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schepotkina [342]
3 years ago
11

Please help me awarding brainliest!

Mathematics
2 answers:
Dmitry [639]3 years ago
8 0

Answer:

a

Step-by-step explanation:

because the rest aren't true

Gnom [1K]3 years ago
3 0

Answer:

A. because the rest are not true

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Is "A quotient of a number and seven" a expression or equation
Gekata [30.6K]
Expression. Hope this helps. Have a good day.
7 0
2 years ago
Is 2(x - 6) = -35 equivalent to 2x = -23
rusak2 [61]
Yes, if you just distribute 2(x-6). Then you would have 2x-12 = -35 then add 12 to the -35 and your answer would be 2x = -23 and leads to them being equivalent.
7 0
3 years ago
Consider the quadratic equation x2 − 6x = 16.
e-lub [12.9K]

Answer:

  1. C) (x − 3)2 = 25
  2. C) Factor out 4 from 4x2 + 40x.

Step-by-step explanation:

1. Adding the square of half the x-coefficient to both sides of the equation will "complete the square." That square is 9, so the result on the right is 16+9 = 25. Only selection C matches.

___

2. To complete the square, you want to be able to put the quadratic into the form a(x -h)^2 = -k. For the purpose, it is most convenient to first factor "a" from the given quadratic. Then you can determine "-h" to be half the x-coefficient inside the parentheses.

Here, that looks like ...

  4(x² +10x) = 80 . . . . . . . . . . step 1: factor out 4

  4(x² +10x +25) = 180 . . . . . add 25 inside parentheses and the same number (4·25) on the right side of the equation

  4(x +5)² = 180 . . . . . . . . . . . written as a square

8 0
3 years ago
How do you do this problem 7-r=8-r-r​
Oliga [24]

Answer:

r = 1

Step-by-step explanation:

Solve for  r

by simplifying both sides of the equation, then isolating the variable.

3 0
2 years ago
Read 2 more answers
Solve by square rooting : 3(X+2)^2:8​
dolphi86 [110]

The value of x is √8/3 - 2

Step by step explanation:

The given equation is

3(x+2)^2=8

To find x,

(x+2)²= 8/3

By taking square root on both sides

x+2= √8/3

x=√8/3 -2

x= -0.37

Thus the square root for the given value is -0.37

3 0
3 years ago
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