Answer:
Step-by-step explanation:
Time it takes to burn entire cancle 10 hrs.
the heights from 0 hrs to 4 hrs is at first 10 inches tall but then its 6 inches tall when it hits the 4 hr mark.
it burns one inch every hr
the origional height is 10 inches
5 mph to get that answer you use the speed equation
speed(mph)=distance(in miles)/time(in hours)
2.5
------ = 5 mph
.5
its two ways gather all the relevant information first or throw all the non relevant information out first
Answer:
- x = 4
![2^2*3*7](https://tex.z-dn.net/?f=2%5E2%2A3%2A7)
Step-by-step explanation:
First, we add 16 and 28 ![16+28=44](https://tex.z-dn.net/?f=16%2B28%3D44)
Now we have to solve for x
We know we have to do parenthesis first so ![(4+7)=11](https://tex.z-dn.net/?f=%284%2B7%29%3D11)
![44=x(11)](https://tex.z-dn.net/?f=44%3Dx%2811%29)
Then we divided both sides by 11
![\frac{44}{11} =\frac{11x}{11}](https://tex.z-dn.net/?f=%5Cfrac%7B44%7D%7B11%7D%20%3D%5Cfrac%7B11x%7D%7B11%7D)
![x=4](https://tex.z-dn.net/?f=x%3D4)
To find the Prime Factorisation of 84 we have to divide 84 by the smallest prime number which is 2
So ![\frac{84}{2} = 42](https://tex.z-dn.net/?f=%5Cfrac%7B84%7D%7B2%7D%20%3D%2042)
Since 42 is an even number we can still divide it by 2
So ![\frac{42}{2} = 21](https://tex.z-dn.net/?f=%5Cfrac%7B42%7D%7B2%7D%20%3D%2021)
Now we can divide 21 by the 2nd smallest prime number which is 3
So ![\frac{21}{3} = 7](https://tex.z-dn.net/?f=%5Cfrac%7B21%7D%7B3%7D%20%3D%207)
So the prime factors of 84 would be
or ![2^2*3*7](https://tex.z-dn.net/?f=2%5E2%2A3%2A7)
An expression is formed of numbers, variables, and mathematical operations. The expression that is equivalent to 35m²-63 is 7(5m²-9).
<h3>What is an Expression?</h3>
In mathematics, an expression is defined as a set of numbers, variables, and mathematical operations formed according to rules dependent on the context.
Given the expression 35m²-63, which can be written as,
![35m^2-63\\](https://tex.z-dn.net/?f=35m%5E2-63%5C%5C)
Taking 7 as common from both the terms,
![= 7(5m^2-9)\\](https://tex.z-dn.net/?f=%3D%207%285m%5E2-9%29%5C%5C)
Hence, the expression that is equivalent to 35m²-63 is 7(5m²-9).
Learn more about Expression:
brainly.com/question/13947055
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