3 years ago

The lengths, in seconds, of four folk songs are

Mathematics

1 answer:

DIA [1.3K]3 years ago

8 0

Answer:

C. 19.5

Step-by-step explanation:

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Stells [14]

your answer is B. I believe im not 100% sure though.

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3 years ago

Which sequence of transformations will result in similar, but not congruent, figures?

Rudik [331]

D.dilation changes the size is your answer. Hope this helps!

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Sylvia has three pet gerbils. if two of her gerbils each has two babies every two months, how many babies will the gerbils has a

katen-ka-za [31]

Answer:

They will have 24 babies in one year

Step-by-step explanation:

All you need to do is add 6 babies every two months starting in January. Include January as the gerbils having their first 6 babies. Every 2 months includes 4 months out of the year. 6*4 = 24 babies.

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3 years ago

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Describe and correct the error in determining wheather (8,11) is a solution of y-x=3

Burka [1]

(8, 11) is the correct solution. x = 8, y = 11

Plug it in:

11-8=3

That's correct.

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3 years ago

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For what values of $x$ is it true that $x^2 - 5x - 4 \le 10$? Express your answer in interval notation.

dybincka [34]

Answer:

x ∈ [-2, 7]

Step-by-step explanation:

The given equation ...

x^2 -5x -4 ≤ 10

can be rewritten as ...

x^2 -5x -14 ≤ 0

and factored as ...

(x +2)(x -7) ≤ 0

Clearly, the "or equal to" condition will be met when x=-2 and x=7. For values of x between these numbers, one factor is negative and the other is positive. Hence the product will be negative. So, numbers in that interval are the solution set.

x ∈ [-2, 7]

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3 years ago