2 years ago

Solve the quadratic equation: x^2+ 2x + 7 = 21

1 answer:

Crank2 years ago

3 0

Answer:

x1 = -4.872983346

x2 = 2.872983346

Step-by-step explanation:

Given:

x^2+2x+7=21

Subtract 21 on both sides to get the right side equal to 0:

x^2+2x-14=0

Use the quadratic formula:

x1 = -4.872983346

x2 = 2.872983346

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scZoUnD [109]

You need to simplify it first.
$-3=-4(x-5)$
Use distribution
$-3=-4x+20$
y=mx+b
m=slope
your slope is -4 :)

5 0

3 years ago

boyakko [2]

(1,-2) im pretty sure is the answer

8 0

2 years ago

Oksanka [162]

Answer:

82 in^3

Step-by-step explanation:

3 x 2 x 7 + 2 x 2 x 10 = 82 in^3

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1 year ago

olganol [36]

Answer:

Step-by-step explanation:

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3 years ago

Alex Ar [27]

3/4 = 3/4*1

3/4 = 3/4 * 3/3 = 9/12

Box is 9/12 full after heba ate 1/12 of a box of cereal

Initial fraction will be 9/12+1/12

=10/12= 5/6

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3 years ago