1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lana71 [14]
3 years ago
12

Find the total surface area.

Mathematics
1 answer:
irina1246 [14]3 years ago
6 0

Answer:

A≈402.12

Step-by-step explanation:

formula: A=2πrh+2πr^2

r = 4

h = 12

You might be interested in
n the figure below, A, B, and C represent the areas of the squares with side lengths a, b, and c, respectively. If B = 441 squar
atroni [7]

Answer:

hello 765

Step-by-step explanation:

3 0
4 years ago
Given a mortgage of 48,000 for 15 years with a rate if 11%, what are the total finance charges
earnstyle [38]
Brainly is good and educational for me.
4 0
3 years ago
Read 2 more answers
A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 436.0 gram setting. It
Vilka [71]

Answer:

We conclude that the machine is under filling the bags.

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 436.0 gram

Sample mean, \bar{x} = 429.0 grams

Sample size, n = 40

Alpha, α = 0.05

Population standard deviation, σ = 23.0 grams

First, we design the null and the alternate hypothesis

H_{0}: \mu = 436.0\text{ grams}\\H_A: \mu < 436.0\text{ grams}

We use one-tailed(left) z test to perform this hypothesis.

Formula:

z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }

Putting all the values, we have

z_{stat} = \displaystyle\frac{429 - 436}{\frac{23}{\sqrt{40}} } = -1.92

Now, z_{critical} \text{ at 0.05 level of significance } = -1.64

Since,  

z_{stat} < z_{critical}

We reject the null hypothesis and accept the alternate hypothesis. Thus, we conclude that the machine is under filling the bags.

8 0
3 years ago
Suppose the linear regression line y=2.1x+130 predicts sales based on the money spent on advertising. If x represents the dollar
slega [8]

Linear regression line y=2.1x+130 predicts sales based on the money spent on advertising.

Linear regression represents the relationship between two variables. the value of y depends on the value of x.

x represents the dollars spent in advertising and y represents the company sales in dollars.

We need to find out sales y when $150 spends on advertising.

Plug in 150 for x and find out y

y = 2.1 x + 130

y = 2.1 (150) + 130

y= 445

The company expects $445 in sales

5 0
3 years ago
The question is on the screenshot, thanks
NeTakaya

Answer

It is B because Q rotate with 180 degree so if it rotates again with 180 degree it ends on point B

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is 8% of 75. To lazy to do the work .
    15·1 answer
  • What is the solution? Round your answer to the nearest tenth <br> Help please step by step if so ?
    6·1 answer
  • What is this 4x + 6 = 10
    5·2 answers
  • Based on this data what is reasonable estimate of the probability that it is sunny tomorrow
    8·2 answers
  • If after a 7% tax and a 25% tip, the cost of a $115 dinner will be split among four people, how much does each person owe? Round
    13·1 answer
  • Find the roots of the following factored quadratic equation.<br> y= (2x-9) (7x-4)
    8·1 answer
  • The inverse of G(X) is a function.
    6·2 answers
  • What is the principal square root of 16?<br> O A. 2<br> O B. -4<br> O C. -2<br> O D. 4
    10·2 answers
  • Please help fast<br>it's for a quiz​
    7·1 answer
  • Help please
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!