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2 years ago

Can someone help me get the correct answer

Mathematics

2 answers:

lions [1.4K]2 years ago

7 0

I think it's the answer C, because in the second and third pairs, the -2 are the same.

Vadim26 [7]2 years ago

4 0

A. Yes, because every x-value corresponds to exactly one y-value. always look at the x value (x,y) make sure its not repeated.

(-4,-1), (-3,-3), (-1,-5), (-4,-7) < this would not represent a function because there are 2 (-4) in the x value.

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-48 + 37 - 28 - 1<br> please help ! please include steps too

Svetach [21]

Answer:

-40

Step-by-step explanation:

-48 + 37 - 28 - 1

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-40

6 0

3 years ago

(5 times 5) to the power of 9

Lubov Fominskaja [6]

Hello from MrBillDoesMath!

Answer:

3814697265625

Discussion:

As 5 * 5 = 25 the Questions asks us to evaluate

25^ 9 = 3814697265625 (gotten using a calculator)

Thank you,

MrB

5 0

2 years ago

Read 2 more answers

Ok maths experts ,here is your trigonometric question

EleoNora [17]

Answer:

Step-by-step explanation:

i don't take trig :/

6 0

3 years ago

Write the raito as a fraction simplest from 12 boys and 15 girls

kiruha [24]

Step-by-step explanation: We can write a ratio using the word "to", using a colon, or using a fraction bar.

Here, since we want our ratio in simplest form,

I would use a fraction bar.

Now, the problem asks us to compare

the number of boys to the number of girls.

We know that there are 12 boys

and we know that there are 15 girls.

So our ratio is 12/15.

However, this can be reduced to 4/5.

3 0

3 years ago

The length of a rectangle is four times its width. If the area of the rectangle is 324m^2, find its perimeter.

Anuta_ua [19.1K]

Answer:

$perimeter=90$

Step-by-step explanation:

We know that the length is four times the width, so:

$l=4w$

We also know the area, which is 324 m². The formula for area:

$A=l*w$

Insert the known values:

$324=(4w)*w$

Solve for w. Simplify by removing parentheses:

$324=4w*w\\324=4w^2$

Divide 4 from both sides to isolate the variable:

$\frac{324}{4}=\frac{4w^2}{4} \\\\81=w^2$

Find the square root of both sides:

$\sqrt{81} =\sqrt{w^2} \\\\w=9$

The width is 9 m.

We know the width. Now find the length by using the area formula and inserting known values:

$324=l*9$

Solve for l. Divide both sides by 9:

$\frac{324}{9}=\frac{l*9}{9}\\\\ l=36$

The length of the rectangle is 36. (You can check: 4 times 9 is 36)

Now find the perimeter:

$P=2l+2w$

Insert values:

$P=2(36)+2(9)\\\\P=72+18\\\\P=90$

The perimeter is 90 m.

5 0

3 years ago