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Schach [20]
1 year ago
11

Increase £80 by 15%​

Mathematics
1 answer:
Juliette [100K]1 year ago
3 0
The answer to your question is 92
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A circle in the xyxyx, y‑plane has the equation (x+92)^2+(y+54)^2=73(x+92) ​2 ​​ +(y+54) ​2 ​​ =73left parenthesis
dedylja [7]

34(3-2)9x-2 = 14 would be the correct way to solve the problem!

3 0
3 years ago
Suppose a simple random sample of size nequals45 is obtained from a population with muequals64 and sigmaequals14. ​(a) What must
jeka94

Answer:

Step-by-step explanation:

Given that sample size = n=45

mu = 64 and sigma =14

a) Sample mean will follow a normal distribution irrespective of the original distributions provided

i) samples are randomly drawn

ii) samples represent the population

iii) Sample size is sufficiently large

b) Here we have sample std dev= \frac{\sigma}{\sqrt{n} } \\=\frac{14}{\sqrt{45} } \\=2.09

P(X bar>68.1) = P(Z>\frac{68.1-64}{2.09} \\=P(Z>1.96)\\=0.25

c) P(X bar>66.3) = P(Z>\frac{66.3-64}{2.09} \\=P(Z>1.10)\\=0.136

7 0
2 years ago
Please help me!!!! :) help much needed
Anastaziya [24]
If you had a grid handy, that would help my explanation a lot. First mark 0,0 on your grid. Then draw a line where x = -2 (this should just be a vertical line that intersects (-2,0)). Notice how 0,0 is 2 units away from that line? In order to show a reflection, add 2 units on the other side of the x=-2 line. Mark that dot. Make sure the y value is the same. The x value should be -4.

FIRST REFLECTION: (-4,0)

Onto the second reflection! This is over the y-axis, but since the first reflection is already on the y-axis it wouldn't change.

Final answer: (-4,0)
7 0
3 years ago
Let u = x ^ 2 + 3 . Which equation is equivalent to (x ^ 2 + 3) ^ 2 + 21 = 10x ^ 2 + 30 in terms of u?
Serggg [28]

Answer:i think that it is B

u^2 - 10u + 51=0

Step-by-step explanation:

3 0
3 years ago
What can name part of a whole or a group
kvasek [131]
The answer to this problem will be A fraction 
6 0
3 years ago
Read 2 more answers
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