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matrenka [14]
3 years ago
11

Find the solution set for this equation. a^2 + 7a=0 Separate the two values with a comma.

Mathematics
2 answers:
Nesterboy [21]3 years ago
7 0

Answer:

a=(0,-7)

Step-by-step explanation:

a^2+7a=0

a^2+7a-7a=-7a

a^2=-7a

a=(0,-7)

olga2289 [7]3 years ago
4 0

Answer:

a = 0,-7

Step-by-step explanation:

a^2 + 7a=0

Factor out an a

a(a+7) =0

Using the zero product property

a=0   a+7 =0

a =0  a= -7

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6/8 divide by 8/12<br> A. 9/2<br><br><br> B. 8/9<br><br><br> C. 9/8<br><br><br> D. 9/32
Musya8 [376]

Answer:

C. 9/8

Step-by-step explanation:

\frac{6}{8}  \div  \frac{8}{12}

Use KCF which means Keep the first fraction, Change the second fraction by flipping it and change the division sign to a multiplication symbol:

\frac{6}{8}  \times  \frac{12}{8}

multiply the numerator together:

6 × 12 = 72

multiply the denominator together:

8 × 8 = 64

now the fraction is:

\frac{72}{64}

simplify further by dividing both numbers by 8:

72 ÷ 8 = 9

64 ÷ 8 = 8

so the fraction is 9/8

3 0
3 years ago
Terrell wrote that 5-4.2=8. Which statement about this answer is true?
Nuetrik [128]

Answer:

No.

Step-by-step explanation:

No. 5 - 4.2 = 0.8

7 0
3 years ago
Patty has just completed her second semester in college. She earned a grade of B in her 4​-hour topology ​course, a grade of D i
umka21 [38]

Answer: 1.4

Step-by-step explanation:

To calculate the grade point average you have to sum all the points of each course multiplying the hours and then diveded by the total number of hours she did.

She earned a grade B in her 4 hour topology course, so she has 3*4 points.

In her 11 hour gouvernment course, she earned a grade D, so she has 1*11 points. In the 2 hour biology course she earned a grade D, so she has 1*2 points and in her 3 hours studio art course she had also a grade D, so she has 1*3 points

She has done 3+2+11+4 hours of subjects=20.

The total average is (3*4+1*11+1*2+1*3)/20=28/20=1.4

8 0
3 years ago
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Answer:

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Step-by-step explanation:

This should be good :)

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3 years ago
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Over [174]

Answer:

15.25×3

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3 0
3 years ago
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