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Darina [25.2K]
3 years ago
5

Please help with this. i can even give brainliest!!!!

Mathematics
1 answer:
son4ous [18]3 years ago
5 0

Answer: i think 10

Step-by-step explanation:

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-1/4n - n= -5/6<br><br> What does n equal, Please I need this done very quickly!!
amid [387]

Answer:

n = 2/3

Step-by-step explanation:

6 0
3 years ago
A rocket is launched from the top of a 99-foot cliff with an initial velocity of 122 ft/s.
Harman [31]
Remember that c is the initial height. Since we the rocket is in a 99-foot cliff, c=99. Also, we know that the velocity of the rocket is 122 ft/s; therefore v=122
Lets replace the values into the the vertical motion formula to get:
0=-16 t^{2} +122t+99
Notice that the rocket hits the ground at the bottom of the cliff, which means that the final height is 99-foot bellow its original position; therefore, our final height will be h=-99
Lets replace this into our equation to get:
-99=-16 t^{2} +122t+99
-16 t^{2} +122+198=0

Now we can apply the quadratic formula t= \frac{-b+or- \sqrt{ b^{2} -4ac} }{2a} where a=-16, b=122, and c=198
t= \frac{-122+or- \sqrt{ 122^{2}-(4)(-16)(198) } }{(2)(-16)}
t= \frac{-122+ \sqrt{27556} }{-32} or t= \frac{-122- \sqrt{27556} }{-32}
t= \frac{-122+166}{-32} or t= \frac{-122-166}{-32}
t= \frac{-11}{8} or t=9

Since the time can't be negative, we can conclude that the rocket hits the ground after 9 seconds.
5 0
3 years ago
Read 2 more answers
If i have $40.00 to spend and 1 pound of food costs $0.40 cents. How many pounds of food would i be able to buy?
Ivanshal [37]

Answer:

40/.40 = 100

You can buy 100 pounds of food.

Step-by-step explanation:

4 0
2 years ago
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What is the probability of choosing a red card from a deck of cards? Type your answer as a fraction.
siniylev [52]

Answer:

26/52 or 1/2

Step-by-step explanation:

There are 1-9, King, Queen, Jack, for both Diamonds and Hearts

6 0
3 years ago
Round 6700 to the nearest thousand
andriy [413]

Answer:

Step-by-step explanation:

it would be 7000 because the 7 is greater than five

6 0
3 years ago
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