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leva [86]
3 years ago
15

Questions 6 and 7 and 9 and 10 please

Mathematics
1 answer:
Nadya [2.5K]3 years ago
7 0
6. 52x
7. 0.5(n+5)
9. 33b-12
10. 17c+2
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Y=-2<br><img src="https://tex.z-dn.net/?f=y%20%3D%20%20-%202%20%5C%5C%204x%20-%203y%20%3D%2018" id="TexFormula1" title="y = - 2
Morgarella [4.7K]
I think is
4x - 3 (-2) = 18
4x + 6 = 18
4x = 12
x = 3
5 0
3 years ago
Holly bought blank CD's and spent $34.57.What is that amount rounded to the nearest dollar?.
Tamiku [17]

Answer:

$35

Step-by-step explanation:

Rounding to the nearest dollar which would be 4 so in that case you would use the 5 in .57 and because 5 is a large number it would make the 4 into a five thus making it $35. Hope this helped :)

3 0
3 years ago
If z=2.5, x=102 and x=100, what is s?
Bad White [126]

I believe the problem ask for s which is the standard deviation. We must recall that the formula for z statistic is stated as:

z = (x – x over bar) / s

Where,

z = z statistic = 2.5

x = sample value or sample score = 102

x over bar = the sample mean or sample average  = 100

s = standard deviation = unknown

Rewriting the equation in terms of s:

s = (x – x over bar) / z

Substituting the given values into the equation:

s = (102 – 100) / 2.5

s = 0.8  

Therefore the standard deviation s is 0.8

7 0
3 years ago
What is the initial value of the function represented by this graph?
ohaa [14]

Answer:

its 6 I'm pretty sure about it

8 0
3 years ago
segment Y prime Z prime has endpoints located at Y'(0, 3) and Z'(−6, 3). segment YZ was dilated at a scale factor of 3 from the
liberstina [14]

Answer:

YZ is located at Y (0, 1) and Z (-2, 1) and is one-third the size of Y'Z'.

Step-by-step explanation:

Since Y'Z' was dilated from the origin at a scale factor of 3, you can divide its X and Y coordinates by 3 to find the coordinates of YZ.

6 0
3 years ago
Read 2 more answers
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