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3 years ago

Evaluate the function f(x)=−4x^2+6x−4 Find f(5)

Mathematics

1 answer:

Tamiku [17]3 years ago

8 0

Hey there!

1. How to find f(5)?

To find f(5) - simply substitute x = 5 in the function. f(5) means the value of f(x) at x = 5.

2. Substitution and Evaluate

$\large{f(5) = - 4( {5})^{2} + 6(5) - 4}$

Remember to follow the PEMDAS/BODMAS rules! Exponent comes before multiplication.

$\large{f(5) = - 4(25) + 30 - 4} \\ \large{f(5) = - 100 + 30 - 4} \\ \large{f(5) = - 74}$

3. Final Answer

f(5) = -74

If you have any questions regarding the question or my answer, feel free to ask!

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Answer:

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3 years ago

Read 2 more answers

What are the possible lengths of side Ab in a triangle which the given side lengths of 3 and 5 cm?

natali 33 [55]

Answer:

Plug this in a calculator and the answer will pop up.

Step-by-step explanation:

$\sqrt{5^{2} +3^{2}$

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3 years ago

HELPPPPPPPPPPPPPPP RATE 5 STARSS

Stels [109]

Answer:

13. c,

14. a.

Step-by-step explanation:

13. The length of a side PQ with coordinates of

P as (x,y) and Q as (w,z)

is: $\sqrt{(x-w)^{2} +(y-z)^{2} }$

so, the length of the side AB =

$\sqrt{(5-5)^{2}+(-2+7)^{2} } =\sqrt{0^{2}+5^{2} } =5$

the length of side BC =

$\sqrt{(5-1)^{2}+(-7+2)^{2} } =\sqrt{(4)^{2}+(-5)^{2} } =\sqrt{4^{2}+5^{2} }$

the length of side AC=

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now, the easiest one will be when the vertices are on the coordinate axes.

so, option c will be the most appropriate one.

14. If u see the figure clearly, the lines l and FH are parallel.

the parallel postulate, i.e, the alternate interior angles will always be congruent.

here, the alternate interior angles are angle1 and angle4.

therefore to prove this step, he used parallel postulate as a reason.

so, the correct option is "a"

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4 years ago

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