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AnnZ [28]
3 years ago
14

Amanda earned a score of 940 on a national achievement test that was normally distributed. The mean test score was 850 with a st

andard deviation of 100. What proportion of students had a higher score than Amanda? Use your z table
Mathematics
1 answer:
yawa3891 [41]3 years ago
3 0
The answer is 0.806 I believe. The whole process was far too much to type onto hear because I don't want you to be reading an essay if you're in a hurry.
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A regular hexagon has an apothem measuring 14 cm and an approximate perimeter of 96 cm.
Mariulka [41]

ANSWER

672cm²

EXPLANATION

The area of a regular hexagon is given by the formula,

Area =  \frac{1}{2} ap

where a=14cm is the apothem and p=96cm is the perimeter of the regular hexagon.

We substitute the values into the formula,

Area =  \frac{1}{2}  \times 14 \times 96 {cm}^{2}

Area =672 {cm}^{2}

Therefore the approximate area of the hexagon is 672cm²

8 0
3 years ago
Read 2 more answers
Use the fraction strips to compare 2/4 and 5/8. use the drop-down menus to explain your comparison.
tia_tia [17]

Answer:

2

5

\dfrac{4}{5}

Step-by-step explanation:

We are given 2 fractional numbers:

1.\ \dfrac{2}4\\2.\ \dfrac{5}8

We have to use fraction strips to compare to the fractional numbers.

Let we are Comparing \frac{2}{4} with the length of x number of \frac{1}4 sections.

i.e.

\dfrac{2}{4}  = x \times \dfrac{1}{4}\\\Rightarrow x = \dfrac{2 \times 4}{4}\\\Rightarrow x = 2

Let we are Comparing \frac{5}{8} with the length of y number of \frac{1}8 sections.

i.e.

\dfrac{5}{8}  = y \times \dfrac{1}{8}\\\Rightarrow y = \dfrac{5 \times 8}{8}\\\Rightarrow y = 5

Now, let us have a look at 3rd part of question:

The sections of 2/4 is _____ the length of 5/8. Therefore, 2/4 < 5/8

Let the answer be z.

So, the equation becomes:

\dfrac{2}{4} = z \times \dfrac{5}{8}\\\Rightarrow z = \dfrac{2 \times 8}{4 \times 5}\\\Rightarrow z = \dfrac{2 \times 2}{5}\\\Rightarrow z = \dfrac{4}{5}

So, the answers are:

2

5

\dfrac{4}{5}

5 0
3 years ago
6[ 5x (41-36) - (8+14)]
IgorLugansk [536]

Answer:

=18

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
a CD usally sells for 14.00 if the CD is 30% off and sales tax7% whats the total price of the price of the CD including tax
Ostrovityanka [42]
First you will get the sale price.

you need to convert the percentage to a decimal and to do that you move the decimal over twice:

30% = .30

then multiply the CD price by the decimal

$14.00 X .30 = $4.20

then you have the sales price but you need to find the tax price
to do that you move the decimal of the tax percentage over twice

7% = .07%

then multiply by the price after the sale included

.07 X $4.20 = $0.29

you have how much the tax would be
to get the total price you add the tax to the sales price

$0.29 + $4.20 = $4.42

the price you would be paying for this CD including tax is $4.42

3 0
2 years ago
Help what is the square root of 4
Bess [88]

Answer:i think 2

Step-by-step explanation: 2*2=4

8 0
3 years ago
Read 2 more answers
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