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Aleks [24]
3 years ago
13

square A has a side length (2x-7) and square B has side length (-4x+18) how much bigger is the perimeter of square B than square

A?
Mathematics
1 answer:
Paladinen [302]3 years ago
4 0
To make things easier, we can assume a value of x in order to substitute to each expression and obtain the side length of each. We can calculate for perimeter of each square. Then, compare them. We do as follows:

Assume x = 4
Square A
2x - 7 = 2(4) - 7 = 1
P = 4(1) = 4

Square B
-4x + 18 = -4(4) + 18 = 2
P = 4(2) = 8

Therefore, the perimeter of B is 2 than the perimeter of A.

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HELP me with These questions
Feliz [49]

Answer: 13.96 in²

<u>Step-by-step explanation:</u>

  • radius (r)

d = 2r

16 = 2r

8 = r

  • angle in radians (θ)

\frac{180}{\pi} =\frac{25}{\theta}

180(θ) = 25(π)

      θ  = \frac{25}{180}\pi

      θ  = \frac{5}{36}\pi

  • Area (A)

A = \frac{1}{2}r² θ

   = \frac{1}{2}(8)^{2}(\frac{5}{36}\pi)

   = \frac{40}{9}\pi

   = 13.96

*************************************************************************

Answer: 12π

<u>Step-by-step explanation:</u>

s = rθ

  = 60(\frac{\pi }{5})

  = 12π

*************************************************************************

Answer: 22.440 cm²

<u>Step-by-step explanation:</u>  

A = \frac{1}{2}r²θ

   = \frac{1}{2}(10)²(\frac{\pi} {7})

   = \frac{50}{7}\pi

   = 22.440

*************************************************************************

Answer: 270°, 630°, -450°, -810°

<u>Step-by-step explanation:</u>  

positive:  -90 + 360 = 270

                                    270 + 360 = 630

negative: -90 - 360 = -450

                                   -450 - 360 = -810

*************************************************************************

Answer: \frac{3\pi} {4}

<u>Step-by-step explanation:</u>  

  \frac{19\pi} {4} - 2\pi

= \frac{19\pi} {4} - \frac{8\pi} {4}

= \frac{11\pi} {4}

\frac{11\pi}{4} - 2\pi

= \frac{11\pi} {4} - \frac{8\pi} {4}

= \frac{3\pi} {4}

If you subtract another 2π, you will end up with a negative value.  The question asks for the smallest positive value.

5 0
4 years ago
A pan with its lid weighs 2.6 kg and the lid alone weighs 400g.
Rashid [163]

Answer:

2.6 : 400 -----convert both to either grams or kg, i'm doing grams

2600 : 400 ----simplify by 200

13:2 is lowest

8 0
3 years ago
ANSWER ASAP PLEASE
ruslelena [56]

Answer:

jim is correct, x <em>does</em> equal 7°. justify your answer by putting seven back into the equation. it gives you back that 180 equals 180, therefore it is correct

Step-by-step explanation:

so, all angles of a triangle have to add up to 180;

(15x) + (8x - 11) + (3x + 9) = 180

15x + 8x - 11 + 3x + 9 = 180

add your common numbers

26x - 2 = 180

add 2

26x = 182

divide 26

x = 7

put it back into the equation

15(7) + 8(7) - 11 + 3(7) + 9 = 180

180 = 180

3 0
3 years ago
A farmer has some hens and goats. He counts a total of 60 eyes and 86 feet between them. How many hens does he have?.
ra1l [238]

The farmer has 17 hens.

<h3>What is a linear equation in two variables ?</h3>

An equation is linear if has highest degree of 1 and it has two variables.Generally they are in x and y.

For example -: 2x + 3y = 10

According to the given question a farmer has some hens and goats. He counts a total of 60 eyes and 86 feet between them.

Let us denote Hens by H and Goats by G.

We know both of them has 2 eyes each and we also know that a Hen has 2 legs and a Goat has 4 legs.

There fore the given data we can form two equations.

2H + 2G = 60 and 2H + 4G = 86.

Solving these two equations we have G = 13 and H = 17.

learn more more about linear equation in two variables here :

brainly.com/question/24085666

#SPJ4

3 0
2 years ago
Sorry for asking again but I really need help please and thank you
aleksandrvk [35]

Answer:

i d k

Step-by-step explanation:

8 0
3 years ago
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