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3 years ago

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Question 3 (20points) Solve the quadratic equation using the quadratic -x2+8x=7

1 answer:

Angelina_Jolie [31]3 years ago

3 0

Answer:

x = 7 or x = 1

Step-by-step explanation:

For this equation: a=-1, b=8, c=-7

−1x2+8x+−7=0

Step 1: Use quadratic formula with a=-1, b=8, c=-7.

x= ( −b±√b2−4ac )/2a

x= (−(8)±√(8)2−4(−1)(−7))/ (2(−1) )

x= (−8±√36 )/-2

x=1 or x=7

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Free_Kalibri [48]

Answer:

Step-by-step explanation:

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4 0

3 years ago

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lots of toys were in the swimming pool. the pool had 15 hoops in it. what is the value of each line in the graph?

Volgvan

Each line indicates the amount of a certain object.

We already know that the value of the green line is 15, all that is left to do is find the rest . . .

<u>Values</u>

Red Line: 20

Orange Line: 60

Green Line: 15

turquoise Line: 45

Blue Line: 65

Your welcome :3

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3 years ago

Plz help me 22 points..) Todd went out for lunch and ordered the taco dinner for $7.95 and a soda for $1.50 the total cost inclu

White raven [17]

Hi!

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3 years ago

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Hitman42 [59]

Answer:

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Step-by-step explanation:

The first term of the sequence is

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To find the second term add $1\frac{1}{5}$ to the first term;

$a_2=5\frac{1}{2}+1\frac{1}{5}=6\frac{7}{10}$

To find the third term add $1\frac{1}{5}$ to the second term;

$a_3=6\frac{7}{10}+1\frac{1}{5}=7\frac{9}{10}$

To find the fourth term add $1\frac{1}{5}$ to the third term;

$a_4=7\frac{9}{10}+1\frac{1}{5}=9\frac{1}{10}$

The first four terms are

$5\frac{1}{2},6\frac{7}{10},7\frac{9}{10},9\frac{1}{10}$

7 0

3 years ago

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galina1969 [7]

Answer: 12:28

Step-by-step explanation:

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3 years ago

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