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2 years ago

Rewrite 9(10+11+12) using the distributive property of multiplication over addition

Mathematics

2 answers:

natta225 [31]2 years ago

5 0

Answer: 9*10 + 9*11 + 9*12

Step-by-step explanation:

The distributive property of multiplication states that when a number is multiplied by the sum of several numbers, the first number can be distributed to all of those numbers and multiplied by each of them separately.

9(10 + 11 + 12) = 9*10 + 9*11 + 9*12

<h2><em>Spymore</em></h2>

harina [27]2 years ago

4 0

Answer:

90 + 99 + 108

Step-by-step explanation:

The 3 number being added should be multiplied by 9.

10 x 9 = 90.

11 x 9 = 99.

12 x 9 = 108.

Therefore, 90 + 99 + 108.

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Write an equation in slope-intercept form for points through (2, -7), parallel to 7x - 4y = 18

pav-90 [236]

Y=18-7x/-4
gradient = 7/4
parallel lines, same gradient.
y--7=7/4(x-2)
y=7x-14-28/4
y= (7x + 14)/4

6 0

2 years ago

Find the amount of tax and the tax rate. Round to two decimal places

Makovka662 [10]

Answer:

The tax amount is 15.17$

The tax rate is 12.4%.

Step-by-step explanation:

First we subtract the cost from the selling price.

137.17 - 122 = 15.17

We have found the tax amount, now for the tax rate.

If tax rate is x, then

122 * x = 137.17

Divide both sides by 122 to get

x = 137.17/122 = 1.124, or .124.

Then convert into percentage by moving the decimal to the right 2 times.

.124 = 12.4%

Hope this helps you

3 0

3 years ago

Read 2 more answers

PLEASE HELP ME!!!!!!! I think the answer is exponential but I am not 100% sure!!!!!!!

babunello [35]

It is exponentially each time you are dividing by 4/3

7 0

3 years ago

If the radius of the circle is multiplied by a factor of 3, then the area of the circle is multiplied by a factor of

Oksi-84 [34.3K]

$\bf \textit{area of a circle}\\\\
A=\pi r^2\quad 
\begin{cases}
r=radius\\
-----\\
r=\stackrel{r\times 3}{3r}
\end{cases}\implies A=\pi (3r)^2
\\\\\\
A=\pi (3^2r^2)\implies A=9(\pi r^2)$

notice, if the original area was πr², then the new area has a factor in front of it, that much.

8 0

2 years ago

Write the equation for the hyperbola with foci (–12, 6), (6, 6) and vertices (–10, 6), (4, 6).

fomenos

Answer:

$\frac{(x--3)^2}{49} -\frac{(y-6)^2}{32}=1$