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vitfil [10]
3 years ago
15

A ball is thrown frim a height of 140 feet with a downward velocity if 8 ft. How long until the ball hits the ground?

Mathematics
1 answer:
wariber [46]3 years ago
4 0
If you divide 8 from 140 you'll get 17.5 or 1120<span />
You might be interested in
the total land area for the United states is 3,537,438 square miles what is this value rounded to the nearest thousand square mi
Dahasolnce [82]
3,537,000 square miles
7 0
2 years ago
Find the solution set of 5/y+4=3/y-2
GaryK [48]

Answer:

y=-1/3

Step-by-step explanation:

first combine like terms:

5/y-3/y=-2-4

2/y=-6

now multiply y on both sides:

2=-6y

solve the equation

y=-1/3

4 0
3 years ago
Read 2 more answers
(-y+5•3)+7.2y-9)=6.2y+n
kramer
(-y+5x3)+(7.2y-9)=6.2y+n
(-y+15)+(7.2y-9)=6.2y+n
since you're adding the two parentheses, you don't need to have them there
-y+15+7.2y-9=6.2y+n
7.2y-y +15-9 =6.2y+n
6.2y + 6 =6.2y+n
6.2y - 6.2y -n = -6
-n=-6
n=6

3 0
2 years ago
How do you simplify 2i&lt;6u ?
marusya05 [52]
In simplifying inequalities, there are a few things that you have to remember. Here are some:

<span>Many simple inequalities can be solved by adding, subtracting, multiplying or dividing both sides until you are left with the variable on its own.
But these things will change direction of the inequality:<span>Don't multiply or divide by a variable (unless you know it is always positive or always negative)

We simplify as follows:
2i/2<6u/2
i<3u</span></span>
5 0
2 years ago
The equation for the pH of a substance is pH = –log[H+], where H+ is the concentration of hydrogen ions. What is the approximate
Korolek [52]
PH = -log[H+]
= -log(2*10^-9)
= -(log(2) +log(10^-9))
= -(0.3 -9)
= 8.7

The appropriate choice is
  C. 8.7
5 0
3 years ago
Read 2 more answers
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