3 years ago

The expression 3(x-9) is equivalent to

Mathematics

1 answer:

11111nata11111 [884]3 years ago

8 0

Answer:

3(x)-3(9)

Step-by-step explanation:

The brackets means you times everything within the brackets with everything outside it. So it would be 3 times x take away 3 times 9

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A municipal electrical utility charges customers a $15 per month fee plus 12 cents per kilowatt-hour of energy used. Write an eq

ale4655 [162]

Answer:

C(x) = 15 + 12 * x

Step-by-step explanation:

Cost = monthly fee plus cost per hour * hours

C(x) = 15 + 12 * x

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3 years ago

What’s the answer?.....

DerKrebs [107]

Answer:

y & z

Step-by-step explanation:

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3 years ago

Two fair, 6-sided dice are rolled, what is the probability that their product is perfect square

cricket20 [7]

Sample space of two fair 6 sided dice is 36.
Product = perfect square are (1, 1), (1, 4), (2, 2), (3, 3), (4, 4), (5, 5), (6, 6)
Probability that their product is perfect square = 7/36

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3 years ago

The width of a rectangle is 7 less than twice the length. If the perimeter of the rectangle is 43.6 inches, what is the area of

fgiga [73]

half of 43.6 is 21.8

9.6+12.2=21.8

9.6 length

12.2 width

9.6*12.2=117.12

so the area would be 117.12

8 0

3 years ago

A construction company makes cement stairs from a wooden mold. The construction company must calculate the volume of the mold to

Dahasolnce [82]

Considering the volume of a rectangular prism, it is found that the volume of the wooden mold is given by:

C. 6,000 in³

<h3>What is the volume of a rectangular prism?</h3>

The volume of a rectangular prism of length l, width w and height h is given by:

$V = lwh$

In this problem, the wooden mold is composed by two rectangular prisms:

The first has dimensions of 25 in, 10 in and 12 in.

The second has dimensions of 20 in, 12 in and 12 in.

Hence the volume in cubic inches is given by:

$V = 25(10)(12) + 20(12)(12) = 5880$

Rounding, it is closest to 6000 in³, hence option C is correct.

More can be learned about the volume of a rectangular prism at brainly.com/question/17223528

7 0

2 years ago