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hammer [34]
2 years ago
14

Evaluate 5x 2+ 2(4x – 7) – 8x for x = 3.

Mathematics
1 answer:
Sauron [17]2 years ago
6 0

Answer:

10x-14

Step-by-step explanation:

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What is the area of a regular octagon with a apothem of 16 inches long and a side of 19 in Long round the answers to the nearest
azamat
To find the area of any regular (regular means all sides are = and all angles are =)  poylgon when you know the length of the apothem and the length of the side you can use the formula:
A = (1/2)ap where a = the length of the apothem and p = the perimeter of the polygon. You can also use n*s in place of p where n = the number of sides of the polygon and s = the length of the side.

A= (1/2)(16)(19*8) (An octagon has 8 sides.)
A = 1216 in^2
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What value of x would make lines l and m parallel
g100num [7]

Answer:wdym

Step-by-step explanation:

7 0
3 years ago
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2x1= how much answer ​
Vilka [71]
It’s two






Explanation:
2x1 = 2

5 0
3 years ago
What are the solutions to the equation x2 + bx+c=0?
nevsk [136]

Answer:

Find the complex solutions using the quadratic formula.

x

=

−

b

−

√

b

2

−

4

c

2

x

=

−

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+

√

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Step-by-step explanation:

8 0
3 years ago
Please help
tia_tia [17]

Answer:

The answer to your question is letter B.

Step-by-step explanation:

Data

Center = (-10, 6)

radius = 8

Process

1.- To find the answer to your question just substitute the values in the standard form of the circle.

Equation

                    (x - h)² + (y - k)² = r²

h = -10

k = 6

r = 8

Substitution

                   (x + 10)² + (y - 6)² = 8²

Simplification

                   (x + 10)² + (y - 6)² = 64

8 0
3 years ago
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