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Cloud [144]
2 years ago
8

Help

Mathematics
1 answer:
Lubov Fominskaja [6]2 years ago
7 0

Answer:

x=5

Step-by-step explanation:

(8x-8)3/2=64

(24x-8)/2=64 -You are distributing the three

12x-4=64 -You divide the whole thing by two

12x=60 -You subtract the four from both sides

x=5 - You divided the twelve from both sides

Hope this helps!

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F(x)=-9x^2-7x+8, x=5
VashaNatasha [74]
F(x) = -9x^2 - 7x + 8
f(5) = -9(5^2) - 7(5) + 8
f(5) = -9(25) - 35 + 8
f(5) = - 225 - 35 + 8
f(50 = - 252 <==
4 0
3 years ago
How many subsets of exactly two elements does a set of five elements have?
Sedaia [141]
Do you have any options?


4 0
2 years ago
Solve system of linear equation by substitution -x+y=2; 3x-5y=-4
GarryVolchara [31]

Answer:

(-3,-1)

Step-by-step explanation:

-x+y=2

3x-5y=-4

in the top equation, we can get y by itself on one side of the equation:

-x+y=2

y=x+2

now, since we know that y=x+2, in the bottom equation we can substitute x+2 for y (substitution method) and solve:

3x-5y=-4

3x-5(x+2)=-4

3x-5x-10=-4

-2x-10=-4

-2x=6

x=-3

since we now know that x=-3, we can use it to find y by plugging in -3 for x in the top equation (you can do it in either equation, but doing it in the top equation is easier):

y=x+2

y=-3+2

y=-1

answer: (-3, -1)

7 0
3 years ago
Help help help helpppp ASAP!
Margarita [4]

Answer: 12n-10= -58

+10. +10 (add to both sides)

12n. = -48

÷12. ÷12 (isolate variable)

n. = -4

6 0
2 years ago
Read 2 more answers
-17 &lt; 3 - 5x<br><br><br> Idek anymore
zubka84 [21]

Step-by-step explanation:

-17 < 3 - 5x

-3       -3     step 1: subtract 3 from both sides

-20 < -5x

/-5      /-5   step 2: divide both sides by 5

4 < x

8 0
3 years ago
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