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2 years ago

8

Find the perimeter and area

1 answer:

stiks02 [169]2 years ago

8 0

Answer:

The area is 63a

The perimeter is 39b

Step-by-step explanation:

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What is the value of x? <br> A:12 <br><br> B:15<br><br> C: 6<br><br> D: 30

mel-nik [20]

Answer: C

Step-by-step explanation: If this is drawn to scale, 12 15 and 30 make absolutely no sense, because if you multiply any of those numbers by 5 your gonna get a number bigger than 60.

Therefore, 6 is the answer

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2 years ago

Find f(-2) for f(x) = 5•3*x

nirvana33 [79]

Hello!

You put -2 in for x

I don't know whether it is times x or to the power of x so I will do both

5 * 3 * x

5 * 3 * -2 = -30
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5 * 3^x

5 * 3^-2

5 * 1/81 = 5/9 or 0.55555

Hope this helps!

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2 years ago

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Write a ratio, in the simplest form and a percent for the shaded area (there's a 5x4 box and 6 cubes are shaded)

Alexxandr [17]

Answer:

$\%Percent = 30 \%$

Step-by-step explanation:

Given

$Shaded = 6\ cubes$

$Box = 5\ x\ 4$

Required

Determine the percentage of the shaded cubes

First, we calculate the number of boxes:

$Box = 5\ x\ 4$

Express as multiplication

$Box = 5\ *\ 4$

$Box = 20$

This implies that there are 20 cubes in the box.

The percentage of the shaded cubes is:

$\%Percent = \frac{Shaded}{Box} * 100\%$

$\%Percent = \frac{6}{20} * 100\%$

$\%Percent = \frac{6* 100}{20} \%$

$\%Percent = \frac{600}{20} \%$

$\%Percent = 30 \%$

<em>30% were shaded</em>

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2 years ago

10n + 7 > n - 3 (5 - 3n)<br><br> plz

Ad libitum [116K]

Are you trying to figure out the value of n?

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2 years ago

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tekilochka [14]

Answer:

$\frac{1}{2}$

Step-by-step explanation:

Given that x and y are proportional and the equation relating them is

y = rx ← r is the constant of proportionality

To find r use any ordered pair from the table

Using x = 9, y = 4.5 , then

4.5 = 9r ( divide both sides by 9 )

$\frac{4.5}{9}$ = r , that is

r = $\frac{1}{2}$

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2 years ago

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