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makvit [3.9K]
3 years ago
6

If a ball is thrown in the air with a velocity 48 ft/s, its height in feet t seconds later is given by y = 48t − 16t2. Find the

average velocity for the time period beginning when t = 2 and lasting. A. 0.5 second B. 0.1 second C. 0.05 second D. 0.01 second.
Mathematics
1 answer:
Gekata [30.6K]3 years ago
7 0
Im just typing so i can talk to my friend
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I ONLY HAVE A LITTLE TIME ANS NEED HELP!!!!! can someone explain this to me
denpristay [2]

Answer:

x = 92

Step-by-step explanation:

\frac{x}{46} =\frac{78}{39}

I did big side over small side, proportions.

Cross Multiply.

39x = 3,588

divide by 39x

x = 92

4 0
3 years ago
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49a4 + 87a2b2 + 64b4 TRINOMIO CUADRADO PERFECTO POR ADICION Y SUSTRACCION por favor ayud
KatRina [158]

Answer:

(7a^2 + 8b^2 + 5ab) (7a^2 + 8b^2 - 5ab)

Step-by-step explanation:

Dado que ambos términos son cuadrados perfectos, puede factorizar utilizando la fórmula de la diferencia de cuadrados, a^2 - b^ 2 = (a + b) (a - b), donde a = 7a^2 + 8b^2 y b = 5ab.

English: Since both terms are perfect squares you can factor using the difference of squares formula, a^2 - b^2 = (a + b)(a - b), where a = 7a^2 + 8b^2 and b = 5ab.

6 0
3 years ago
The number of miles Melody rides her bicycle, m, varies directly with the amount of time spent riding the bike, t. When Melody b
natta225 [31]
It is A.

"When Melody bikes for 1.5 h, she travels 10.5 mi.", therefore her speed is 10.5/1.5 = 7 mi/hr. So the right equation is <span>m = 7t.</span>
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3 years ago
If 6 lemons cost 90p what is the price of 1 lemon and four lemons
alina1380 [7]
75p is the correct answer because 1 lemon is 15p
8 0
3 years ago
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The area of a trapezium is 360 cm² and its height is 18 cm. If one of the parallel sides is longer than the other by 6 cm, then
Leokris [45]

Answer:

The two parallel sides a and b are 17 cm and 23 cm respectively

Step-by-step explanation:

Area of a trapezium = {(a+b)/2} h

Where

h = height = 18 cm

a = parallel side 1 = x

b = parallel side 2 = x + 6

Area of a trapezium = {(a+b)/2} h

360 = {(x + x + 6) / 2} 18

360 = { (2x + 6) / 2} 18

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360 = 18x + 54

Subtract 54 from both sides

360 - 54 = 18x

306 = 18x

Divide both sides by 18

x = 306 / 18

= 17

x = 17 cm

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x = 17 cm

b = parallel side 2 = x + 6

x + 6

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3 years ago
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