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2 years ago

Solve x2 + 8x = 33 by completing the square. Which is the solution set of the equation?

Mathematics

2 answers:

MAVERICK [17]2 years ago

8 0

Answer:

x= 33/10

Step-by-step explanation:

andrezito [222]2 years ago

6 0

Answer:

{-11,3}

Step-by-step explanation:

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a square painting has an area of 81x^2-90x-25. A second square painting has an area of 25x^2+30x+9. What is an expression that r

galina1969 [7]

Answer:

The answer in the procedure

Step-by-step explanation:

Let

A1 ------> the area of the first square painting

A2 ----> the area of the second square painting

D -----> the difference of the areas

we have

$A1=81x^{2}-90x-25$

$A2=25x^{2}+30x+9$

case 1) The area of the second square painting is greater than the area of the first square painting

The difference of the area of the paintings is equal to subtract the area of the first square painting from the area of the second square painting

D=A2-A1

$D=(25x^{2}+30x+9)-(81x^{2}-90x-25)$

$D=(-56x^{2}+120x+34)$

case 2) The area of the first square painting is greater than the area of the second square painting

The difference of the area of the paintings is equal to subtract the area of the second square painting from the area of the first square painting

D=A1-A2

$D=(81x^{2}-90x-25)-(25x^{2}+30x+9)$

$D=(56x^{2}-120x-34)$

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3 years ago

carly tutors stufents in math on the weekends and offers both thirty minute and sixtyminute sessions she earns $15for each thirt

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Answer:

X=7

Step-by-step explanation:

7*15=105 7-2=5 5*25=125 125+105=230

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The answer is B 1 =52 2=66

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