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Murrr4er [49]
3 years ago
8

A student answers 80% of the questions on the math exam correctly, if she answers 40 questions correctly. How many questions are

on the exam?
RESPOND QUICKLY!!!

Mathematics
1 answer:
mafiozo [28]3 years ago
6 0
Hope this helps! ask if you need clarification.

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Which of the sss-values satisfy the following inequality?<br> 7-\dfrac s2\gt 3
Marysya12 [62]

Answer:

A

Step-by-step explanation:

Substitute 6 into place and solving the answer gives you 4 which is indeed bigger than 3. All the other numbers will give you an answer of something lower than 3 which is not what we're looking for in this case.

6 0
3 years ago
Read 2 more answers
(03.01 LC)
Sedaia [141]
  • Perpendicular=P=4
  • Base=B=4

Hypotenuse be H

Apply Pythagorean theorem

\\ \tt\hookrightarrow H^2=P^2+B^2

\\ \tt\hookrightarrow H^2=4^2+4^2

\\ \tt\hookrightarrow H^2=32

\\ \tt\hookrightarrow H=\sqrt{32}

\\ \tt\hookrightarrow H=5.8units

8 0
2 years ago
In 2017 there were enough renewable energy sources to supply a total of 9309 megawatts of electricity in a country. This graph s
STatiana [176]

Approximately 1700 megawatts of electricity could be supplied by Hydropower in 2017. Option B is correct.

Given that,
In 2017 there were enough renewable energy sources to supply a total of 9309 megawatts of electricity in a country. The graph shows the proportions that the different renewable energy sources could supply.

<h3>What are percentages?</h3>

the percentage is the ratio of the composition of matter to the overall composition of matter multiplied by 100.

Here, from the graph contribution of the hydropower is 18.2%.
So the electricity produced through hydropower is,
= 9309 * 18.2%
= 9309 * 18.2/100
= 1694.23
≈ 1700 megawatts

Thus, approximately 1700 megawatts of electricity could be supplied by Hydropower in 2017.

Learn more about percentages here:

brainly.com/question/13450942

#SPJ1

5 0
1 year ago
The diameter of a circle is given by the two points (5,-2) and (1,-2). What is the length of the diameter? What is the radius of
Serga [27]

Answer:

Diameter: 4

Radius: 2

Equation: ( x-3 ) + ( y + 2) = 4

6 0
3 years ago
A G.P is such that the 3rd term minus a first term is 48. The 4th term minus 2nd term 144. Find: (i) Common ratio ii) The first
EleoNora [17]

Answer:

Step-by-step explanation:

r is the common ratio.

Third term minus first term is 48.

a₃ - a₁ = 48

a₃ = a₁r²

a₁r² - a₁ = 48

a₁(r²-1) = 48

r²-1 = 48/a₁

Fourth term minus second term is 144.

a₄ - a₂ = 144

a₂ = a₁r

a₄ = a₁r³

a₁r³ - a₁r = 144

a₁r(r²-1) = 144

r²-1 = 144/(a₁r)

48/a₁ = 144/(a₁r)

r = 3

:::::

r²-1 = 48/a₁

a₁ = 6

:::::

a₆ = a₁r⁵ = 1458

8 0
3 years ago
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