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marin [14]
3 years ago
11

For the diagram shown, x = 80 and y = 30. Determine the value of z. A) 20 B) 40 C) 50 D) 100

Mathematics
2 answers:
vladimir1956 [14]3 years ago
6 0

Answer:

c

Step-by-step explanation:

Lisa [10]3 years ago
4 0

Answer:D

Step-by-step explanation:

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Papyrus. it is the only thing to pick! :) also YEET TO YOU TO

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3 years ago
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A simple random sample of 100 batteries is selected from a process that produces batteries with a mean lifetime of 32 hours and
Brrunno [24]

Answer:

.b. It is one‐half as large as when n = 100.

Step-by-step explanation:

Given that a  simple random sample of 100 batteries is selected from a process that produces batteries with a mean lifetime of 32 hours and a standard deviation of 3 hours.

i.e. s = 0.3

we obtain se of sample by dividing std devitation by the square root of sample size

i.e. s= \frac{3}{\sqrt{n} }

when n =100 this = 0.3 and

when n =400 this equals 0.15

We find that when sample size is four times as large as original, std deviation becomes 1/2 of the original

Correction option is

.b. It is one‐half as large as when n = 100.

7 0
3 years ago
What’s the next three after? <br> 18,36,72,144,..
IgorC [24]

Answer: 288, 576, 1152

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Hope this helped!! :)

6 0
3 years ago
Read 2 more answers
<img src="https://tex.z-dn.net/?f=%5Csf%202x%2B7%2B8x%3D35" id="TexFormula1" title="\sf 2x+7+8x=35" alt="\sf 2x+7+8x=35" align="
Dafna11 [192]

Answer:

x=14/5

Step-by-step explanation:

Group like terms

2x+8x+7=35

Add similar elements: 2x+8x=10x

10x+7=35

Subtract 7 from both sides:

10x+7−7=35−7

Simplify

10x=28

Divide both sides by 10

10x/10 =28/10

Simplify:

x=14/5

7 0
3 years ago
What is the perimeter of the figure
jonny [76]
The perimeter of the shape is 30 add all the sides
3 0
3 years ago
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