB ~ C'B'
∠A ≅ ∠A'
CA ≅ C'A'
∠B ~ ∠B'
Answers
Answer:
∠A ≅ ∠A' and CB ~ C'B'
Step-by-step explanation:
In a dilation, you get a SIMILAR figure. It will have the same shape, but a different size.
Similar figures have the same angle measures but the side lengths will change.
Any of the answers with congruent (≅) angles are correct:
∠A ≅ ∠A'
Any of the answers with SIMILAR (~) side lengths are correct:
CB ~ C'B'
Answer:
∠A ≅ ∠A' and CB ~ C'B'
Step-by-step explanation:
Evaluate the following expression (-5+7x1)-9x5
Answers
Final answer:
To evaluate the expression (-5+7x1)-9x5, follow the order of operations: calculate inside the parentheses, multiply, and then subtract, resulting in a final answer of 47.
Explanation:
To evaluate the expression (-5+7×1)-9×5, we need to follow the order of operations, often remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction). Let's break down the expression step by step:
Inside the parentheses: -5 + (7 × 1) = -5 + 7 = 2.
Multiply: -9 × 5 = -45.
Subtract the value obtained from step 2 from the result of step 1: 2 - (-45).
Change the subtraction of a negative value to addition: 2 + 45 = 47.
Thus, the expression (-5+7×1)-9×5 evaluates to 47.
What is the series using summation notation?
36+69+102+...+267
Answers
first term =36
second term=69
So common difference=69-36=33
checking. 69+33=102
36=3+33
so the series in AP Becomes as...
(3+33) ,(36+33) ,(36+2(33)) ... (36+7(33))
So The Answer is...
(refer above attachment.)
Hope it helps...
Regards,
Leukonov/Olegion.
Two stores have movies to rent
The first store charges a $12.50-per-month membership fee plus
$1.50 per movie rented
The second store has no membership fee but charges $3.50 per movie
rented.
What is the minimum number of movies a person would need to rent in a month
for the first store to be a better deal?
Answers
Answer:7
Step-by-step explanation:
In the first store, you pay 12.5+1.5x per x movies
In the second store, you pay 3.5x per x movies
The first store offers a better deal when:
12.5 + 1.5x > 3.5x
12.5 > 2x
6.25 > x
Which means if you rent minimum 7 movies in month, you should go to the first store
Answer:
7Step-by-step explanation:
We know that the first store charges $12.50 per month, which is a initial condition, and charges additionally $1.50 per movie, which is variable, this represents the ratio of change, so this can be expressed as
[tex]\$12.50 + \$1.50x[/tex]
Where [tex]x[/tex] represents movies.
Now, the second store doesn't charge and membership fee, just it charges a cost per movie which is $3.50.
Then, to solve the minimum number of movies needed to Plan A be the best choice, we just have to solve the following inequality
[tex]\$12.50 + \$1.50x> \$3.50[/tex]
Which expresses the case where Plan A is a better choice, solving for [tex]x[/tex], we have
[tex]\$12.50 + \$1.50x> \$3.50x\\\$1.50x - \$3.50x >-\$12.50\\(-1)(-2x)>(-12.50)(-1)\\2x<12.50\\x<\frac{12.50}{2}\\ x<6.25[/tex]
Which means that the minimum number of movies is 7, which is the next whole number after 6.
(08.01)
Line R is represented by the following equation: x + y = 2
Which equation completes the system that is satisfied by the solution (1, 1)?
2x + y = 2
4x − 2y = 2
2x − 2y = 2
x + y = 4
Answers
Answer:
B: 4x − 2y = 2
B: 4x − 2y = 2 equation completes the system that is satisfied by the solution (1, 1).
What is a linear equation?A linear equation has one or two variables.
No variable in a linear equation is raised to a power greater than 1.No variable is used as the denominator of a fraction. A linear equation is defined as an equation that is written in the form of ax+by=c. When solving the system of linear equations, we will get the values of the variable, which is called the solution of a linear equation.solving this we will get the valve of Y if x is given.
explanation:
line R = x + y = 2
putting the value of X=1 & y=1 as given (1,1)
x+y =2
1+1= 2
therefore, 4x - 2y = 2
4(1) - 2(1)= 2 answer
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anyone can solve this question?
Answers
Answer:
see explanation
Step-by-step explanation:
Given the 2 equations
x² + y² = 5 → (1)
2x + y = 4 → (2)
Rearrange (2) expressing y in terms of x by subtracting 2x from both sides
y = 4 - 2x → (3)
Substitute y = 4 - 2x in (1)
x² + (4 - 2x)² = 5 ← expand factor on left side
x² + 16 - 16x + 4x² = 5
5x² - 16x + 16 = 5 ( subtract 5 from both sides )
5x² - 16x + 11 = 0 ← in standard form
(5x - 11)(x - 1) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 1 = 0 ⇒ x = 1
5x - 11 = 0 ⇒ 5x = 11 ⇒ x = [tex]\frac{11}{5}[/tex]
Substitute each of these values into (3) for corresponding values of y
x = 1 : y = 4 - 2 = 2 ⇒ P(1, 2)
x = [tex]\frac{11}{5}[/tex] : y = 4 - [tex]\frac{22}{5}[/tex] = - [tex]\frac{2}{5}[/tex]
Hence Q( [tex]\frac{11}{5}[/tex], -[tex]\frac{2}{5}[/tex] )
Leila is considering buying her first home. The house she is interested in buying is priced at $125,000. Leila can put down a $20,000 payment, and she qualifies for a 30-year mortgage at 6%. What will her monthly mortgage payment be?
Answers
Answer:
* The monthly mortgage payment is $629.53 ⇒ answer C
Step-by-step explanation:
* Lets explain how to solve the problem
- Leila is considering buying her first home
- The house she is interested in buying is priced at $125,000
∴ She can put $20000 down payment
* Lets find the balance to be paid off on mortgage
∴ The balance = 125000 - 20000 = 105000
- She qualifies for a 30-year mortgage at 6%
* Lets find the rule of the monthly payment
∵ [tex]pmt=\frac{\frac{r}{n}[P(1+\frac{r}{n})^{tn}]}{(1+\frac{r}{n})^{tn}-1}[/tex] , where
- pmt is the monthly mortgage payment
- P = the initial amount
- r = the annual interest rate (decimal)
- n = the number of times that interest is compounded per unit t
- t = the time the money is invested or borrowed for
∵ P = 105000
∵ r = 6/100 = 0.06
∵ n = 12
∵ t = 30
∴ [tex]pmt=\frac{\frac{0.06}{12}[105000(1+\frac{0.06}{12})^{30(12)}}{(1+\frac{0.06}{12})^{30(12)}-1}[/tex]
∴ [tex]pmt=\frac{0.005[105000(1.005)^{360}]}{(1.005)^{360}-1} =629.528[/tex]
* The monthly mortgage payment is $629.53
Which geometric term is best described as a straight path between two points?
A. Angle
B. Point
C. vertex
D. Line Segment
Answers
Answer:
the answer is d
Step-by-step explanation:
A line segment is best described as a path between two points.
What is a line segment?A line segment is a line that is definite from one point to another. The length of a line segment can be measured and it is not infinite.
We can choose the correct answer below:Four options are given.
We have to find the geometric term that is best described as a straight path between two points.
From the given options, the only term that satisfies these conditions is a line segment.
A line segment is a line that is definite from one point to another. The length of a line segment can be measured and it is not infinite.
Therefore, we have found that a line segment is best described as a path between two points. The correct answer is option D.
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I need help please
Answers
Answer:
b
Step-by-step explanation:
it makes sense because they all are going down by 1 side each time
B) the triangle because each figure is loosing one side
A circle has its center at (6,-3) and a radius of 5 units. What is the equation of
the circle?
Answers
[tex]\bf \textit{equation of a circle}\\\\ (x- h)^2+(y- k)^2= r^2 \qquad center~~(\stackrel{6}{ h},\stackrel{-3}{ k})\qquad \qquad radius=\stackrel{5}{ r}\\[2em] [x-6]^2+[y-(-3)]^2=5^2\implies (x-6)^2+(y+3)^2=25[/tex]
Answer:
Step-by-step explanation:
The x value for the center is part of the x^2 part of the equation.
The y value for the center is part of the y^2 part of the equation.
The radius is squared.
(x - 6)^2 + (y + 3)^2 = 5^2
Notice the sign change for the center. When you move horizontally the sign of the center changes sign in the circle's equation.
The graph is included to show you that.
Round 96 cent. Amount. To the nearest dollar
Answers
Answer:
About 1 dollar.
Step-by-step explanation:
First we must establish the possible values that 96 cents can be rounded to.
We know that 96 cents is more than nothing, or 0. We also know that a dollar is 100 cents. This means 96 cents is in between 0 and 1 dollar. We just have to determine whether 96 is closer to 100 cents or 0 cents.
To do this find the difference between 96 and each value.
100-96 = 4
96-0 =96
The difference between 96 and 100 is smaller, so the values are closer and 96 should be rounded to a dollar.
if Mark wants to see how the price of gas has increased over the last five years, which type of graph would best illustrate this data line graph circle graph bar graph pictograph
Answers
Line graph because it shows differences
im taking the flvs test and need the answer asapppppp
During a certain time of the year, the angle of the sun's rays at location C is smaller than the angle of the sun's rays at location D. Which location experiences cooler temperatures at that time?
Location C, because the smaller angle means the sunlight is spread out over more area
Location D, because the larger angle means the sunlight is spread out over more area
Location C, because Earth is tilted away from the sun at this time
Location D, because Earth is tilted towards the sun at this time
Answers
Answer:
d
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
I just finished the quiz, and this was my only incorrect one. The correct answer is A. Also, think logically. If the sun is spread out over more area, then it must be at a smaller angle. This leads to cooler temperatures, of course.
Write the expression in terms of cosine. Please help.
Answers
Answer:
sin(81)
Step-by-step explanation:
Since the sine of something is the ratio of the opposite side to the hypotenuse, to get the same ratio in cosine, you take the complement of the angle. So the answer is sin(90 - 9) or sin(81).
The expression in terms of cosine cos 81°. The expression is obtained by the trigonometric rules.
What is trigonometry?Trigonometry deals with the relationship between the sides and angles of a right-angle triangle.
The given expression is;
sin9°
The expression in terms of cosine.
sin 9°= sin(90-81°)
sin 9°= cos 81°
Hence,the expression in terms of cosine cos 81°.
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What is the approximate value of f(5) for the function f(x)=6.87(2.5)(x – 1)?
Answers
Answer:
68.7
Step-by-step explanation:
We need only estimate (approximate) the value of f(x) at x = 5:
f(x)=6.87(2.5)(x – 1) → f(5)=6.87(2.5)(5 – 1).
Note that 2.5(4) = 10, so now we have (exactly) f(5)=6.87(10), which, in turn, is
equal to 68.7.
#5! And #4 revisions!
Answers
Answer:
4. Your working and answers are correct: x = 44, y = 43.
5. GH = 60°
Step-by-step explanation:
5. Arc GH is double the inscribed angle GFH, so we have ...
2(4x+2) = 9x-3
8x +4 = 9x -3 . . . . . simplify
7 = x . . . . . . . . . . . . add 3-8x
Then the arc's measure is ...
(9·7 -3)° = (63 -3)° = 60°
Answer:
Step-by-step explanation:
Your working and answers are correct: x = 44, y = 43.
5. GH = 60°
Which trigonometric function is being used if we get the fraction 6/10 as our answer? Question 3 options: sin(A) cos(A) tan(A) tan(gerine)
Answers
Answer:
cos(A)Step-by-step explanation:
For angle A we have
opposite = 8
adjacent = 6
hypotenuse = 10
sin A = opposite/hypotenuse
cos A = adjacent/hypotenuse
tan A = opposite/adjacent
cot A = adjacent/opposite
6/10 = adjacent/hypotenuse = cos A
The trigonometric function of the triangle is given by cos A = 6/10
What are trigonometric relations?Trigonometry is the study of the relationships between the angles and the lengths of the sides of triangles
The six trigonometric functions are sin , cos , tan , cosec , sec and cot
Let the angle be θ , such that
sin θ = opposite / hypotenuse
cos θ = adjacent / hypotenuse
tan θ = opposite / adjacent
tan θ = sin θ / cos θ
cosec θ = 1/sin θ
sec θ = 1/cos θ
cot θ = 1/tan θ
Given data ,
Let the triangle be represented as ΔABC
where the measure of ∠ABC = 90°
Now , from the trigonometric relations ,
cos θ = adjacent / hypotenuse
So , on simplifying , we get
The measure of BC = 6 units
The measure of AB = 8 units
The measure of AC = 10 units
cos A = 6 / 10
Hence , the measure of cos A of triangle is cos A = 6 / 10
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Write an equation to describe the variation. Use k for the constant of proportionality.
y varies directly as u and inversely as p^4
Answers
[tex]\bf \qquad \qquad \textit{joint compound proportional variation} \\\\ \begin{array}{llll} \textit{\underline{y} varies directly with \underline{x}}\\ \textit{and inversely with \underline{z}} \end{array}\implies y=\cfrac{kx}{z}\impliedby \begin{array}{llll} k=constant\ of\\ \qquad variation \end{array} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ \stackrel{\textit{\underline{y} varies directly as \underline{u} and inversely as }p^4}{y=\cfrac{ku}{p^4}}[/tex]
A spinner is divided into 5 sections.You spin the spinner once. there are 2 parts in the white section and 3 parts in the dark.
* Find the probability that the spinner lands on a white section.
*Find the probability that the spinner lands on a dark section
Answers
Answer:
White: 2/5
Dark: 3/5
Step-by-step explanation:
There are 5 sections and there are 2 white spots and 3 dark spots.
So, 2 out of the 5 sections are white which is 2/5 and 3 out of the 5 sections is dark which is 3/5.
Answer:
The probability that the spinner lands on a white section is [tex]\frac{2}{5}[/tex] .The probability that the spinner lands on a dark section is [tex]\frac{3}{5}[/tex] .Step-by-step explanation:
Given : The total number of sections = 5
The number of white sections = 2
The number of dark sections =3
Now, the probability that the spinner lands on a white section is given by :-
[tex]\text{P(white)}=\dfrac{\text{Number of white sections}}{\text{total sections}}\\\\=\dfrac{2}{5}[/tex]
Now, the probability that the spinner lands on a dark section is given by :-
[tex]\text{P(dark)}=\dfrac{\text{Number of dark sections}}{\text{total sections}}\\\\=\dfrac{3}{5}[/tex]
How to rename 8 2/3 = 7 ?/3
Answers
let's firstly convert the mixed fractions to improper fractions and proceed from there.
[tex]\bf \stackrel{mixed}{8\frac{2}{3}}\implies \cfrac{8\cdot 3+2}{3}\implies \stackrel{improper}{\cfrac{26}{3}}~\hfill \stackrel{mixed}{7\frac{x}{3}}\implies \cfrac{7\cdot 3+x}{3}\implies \stackrel{improper}{\cfrac{21+x}{3}} \\\\[-0.35em] ~\dotfill[/tex]
[tex]\bf \cfrac{26}{3}=\cfrac{21+x}{3}\implies \stackrel{\textit{multiplying both sides by }\stackrel{LCD}{3}}{3\left( \cfrac{26}{3} \right)=3\left( \cfrac{21+x}{3} \right)}\implies 26=21+x\implies \boxed{5=x} \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ ~\hfill 8\frac{2}{3}=7\frac{5}{3}~\hfill[/tex]
7 5/3 if that’s what your asking
8 2/3 is equal to 7 5/3