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mafiozo [28]
3 years ago
13

A ball is thrown in the air. The relationship between the time the ball is in the air, t (in seconds), and the height of the bal

l in feet above the ground (h) is represented by h=-16t2+20t+6. How many seconds will it take for the ball to hit the ground?
Mathematics
1 answer:
Veseljchak [2.6K]3 years ago
6 0

Answer:

88

Step-by-step explanation:

87+1=88

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What is the difference of polynomials (8r6s3-9r5s4+3r4s5)-(2r4s-5r6-4r5s4)
Alinara [238K]
If you would like to solve <span>(8r^6s^3 – 9r^5s^4 + 3r^4s^5) – (2r^4s^5 – 5r^3s^6 – 4r^5s^4), you can do this using the following steps:

</span>(8r^6s^3 – 9r^5s^4 + 3r^4s^5) – (2r^4s^5 – 5r^3s^6 – 4r^5s^4) = 8r^6s^3 – 9r^5s^4 + 3r^4s^5 – 2r^4s^5 + 5r^3s^6 + 4r^5s^4 = 8r^6s^3 – 5r^5s^4 + r^4s^5<span> + 5r^3s^6
</span>
The correct result would be 8r^6s^3 – 5r^5s^4 + r^4s^5<span> + 5r^3s^6.</span>
7 0
3 years ago
A is plotted on a coordinate grid at start bracket negative 3 and 1 over 2, 2 end bracket.. Choose the correct grid that best sh
ra1l [238]

Answer:

B

Step-by-step explanation:

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5 0
3 years ago
Derek wrote the following paragraph proof for the Vertical Angles Theorem:
Aneli [31]
The phrase that would complete the proof is this:
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7 0
3 years ago
Read 2 more answers
c. Using a standard deck of 52 cards, the probability of selecting a 4 of diamonds or a 4 of hearts is an example of a mutually
dybincka [34]

Answer:

True

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If two events X and Y are mutually exclusive,

Then,

P(X∪Y) = P(X) + P(Y)

Let A represents the event of a diamond card and B represent the event of a heart card,

We know that,

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Since, P(A∪B) = P(A) + P(B) - P(A∩B)

⇒ P(A∪B) = P(A) + P(B)

By the above statement,

Events A and B are mutually exclusive,

Hence, the probability of selecting a 4 of diamonds or a 4 of hearts is an example of a mutually exclusive event is a true statement.

4 0
3 years ago
The Mathalot company makes and sells textbooks. They have one linear function thst represents the cost of producing textbooks an
OverLord2011 [107]

It's only possible for the two lines to intercept isif they have different slopes.

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If the lines have different slopes, they would  eventually intercept.

3 0
3 years ago
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