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3 years ago

15

Can you help me find the area?

2 answers:

mamaluj [8]3 years ago

8 0

Answer: $9m^{2}$

Step-by-step explanation:

3m × 3m = 9m

Dafna1 [17]3 years ago

3 0

Answer:

the radius of one of those circles would be half of 3m so if would then equal 1.5m

When you are finding the radius it always equals half of the diameter of a circle.

ANSWER- 1.5m

ops i answered the wrong question

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A school is planning to construct two rectangular play areas in the playground. The length of play area A must be 1 foot longer

Anna11 [10]

Answer:

А.The system has two solutions, but only one is viable because the other results in a negative width.

Step-by-step explanation:

Given

Let:

$L_A \to$ length of play area A

$W_A \to$ width of play area A

$L_B \to$ length of play area B

$W_B \to$ width of play area B

$x \to$ Area of A

$y \to$ Area of B

From the question, we have the following:

$L_A = 1 + 4W_A$

$W_B = 2 + W_A$

$L_B = 2 + 3W_B$

$x = y$

The area of A is:

$x = L_A * W_A$

This gives:

$x = (1 + 4W_A) * W_A$

Open bracket

$x = W_A + 4W_A^2$

The area of B is:

$y = L_B * W_B$

$y = (2 + 3W_B) * ( 2 + W_A)$

Substitute: $W_B = 2 + W_A$

$y = (2 + 3(2 + W_A)) * ( 2 + W_A)$

Open brackets

$y = (2 + 6 + 3W_A) * ( 2 + W_A)$

$y = (8 + 3W_A) * ( 2 + W_A)$

Expand

$y = 16 + 8W_A + 6W_A + 3W_A^2$

$y = 16 + 14W_A + 3W_A^2$

We have that:

$x = y$

This gives:

$W_A + 4W_A^2 = 16 + 14W_A + 3W_A^2$

Collect like terms

$4W_A^2 - 3W_A^2 + W_A -14W_A - 16 =0$

$W_A^2 -13W_A - 16 =0$

Using quadratic calculator, we have:

$W_A = -14.1$ or $W = 1.13$ --- approximated

But the width can not be negative; So:

$W = 1.19$

7 0

3 years ago

My little sister needs help in this and I don't remember.

Anna71 [15]

You have to have the same denominator for both fractions, so I would multiply 3/4 by 3 that would give you 9/12 and the other one is 7/12. This means that the final answer would be 9/12>7/12.

7 0

2 years ago

Select the correct answer.

katovenus [111]

Answer is
D
(You are welcome)

4 0

3 years ago

Given: Right triangle ABC with altitude Line segment C D

Ipatiy [6.2K]

Answer:

✔ a/f

✔ cf

✔ c/b

✔ cf + ec

✔ c

Step-by-step explanation:

just did it on edg

4 0

3 years ago

What is the y-intercept of the graph of the function f(x) = x^2+3x+5

Amanda [17]

Answer:

5

Step-by-step explanation:

Plug x in as 0.

f(x)=0+0+5

f(x)=5

6 0

3 years ago