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2 years ago

100 points please OMG HELP ME PLEASE I WILL DO ANYTHING I AM TIMED HELP MEEEEEEEEEEEEEEEE 5. Find the distance between the

Mathematics

1 answer:

Nesterboy [21]2 years ago

4 0

Answer:

The answer is 14.86. I hope that this helps

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Simplify -(-2a + 13) + (-9a - 2) - (-7a - 3)

nadya68 [22]

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3 years ago

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Find the x intercept and the y intercept of -x+2y=8

vekshin1

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Step-by-step explanation:

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2 years ago

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What is the Scale Factor? (I need an actual answer this time so I can move on from my assignment I'm working on)

steposvetlana [31]

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2 years ago

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horsena [70]

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2 years ago

The maximum value of the function: f(x)= -5 x ^2 +30x-200 is?

VARVARA [1.3K]

Answer:

$\displaystyle - 155$

Step-by-step explanation:

we are given a quadratic function

$\displaystyle f(x) = - 5 {x}^{2} + 30x - 200$

we want to figure out the minimum value of the function

to do so we need to figure out the minimum value of x in the case we can consider the following formula:

$\displaystyle x _{ \rm min} = \frac{ - b}{2a}$

the given function is in the standard form i.e

$\displaystyle f(x) = a {x}^{2} + bx + c$

so we acquire:

b=30
a=-5

thus substitute:

$\displaystyle x _{ \rm min} = \frac{ - 30}{2. - 5}$

simplify multiplication:

$\displaystyle x _{ \rm min} = \frac{ - 30}{ - 10}$

simply division:

$\displaystyle x _{ \rm min} = 3$

plug in the value of minimum x to the given function:

$\displaystyle f (3)= - 5 {(3)}^{2} + 30.3 - 200$

simplify square:

$\displaystyle f (3)= - 5 {(9)}^{} + 30.3 - 200$

simplify multiplication:

$\displaystyle f (3)= - 45 + 90- 200$

simplify:

$\displaystyle f (3)= - 155$

hence,

the minimum value of the function is -155

5 0

2 years ago