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Ksivusya [100]
3 years ago
15

A stone is launched off a building which is 95 feet high. Its height at time t is given by the function h(t) = 95 + 10t − 4t2 wh

ere time is measured in seconds and height is measured in feet. At what time does the stone reach its maximum height?
A) t = 1.25 seconds
B) t = 2.5 seconds
C) t = 5.0 seconds
D) t = 7.5 seconds
Mathematics
2 answers:
Ganezh [65]3 years ago
8 0

Answer:

t = 1.25 seconds

Step-by-step explanation:

usatestprep

tensa zangetsu [6.8K]3 years ago
4 0

Answer:

B

Step-by-step explanation:

B

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I need to find the least common denominator of x+2/x^2+2x-3 , x-7/x^2+5x+6
grin007 [14]

Answer:

(x + 3)(x - 1)(x + 2)  

Step-by-step explanation:

The fractions are:  

\dfrac{x + 2}{x^{2} + 2x - 3} \text{ and } \dfrac{x - 7}{x^{2} + 5x + 6}

Factor each denominator  

x^{2} + 2x - 3 = (x + 3)(x - 1)\\x^{2} + 5x + 6 = (x + 3)(x + 2)

We must find the least common multiple of the denominators.  We take the maximum power of each separate factor.

      Factors of first fraction = (x + 3) × (x - 1)

Factors of second fraction = (x + 3)             × (x + 2)

                                   LCM = (x + 3)(x - 1)(x + 2)

The lowest common denominator of the two fractions is (x + 3)(x - 1) (x + 2).

4 0
3 years ago
How do you simplify on number 1?
Dennis_Churaev [7]
Okay. On the part that's not the whole number, see how the top number is BIGGER than the bottom? That means that it's not simplified. In order to make it simplified, you have to take a whole out of the pat that's not a whole number. Since the denominator is 12, the whole is 12/12. So, subtract it from the 13/12.

13/12-12/12=1/12

Now, since you found a whole inside of the fraction you have to add 1 to the whole number.
5+1=6

So, the answer is 6 1/12.

Thanks for the points!
6 0
3 years ago
how do I solve 7v-(2v-16)=5(v+4) please explain if it is a one solution, no solution or infinite solution
Sergio039 [100]
Do the indicated mult. first:

7v - 2v + 16 = 5v + 20
     5v   +      = 5v  +20.  This is never true.  NO solution.
3 0
3 years ago
Does 514, 684, 855 make a right triangle
Naily [24]

Answer:

No, it does not.

Step-by-step explanation:

This does not make a right triangle because in order to have a right triangle you must have 2 of the same numbers.

<em><u>For example:</u></em>

900, 800, 900 makes a right triangle

900, 800, 700 does not.

Hope this helped :D

5 0
2 years ago
Help on this question please!!!
OLga [1]

Answer:

Hello! Here is your answer

Step-by-step explanation:

112=4(28)

a=4b

You can only have one variable so:

Combine b to a:

a-b=84

4b-b=84

Divide both sides by 3:

3b/3=84/3

b=28

But that is not it:

Sum of both cards:

a+b

a=112

b=28

112+28=140

          = 140

I hope I was of help.  If not please let me know! Thank you! Good luck!

4 0
3 years ago
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