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Natalija [7]
3 years ago
8

Sean tossed a coin off a bridge into the stream below. The path of the coin can be represented by the equation h = -16t2 + 72t +

100. what is the height of the bridge
Mathematics
2 answers:
Lilit [14]3 years ago
8 0

Answer:

100

Step-by-step explanation:

:3

Fiesta28 [93]3 years ago
4 0

Answer:

100

Step-by-step explanation:

When t=0 (no time has passed), the coin is at height 100. This means the bridge must be 100 units high for this to be possible.

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A girl's feet are negative 4/5 yards from the surface of a pool. A boy's feet are negative 2/5 yards from the surface of the poo
sineoko [7]

Answer:

The boy's feet are closer to the surface of the pool because negative 4 over 5 < negative 2 over 5.

4 0
2 years ago
Solve for x.<br> 3x + 7y - 12
muminat

Step-by-step explanation:

3x+7y-12=0

3x+7y=12

3x=12-7y

x=12-7y/3

8 0
3 years ago
Which of the following statements is true of chords?
nydimaria [60]
All of those are true, except the one about the radius.  Because alternate definition of diameter uses the idea of chord. So, both ends of a chord have to be on the circle, but one end of a radius is at the center, so a radius can't be a chord.
6 0
3 years ago
The sum of two numbers is 62, and their difference is 8. What are the<br> numbers?
Marina CMI [18]

Answer:  35 and 27

Step-by-step explanation:

We can solve this by using a system of equations

x will be the first number while y will be the second

x+y=62

This equation means the two numbers will add to get 62

x-y=8

This equation means when subtracted the two numbers will have the difference of 8.

Now I will solve by elimination

x+y=62\\\\+x-y=8\\2x=70

When adding the two equations why was eliminated so now we can find the value of x

2x=70\\\frac{2x}{2} =\frac{70}{2} \\x=35

Now sub in x into one of the original equations to find the value of y

35+y=62\\35-35+y=62-35\\y=27

6 0
2 years ago
If x^2=-1, What is the value of x?
vodomira [7]

Answer:

-1

Step-by-step explanation:

-1^2 = -1

7 0
2 years ago
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