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lions [1.4K]
3 years ago
13

A ball is thrown straight up into the air. The height of the ball t seconds after it is thrown is modeled by the equation h(t) =

48t – 16t2. After how many seconds will the ball hit the ground?
A. 1

B. 1.5

C. 3

D. 3.5
Mathematics
1 answer:
Nookie1986 [14]3 years ago
6 0

Answer:

b

Step-by-step explanation:

gravity

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They are the opposite of each other.  Like if one function has the point (1,3) the inverse function with have the point (3,1)
4 0
3 years ago
Solve the logarithmic equation. Round the answers to the nearest hundredth. 6+In x=8
ahrayia [7]

Answer:

7.39 ( nearest hundredth )

Step-by-step explanation:

Using the rule of logarithms

log_{b} = n ⇔ x = b^{n}

Note that ln x represents log_{e} x

given 6 + ln x = 8 ( subtract 6 from both sides )

ln x = 2 ⇒ x = e^{2} ≈ 7.39


7 0
3 years ago
(3x + 5y = 7<br> { 4x - y = 5
dalvyx [7]

Answer:

Step-by-step explanation:

Solution by substitution method

3x+5y=7

and 4x-y=5

Suppose,

3x+5y=7→(1)

and 4x-y=5→(2)

Taking equation (2), we have

4x-y=5

⇒y=4x-5→(3)

Putting y=4x-5 in equation (1), we get

3x+5y=7

⇒3x+5(4x-5)=7

⇒3x+20x-25=7

⇒23x-25=7

⇒23x=7+25

⇒23x=32

⇒x=32/23

→(4)

Now, Putting x=32/23

in equation (3), we get

y=4x-5

⇒y=4(32/23)-5

⇒y=(128-115)/23

⇒y=13/23

∴y=13/23   and x=32/23

5 0
2 years ago
PLEASE HELP AHHH I-. I need help lol
Pie

Answer:

264

Step-by-step explanation:

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4 0
3 years ago
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