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3 years ago

What expression is equivalent to (3x^2+4x-7)(x-2)

Mathematics

2 answers:

goldfiish [28.3K]3 years ago

7 0

C. It’s the same thing as distributive property

viva [34]3 years ago

6 0

I believe the correct answer should be C

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HELP ME OUT PLZZ I WILL GIVE BRAINLISt

BaLLatris [955]

It might be A

Example: I tried to do the math and i came out with 1/20 so try it. i’m very sorry if it’s wrong

4 0

3 years ago

Read 2 more answers

How do you work out the rate, time and principal from the compound interest formula?

wlad13 [49]

Answer:

Part 1) $P=A/(1+\frac{r}{n})^{nt}$ (see the explanation)

Part 2) $r=n[\frac{A}{P}^{1/(nt)}-1]$ (see the explanation)

Part 3) $t=log(\frac{A}{P})/[(n)log(1+\frac{r}{n})]$ (see the explanation)

Step-by-step explanation:

we know that

The compound interest formula is equal to

$A=P(1+\frac{r}{n})^{nt}$

where

A is the Final Investment Value

P is the Principal amount of money to be invested

r is the rate of interest in decimal

t is Number of Time Periods

n is the number of times interest is compounded per year

Part 1) Find the Principal P

The values of A,r,n and t are given

Isolate the variable P

$A=P(1+\frac{r}{n})^{nt}$

Divide both side by $(1+\frac{r}{n})^{nt}$

$P=A/(1+\frac{r}{n})^{nt}$

Part 2) Find the rate r

The values of A,P,n and t are given

Isolate the variable r

$A=P(1+\frac{r}{n})^{nt}$

Divide both sides by P

$\frac{A}{P} =(1+\frac{r}{n})^{nt}$

Elevated both sides to 1/(nt)

$\frac{A}{P}^{1/(nt)} =(1+\frac{r}{n})$

subtract 1 both sides

$\frac{A}{P}^{1/(nt)}-1 =\frac{r}{n}$

Multiply by n both sides

$r=n[\frac{A}{P}^{1/(nt)}-1]$

Part 3) Find the time t

The values of A,P,r and n are given

Isolate the variable t

$A=P(1+\frac{r}{n})^{nt}$

Divide both sides by P

$\frac{A}{P} =(1+\frac{r}{n})^{nt}$

Apply log both sides

$log(\frac{A}{P})=log(1+\frac{r}{n})^{nt}$

Apply property of exponents

$log(\frac{A}{P})=(nt)log(1+\frac{r}{n})$

Divide both side by $(n)log(1+\frac{r}{n})$

$t=log(\frac{A}{P})/[(n)log(1+\frac{r}{n})]$

3 0

3 years ago

Ryan and karl spent 14 hours building a treehouse. ryan worked 1 less than twice karls hours. how many hours did each work?

Fittoniya [83]

Karl: k hours
Ryan: r hours

r+k=14 hrs
r = 2k-1 hrs

Then (2k-1) + k = 14 hours; 3k -1 = 14 hours; 3k = 15 hours; k = 5 hours.

Karl worked 5 hours; Ryan worked 2(5 hours) -1 hour = 9 hours.

3 0

3 years ago

H(x)= -x^2+3x for h(-3)

Anettt [7]

I believe the answer is -18.

8 0

3 years ago

Ron draws 16 cards from a standard deck of 52. The deck is made up of equal number of four suits-clubs, diamond, hearts, and spa

Nadusha1986 [10]

Each card has a 1/4 chance of being a spade. So if you draw 16 cards, what would one fourth of that be?

4 0

3 years ago