18 points

Mathematics

1 answer:

bearhunter [10]3 years ago

4 0

12 is first one 7 is 2nd one 9 is the last one

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Will make brainiest if answer correctly with explanation

Ilya [14]

Answer:

Step-by-step explanation:

The small triangle has a perimeter of 7 inches.

So, since you can fit 3 triangles down the left side of the triangle, you would multiply 7 by 3 to get 21.

Then, since the other side is the same length, multiply 21 by 2 to get 42.

Next, you add 18 to 42 because at the bottom of the picture, it says 18 inches.

That's how you get a perimeter of 60 inches.

4 0

4 years ago

Tom has 2 8-foot long boards he needs to cut pieces that are 15 inches long. How many 15 inch pieces can he cut from the two boa

Ksju [112]

Answer:

Tom can cut 12 (15 inch pieces) from the two boards.

Step-by-step explanation:

We're first given foot measurements and we're asked to find the answer in inches. That means we must convert 8 feet to inches, which is a 1:12 inches conversion. 8 times 12 will give you 96, so now you will multiply that value by 2 because Tom has 2 8-foot long boards. That will give you 192 inches. Since the question is asking for 'how many 15 inch pieces he can cut from the two boards?', you will need to divide 192 inches by 15 to find the answer. This will give you 12.8 boards. Because you can't have parts of an object, the answer will be 12 whole boards.

4 0

4 years ago

Given the polynomial 2x^3+18x^2-18x-162, what is the value of the constant "k" in the factored form?

maxonik [38]

2x³+18x²-18x-162 =
2(x³+9x²-9x-81)=
2(x²(x+9)-9(x+9))=
2(x²-9)(x+9)=
2(x+3)(x-3)(x+9)

Answer: k=3

7 0

3 years ago

At a carnival, 700 tickets were sold for a total

Diano4ka-milaya [45]

Answer:

The adult tickets are 400 and the children tickets are 300.

Step-by-step explanation: