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ikadub [295]
3 years ago
6

Determine the solutions to the following equation.

Mathematics
2 answers:
guajiro [1.7K]3 years ago
5 0
The answer would be A) x = -5 and 13.

Hope this helps :)
densk [106]3 years ago
5 0

Answer:

A- -5 and 13

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<img src="https://tex.z-dn.net/?f=%5Cfrac%7B6%7D%7B15%7D" id="TexFormula1" title="\frac{6}{15}" alt="\frac{6}{15}" align="absmid
aleksklad [387]
So what you do,is you add them together to get 13/10 but then you can also simplify it but you can keep the answer to 13/10
3 0
2 years ago
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An object is dropped from a bridge and allowed to freefall to the ground. The height of the object over time can be modeled usin
kkurt [141]

Answer:

<em>t = 3 seconds</em>

Step-by-step explanation:

We have the equation, as a function of time, that describes the height of the object that is dropped from the bridge.

The equation is:

h (t) = 144 - 16t ^ 2

Where t is the time in seconds and h is the height in feet.

To know how long it takes the object to fall to the ground we do h (t) = 0 and solve for t.

So:

0 = 144 - 16t ^ 2\\\\16t ^ 2 = 144\\\\t ^ 2 = \frac{144}{16}\\\\t ^ 2 = 9\\\\t_1 = 3\\t_2 = -3

We take the positive solution.

Therefore the object takes 3 seconds to reach the ground

4 0
3 years ago
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A student scored 66 points on his Psychology 101 midterm. If the average of his midterm and final must be between 78 and 90 incl
masha68 [24]

Answer:

range of scores on final exam student get  B is 90 to 100

Step-by-step explanation:

given data

Psychology 101 score = 66

average of his midterm = between 78 and 90

maximum = 100 points

to find out

range of scores on final exam student get  B

solution

we consider here lowest marks need in final = x

so average at two marks should be

equation is  

average marks = 0.5 × ( mid term marks + final marks )      .................1

put here value

78 = 0.5 ×  ( 66 + x )

x = 90

and

90 = 0.5 ×  ( 66 + x )

x = 114

so range 90 to 114

but maximum marks is 100 so

range of scores on final exam student get  B is 90 to 100

5 0
3 years ago
imagine that you are in an argument with a friend about the size of the slice of pizza you were both served. your friend says th
Helga [31]

Answer:

how long it is

Step-by-step explanation:

3 0
3 years ago
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What is the simplified algebraic expression for x-(x+7)
Natalija [7]
-x^2 + 7 is the simplified expression
3 0
2 years ago
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