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Furkat [3]
3 years ago
5

Help solve please! (image)​

Mathematics
2 answers:
adelina 88 [10]3 years ago
6 0

Answer:

2

Step-by-step explanation:

Here we're "evaluating," not solving, the given expression.

Substitute -2 for x and 6 for y:

20 - (-2)^2      20 - 4

--------------- = -------------- = 16/8 = 2

(6) - (-2)              8

The value of this expression, when x = -2 and y = 6, is 2.

Eduardwww [97]3 years ago
5 0

Answer:

4

Step-by-step explanation:

(20-2^{2} ) ÷ (6-2)

(20-4) ÷ 4

16 ÷ 4=4

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What two consecutive integers have a sum of 75?
marshall27 [118]

Answer:

37 and 38.

Step-by-step explanation:

Let the smaller integer be x.

Thus, the larger integer is (x+1) since it is consecutive.

x+(x+1)=75

2x+1=75

Subtract both sides by 1:

2x+1-1=75-1

2x=74

Divide both sides by 2:

\frac{2x}{2}=\frac{74}{2}

x=37

To find the other number, simply add 1 to 37 to get 38.

7 0
3 years ago
Read 2 more answers
( 0 0
ch4aika [34]
<h2>D. If subjects knew they were receiving an active treatment, researchers would not have known if any improvement was due to the new medication or to the expectation of <u>feeling </u>better. If the researchers knew which subjects received which treatments, they might have treated one group of subjects differently from the other group.</h2><h2 />

For your question... the answer would be D

7 0
3 years ago
What is the max or min and range of y=2x^2+20x-12
shtirl [24]

Answer: its x = 3

Step-by-step explanation:

The maximum or minimum of a quadratic function occurs at

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−

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−

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2

a

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. If

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f

(

−

b

2

a

)

.

f

min

x

=

a

x

2

+

b

x

+

c

occurs at

x

=

−

b

2

a

Find the value of

x

equal to

−

b

2

a

.

x

=

−

b

2

a

Substitute in the values of

a

and

b

.

x

=

−

−

12

2

(

2

)

Remove parentheses.

x

=

−

−

12

2

(

2

)

Simplify

−

−

12

2

(

2

)

.

Tap for more steps...

x

=

3

The maximum or minimum of a quadratic function occurs at

x

=

−

b

2

a

. If

a

is negative, the maximum value of the function is

f

(

−

b

2

a

)

. If

a

is positive, the minimum value of the function is

f

(

−

b

2

a

)

.

f

min

x

=

a

x

2

+

b

x

+

c

occurs at

x

=

−

b

2

a

Find the value of

x

equal to

−

b

2

a

.

x

=

−

b

2

a

Substitute in the values of

a

and

b

.

x

=

−

−

12

2

(

2

)

Remove parentheses.

x

=

−

−

12

2

(

2

)

Simplify

−

−

12

2

(

2

)

.

Tap for more steps...

x

=

3

4 0
3 years ago
Graph the function defined by f(x) = (x+21)
Inga [223]

Answer:

A

Step-by-step explanation:

Consider the parent function y=|x|. The graph of this function is represented as red graph in attached diagram.

Now consider the function y=|x+2|.

Remind main translations of the graph of the function y=f(x):

  • y=f(x-a) - translation a units to the right;
  • y=f(x+a) - translation a units to the left;
  • y=f(x)+a - translation a units up;
  • y=f(x)-a - translation a units down.

In your case, the graph of the function y=|x+2| is translated graph of the function y=|x| 2 units to the left (blue graph). So, correct answer is option A.

5 0
3 years ago
Which of the following inequalities is not true?
Lemur [1.5K]

Answer:

| - 9|  =  |9|

This is because modulus number will be always positive

Hope this is correct and helpful

HAVE A GOOD DAY!

4 0
3 years ago
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