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Troyanec [42]
3 years ago
5

A? B? C? D? Making sure I got it right

Mathematics
1 answer:
tatyana61 [14]3 years ago
3 0
I believe that the answer would be B
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Suppose that in a normal half hour of practice, a tennis player expends 280 calories of energy.
sertanlavr [38]

Answer:

308 Calories

Step-by-step explanation:

So we start off with 280 as usual, but I will focus on the percent. The given percent is 110% "effort". What we would need to do here is, Firstly, change the percent into a decimal, and this is done by moving the decimal spot of 110%. What I mean is that 110.% and you move that little period over 2 times to the left and also remove the percent as for now because we will not need it. After that you would get 1.10. This is what we will multiply by. So if we did 280x1.10 it equals 308, and that is how I got 308

Hope this helps!

4 0
3 years ago
NASA cameras film a rocket launcher vertically from the launch pad, 3 miles away. When the angle between the camera and the grou
Nimfa-mama [501]
The height of the rocket is found in terms of the angle as
.. h/(3 mi) = tan(θ)
.. h = (3 mi)*tan(θ)

Then the rate of change of height (vertical velocity) is
.. h' = (3 mi)*sec(θ)^2*θ'
.. h' = (3 mi)*4*(1.5 rad/min)
.. h' = 18 mi/min

The rocket's velocity is 18 miles per minute at that moment.
8 0
3 years ago
The product of 2 and the second power of y in algebraic expression
inysia [295]
<span>Algebraic expression of product of 2 and the second power of y
=> Algebraic expression is a combination of integers (numbers), variables (a, b, c, x, y, ….), exponent (2 5 3 …) that is a rational number and algebraic operations like subtraction (-), addition (+), multiplication (x) and division (/).
=> Product – result of multiplication
=> second power of y = y<span>2
</span>=> 2 x y<span>2

</span>Thus, the algebraic expression of product of 2 and the second power of y is equals to 2 x y2

</span>



8 0
3 years ago
a 10-foot by 12-foot wall has two windows that measures 3 feet by 5 feet each if the windows are not to be painted what percent
vodomira [7]

Answer: is 75%

Step-by-step explanation:

Because you have to make sure you count each square then

5 0
3 years ago
Carl types 180 words in 2 minutes. At this rate how many words does Carl type in 5 minutes
Alex Ar [27]
180×5=900 words in 5mins
4 0
2 years ago
Read 2 more answers
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