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3 years ago

Verify if 1/2x-2 and g(x) = 2x + 4 are inverses

1 answer:

5 0

They are inverses if f( (g(x)) = x

f((g(x)) = (1/2) (2x + 4) - 2 = x + 2 - 2 = x

so this proves that g(x) is the inverse of f(x)

the other inverse g((f(x)) should also be = x

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How do you estimate 289 and 7

padilas [110]

You first round 289 and get 290 then multiply it by 7

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Find p(2) and p(4) for the function p(x) = 6x4 + 4x3 – 3x2 + 8x + 15.

gulaghasi [49]

Answer:

p(2) =147 and p(4) = 1791

Step-by-step explanation:

We are given p(x)= 6x^4 + 4x^3 – 3x^2 + 8x + 15.

Now we need to find value of p(2) and p(4)

Put x =2,

p(2) = 6(2)^4 + 4(2)^3 – 3(2)^2 + 8(2) + 15

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p(2) = 96+32-12+16+15

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Now put x = 4

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p(4) = 6(256)+4(64)-3(16)+8(4)+15

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3 years ago

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5.3x10 4 in standard form.

valina [46]

Answer:

5.3× 10⁴= ?

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10⁴ can also be written as 10×10×10×10= 10000

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An accountant is monitoring the average rates per hour for four employees.

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Eighty-eight percent of all people who try to do this ratio and proportion

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Answer: 61 people have worked on this worksheet so far.

Step-by-step explanation:

Given: 80% people try to do this ratio and proportion worksheet find they need some help with the problems.

Let x be the total number of people worked on this worksheet so far.

People need some help with the problems. =80% of x = 0.80x

As per given,

0.80x=49

$\Rightarrow x=61.25\approx61$

Hence, 61 people have worked on this worksheet so far.

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