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Sati [7]
2 years ago
13

66 is what percent of 55?

Mathematics
1 answer:
Gemiola [76]2 years ago
4 0

Answer: 66 is 120% of 55




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A ball is thrown into the air with a velocity of 34 ft/s. It's height in feet after t seconds is given by y=34t-26(t)^2. Find th
kkurt [141]

Answer:

The average velocity of the ball at the given time interval is -122.3 ft/s

Step-by-step explanation:

Given;

velocity of the ball, v = 34 ft/s

height of the ball, y = 34t - 26t²

initial time, t₀ = 3 seconds

final time, t = 3 + 0.01 = 3.01 seconds

At t = 3 s

y(3) = 34(3) - 26(3)² = -132

The average velocity of the ball in ft/s is given as;

V_{avg} = \frac{y(3.01)-y(3)}{3.01 -3}\\\\V_{avg} = \frac{34(3.01)-26(3.01)^2-y(3)}{3.01 -3}\\\\V_{avg} = \frac{-133.223-y(3)}{0.01}\\\\V_{avg} = \frac{-133.223-(-132)}{0.01}\\\\V_{avg} =\frac{-1.223}{0.01}\\\\V_{avg} = -122.3 \ ft/s

Therefore, the average velocity of the ball at the given time interval is -122.3 ft/s

8 0
3 years ago
When resting, Tara’s heart beats 68 times a minute. Explain why this is an example of a unit rate?
Eduardwww [97]

There are two variables here, which are time (minutes) and the number of beats, and they both have a relationship (68 beats in one minute), therefore it is an example of a unit rate

4 0
2 years ago
Read 2 more answers
Please help the first two answers aren’t right.
Airida [17]
It has to have an average of 10 feet per minute for 5 minutes, which means in five minutes the total of feet would have to be 50.
So you would add all these numbers up and you would get 38.
50 - 38 = 12 so the answer is 12ft
4 0
2 years ago
The absolute value of this number is less than 1/2 but greater than 1/10
Anastasy [175]
Ok, so I assume this is an equation because there could be multiple exact answers

1/10 < |x| < 1/2
6 0
2 years ago
Mr. Berger assigned the following system of equations to be solved for homework. 2 x minus 3 y = negative 12. 4 x + y = negative
yulyashka [42]

Answer:

x=-3

Step-by-step explanation:

5 0
3 years ago
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