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3 years ago

Help me please and no links

Mathematics

2 answers:

Burka [1]3 years ago

7 0

Answer:

x = -2

x=-12

Step-by-step explanation:

5 | x+7| +14 = 39

Subtract 14 from each side

5 | x+7| +14-14 = 39-14

5 | x+7| = 25

Divide each side by 5

5 | x+7| /5 = 25/5

| x+7| = 5

Make two equations, one positive and one negative

x+7 =5 x+7 = -5

Subtract 7 from each side

x+7-7 = 5-7 x+7-7 = -5-7

x = -2 x=-12

stellarik [79]3 years ago

5 0

C and D (x=-12 and x=-2)

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What is the product of 44(4–7)(4)?

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3 years ago

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Solve the following equaition: (n/3) - 7 = -17

Margarita [4]

Answer:

$n=-30$

Step-by-step explanation:

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3 years ago

Solve by Substitution<br> Show Steps<br> −2x + 3y + 5z = −21<br> −4z = 20<br> 6x − 3y = 0

Anarel [89]

−2x + 3y + 5z = −21

−4z = 20

6x − 3y = 0

do -4z=20 first

divide both sides by -4 to get z by itself

-4z/-4=20/-4

z=-5

Use z=-5 into −2x + 3y + 5z = −21

-2x+3y+5(-5)=-21

-2x+3y-25=-21

move -25 to the other side

sign changes from -25 to +25

-2x+3y-25+25=-21+25

-2x+3y=4

6x-3y=0

find x by eliminating y

Add the equations together

-2x+6x+3y+(-3y)=4+0

-2x+6x+3y-3y=4

4x=4

Divide by 4 for both sides

4x/4=4/4

x=1

Use x=1 into 6x − 3y = 0

6(1)-3y=0

6-3y=0

Move 6 to the other side

6-6-3y=0-6

-3y=-6

Divide both sides by -3

-3y/-3=-6/-3

y=2

Answer:

(1, 2, -5)

5 0

4 years ago

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Someone please help me with this

xenn [34]

It would be number 1

6 0

4 years ago

HELP PLEASE ASAP:

VashaNatasha [74]

The average rate of change, of the function, between the intervals, x = 2 to x = 6 is: 180.

<h3>What is the Average Rate of Change of a Function?</h3>

Average rate of change = $\frac{f(b) - f(a)}{b - a}$ .

Given the function, $f(x)= 3^x + 25$ ,

The average rate of change using the intervals of, x = 2 to x = 6 would be solved as shown below:

a = 2

b = 6

f(a) = $f(2)= 3^2 + 25$ = 34

f(b) = $f(6)= 3^6 + 25$ = 754

Average rate of change = $\frac{754 - 34}{6 - 2} = \frac{720}{4}$

Average rate of change = 180

Therefore, the average rate of change, of the function, between the intervals, x = 2 to x = 6 is: 180.

Learn more about average rate of change on:

brainly.com/question/8728504

5 0

2 years ago