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zzz [600]
3 years ago
12

The question is on the image.​

Mathematics
1 answer:
Amiraneli [1.4K]3 years ago
7 0

Hi there!

\huge\boxed{\text{22 cm}}

We know that:

Area of a rectangle = l × w

The areas are the same, so:

3x · 4 = 6(3x - 2.5)

Simplify:

12x = 18x - 15

Solve for x:

15 = 6x

x = 2.5

Plug in this value of x to find the perimeter of rectangle B:

P = 2l + 2w

l = 6

w = 3(2.5) - 2.5 = 5

P = 2(6) + 2(5) = 22 cm

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Please please help me
Studentka2010 [4]

Answer:

?=38

average rate of change =3 (on the way they partitioned the x's)

Step-by-step explanation:

This is a line because it has the same rise/run (\frac{y_2-y_1}{x_2-x_1}) per pair of points.

That is, the following are equal:

\frac{17-5}{2-(-2)}=\frac{26-17}{5-2}

\frac{12}{4}=\frac{9}{3}

3=3

The slope (also called the rate of change) is 3.

This means the calculating of the last pair of points should have the same  rise/run.

That is we should have:

\frac{?-26}{9-5}=3

\frac{?-26}{4}=3

Multiply both sides by 4:

?-26=12

Add 26 on both sides:

?=12+26

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5 0
4 years ago
A circle has a circumference of 34 54 cm. What is the area of the circle to the nearest whole centimeter? Use 3.14
inysia [295]

Answer:

<h2>9498.5 m</h2>

Step-by-step explanation:

We know that the Circumference = 3454 cm

And we also know that the formula for the Circumference of Circle is,

2\pi \times r

So we can put the equation this way,

3454 = 2\pi \times r

So we can solve for 'r'

3454 = 2 \times 3.14 \times r \\ 3454 = 6.28r \\ r   =   \frac{3454}{6.28}  \\ r = 550

Now we have radius and we can solve for the area of the circle,

\pi \times  {r}^{2}

3.14 \times 550 \times 550  \\  = 949850

We can convert this to meter,

9498.5 m

I am not sure if this is correct just let me know thanks :)

8 0
3 years ago
Use the long division method to find the result when 12x^3+25x^2+4x-112x
slavikrds [6]

Answer:

(4x + 3) • (x + 2) • (3x - 2)

Thats finding the root polynomials hope it helps a bit

7 0
3 years ago
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rosijanka [135]

Answer:

use a ruler

Step-by-step explanation:

8 0
3 years ago
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NeTakaya

Answer:

240

Step-by-step explanation:

2*8*3*5

8 0
3 years ago
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