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svlad2 [7]
3 years ago
13

Please help on 12! And tell me how to do it please!

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
5 0
4.5x ft^2

Length times height is area. Area is always measure in squares, in this case: square feet.
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   John buys big ice-cream cylindrical Jar and sells it for $1 each ice-cream cone.
vitfil [10]
<span>John makes a profit. Volume of ice cream cylinder is pi, π (3.14) times radius (20cm/2) squared, time height (3 x 20cm) = 3.14 x 100 square cm x 60cm ≠18850 cubic cm. With 30 cubic cm per cone, a cylinder contains ice cream for about 628 cones, and sell for $628 dollars.</span>
7 0
3 years ago
Shamariah collects silk roses. She had 17 silk roses in a vase. Six friends each gave her 3 more roses. How many roses does sham
max2010maxim [7]

Answer: 4535

Step-by-step explanation:

she has 17 slik roses already, and 6 friends give her 3 silk roses each, so that's 6 times 3, which makes 18, and 17 plus 18 is 35, so she has 35 silk roses in all.

4 0
3 years ago
Select the correct answer.
vodomira [7]

Answer: -30

Step-by-step explanation:

-30 bc it has the same functions.

3 0
3 years ago
A car traveling at a constant speed travels 1000 ft in 12 seconds. how long in hours will it take to travel 175 miles?
artcher [175]

9514 1404 393

Answer:

  3.08 hours

Step-by-step explanation:

We assume you're interested in the time in hours.

  175\text{ mi}\times\dfrac{12\text{ s}}{1000\text{ ft}}\times\dfrac{5280\text{ ft}}{1\text{ mi}}\times\dfrac{1\text{ h}}{3600\text{ s}}=\dfrac{175\times12\times5280}{1000\times3600}\text{ h}=\boxed{3.08\text{ h}}

It will take 3.08 hours to travel 175 miles at that speed.

7 0
3 years ago
The Institute of Education Sciences measures the high school dropout rate as the percentage of 16- through 24-year-olds who are
USPshnik [31]

The appropriate hypothesis which is used to test the dropout rate are H_{0}:p > =0.081\\ and H_{1}: p < 0.081.

Given Drop out rate through 24 year old who are not enrolled is 8.1%, sample size=1000 and we have to find the hypothesis to test the drop out rate of the school.

The variable which needs to be studied is X=Number of individuals with age between 16 and 24 years old that are high school dropouts.

The parameter of interest is the proportion to high school drop outs is p.

Sample proportion=p^{1}=0.065

The hypothesis can be formed as under:

H_{0}:p > =0.081  (null hypothesis)

H_{1}:p < 0.081      ( alternate hypothesis)

Null hypothesis is a hypothesis which is tested for its validity and alternate hypothesis is hypothesis which is opposite of null hypothesis means if null hypothesis is rejected then the alternate hypothesis will be true.

Z_{H_{0} }=(p^{1}-p)/\sqrt{p*(1-p)/n}

=0.065-0.081/\sqrt{(0.081*0.0919)/1000}

=-1.85

Hence the appropriate hypothesis  are H_{0}:p > =0.081 and H_{1}:p < 0.081.

Learn more about hypothesis at brainly.com/question/11555274

#SPJ4

4 0
2 years ago
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