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fomenos
3 years ago
11

A varies directly as b. If A = 3 when b = 24, find b when A = 10

Mathematics
1 answer:
Lelechka [254]3 years ago
4 0
240................................ It had to be 20 characters so sorry for the large answer <span />
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Madeleine earned $36,000 last
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Owed 5920 in taxes

0.12*16000+0.2*20000=5920
4 0
2 years ago
To test μ for an x distribution that is mound-shaped using sample size n ≥ 30, how do you decide whether to use the normal or st
Luden [163]
Answer:
Use the normal distribution if the population standard deviation is known.
Use the student's t distribution when the population standard deviation is unknown.

Explanation:
A mound-shaped distribution refers to the normal distribution.
A good sample size for testing against the normal distribution should be
n >= 30.
The condition for the sample size is satisfied.
However, we are not given the population standard deviation, therefore it is assumed to be unknown.
Therefore the student's t distribution should be used. 
6 0
3 years ago
1. Rhode Island is the smallest state. It has an area of
Viktor [21]

Answer:

663.4

Step-by-step explanation:

1.55 x 10 = 15.5

4.28 x 10 = 42.8

42.8 x 15.5 = 663.4

hope i helped

5 0
2 years ago
15* Que Equations of lins - Part
Phantasy [73]

There is not a given equation nor ordered pair, so it is impossible to answer this question. I apologise.

4 0
3 years ago
Simplify to an expression of the form (a sin(θ)).<br> 2sin(/8)2cos(/8)
rjkz [21]

Answer:

Your expression equals 2 \sin(\frac{\pi}{4}) assuming the problem was to simplify 2\sin(\frac{\pi}{8}) 2\cos(\frac{\pi}{8}) to the form a\sin(\theta).

Step-by-step explanation:

2\sin(\frac{\pi}{8}) 2\cos(\frac{\pi}{8})

2(2)\sin(\frac{\pi}{8})\cos(\frac{\pi}{8})

Let's use the following identity: 2\sin(A)\cos(A)=\sin(2A)

2\sin(2 \cdot \frac{\pi}{8})

2 \sin(\frac{\pi}{4}) which is comparable to the form a\sin(\theta).

a=2

\theta=\frac{\pi}{4}

5 0
3 years ago
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