Answer: -30b^2+76b+80
Explanation:
Multiply the second parenthesis by each term from the first parenthesis:
3b•2(-2•2+b+10)+4b•(-2b•2+b+10)+8(-2b•2+b+10)
Then distribute 3b•2 through the parenthesis
-24b^2+6b^2+60b+4b•(-2b•2+b+10)+8(-2b•2+b+10)
Then collect like terms
-30b^2+60b+40b-32b+8b+80
Collect like terms=
-30b+76b+80
Answer:
15
Step-by-step explanation:
answeram I righatjfj
Answer:
57.5 %
Step-by-step explanation:
First find out the number of workers that do not arrive by 8 am
200 -85 = 115
Take this number divided by the total
115/200 = .575
Change to percent form
57.5 %
Answer:
Answer is
sine = 0.769
cosine = 0.6389
Step-by-step explanation:
Given a right angle triangle
Where Height of triangle = 10
And Hypotenuse of triangle = 13
Then, we know Sin Ф = Height/ hypotenuse
or SinФ = 10/13
or Ф = arcsin (10/13)
or Ф = 50.285°
So , sin Ф = sin 50.285° = 0.769
Next we need to cosine.
i.e cos Ф = cos 50.285° = 0.6389
Hence we got, sine = 0.769
And cosine = 0.6389
2(5x+4)+3(2x-1)
Use the distributive property for both sets of parenthesis:
2(5x+4) = 2*5x + 2*4 = 10x+8
3(2x-1) = 3*2x - 3*1 = 6x-3
Now you have:
10x+8 + 6x-3
Now combine like terms:
10x + 6x = 16x
8-3 = 5
The final answer is 16x+5
