2 years ago

Calculate the mean absolute deviation of the electric bills for Family C. Round your answer to the nearest cent.

Mathematics

1 answer:

-BARSIC- [3]2 years ago

8 0

Answer:

Step-by-step explanation:

what is the amount for family c

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the width of a rectangular yard is 3 yards more than twice its length. the perimeter of the garden is 192 yards

Bas_tet [7]

Answer:

Step-by-step explanation:

W = 2L + 3, and:

P = 2W + 2L = 192

Substituting 2L + 3 for W, we get:

P = 2(2L + 3) + 2L = 192, or

4L + 6 + 2L = 192, or:

6L = 186

L = 186/6 = 31

The length is 31, the width is 62 + 3, or 65

Therefore, the perimeter P is P = 2(31) + 2(65) = 130 + 62 = 192 (OK!)

6 0

3 years ago

Kylie explained that (negative 4 x + 9) squared will result in a difference of squares because (negative 4 x + 9) squared = (neg

Eva8 [605]

Given:

The given expression is:

$(-4x+9)^2$

According to Kylie,

$(-4x+9)^2=(-4x)^2+(9)^2$

$(-4x+9)^2=16x^2+81$

To find:

The correct statement for Kylie's explanation.

Solution:

We have,

$(-4x+9)^2$

According to the perfect square trinomial $(a+b)^2=a^2+2ab+b^2$ .

$(-4x+9)^2=(-4x)^2+2(-4x)(9)+(9)^2$

$(-4x+9)^2=16x^2-72x+81$

Kylie did not understand that this is a perfect square trinomial, and she did not determine the product correctly.

Therefore, the correct option is C.

4 0

3 years ago

Read 2 more answers

Find the x value of x. If necessary round to the nearest tenth. A=49sq.in.

grigory [225]

Answer:

$9.9 ~in$ ✔︎

Step-by-step explanation:

$A=1/2 ~ base * height$

$49=1/2(x)(c)$

$98=x^2$

$x=\sqrt{98}$

$x=7\sqrt{2}$

$x=9.9$

༄❁༄❁༄❁༄❁༄

hope it helps...

have a great day!!

4 0

3 years ago

How do you simplify square root of 24 divided by 2?

castortr0y [4]

The answer to this is is √242=√6.

5 0

3 years ago

Solve 12x + 6 ≥ 9x + 12. A. x ≥ 2 B. x ≥ 6 C. x ≤ 6 D. x ≤ 2

FrozenT [24]

Answer:

Step-by-step explanation:

12x + 6 ≥ 9x + 12

12x-9x ≥ 12-6

3x ≥ 6

x ≥ 2

7 0

3 years ago