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DIA [1.3K]
3 years ago
13

HELP THIS IS DUE IN AN HOUR!!!​

Mathematics
1 answer:
umka2103 [35]3 years ago
8 0

Answer:

The perimeter of the first question is 62

If you draw it, you'll you'll see that it's a rectangle. The length of each side is calculated by adding the widths and heights as in the photo ( red ), and then adding them up. 13 + 18 + 13 + 18 = 62

You do the same with question 2, but this time the rectangle is smaller. (green in the photo)

So the perimeter is:

13 + 14 + 13 + 14 = 54

The answer to question 3 is (-15, -5) as drawn in the photo.

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Solve the equation 8y + 4x=5 for y. Oy=32x + 40 0 y = 40 – 32x o y= J +3 5. o y=​
Liono4ka [1.6K]

Answer:

The Last One

Step-by-step explanation:

8y = 5 - 4x

y = 5/8 - (1/2)x

5 0
2 years ago
What are the dimensions of a rectangular box with a volume of 50b 3 + 75b2 - 2b - 3?
Inessa [10]

Answer:

\large\boxed{(2b+3)\times(5b-1)\times(5b+1)}

Step-by-step explanation:

The formula of a volume of a rectangular box:

V=lwh

<em>l</em><em> - lenght</em>

<em>w</em><em> - width</em>

<em>h</em><em> - height</em>

V=50b^3+75b^2-2b-3=25b^2(2b+3)-1(2b+3)\\\\=(2b+3)(25b^2-1)=(2b+3)(5^2b^2-1^2)\\\\=(2b+3)\bigg((5b)^2-1^2\bigg)\qquad\text{use}\ a^2-b^2=(a-b)(a+b)\\\\=(2b+3)(5b-1)(5b+1)

Therefore the dinemsions of thisp prism are:

(2b+3)\times(5b-1)\times(5b+1)

5 0
2 years ago
Read 2 more answers
PLEASE HELP TIMED TEST What is the value of x in the matrix equation below?
Ksivusya [100]

Answer:

x = 1

Step-by-step explanation:

Given the matrix;

-2\left[\begin{array}{ccc}x&-1\\3&5\end{array}\right] + \left[\begin{array}{ccc}3&8\\-1&6\end{array}\right] = \left[\begin{array}{ccc}x&10\\-7&-4\end{array}\right]

Converting to equations

From the first row of each matrices

-2x + 3 = x

Collect the like terms

-2x - x = -3

-3x = -3

x = -3/-3

x = 1

Hence the value of x is 1

7 0
2 years ago
1.) 15 — 2y = Зу Help!!!​
Rudiy27

Answer:

y=3 the answer is 9 to the equation

5 0
3 years ago
Witch one is bigger 3kL or 30,000 L
horsena [70]
3 kL = 3000 L so 30000 L is bigger
8 0
3 years ago
Read 2 more answers
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