3 years ago

Find the most important variable in the problem,

Mathematics

1 answer:

qaws [65]3 years ago

8 0

Answer:

I believe the answer is 261 miles an hour.

Step-by-step explanation:

783 divided by 3 is equal to 261. Please let me kow if you got the answer wrong or right. Hope this helps.

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This is Math 3. I am confused because of the -2

zhuklara [117]

Answer:

x=5

Step-by-step explanation:

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3 years ago

Alex is 22 years older than Lana. Four years ago Lana’s age was one-half of Alex’s current age. How old was Alex four years ago?

katen-ka-za [31]

Answer:

Step-by-step explanation

22 divided by 2 is 11

it says four years ago so add 11 and 4 and that equals 15

she is 15 right now. then add 22 which is 37 and subtract 4 which your answer would be 33

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3 years ago

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morpeh [17]

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4 years ago

Find the vertex of this parabola.<br><br><br><br> y = -2x2 + 4x + 12

STatiana [176]

For this case we have the following equation:
$y = -2x ^ 2 + 4x + 12
$
Deriving we have:
$y = -2x ^ 2 + 4x + 12

y '= -4x + 4$
We match zero:
$-4x + 4 = 0
$
We clear the value of x:
$4x = 4

x = 4/4

x = 1$
Then, we substitute the value of x in the equation of the parabola:
$y = -2 (1) ^ 2 + 4 (1) + 12

y = -2 + 4 + 12

y = 14$
Thus, the vertex of the parabola is the ordered pair:
$(x, y) = (1, 14)$
Answer:
The vertice is:
$(x, y) = (1, 14)$

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3 years ago

What is the difference 1 1/2 - 3/4 ?

kaheart [24]

Answer:

19/4

Step-by-step explanation:

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3 years ago