MATHEMATICS HIGH SCHOOL

Which expression is equivalent to (3x^2+4x-7)(x-2)A.x(3x^2+4x-7)+2(3x^2+4x-7)
B.(3x^2+4x-7)(x)+(3x^2+4x-7)(-2)
C.x(3x^2+4x-7)-2
D.2x(3x^2+4x-7)

Answers

Answer 1

Answer:

Answer:

B. (3x^2+4x-7)+2(3x^2+4x-7) Is your answer

Step-by-step explanation:

Answer 2

Answer:

Answer:

I got B on apex

Step-by-step explanation:

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It takes Gary 1 hour to milk all the cows, and it takes Dana 1.5 hours. How long will it take them to do the job together? Please explain all the steps and models/equations used. Thanks so much.

Answers

It takes Gary 1 hour to milk all the cows. 1 hour per job ==> 1 job per hour.

It takes Dana 1.5 hours. 1.5 hour per job ==> 1/1.5 job per hour.

Working together, they can do (1/1 + 1/1.5) job per hour.

To add these fractions, put them over a common denominator:

(1/1 + 1/1.5) = (1.5/1.5 + 1/1.5) = (2.5/1.5) = 5/3 job per hour.

5/3 job per hour ==> 3/5 hour per job.

3/5 hour = 36 minutes.

What is the constant of proportionality?

Answers

Answer:

The constant of proportionality is the ratio between two directly proportional quantities. Two quantities are directly proportional when they increase and decrease at the same rate.

Step-by-step explanation:

Here it is.

Constant of proportionality = 4

Divide.6,859 ÷ 79

The quotient is

and the remainder is
.

Answers

Answer:

86, 65

Step-by-step explanation:

Quotient is 86

Remainder is 65

Joshua was offered a job that paid a salary of $77,500 in its first year. The salary was set to increase by 2% per year every year.If Joshua worked at the job for 5 years, what was the total amount of money earned over the 5 years, to the nearest whole
number?

Answers

Answer:

if you want it as dollars and cents it is $77.50 but in nearest whole number it would be 78 dollars

Step-by-step explanation:

step 1: multiply the 2 by 5 and you get 10%

step two: you put 10 over 100 and multiply 77,500

10/100 x 77,500/1= $77.50

but when you roung it off you get 78 dollars

Answer: joshua earned $403,313 over 5 years

Step-by-step explanation:

Carissa and Louann both have savings accounts. Carissa has $250 in her account and deposits $80 per month. Louann has $1230 in her account and withdraws $60 per month.After how many months will they have equal amounts of money in their accounts? What amount of money will each have when it is the same amount?

It will take ____ months. Then, they will both have $ ____
in their accounts.

Answers

carissa value after x months=current+amount deposited
louan value after x months=current-amount taken out

carissa depositied=amount per month times x months=80x
louan take out=amount per month tiems x months=60x

when wil amount be equal
se equal

cariss=lousa
250+80x=1230-60x
add 60x both sides
250+140x=1230
minus 250 both sides
140x=980
divide both sides by 140
x=7

find how much that is
250+80(7)=250+560=810

7 months both have $810

The diagonal of a square measures 32 meters. what is the area of the square?