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timama [110]
3 years ago
10

Which phrase best describes taxable income?

Mathematics
1 answer:
spayn [35]3 years ago
5 0

the answer will be A. all income and wages received from working

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What is the slope of the line through the points (8, -2) and (8, -8)?
gulaghasi [49]

Answer:

Step-by-step explanation:

(-8+2)/(8-8)= -6/0= undefined

8 0
3 years ago
If T is the midpoint of segment RS then, Segment RT is congruent to segment TS..<br> Help please!!!!
omeli [17]

Answer:

Definition of Midpoint

Step-by-step explanation:

Since T is the midpoint then it is equadistant from R to T and T to S

3 0
3 years ago
How to convert 90% into a decimal
Llana [10]

The first thing you  do is go two space forward  like start at the o and move two spaces  forward you put a decimal  at 9 like this 0.90 and that's  how  you  do  it

6 0
3 years ago
Read 2 more answers
The heights of a random sample of 50 college students showed a mean of 174.5 centimeters and a standard deviation of 6.9 centime
Minchanka [31]

Answer:

Step-by-step explanation:

Hello!

For me, the first step to any statistics exercise is to determine what is the variable of interest and it's distribution.

In this example the variable is:

X: height of a college student. (cm)

There is no information about the variable distribution. To estimate the population mean you need a variable with at least a normal distribution since the mean is a parameter of it.

The option you have is to apply the Central Limit Theorem.

The central limit theorem states that if you have a population with probability function f(X;μ,δ²) from which a random sample of size n is selected. Then the distribution of the sample mean tends to the normal distribution with mean μ and variance δ²/n when the sample size tends to infinity.

As a rule, a sample of size greater than or equal to 30 is considered sufficient to apply the theorem and use the approximation.

The sample size in this exercise is n=50 so we can apply the theorem and approximate the distribution of the sample mean to normal:

X[bar]~~N(μ;σ2/n)

Thanks to this approximation you can use an approximation of the standard normal to calculate the confidence interval:

98% CI

1 - α: 0.98

⇒α: 0.02

α/2: 0.01

Z_{1-\alpha /2}= Z_{1-0.01}= Z_{0.99} =2.334

X[bar] ± Z_{1-\alpha /2} * \frac{S}{\sqrt{n} }

174.5 ± 2.334* \frac{6.9}{\sqrt{50} }

[172.22; 176.78]

With a confidence level of 98%, you'd expect that the true average height of college students will be contained in the interval [172.22; 176.78].

I hope it helps!

4 0
3 years ago
The length of an edge of a cube is 2 inches. How many cubic inches are there in the volume of the cube ?
gizmo_the_mogwai [7]
A cube has equal edges, so 2*2*2 or 2^3 (2 cubed) v=8^3
4 0
3 years ago
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