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kipiarov [429]
2 years ago
12

Help please urgently

Mathematics
2 answers:
Mila [183]2 years ago
7 0

Answer:

B is the variable and A is the numerical coefficient

Maslowich2 years ago
3 0

Answer:A is 8 and it's numerical coefficient. While x2 is variable because value of x can vary in any equation.

Step-by-step explanation:

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1. The cylindrical container is four-fifths full of powder. Show ALL work for the following.
Marizza181 [45]

By definition, the volume of a cylinder is given by:

V = \pi r ^ 2h

Where,

r: cylinder radius

h: cylinder height

Therefore, the total capacity of the container is:

V = \pi (6) ^ 2 (18)

Rewriting we have:

V = 648 \pi

Then, the amount of total dust is given by:

V '= \frac{4}{5} V

Where,

V: volume of the container

Substituting values:

V '= \frac{4}{5} (648 \pi)

Rewriting:

V '= 518.4 \pi

Answer:

The total capacity of the container in terms of π is:

V = 648 \pi

The volume of the powder in terms of π is:

V '= 518.4 \pi

5 0
3 years ago
target sells a camera for $108. During a black friday sale, the canera is on sale for 30% off. What is the sale price of the cam
Verdich [7]

Answer:

$75.60

Step-by-step explanation:

6 0
3 years ago
Suppose Miss Roxanne Davenport is 25 years old right now and puts away $1,800 per quarter in an account that returns 6% interest
Lena [83]

We have been given that miss Roxanne is 25 years old and she puts 1800 dollars per quarter that returns 6% interest.

(a) We need to figure out how much will be in the account when she turns 65 years old. When she turns 65 years old, the number of years during which she made deposits would be 40. Since she made quarterly deposits. She made a total of 160 deposits. We can now figure out the final amount in the account using future value of annuity formula.

A=P\frac{(1+r)^{n}-1}{r}

We have the values P=1800, r=6/4% = 1.5% = 0.015 and n=160.

Therefore, the amount in the account would be:

A=1800\frac{(1+0.015)^{160}-1}{0.015}=1179415.39

Therefore, miss Roxanne will be 1179415.39 dollars in her account when she turns 65 years old.

(b) In this part we need to figure out the total amount she deposited.

The total amount she deposited would be 1800*160=\$288000.

(c) We can find the interest earned by subtracting her contribution from the answer of part (a).

Interest earned = 1179415.39-288000=\$891415.39

7 0
3 years ago
Read 2 more answers
A bank offers auto loans to qualified customers. The amount of the loans are normally distributed and have a known population st
vlabodo [156]

Answer: 1.467

Step-by-step explanation:

Formula of Margin of Error for (n<30):-

E=t_{\alpha/2}\dfrac{\sigma}{\sqrt{n}}

Given : Sample size : n= 22

Level of confidence = 0.90

Significance level : \alpha=1-0.90=0.10

By using the t-distribution table ,

Critical value : t_{n-1, \alpha/2}=t_{21,0.05}= 1.720743

Standard deviation: \sigma=4

Then, we have

E=(1.720743)\dfrac{4}{\sqrt{22}}=1.46745456106\approx1.467

Hence, the margin of error for the confidence interval for the population mean with a 90% confidence level =1.467

5 0
3 years ago
Read 2 more answers
In △BFD, m∠B = 34 ° and m∠FDC = 76°. What is m∠F and m∠FDB?
Paul [167]

Answer:

f=42

fdb=104

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
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