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2 years ago

A charter bus travels 225 miles in

Mathematics

1 answer:

xz_007 [3.2K]2 years ago

5 0

D because y (time spent) = 50 × x (distance travelled)

225÷4.5=50

x÷y=50

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Levart [38]

Answer:

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Step-by-step explanation:

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3 years ago

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What is the distributive property to multiply 7 X 500,080.

geniusboy [140]

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3 years ago

Is 3/6 greater or less than 1/3??

katen-ka-za [31]

Answer:

greater

Step-by-step explanation:

3/6= 0.5

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3 years ago

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Consider f(x)=3ax−x2. write down a formula in terms of a for the maximum of f(x).

lidiya [134]

For this case we have the following function:
$f (x) = 3ax-x ^ 2
$
To find the maximum of the function, what we should do is to derive the equation.
We have then:
$f '(x) = 3a-2x
$
We match zero:
$3a-2x = 0
$
We clear the value of x:
$2x = 3a

x = (2/3) a$
We substitute the value of x in the function to find the maximum:
$f ((2/3) a) = 3a ((2/3) a) - ((2/3) a) ^ 2
$
Rewriting:
$f ((2/3) a) = 2a ^ 2 - (4/9) a ^ 2

f ((2/3) a) = (18/9) a ^ 2 - (4/9) a ^ 2

f ((2/3) a) = (14/9) a ^ 2$
Answer:
a formula in terms of a for the maximum of f (x) is:
$f ((2/3) a) = (14/9) a ^ 2$

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3 years ago

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Solnce55 [7]

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