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kolezko [41]
3 years ago
13

tennis ball is hit through the air. The height h of the ball in feet after the distance d in feet the ball travels horizontally

is given by h=-0.03d^2+0.56d+3 How far horizontally from the tennis player does the ball land on the ground?
Mathematics
1 answer:
alexira [117]3 years ago
6 0

Answer:

23.0121 feet

Step-by-step explanation:

h = 0, solve for d

0=-0.03d^2+0.56d+3

d = -4.3455 d = 23.0121

d = 23.0121 because distance cannot be negative

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steposvetlana [31]
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The second pipe fills 1/4 of a pool in one hr.

(1/8+1/4)2= 3/4 done by the first two pipes in 2 hours.
Therefore the last pipe must do 1 1/4 of the filling in 2 hours, which is 5/8 per hour.

5/8x=1
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It takes the third pipe 1 hour and 36 minutes to fill it by itself.
7 0
3 years ago
Which one is the least?<br> 1/8, 1.125, or 2/5?<br> Then after which one is bigger?
finlep [7]

Answer:

1/8 is smaller than 2/5, and 2/5 is smaller than 1.125

Step-by-step explanation:

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3 0
2 years ago
Read 2 more answers
The value of x is a third of the value of 45-10x
Mnenie [13.5K]

Answer:

x = 45/13, also x = 3 6/13

Step-by-step explanation:

is = equal sign

of = multiply

<u>Equation:</u>

x = 1/3 (45-10x)

To do this, you could easily do communitive property of multiplication, but to make it more understandable I will use reversing.

1. Simplify. Multiply - Divide.

x=\frac{45-10x}{3}

2. Factor out common term 5.

x=\frac{5(9-2x)}{3}

3. Multiply both sides by 3.

3x=5(9-2x)

4. Expand.

3x=45-10x

5. Add <em>10x</em> to both sides.

3x+10x=45

Simplify. <em>3x + 10x = 13x.</em>

13x=45

Divide both sides by 13.

x= \frac{45}{13}

Mixed Number = x=3\frac{6}{13}.

You can also use distributive property. The formula for this problem is: (\frac{1}{3} * 45) - (1/3*10x).

4 0
2 years ago
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Mrac [35]
Using the given info, we can determine that
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simplify
8  \div  - a =  - 2
multiply both sides by -a
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4 = a
A = 4
5 0
2 years ago
Not every whole number is an integer true or false
lora16 [44]
Integers are like whole numbers, but they also include negative numbers so true
8 0
2 years ago
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