Triangle ABC has an area of 25 square feet and a perimeter of 65.5 feet. △ABC is dilated by a factor of 5/2 to create △DEF. \

Calculate the area of ABC using the scale factor.

Calculate the perimeter of DEF using the scale factor.

Answers

Answer 1

Answer:

Solution. To find the perimeter of \triangle ABC we use the Pythagorean Theorem which tells us that |AB|^2 = |AC|^2 + |BC|^2. Since |AC| = 5 and |BC| = 12 we find that |AB| = \sqrt{169} = 13. The perimeter of \triangle ABC is then 5 + 12 + 13 = 30 units.


Related Questions

Find the GCF of 78 and 93.

Answers

Answer:

3

Step-by-step explanation:

Greatest common factor (GCF) of 78 and 93 is 3. GCF(78,93) = 3.

Describe these points with a double inequality

Answers

Answer:

-3 < x ≤ 13

Step-by-step explanation:

the filled circle is the less/greater than or equal to sign and the open circle is a less/greater than sign.

Hi! Please help. (Geometry Btw)

Answers

Answer:

It is C

Step-by-step explanation:

Reflection in X axis

Reflecting over the x axis, the x values remain the same and the y values become opposite.


answer: c. (X,y) becomes (x,-y)

Solve:
(m+2) (m+1) - (3m - 5) (9-5m)

Answers

Step-by-step explanation:

please mark me as brainlest

Find the volume of combined solid from the given figure.​

Answers

Answer:

1944 cubic cm

Step-by-step explanation:

Find the answer by figuring out the volumes independently for each figure.  After doing that, add both volumes together to get the full volume.

Bottom figure: 1440 cubic cm

Top figure: 504 cubic cm

Add those together: 1944 cubic cm

What is 75% of 112?

(^u^)

Answers

Answer:

84

Step-by-step explanation:

asked siri

Answer:

84

Step-by-step explanation:

take the percentage and turn it into a decimal so 75 becomes .75

multiply the decimal by the number

.75 x 112 = 84

What shape am i 3equal side each 4cm not right angles

Answers

Answer:

Triangle

Step-by-step explanation:

A regular triangle has equal sides and no right angles. Hope this helps. ^^

Solve for x.
8.7 + X = 7
1.1
---
x = [?]

Answers

X = 62.4

:)

to get X, i would subtract, 71.1 - 8.7, and the answer would be X, not %100 sure though sorry.

20 people reported enjoying dancing and 11 of them were under 40. What percentage of people who enjoy dancing are under 40 years old?

Answers

Step-by-step explanation:

11 ÷ 20 = 0.55

0.55 × 100 = 55

so 55%

11/20=.55
convert .55 into a percentage
55%

Can someone help me on this question? I’ll give brainliest if you answer soon!!!

Answers

Answer:

∠ 5

Step-by-step explanation:

Given;

Which angle number represents ∠ WYU

picture

Solve;

First, we have to find the letters WYU in the picture.

Knowing that, WY is an edge, YU is an edge.

And these two sides intersect at Y.

So you get ∠ WYU. As shown in the figure in the picture, 5 represents

∠ WYU

~Learn with Lenvy~

solve pls brainliest

Answers

Answer:

y=3

Step-by-step explanation:

12y-4y=8y

8y=24

÷8. ÷8

y=3

How is the graph of g(x) = -x2-2 related to the graph of f(x)=x2?
The graph of gx) = -x2-2 is reflected across the y-axis and translated up 2 units.
The graph of g(x) = -x2–2 is reflected across the x-axis and translated up 2 units.
The graph of g(x) = -x2-2 is reflected across the y-axis and translated down 2 units.
The graph of g(x) = -x2-2 is reflected across the x-axis and translated down 2 units.

Answers

Answer:

The graph of g(x) = -[tex]x^{2}[/tex]-2 is reflected across the x-axis and translated down 2 units.

Step-by-step explanation:

- f(x)  reflects the graph over the x-axis;  f(-x) would reflect the graph over the y-axis

f(x) + k translates the graph up k units; f(x) - k translates the graph down k units

The circumference of a circle is 7.22cm and pi is 3.14, what is the diameter?

Answers

Answer:

2.30 cm

Step-by-step explanation:

Circumference of circle= πD, where D is the diameter.

Substitute all the given information into the formula:

7.22= 3.14D

Divide both sides by 3.14:

D= 7.22 ÷3.14

D= 2.30 (3 s.f.)

Thus, the diameter is 2.30 cm. (rounded off to 3 significant figures)

help me please. lesson 9.3 converse if the pythagorean theorem

Answers

Answer:

acute

Step-by-step explanation:

Here are some helpful rules that will help you out in the future with these questions.

If...

a^2 + b^2 = c^2 its a right triangle

a^2 + b^2 < c^2 its obtuse

a^2 + b^2 > c^2 its acute

so...

Since 6+8>10

its acute

A rectangular prism has a length of 3 inches, a width of 5 inches, and a height of 7 inches.

What is the volume of the prism?

Enter your answer in the box as a simplified mixed number or a decimal.


in.³

Answers

Answer:

105³

Step-by-step explanation:

3x5=15

15x7=105

105 is your answer.

What can you tell about the numbers?

Equations can be for example like: -1 ≤ x < 4

Answers

Answer:

Step-by-step explanation:

The numbers lies between 80 and 140

80 < x <140

Hollow dot at point 80 and 140 indicates that 80 and 140 are not included

please help i am confused.

Answers

The answer would be (540 - (111 + 103 + 122 + 90[because of the right angle]) and 540 is the total angle measurement of a pentagon (or a 5 sided figure)

Solve for A
ASAP ANSWER

Answers

Step-by-step explanation:

A = B

7x + 40° = 3x + 112°

7x - 3x = 112° - 40°

4x = 72°

x = 18°

A = 7x + 40°

= 7(18°) + 40°

= 126° + 40°

= 166°

hope it help

can you help to answer my question? my math is better ,but my english is bad ,can you help me,please

which inequality does the graph represent?

Answers

Answer: x ≥ -1

Step-by-step explanation:

First, we see the filled in dot, so we know x can be equal to -1. Since this is a ray, all valid values of x must be greater or equal to -1. Therefore, our answer is x ≥ -1

The answer here will be -1

A cylinder has a volume of 320 pi cubic inches and a height of 5 inches what is the radius

Answers

Answer:

As Per Provided Information

A cylinder has a volume of 320 pi cubic inches and a height of 5 inches.

We have been asked to determine the radius of the cylinder .

Using Formulae

[tex] \purple{\boxed {\bf\: Volume_{(Cylinder)} = \pi {r}^{2}h}}[/tex]

Substituting the value and let's solve for radius .

[tex] \sf \qquad \longrightarrow \: 320 \pi \: = \pi \: \times r {}^{2} \: \times 5 \\ \\ \\ \sf \qquad \longrightarrow \:320 \cancel{\pi} = \cancel{ \pi} \times r {}^{2} \: \times 5 \\ \\ \\ \sf \qquad \longrightarrow \:320 = r {}^{2} \: \times 5 \\ \\ \\ \sf \qquad \longrightarrow \:r {}^{2} \: = \cfrac{320}{5} \\ \\ \\ \sf \qquad \longrightarrow \: {r}^{2} = \cancel\cfrac{320}{5} \\ \\ \\ \sf \qquad \longrightarrow \: {r}^{2} = 64 \\ \\ \\ \sf \qquad \longrightarrow \:r \: = \sqrt{64} \\ \\ \\ \sf \qquad \longrightarrow \:r \: = 8 \: inch[/tex]

Therefore,

Radius of cylinder is 8 Inches .

A box of sunflower seeds contains p packets. Each packet of sunflower seeds contains s seeds. Which equation can be used to find the number of sunflower seeds in a box, b? *
5 points
p = sb
s = pb
b = sp
b + s = p

Answers

Answer:

b = sp

Step-by-step explanation:

box = seeds per packet

The given relation can be used to find the total number of seeds in box b, using the equation b = sp. Hence, 3rd option is the right choice.

What are equations?

Equations are relations shown between two equal algebraic expressions.

How do we solve the given question?

We are given a box of sunflower seeds, containing p packets of seeds, each of which contains s number of seeds.

We are asked to write an equation that can be used to find the total number of seeds in the box, b.

We know that the box contains p packets of seeds.

In 1 packet we have s number of seeds.

∴ In p packets, we will have an s*p number of seeds or sp seeds.

Since the box contains p packets and the total number of seeds in the box is b, then we can say that

b = the number of seeds in p packets

or, b = sp, which is the required equation.

∴ The given relation can be used to find the total number of seeds in box b, using the equation b = sp. Hence, 3rd option is the right choice.

Learn more about equations at

https://brainly.com/question/2972832

#SPJ2

-5x-21 find value of x

Answers

Answer:

The value of x = -21/5

Step-by-step explanation:

=> -5x-21 =0

=> -21 = 5x

=> -21/5 = x

Answer:

Step-by-step explanation:

you want to set the equation equal to 0

-5x - 21 = 0

add 21 to both sides to get the variable by itself

-5x = 21

divide both sides by -5

x = - 21/5

10 POINTS!


A restaurant manager collected data and created the histogram shown below.



Which of the following statements accurately describes the information in the graph?

A.

The age range with the highest number of visitors is 11-20.

B.

The age range with the highest number of visitors is 31-40.

C.

The age range with the lowest number of visitors is 1-10.

D.

The age range with the lowest number of visitors is 21-30.

Answers

Answer:

B

Step-by-step explanation:

Answer:

I think it's C

Step-by-step explanation:

if there are 15 plane 2 crash 1 breakdown how many planes are left

Answers

Answer:

15 planes

Step-by-step explanation:

none disappear, just change shape/ability. its a riddle.

Answer:

15-2-1 = 15-3 = 12.

there are 12 planes left.

Step-by-step explanation:

hope this helped have a nice day

NEED HELP! I JUST NEED HELP ON 31 PLEASSEE HELP

Answers

Answer:

A

Step-by-step explanation:

the quartiles are illustrated as 55 and 59. The average is 57.5 so 58? These are the key points on this type of graph.

what did I get wrong I got 6/8 please help

Answers

Answer:

Well I got your 1 mistake.

3 + 3 + 3 + 3 = 12 should be of diagram B not A.

hope it helps.......

Answer:

3/4

Step-by-step explanation:

You didn't simplify it it can go down to 3/4

PLSS help this is important
(will give brainliest)

Answers

Answer:

A (first one)

Step-by-step explanation:

From T to T' you add 2 to the x and subtract 3 from the y

Then you do that to the x and y on O and Y

So for O, -4+2 is -2 and 1-3=-2

then you just do that for Y and you get (0,0) when applied

If the scale factor here is 3 (k=3), and if the distance from A to B is 8 units, then what would be the distance from A’ to B’?

8

8/3

24

3

Answers

Distance between AB=8unitsScale factor=3=k

Distance between A'B':-

8k8(3)24

Option C

Which sport shows the greatest variability in players’ heights? which sport shows the least variability?

Answers

the greatest variability would be basket ball, the lease variability is horse jockey :)

In the equation "y = mx + b" which of the following statements is true?

Group of answer choices

y is the output, x is the input, m is the slope and b is the y-intercept

x is the output, y is the input, m is the slope and b is the y-intercept

y is the output, x is the input, b is the slope and m is the y-intercept

y is the output, b is the input, x is the slope and m is the y-intercept

Answers

Answer:

Its the first one, y is always the output and y =mx+b, b is always the y-intercept and m is always the slope

Step-by-step explanation:

Answer:

A. y is the output, x is the input, m is the slope and b is the y-intercept

Step-by-step explanation:

In an equation y = mx + b, we know that:

x is the input

y is the output

m is the slope

b is the y-intercept

Looking for an answer that matches these criteria, we can say that the answer is A.

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