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svetoff [14.1K]
3 years ago
11

What would a matrix look like to calculate the price with the 7% sales tax included?

Mathematics
1 answer:
Gala2k [10]3 years ago
7 0

Answer:

  see attached

Step-by-step explanation:

You want to multiply each individual value in the matrix by the same scalar value. That is represented as the product of a constant and the matrix.

___

The tax amount on price P is 0.07P. When that is added to P so you have the price + tax, you get P + .07P = 1.07P.

In this case, P is a matrix of prices.

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What is m A)30<br> B)60<br> C)90<br> D)50
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Answer:

A) 30°

Step-by-step explanation:

All triangles angles add always to 180°, so we have two already 75° + 75° = 150° thus the angle is 30°

5 0
2 years ago
Read 2 more answers
PLEASE HELP
mr Goodwill [35]

If 3 ft = 1yard

?        = 16 yards?

Thats \frac{16 yards * 3ft}{1yard}

The common values cancel each other out and you'll have 48 feet :)

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2 years ago
Simplify
Dmitriy789 [7]
1. 18
2. 44
3. 3
4. 21
5. 8
6 0
3 years ago
1. Find the determinant of A.<br> A.-2<br> B. 29<br> C.2.<br> D. 13
IrinaVladis [17]

Answer:

13

Step-by-step explanation:

To find the determinant you subtract the the leading diagonal from the non-leading diagonal.

(4x-2)-(-7x3)

-8  - -21

NB A negative beside a negative gives you a positive number.

-8+21

=13

7 0
3 years ago
a boat capsized and sank in the lake. based on an assumption of a mean weight of 143 lb, the boat was rated to carry 70 passenge
Alenkinab [10]

The final answer is the probability that the boat is overloaded because the mean weight of the 70 passengers is greater than 143lb is 1.0000.

A normal distribution is a continuous data distribution with a bell-shaped curve. The normally distributed random variable X has mean $\mu$ and standard deviation $\sigma$.

In addition, the standard normal distribution represents a normal curve with a mean of zero and a standard deviation of one.

The number of standard deviations an element deviates from the mean is indicated by a standardized Z-score.

What is the theorem of the central limit?

  • If the sample size from the population is sufficiently large and has a finite variance, the mean of all samples taken will be approximately the same as the population mean. And the variance would be the population variance divided by the sample size. In addition, the sampling distribution would be roughly normal.
  • The formula for sampling distribution of the sample mean is $\mu_{\bar{x}}=\mu$
  • The formula for standard deviation of the sample mean is,\sigma_{\bar{x}}=\frac{\sigma}{\sqrt{n}}
  • Here, $\sigma$ is the population standard deviation and n is the sample size.
  • The formula for standard z-score is,

z=\frac{\bar{x}-\mu_{x}}{\frac{\sigma}{\sqrt{n}}}

  • From the given information,Population mean, $\mu=171$,Population standard deviation, $\sigma=37.7$,Sample size, n=70
  • Compute the probability that the boat is overloaded because the mean weight of the 70 passengers is greater than $143l \mathrm{~b}$.

$$\begin{aligned}P(\bar{X} > 143) &=P\left(\frac{\bar{X}-\mu}{\sigma / \sqrt{n}} > \frac{143-171}{37.7 / \sqrt{70}}\right) \\&=P(Z > -6.21) \\&=1-P(Z < -6.21) \text { (Use the Excel function NORMSDIST(-6.21)) } \\&=1-0.0000 \\&=1.0000\end{aligned}$$

To learn more about standard deviation visit:

brainly.com/question/16555520?

#SP4

4 0
2 years ago
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