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3 years ago

F(x) = 2x3 + 732 – 4x - 5 g(x) = 3x – 2 Find ( f - g)(x).

Mathematics

1 answer:

Nadya [2.5K]3 years ago

6 0

Answer:

(f-g) (x)=731.............

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NEED ASAP!!! Evaluate the expression for the given value of the variable. 28+ 7 9r r= -1/2

Vlad [161]

Evaluate just means plug in the value that they give you, so instead of r you plug in -1/2
So. 28+79(-1/2)
=28+(-39.5)
= 28-39.5
=-11.5 or -11 1/2

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3 years ago

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11. You expect to have the given amount in an account with the given terms. Find how much you can withdraw periodically in order

Orlov [11]

This is a question on Present Value of Annuity and we seek the periodic withdrawal.

$\begin{gathered} F\text{VA}=\text{PMT(}\frac{(1+\frac{i}{m})^{nm}-1}{\frac{i}{m}}) \\ \text{Therefore, PMT=}\frac{FVA}{(\frac{(1+\frac{i}{m})^{nm}-1}{\frac{i}{m}})} \end{gathered}$

where:

FVA = Future value of annuity

PMT = Periodic Withdrawal

i = interest/discount rate

n = no of years

m = no of compundings per interest period

$\text{PMT=}\frac{300000}{(\frac{(1+\frac{0.0445}{365})^{22\times365}-1}{\frac{0.0445}{365}})}=22.01$

PMT = $22.01

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1 year ago

Does this graph represent a function? Why or why not?

Morgarella [4.7K]

Answer:

Option D is the correct answer

Step-by-step explanation:

D. Yes, because it passes the vertical line test.

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3 years ago

If mike read 30 pages an hour how long will it take him to read 1225 pages

Gnesinka [82]

Answer: 2450 min or 40hr and 50 min

Step-by-step explanation:

We can use a proportion to set up this equation.

$\frac{30 pages}{60 min} =\frac{1225 pages}{x min}$

We cross muliply so get our equation.

$30x=1225(60)\\$

$30x=73500$

$x=2450 min$

It took Mike 2450 min to read 1225 pages. We can also use a proportion to write this in hours

$\frac{60min}{1hr} =\frac{2450min}{x }$

$60x=2450$

$x=40 hr 50 min$

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3 years ago

Gabby received change worth $2.10. She received 3 more dimes than nickels and 4 less quarters than nickels. How many of each kin

xz_007 [3.2K]

Answer:

Gabby received

7 nickels

10 dimes

3 quarters

Step-by-step explanation:

Let

x----> the number of dimes

y----> the number of nickels

z---> the number of quarters

Remember that

1 dime=$0.10

1 nickel=$0.05

1 quarter=$0.25

we know that

0.10x+0.05y+0.25z=2.10 ------> equation A

x=y+3-----> equation B

z=y-4 -----> equation C

substitute equation B and equation C in equation A and solve for y

0.10(y+3)+0.05y+0.25(y-4)=2.10

0.10y+0.30+0.05y+0.25y-1=2.10

0.40y=2.10-0.30+1

0.40y=2.80

y=7 nickels

Find the value of x

x=y+3 -----> x=7+3=10 dimes

Find the value of z

z=y-4 -----> z=7-4=3 quarters

therefore

Gabby received

7 nickels

10 dimes

3 quarters

6 0

3 years ago