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Nata [24]
3 years ago
15

Enter your answer in the box. what is the value of z? 53=−19z 5 7z

Mathematics
2 answers:
Ne4ueva [31]3 years ago
5 0
53 = -19z + 5 + 7z
53 = -12z + 5
12z = 5 - 53 = -48
z = -48/12 = -4
z = -4
Norma-Jean [14]3 years ago
3 0

The answer is -4. I hop is helps!

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Althea paid $5.00 each for two bracelets and later sold each for $15.00. She paid $8.00 each for three bracelets
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Answer:

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Step-by-step explanation:

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8 0
3 years ago
What is the vertex of the graph of y = x2 + 4x?<br> (–2, –12)<br> (–2, –8)<br> (–2, –6)<br> (–2, –4)
SCORPION-xisa [38]

Answer: The vertex of the parabola (quadratic function) is (-2,-4)

Fourth option: (-2,-4)


Solution:

y=x^2+4x

y=ax^2+bx+c; a=1, b=4, c=0

Vertex: V=(h,k)

h=-b/(2a)

h=-4/(2(1))

h=-4/2

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k=(-2)^2+4(-2)

k=4-8

k=-4

Vertex: V=(h,k)

Vertex: V=( -2, -4)



3 0
3 years ago
Read 2 more answers
10 + 7m = 17
alisha [4.7K]
Subtract 10 and divide by 7
5 0
3 years ago
Read 2 more answers
What is 3 ^9? how to solve?
Tanya [424]
3⁹ is the same as doing:

3 * 3 * 3 * 3 * 3 * 3 * 3 * 3 * 3

What I would do it is narrow it down piece by piece. 

3 * 3 * 3 = 27. Do that 3 times, now you are left with:

27 * 27 * 27

27 * 27 or 27² = 729.

That leaves you with:

729 * 27

You can multiply by hand or use a calculator to get your answer of 19683.

To check your answer, plug 3⁹ into a calculator. Your answer should match this. 
7 0
3 years ago
Round 2826 to the nearest hundred. PLEASE HELP ME ASAP!!!
kotykmax [81]
It is 30000 i think dang it

5 0
3 years ago
Read 2 more answers
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