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dolphi86 [110]
3 years ago
14

What is the correct reason for statement 3?

Mathematics
1 answer:
olchik [2.2K]3 years ago
4 0
The answer would be Associative Property.

Hope this helps you =)
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If x = 14 cm, y = 7 cm, and z = 8 cm, what is the surface area of the figure?
Nat2105 [25]

Formula for sufrace area of rectangular prisms: S= 2 (lw + lh + wh)

for the first prism, x=14, plug 14 into 2(x)--> 2(14)=28

7,8,28

S= 2 [7(8)+7(28)+8(28)]

S= 2 (28+196+224)

S= 2(448)

S= 896

for the second prism, x is just 14

7,8,14

S= 2 [7(8)+7(14)+8(14)]

S= 2 (28+98+112)

S= 2(238)

S= 476

Add the two sufrace areas we found and the answer will be

D) S= 1,372

8 0
2 years ago
What number does a Roman numerals MDC XL IX represent​
Ksenya-84 [330]

Answer:

the answer is 1649

7 0
3 years ago
Principle = $15,500 Interest Rate = 8.75% Time = ? Years Simple Interest = $5425.00
amid [387]
We must find time by using the simple interest formula:

I = P x i x t

I is the interest
P is the total principal 
i is the rate of interest per year
t is the total time in years

In this example, when we plug our known values in, our formula looks like this: 

t = \frac{I}{i*p}

t = \frac{5425}{0.0875 * 15500}

t = 4

So time (in years) would be 4 years. 
7 0
3 years ago
What is the equation of the line that passes through the point (-2, 1) and has a<br> slope of – ?
KengaRu [80]

Accurate Explanation: Aloha! Basically, as I can see here, you're missing a slope. But you need at least 1 point and a slope in order to write an equation. Hope it helps.

5 0
3 years ago
Please help
katrin2010 [14]
\dfrac{n^2+3n+2}{n^2+6n+8}-\dfrac{2n}{n+4}\\\\=\dfrac{n^2+2n+n+2}{n^2+4n+2n+8}-\dfrac{2n}{n+4}\\\\=\dfrac{n(n+2)+1(n+2)}{n(n+4)+2(n+4)}-\dfrac{2n}{n+4}\\\\=\dfrac{(n+2)(n+1)}{(n+2)(n+4)}-\dfrac{2n}{n+4}\\\\=\dfrac{n+1}{n+4}-\dfrac{2n}{n+4}=\dfrac{n+1-2n}{n+4}=\dfrac{1-n}{n+4}

Answer:\ \boxed{B.\ \dfrac{1-n}{n+4}}
7 0
3 years ago
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