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3 years ago

Graph y = 4/5 * x - 7 .

Mathematics

1 answer:

givi [52]3 years ago

5 0

Answer: x= 0,8.75 y=0,-7

Step-by-step explanation:

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3 years ago

What are the solutions to the equation x squared + x -30 =12

statuscvo [17]

Answer:

x = 6 x = -7

Step-by-step explanation:

Subtract 12 from each side:

x^2 + x - 30 - 12 = 12 - 12

Simplify:

x^2 + x - 42 = 0

Solve with quadratic formula using both +/- after the first -1:

x = $\frac{-1+\sqrt{1^2 -4*1(-42)} }{2*1}$

Simplify:

x = 6

x = -7

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3 years ago

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VMariaS [17]

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3 years ago

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3 years ago

Please help me do to night

Vesna [10]

Answer:

1.) -4x+30y 2.) distributive property 3.) -4x+30y, (-0.4(3)+3(2)), 10(-1,2)+10(6), -12+60, =48

Step-by-step explanation:

10(-0.4x+3y)= 10(-0.4x)+10(3y)= -4x+30y

10(-0.4(3)+3(2))

10(-0.4(3))+10(3(2))

10(-1.2)+10(6)

-12+60

= 48

7 0

3 years ago