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Andrei [34K]
2 years ago
15

Please help!!!!!!!!! (Solve The quadratic equation by completing the square) 2x^2+12x=66 fill in the value of a and b to complet

e the solution

Mathematics
2 answers:
nydimaria [60]2 years ago
6 0

Answer: in order

x=-3-\sqrt{42}

x=-3+\sqrt{42}

Step-by-step explanation:

100 % edmentum  

yKpoI14uk [10]2 years ago
5 0

I hope this it

Explanation:

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Jacob is working two summer jobs, making $10 per hour washing cars and making $8 per hour landscaping. In a given week, he can w
Burka [1]

Answer:

Step-by-step explanation:

Let x represent the number of hours that that he spent washing cars.

Let y represent the number of hours that that he spent landscaping.

In a week, he can work no more than 19 total hours. This means that

x + y ≤ 19- - - - - - - - - - - -1

Jacob is working two summer jobs, making $10 per hour washing cars and making $8 per hour landscaping. He must earn at least $170. This means that

10x + 8y ≥ 170 - - - - - - - - - -2

If Jacob worked 4 hours landscaping, it means that

x + 4 ≤ 19

x ≤ 19 - 4

x ≤ 15

Also,

10x + 8 × 4 ≥ 170

10x + 32 ≥ 170

10x ≥ 170 - 32

10x ≥ 138

10x ≥ 138/10

x ≥ 13.8

The minimum number of hours is 14

6 0
3 years ago
I may sound dumb... But what is the Prime Factorization of 68?? Please if I get this right I get 20 pts!!!
Illusion [34]
68
2 * 34
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7 0
3 years ago
Read 2 more answers
A rectangle is 7 feet long by 5 feet wide. If 3 feet are removed from the length of the rectangle, what would be the area, in sq
katrin [286]
The answer to your question would be 25 sq ft
6 0
3 years ago
A linear function has a slope of 3 and crosses the y- axis at 7. What is the equation of the line?
Anarel [89]

Answer:

y=3x+7

Step-by-step explanation:

cause bla bla bla and bing bong bang thats how

6 0
3 years ago
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Suppose the random variables X, Y, and Z have the following joint probability distribution. x y z f ( x , y , z ) 1 1 1 0.05 1 1
Airida [17]

Answer:

Determine the conditional probability distribution of X given that Y = 1 and Z = 2. Round your answers to two decimal places (e.g. 98.76).

answer:

Given that Y = 1 :  2/5

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Step-by-step explanation:

The conditional probability distribution of X     F x | yz^( x )

Given that Y = 1

F x | yz . ( x | yz )  = 2/5

Given that z = 2

= 3/5

attached below is the detailed solution

3 0
3 years ago
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