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Tanya [424]
1 year ago
13

Imani is flying a drone. It takes off from a height of 24 feet above the ground and rises at a constant rate of 4.5 feet per sec

ond. Imani is trying to get it high enough above the ground to see the Hudson River. The drone must be at least 330 feet above the ground.
Mathematics
2 answers:
gogolik [260]1 year ago
7 0

Answer:

330=(4.5x)+24

Step-by-step explanation:

330=(4.5x)+24

-24               -24    subtract 24 from each side

306=4.5x

/4.5   /4.5              divide by 4.5

68 seconds

Firdavs [7]1 year ago
6 0

Answer:

It will take 73 seconds.

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lev has 9 tens. jim has 1 ten. they put all their tens together. dawn puts 9 ones with the tens. what number did they make?
MatroZZZ [7]
The answer to this 110

3 0
2 years ago
Define a function f on a set of real numbers as follows: f(x) = 3x − 1 x , for each real number x ≠ 0 Prove that f is one-to-one
dalvyx [7]

Answer with Step-by-step explanation:

We are given that

f(x)=\frac{3x-1}{x}

For each real number x\neq 0

To prove that f is one -to-one.

Proof:Let x_1 and x_2 be any nonzero real numbers such that

f(x_1)=f(x_2)

By using the definition of f to rewrite the left hand side of this equation

f(x_1)=\frac{3x_1-1}{x_1}

Then, by using the definition of f to rewrite the right hand side of this equation  of f(x_1)=f(x_2)

f(x_2)=\frac{3x_2-1}{x_2}

Equating the expression then we get

\frac{3x_1-1}{x_1}=\frac{3x_2-1}{x_2}

3x_1x_2-x_2=3x_2x_1-x_1

3x_1x_2-3x_1x_2+x_1=x_2

x_1=x_2

Therefore, f is one-to-one.

6 0
2 years ago
If the quantity 4 times x times y cubed plus 8 times x squared times y to the fifth power all over 2 times x times y squared is
MA_775_DIABLO [31]
\dfrac{4xy^3 + 8x^2y^5 }{2xy^2}

= \dfrac{4xy^3(1+2xy^2)}{2xy}

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8 0
2 years ago
Suppose that 3% of all athletes are using the endurance-enhancing hormone EPO (you should be able to simply compute the percenta
trapecia [35]

Answer:

Step-by-step explanation:

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3% x 0.99= 2.97%

The probability of a positive result without EPO is 0.1

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I don't know i may be wrong because you've put as an answer 0.0297 but if you like you may take only the first part of the answer.

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A collection of quarters and nickels contains at least 42 coins and is worth at most $8.00. If the collection contains 25 quarte
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Answer:

17

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Step-by-step explanation:

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