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2 years ago

Evaluate the expression when a= 4, b= -6, c= -12

Mathematics

2 answers:

LekaFEV [45]2 years ago

5 0

it would be a(x)+b=c so 4(x) + -6=-12 so then it will be x=24

PolarNik [594]2 years ago

3 0

Answer:

what expression do u want to be evaluated?

Step-by-step explanation:

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A cylinder has a volume of 90pi and a radius of 3. what is the height?

kykrilka [37]

Step-by-step explanation:

volume of cylinder=90π
πr²h=90π
3²h=90
9h=90
h=90/9
h=10

hope it helps.

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2 years ago

If 4 men in 5 days eat 7 pounds of bread how much will be sufficient for 16 men in 15 days ?

Makovka662 [10]

I would say 28 pounds

4 0

3 years ago

Evaluate: [(21 + 6) − 32] ÷ 9.2 A) 4. B) 4.6. C) 1. D) 52.

Dima020 [189]

[(21 + 6) - 32] : 9.2 = (27 - 32) : 9.2 = -5 : 9.2 = -46

5 0

3 years ago

Solve each equation. Record your work and check your solution. a. 5(x-2)+(-9)= -7(1-x)

Daniel [21]

The solution for equation is x = -6

Solution:

Given equation is:

$5(x-2) + (-9) = -7(1-x)$

We have to solve the equation

According to Bodmas rule, if an expression contains brackets ((), {}, []) we have to first solve or simplify the bracket followed by of (powers and roots etc.), then division, multiplication, addition and subtraction from left to right

Therefore, solve for brackets in given equation

$5(x-2) + (-9) = -7(1-x)\\\\5x - 10 -9 = -7 + 7x$

Solve for terms in left hand side of equation

$5x - 19 = -7+7x$

Move the variables to one side and constants to other side

$7x -5x = -19+7\\\\2x = -12\\\\Divide\ both\ sides\ by\ 2\\\\x = -6$

Thus the solution for equation is x = -6

8 0

3 years ago

Find the area of the

Alex73 [517]

162 m^2

you can make a triangle in the corner with legs length s/2 and the angles are 45 degrees. in a 45 45 90 triangle, the legs are h/sqrt(2) where h is the hypotenuse. this means that s/2=9/2 sqrt(2), s=9 sqrt(2)

and s^2=162

5 0

3 years ago