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Oksanka [162]
3 years ago
15

I have some answers the these problems but I just wanna make sure there right.. PLEASE Help??

Mathematics
1 answer:
yanalaym [24]3 years ago
3 0
7x+12+63=180
8x+12=180
Subtract 12 from both sides
8x= 168
=c=21

10x-40=50
Add 40 to both sides
10x=90
X=9

4x+72+2x-12=180
6x +60 =180
Subtract 60 from both sides
6x=120
X=20
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3. Consider the functions f(x) = x2 + 10x – 5, g(x) = 8x + 1, and h(x) = 3x – 4. List the functions from least to greatest value
weeeeeb [17]
<u>x = 3</u>
f(x) = x²+ 10x - 5
f(3) = (3)² + 10(3) - 5
f(3) = 9 + 30 - 5
f(3) = 39 - 5
f(3) = 34

g(x) = 8x + 1
g(3) = 8(3) + 1
g(3) = 25

h(x) = 3x - 4
h(3) = 3(3) - 4
h(3) = 9 - 4
h(3) = 5

<u>x = 6
</u>f(x) = x² + 10x - 5
f(6) = (6)² + 10(6) - 5
f(6) = 36 + 60 - 5
f(6) = 96 - 5
f(6) = 91

g(x) = 8x + 1
g(6) = 8(6) + 1
g(6) = 48 + 1
g(6) = 49

h(x) = 3x - 4
h(6) = 3(6) - 4
h(6) = 18 - 4
h(6) = 14

I would explain to someone that you don't need to do any calculations to know the order of the functions when x is equal to 15 by knowing that f(x) is equal to 370, g(x) is equal to 121, and h(x) is equal to 41 to know that it is easy finding the function of x without calculating the answer.
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4 years ago
The student body of 10 students want to elect a president, vice president, secretary, and treasurer.
lilavasa [31]

Answer:

a

Step-by-step explanation:

5 0
3 years ago
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Max weighs 4 pounds. When he is an adult​ cat, he will weigh about 305​% as much as his current weight. Write 305​% as a fractio
swat32

Answer:

305% is equivalent (which means equal to) to 3.05, or 305/100, which can be simplified to 61/20.

Step-by-step explanation:

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Answer:

first one

Step-by-step explanation:

8 0
3 years ago
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A cylinder has a surface area of 234π meters with a radius of 9 m. What is the volume of the cylinder? Leave your answer as π
sasho [114]

Answer:

Step-by-step explanation:

surface area of cylinder=2\pirh

              or,234\pi=2*22/7*9*h

              or,234*22/7=396/7*h

              or,5148/7=396/7*h

               or,36036=2772h

                or,36036/2772=h

                   h=13

now,

     volume=\pir^2h

                  =22/7*(9)^2*13

                  =3309.4285

7 0
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