Distribute the negative throughout the set of parenthesis
5h-4-h+5
Ok, so your like terms are...
5h and -h
-4 and +5
If you rearrange the terms so that the like terms are next to each other, it is easier to combine them:
5h-h-4+5
5h-h=4h
-4+5=1
So, the problem is:
4h+1
Hope that helps :)
Answer:
the area of the triangle is 187.5cm^2
Step-by-step explanation:
1/2 × b × h
1/2 × 15 × 25
A = 187.5 cm^2
Answer:
31
Step by step:
You need to do it in reverse:
Devidng Becomes multiplying so its 3.8x10=38
Then same for this + = - do its 38-7=31
So answer is 31
Answer:
Option C.
Step-by-step explanation:
For a given set of N elements:
{x₁, x₂, ..., xₙ}
The mean is given by:
And the variance is given by:
Then for our set:
{70, 80 ,75, 75, 80}
We have 5 elements, then N = 5
The first thing we need to find is the mean.
Then the variance will be:
The correct option is C, 14.
Answer:
Step-by-step explanation:
5.
12x-7
12 x 4-7
48-7=41
answer-41
6.
(4 to the power of 2 =16)
16 divided by 8=2
answer-2
7.
5(1) + 3(7)-1(to the third power)
exponents first-1
multiplication
5x1=5 + 3x7=21
21+5=26
26-1
answer-25
8. 8(2nd power)divided by 2(4) +3(7)-1
8 to the 2nd power =16
2(4)=8
3(7)=21
16 divided by 8+21-1
8+21=29
29-1=28
answer 28
