2 years ago

Will mark brainiest!!!

Mathematics

1 answer:

romanna [79]2 years ago

3 0

Happy to help :)

Have a great day:)

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For the function f(x)=3xsquared- 2x+5 find f(1) f(-2) and f(a)

Oksanka [162]

$f(x)=3x^2-2x+5\\\\
f(1):\ \ Substitude\ 1 \ as\ x\ into\ function:\\
f(1)=3*1^2-2*1+5=3-2+5=\textbf{6}\\\\
f(-2)\ \ Substitude\ x=-2\\
f(-2)=3*(-2)^2-2*(-2)+5=3*4+4+5=12+4+5=\textbf{21}\\\\
f(a)\ \ substitude\ x=a\\
f(a)=\underline{3a^2-2a+5}$

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3 years ago

How do you find the value of √a⁴ ??<br> (ill give brainliest)

dsp73

Answer:

$a^{2}$

Step-by-step explanation:

√a^4 is the same as:

√a × √a × √a × √a

group them as 2 pairs of

(√a × √a) × (√a × √a)

which makes

a × a

which is the same as $a^{2}$

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3 years ago

You work in the tech support department. An employee wants to reduce a photo so it's 1/4 the size the original, but the software

Luba_88 [7]

1/4 = 25/100 = 25%

D. 25%

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3 years ago

Can anyone help me with some summer homework ;(

marishachu [46]

Their houses are nine miles away from each other. Mark rides his bike at a rate of twelve miles per hour. Each hour consists of sixty minutes; therefore I would do 60/12 to get five, representing him being able to do one mile in five minutes. Hence, you shall perform 9*5 or nine times five to get the answer of fourty-five minutes.

12 MILES PER HOUR

60 divided by 12 = 5 minutes

ONE MILE PER 5 MINUTES

9 multiplied by 5 = 45 minutes

I hope this helps.

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3 years ago

A9 A rectangle and a semicircle are drawn as follows<br> so that AB = 4 and AC = 1. Find BD.

belka [17]

Answer:

BD would be 17 , hope this helps !!

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3 years ago

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