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DochEvi [55]
3 years ago
10

A ball is thrown vertically upward with an initial velocity of 64 feet per second. The distance s​ (in feet) of the ball from th

e ground after t seconds is s=64t-16t^2
(a) At what time t will the ball strike the​ ground?
​(b) For what time t is the ball more than 4feet above the​ ground?
Mathematics
1 answer:
MissTica3 years ago
4 0
A hggghvhv jug mmvmm
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50 points! The campaign manager for one of the five candidates running for office in a city wants to conduct a survey to see how
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B

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He chose the names on the voter registration list radomly

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2 years ago
(-2,0) And (a,3) <br> Slope 3/8
UkoKoshka [18]

Answer:

a= 6

Step-by-step explanation:

slope = (y2 - y1)/(x2 - x1)

3/8 = (3 - 0)/(a - (-2))

cross multiplying,

3(a + 2) = 3(8)

3a + 6 = 24

3a = 18

a = 18/3

a = 6

3 0
3 years ago
At the rate shown in the table, how many weeks did it take to sell 700 books? [Type your answer as a number.]
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3 0
2 years ago
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During math class, Erik draws a circle with a compass. The circle has a radius of 3 inches. What is the circle's diameter?
sleet_krkn [62]

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Can some one help me with the questions?
Katen [24]
Notice that x+4 is one of the denominators, and that x(x+4) is the LCD.
                      x
Thus, mult. ------- by x(x+4), obtaining  x^2.  
                    x+4
Next, mult. [ 1/x + 1/(x+4) by x(x+4), obtaining   x+4 + x = 2x+4 or 2(x+4)
                                                                x^2
Then the simplified fraction becomes  ----------
                                                              2(x+4)

Generally Brainly allows you to post only 1 or 2 questions at a time.  I will do #15 as a courtesy to you, but want you to try #16 yourself (or to post it separately).

-4, 2, 8, 14, ...  is an arithm. seq.  Every new term is equal to the previous term, plus 6:  -4+6 = 2; 2+6=8, and so on.  Thus:  first term is a = -4; common difference is d = 6

a(50) = a(1) + (50-1)(6), or   a(50) = -4 + (49)(6) = 290 (answer)


6 0
3 years ago
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