4 years ago

The velocity of sound in air is given by the equation

Mathematics

1 answer:

Masja [62]4 years ago

3 0

I think the answer is B

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2xГ3+7x<br> ________<br> Г6x

densk [106]

the answer is 1x

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3 years ago

If a lb of beef cost $4.25, how much would 1 1/4 lb cost?

AlladinOne [14]

Step-by-step explanation:

$4.25×1 1/4=$4.25/1×5/4=$21.25/4=$5.25

8 0

3 years ago

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Find the value of x and the perimeter of the following shapes:

ratelena [41]

Answer:

x=2, perimeter=14

Step-by-step explanation:

Finding x

(x+1)(x+2)

x^2+2x+x+2=12

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x^2-2x+5x-10

x(x-2)5(x-2)

(x+5)(x-2)

x=-5

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Length or Width should be a positve number.

x=2

Perimeter:

3+3+4+4=14

5 0

3 years ago

What is the third term of the sequence described by the following explicit formula? an = 9 + (n - 1)8

worty [1.4K]

Answer: Solve for a: a = $\frac{8n+1}{n}$

Solve for n: $n=\frac{1}{a-8}$

Step-by-step explanation:

solve for n: Move all terms to the left side and set them equal to zero. Then set each factor equal to zero.

solve for a: Divide each term in an = 9 + (n−1) ⋅ 8 by n and simplify.

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2 years ago

6 1/4 - 2 3/8 explain

EleoNora [17]

it is 3.875

if you subract the two fraction it makes 31/8. then devide it which makes 3.875

4 0

4 years ago

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