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Readme [11.4K]
2 years ago
7

If f(x)=2x+5 , determine the value of f(3x) .

Mathematics
2 answers:
makvit [3.9K]2 years ago
7 0

Answer:

Step-by-step ef(x)=-2x+5……i

and f(-3x)=?

let x=-3x so that

-2x+5=-3x

x=5

substitutinx x into… i

f(x)=-10+5=-5

f(5)=-5………ii

now f(–3x)=f(-15)

scrutinizing… ii ,we can propose that

f(-15)=15.

Thus f(-3x)=15xplanation:

ss7ja [257]2 years ago
7 0

f times x would equal to fx=2x+5 and i think we move the x move to the other side which makes it f=3x+5 and then we plug this equal into f(3x) (i think)  which makes it f(3x+f=3x+5)

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nexus9112 [7]

Answer:

x= -6

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x=12/-2

x=-6

   

5 0
3 years ago
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liraira [26]
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8 0
3 years ago
Pleaseee help with 22 &amp; 23 !! ASAP !!
Blizzard [7]

#22. We are given that y = 1/4. So, we want to plug this value into the expression 15/y:

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When you divide by a fraction, you should follow the rule “flip the guy and multiply”. Basically, 15/(1/4) = 15 * 4 = 60.

The answer for #22 is (D).

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But, we don’t have to find the areas of the region and circle; we can just solve the fraction:

(360 - 60)/360 = 300/360 = 30/36 = 5/6

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stellarik [79]

Answer:

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2 years ago
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