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Greeley [361]
3 years ago
13

Ethan throws a ball into the air from a cliff that is 152.4 m high with an initial velocity of 4 m/s. How long does it take for

the ball to hit the ground?
Mathematics
2 answers:
Setler79 [48]3 years ago
6 0
Time=distance/speed
Time=152.4/4
Time=38.1
natali 33 [55]3 years ago
3 0
In vertex form: the ball would touch the ground at (1/8, 154.9). If needed put it as a point on a graph
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Allison read 4/8 of an hour everyday of the week. How many hours does she read each week
Tema [17]

Answer:

3 1/2 hours

Step-by-step explanation:

Multiply 4/8 by 7 and you get 28/8 whihc reduces to 3 4/8 and 4/8 can be simplified to 1/2

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- 19.8=x over 1.8 what’s the answer
mezya [45]
X would be equal to -11 Im pretty darn sure
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Options for awnser is a,b,c,d
Aleks04 [339]

Answer:

Step-by-step explanation:

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Please help with 6 and 7
Ilya [14]

Answer:

6. The number is -5

7. The two numbers are 10 and 11

Step-by-step explanation:

Question six can be re-worded to create the following expression:

-2=\frac{4x+10}{5}

Solve for x to find the number:

-2=\frac{4x+10}{5}\\-10=4x+10\\-20=4x\\\frac{-20}{4} = x\\-5 = x

Question seven can be solved by first listing the constraints (assuming x is smaller than y):

  1. x and y are less than 20
  2. x + 1 = y
  3. 3x - 8 = 2y

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y = x+1

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Solve for x:

x+ 1 = \frac{3}{2}x - 4\\x + 5 = \frac{3}{2}x\\5 = \frac{3}{2}x - x\\5 = \frac{1}{2}x\\10 = x

Solve for y:

y = x + 1\\y = 10 + 1\\y= 11

4 0
2 years ago
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