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Alona [7]
3 years ago
14

SDAY: ve the equation: 5x – 2(x + 7) = -5

Mathematics
1 answer:
pogonyaev3 years ago
5 0

5x – 2(x + 7) = -5

mutiply the bracket by -2

(-2)(x)= -2x

(-2)(7)= -14

5x-2x-14=-5

3x-14= -5

move -14 to the other side, sign changes from -14 to +14

3x-14+14= -5+14

3x= 9

divide by 3 for both sides

3x/3= 9/3

x= 3

Answer: x= 3

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What is the quotient (6x4+15x3+10x2+10x+4) ÷ (3x2 + 2)?
Elza [17]
We want to evaluate
\frac{6x^{4}+15x^{3}+10x^{2}+10x+4}{3x^2+2}

Perform long division
                                  2x²  + 5x  + 2
           ----------------------------------------
3x²+2 | 6x⁴ + 15x³ + 10x² + 10x + 4
             6x⁴ +             4x²
           ----------------------------------------
                      15x³ + 6x² + 10x + 4
                      15x³           + 10x
            ---------------------------------------
                                6x²           + 4
                                6x²           + 4

Answer: 2x² + 5x + 2

3 0
3 years ago
Need help ASAP 19=10-5w+9w-7
REY [17]

Answer:

4w+3=19

4w=16

w=4


Step-by-step explanation:


6 0
3 years ago
Read 2 more answers
Please help out for a brainly <br> show work!!
Hatshy [7]

Answer:

Step-by-step explanation:

y=−5/2x−11 so slope is -5/2

y-intercept means when x is zero, then what is y? the answer is -11. So the y-intercept is (0 , 11)

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6 0
2 years ago
If f(1) = 2 and f(n) = –2f(n − 1) then find the value of f(5).
dybincka [34]

Answer: 2f

Explanation:

f(1)=8

f(2)= 2(8) = 16

f(3) = 2(16) = 32

f(4) = 2(32) = 64

f(5) = 2(64) =128

6 0
2 years ago
A line passes through the point (8, -9) and has a slope of 3/4 . Write an equation in point-slope form for this line.​
Finger [1]

Answer:

y+9=3/4(x-8)

Step-by-step explanation:

y-y1=m(x-x1)

y-(-9)=3/4(x-8)

y+9=3/4(x-8)

6 0
2 years ago
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