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motikmotik
3 years ago
10

If a=-4h^2-h+5 and b=8h-3h+12 find a-b

Mathematics
1 answer:
Flauer [41]3 years ago
4 0

Answer:

4h^2-6h-7

Step-by-step explanation:

(4h^{2} -h+5) - (8h-3h+12)\\4h^{2} -h+5 - 8h+3h-12\\4h^{2}-9h+3h-7\\4h^{2}-6h-7\\

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Help please thank you
LenaWriter [7]

Answer:

B)60m^2

Step-by-step explanation:

The area of the rectangle is 40m^2 and the area of the triangle is 20m^2. So 40+20 is 60.

3 0
3 years ago
Please answer both ASAP (middle school) (probability)
lana66690 [7]

Answer:

the first one is 18/32 and the second one is 125 games or 120

Step-by-step explanation:

for the first add all the numbers to get your denominator then add the probability of green aND YELLOW.

for the second you just divide 200 by eight to get 25 then times 25 by 5 to get your anwser

hope this helped :)

7 0
3 years ago
Hellllllllllllllllllllllllllllllllllllllllpppppppppppppppppppp
Cerrena [4.2K]

Answer:

A) 52

Step-by-step explanation:

Each answer, when you divide, all equal to 52

6 0
3 years ago
Read 2 more answers
Eight times a number plus five another number is -13. The sum of the two numbers is 1. What are the numbers?
Pani-rosa [81]
Eight *(a number) plus 5*(another number) is -13.

translates to:

8(x) + 5(y) = -13

The sum of (the number) and (the other number) is 1.

translates to:

(x) + (y) = 1


We have a system of two equations involving two unknowns: x and y.

\rm 8x+5y=-13\\
~~x+~~y=~~~~1

We can easily solve the system using Substitution or Elimination. Let's use Elimination this time.

We'll multiply the second equation by -8 so that the x's match up.

\rm ~~~8x+5y=-13\\ -8x-8y=-8

When we add the equations together, the x's will fall out of the equation, summing to zero. The 5y and -8y will sum to -3y and the right hand side will sum to -21.

\rm -3y=-21

Divide by -3,

\rm y=7

Plug back into one of your original equations to find the value of x,

\rm x+y=1\\
x+7=1

Subtract 7,

\rm x=-6
8 0
3 years ago
Can someone help me figure out what 40% of 65 is?​
Akimi4 [234]

Answer:

26

Step-by-step explanation:

Convert 40% to a decimal

40% = 0.4

Multiply 0.4 with 65

0.4 • 65 = 26

40% of 65 is 26

7 0
3 years ago
Read 2 more answers
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