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Debora [2.8K]
3 years ago
13

Sergey is solving 5x2 + 20x – 7 = 0. Which steps could he use to solve the quadratic equation by completing the square? Select t

hree options. 5(x2 + 4x + 4) = –7 + 20 x + 2 = Plus or minus StartRoot StartFraction 27 Over 5 EndFraction EndRoot 5(x2 + 4x) = 7 5(x2 + 4x + 4) = 7 + 20 5(x2 + 4x) = –7
Mathematics
1 answer:
Svetach [21]3 years ago
8 0

Answer:

2, 3, and 4 of Ed

Step-by-step explanation:

Saw another answer of brainly .

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How far apart is 27 and -54
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They are 81 numbers apart
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3 years ago
If this trapezoid is moved through the
jeka94

Answer:

Step-by-step explanation:

A(-6,2) =>A'(-5, -1)

B(-5,4) =>B'( -4,1)

C(-2,4)=> C'(-1,1)

D( 1,2) => D'(2,-1)

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Find the midpoint of the segment with the following endpoints.<br> (10,7) and (5,4)
Anettt [7]

Answer: (7.5, 4.5)

Step-by-step explanation:

To find the midpoint, we can just find the average of the x values and the y values.

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7 0
3 years ago
Question 7
Deffense [45]

Q7.

The domain of the function y = sin x - 2 is x ≥ 2.

Answer: FALSE because is All Real Numbers

Q8.

The domain of the function y = cos x + 1 is All Real Numbers.

Answer: TRUE

Q9.

What's the domain of the function y = sin x?

Answer: All Real Numbers

Q10.

What is the range of the function y = sin x?

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8 0
3 years ago
If x represents an even integer, write expressions in terms of x that represent the next four consecutive even integers. If the
Rufina [12.5K]

Answer:

16.2, 18,2, 20.2, 22.2, 24.2

Step-by-step explanation:

Let

x

represent an even interger.

Remeber that even intergers have a distance of 2 from each other.

So next four consecutive intergers are

x + 2

x + 4

x + 6

and

x + 8

Part 2: Five consective intergers have a sum of 101, and qe must find the numbers so

x + x + 2 + x + 4 + x + 6 + x + 8 = 101

5x + 20 = 101

5x = 81

x= 16.2

3 0
2 years ago
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