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Lera25 [3.4K]
3 years ago
9

If 7x+5=-2, find the value of 8x?

Mathematics
1 answer:
Mama L [17]3 years ago
5 0
7x + 5 = -2
7x = -2 - 5 = -7
7x + x = -7 + x
8x = -7 + x
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Dimas [21]
Answer: is C. 30,000
8 0
3 years ago
Read 2 more answers
Please help me if you know answer its okay but if able to could please explain step by step.
Masja [62]

Answer: The answer would be c


Step-by-step explanation:

Step 1: Solve for b

5a+b=7

b=-5a+7

your slope would be -5a

Step 2: Make it perpendicular

The Perpendicular is gonna be the opposite

So it would be b= 1/5+7

The slopes has to be different and you don't have to worry about the "+7"

Reply if you have any questions


8 0
3 years ago
Solve the inequality: (x+3)(x−4)<−12
melamori03 [73]

Answer:

0<x<1

Step-by-step explanation:

(x+3)(x−4)<−12

FOIL

x^2 -4x+3x -12 <-12

x^2 -x -12 <-12

Add 12 to each side

x^2 -x -12+12 <-12+12

x^2 -x <0

Factor out an x

x(x-1) <0

Using the zero product property

x(x-1) =0

x=0  x-1=0

x=0  x=1

Check the ranges

x<0

x(x-1) <0        

- * - >0

False

0<x<1

x(x-1) <0        

+ * - <0

True

x>1

x(x-1) <0        

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False

3 0
3 years ago
Find the value of x from the figure given alongside<br>​
Andru [333]

kung ako sayo gurl wag mo na hanapin yung value ni ex

4 0
3 years ago
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PLEASE HELP!!! The question is below the graph.​
IrinaVladis [17]

Answer:

Yes

Step-by-step explanation:

The line is good because it is representing the data accuratly because it is in the middle of all the data points and since all the point are near the line, it is accurate.

7 0
3 years ago
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