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sergiy2304 [10]
3 years ago
14

If x+y=10 find the value of y when x = 3

Mathematics
1 answer:
Reptile [31]3 years ago
3 0
Just substitute in the number 3 for x then subtract 3 at both sides and youll have y=7
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Maria's height while jumping on a a trampoline can be modeled by the equation h=-16t^2+18t+5. Where t=time in seconds and h=heig
Vadim26 [7]

Answer:

10.06 ft

Step-by-step explanation:

Maria's maximum height will occur when her velocity reaches zero (0). This means that she has stopped ascending and is about to begin descent.

The equation for the height reached by Maria on the trampoline is given as:

h=-16t^2+18t+5

To find her maximum height, we first have to find the time it will take her to get to that height and corresponding velocity (zero).

Her velocity can be found by differentiating her height i.e. dh/dt:

v = \frac{dh}{dt} = -32t + 18

Therefore, when v = 0:

0 = -32t+ 18\\\\=> 32t= 18\\\\t = 18 / 32 = 0.5625 secs

It takes her 0.5625 seconds to get to her maximum height.

Therefore, her height at that time (0.5625 seconds) is:

h=-16(0.5625)^2+18(0.5625)+5\\\\h = -16 * (0.3164) + 10.125+5\\\\h = -5.0624 + 15.125\\\\h = 10.06 ft

Therefore, her maximum height is 10.06 ft.

3 0
3 years ago
Which expression is not equal to the number 0? Group of answer choices 5 - 5 -8 - (-8) 6 - (-6) -7 + 7
Sedbober [7]
6 - (-6)
This is because two negatives make a positive, so you’ll be adding 6+6 which equals to 12 not 0
3 0
3 years ago
Yall can u please help me this is a grade i really need All answers before<br> 9:30
il63 [147K]

Answer:

Step-by-step explanation:

11: 16

12: 43.2

13: 1/18

3 0
3 years ago
What is 1/5 + 1/4 + 1/10
ivolga24 [154]

Answer:0.55

Step-by-step explanation:

1/5 + 1/4 + 1/10

add them all together

adds up to 0.55

8 0
3 years ago
Read 2 more answers
For a certain casino slot machine comma the odds in favor of a win are given as 27 to 73. Express the indicated degree of likeli
nikitadnepr [17]

Answer:

The probability is 0.27

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

In this problem, we have that:

Odds of a win are 27 to 73.

This means that for each 27 games that you are expcted to win, you are also expected to lose 73.

So

Desired outcomes:

27 wins

Total outcomes:

27 + 73 = 100 games

Probability

P = \frac{27}{100} = 0.27

Answer:

The probability is 0.27

7 0
3 years ago
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