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antoniya [11.8K]
3 years ago
12

75% of 56 Pls help me

Mathematics
1 answer:
Andrew [12]3 years ago
5 0

Answer:

42

Step-by-step explanation:

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An arrow is shot vertically upward from a platform 16ft high at a rate of 190ft/sec. When will the arrow hit the ground? Use the
Contact [7]
H(t) = -16t2 + 186t + 43

at the ground h = 0

hence; -16t2 + 186t + 43 = 0

solving this quadratic equation using the quadratic formula ; a = -16, b = 186, c = 43 ; x = (-b +-(b2 - 4ac)1/2)/2a

gives t = 11.8 seconds to the nearest tenth (note that the negative root has no practical significance)
5 0
3 years ago
Read 2 more answers
Determine the output, f(x), if the input to the function box below is 8.<br><br> f(x)=3x-1
Harman [31]

Answer:

The output is 23

Step-by-step explanation:

we know that

f(x) ----> is the output

x ----> is the input

we have that

f(x)=3x-1

For x=8 (input)

Find the value of f(x) (output)

f(8)=3(8)-1=23

The output is 23

7 0
3 years ago
Graph the line that contains the point (-5,-3) and had a slope of -2
Ipatiy [6.2K]

For this case we have that by definition, the equation of a line in the slope-intersection form is given by:

y = mx + b

Where:

m: Is the slope

b: Is the cut-off point with the y axis

According to the data of the statement we have to:

m = -2

Then, the equation is of the form:

y = -2x + b

We substitute the point(x, y): (- 5, -3)and find "b":

-3 = -2 (-5) + b\\-3 = 10 + b\\-3-10 = b\\b = -13

Finally, the equation is:

y = -2x-13

To graph we place the points (-5, -3)and(0, -13) on the coordinate axis and join the points by a line.

ANswer:

y = -2x-13

The graphic is attached.

4 0
3 years ago
What is the value of 2 cubed plus 5 squared
IceJOKER [234]

Answer:

33 is the answer

7 0
3 years ago
Find the area of a square garden that is 17 yards on a side
gizmo_the_mogwai [7]
The formula for area is base*height. a square is the same length on each side, so you would do 17*17= your answer

hope that helps!
4 0
4 years ago
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