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leonid [27]
3 years ago
10

The sum of 13 and twice a number

Mathematics
1 answer:
Setler79 [48]3 years ago
7 0
This would be 13+2x because if x is the number, then 2 times it would be 2x and the sum means addition so it would be 13+2x
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Can someone please give me the answers?
kirza4 [7]
Find all the areas and add them together 
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Bases Triangles (2)  2x (8x12)/2 = 96
2 Lateral rectangles 14x10 =140 (double) = 280

Surface Area = 168 +96 + 280 = 544

7 0
3 years ago
Simplify 16^-4 by making the exponent positive
Scorpion4ik [409]
Whenever we have a negative exponent, that means that the function should be in the denomenator. then the exponent will be positive.

Example

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8 0
3 years ago
1. -3x=21<br> 2. 13x=6<br> 3. -12x=-7<br> answer the equation for points and brainiest.
andre [41]

Answer:

1. x = -7

2. x = 6/13

3. x = 7/12

Step-by-step explanation:

1. x = 21 / -3

x = -7

2. 13x = 6

x = 6 / 13

x = 6/13

3. -12x = -7

x = -7 / -12

x = 7/12

<em>Hope that helps!</em>

3 0
2 years ago
Read 2 more answers
If f(x)=4^x, find f(4)
lina2011 [118]

Answer:

\huge\boxed{f(4) = 256}

Step-by-step explanation:

<u>Given function is:</u>

f(x) = 4^x

Put x = 4

So,

f(4) = 4^4\\\\f(4) = 256\\\\\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
6 0
3 years ago
A car drove 5 miles in 30 minutes. How far will the car go in 1 hour? ​
9966 [12]

Answer: 10 miles

Step-by-step explanation:

Practically, just look at it.  30 minutes = 5 miles, 60 minutes = 10 miles

Mathmatically, find the constant of proportionality.

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  • 60 minutes = 10 miles

7 0
3 years ago
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