MATHEMATICS HIGH SCHOOL

Simplity
4x2 – 3x + 7 + 2x2 + 4x

Answers

Answer 1

Answer:

Answer:

6x^2+x+7

Step-by-step explanation:

4x^2-3x+7+2x^2+4x

4x^2+2x^2+4x-3x+7

6x^2+x+7

Related Questions

True or false?30 is divisible by 2, 4, 5, and 10. hurry please trying to go get my nails done
Steve bought 2 plain and 1/4 of a pepperoni pizza. In all how much pizza did he buy?
Which of the following is a solution for 5 - 2x ≤ -3?A. -4B. 4C. 1D. -1
For every increase of 1 on the Richter scale, an earthquake is 10 times more powerful. Which of the following models this situation?a-linear function with a negative rate of change b- linear function with a positive rate of change c-exponential decay function d-exponential growth function answer-exponential growth function
Does the point (2,3) lie on the line y=3/4x-2

Multiply 4.6 x 2/7 round the answer to the nearest hundredth

Answers

type into the calculator:
4.6*(2/7)
the calculator answer is 1.31428...
we want to round to the nearest hundredth. the hundredths place is in bold: 1.31428
to round, we look at the number to the right of the hundredths place, which is underlined:
1.31428
if the number on the right is 5 or greater, we add 1 to the number to the left. if the number on the right is 4 or less, then we leave the number on the left alone.
the number on the right here is 4, so we leave the number on the left alone, leaving us with 1.31

4.6x2/7
well I converted 2/7 to its decimal which is 0.285714286
then did 4.6x0.285714286 and got 1.314285716

F(x) = √6xg(x) = √24x
Find (f g)(x). Assume x ≥ 0.
OA. (f g)(x) = 72x
OB. (f.g)(x) = 12x
OC. (f.g)(x) = 12√√
OD. (f.g)(x) = √30x
Finds (f • g)(x) assume x >0
-

Answers

Answer:

$f(x) = √(6x)$

$g(x) = √(24x)$

$f(g(x)) = f( √(24x) ) = \sqrt{6 √(24x) } = √(6) \sqrt{ √(24) } \sqrt{ √(x) } = √(6) \sqrt{2 √(6) } \sqrt{ √(x) } =$

$√(12) \sqrt{ √(6x) }$

The correct answer is C.

$f(x)g(x) = √(6x) √(24x) = 12x$

antoine went on vacation to las vegas. his room cost 115.62 each night. his flight there cost $45.70 and his flight. was32.49. he averaged $15.00 per day on food. on the first dat antoine won$75.00 and on the last day he lost $25. if he stayed for 3 nights and 4 days, how much did the entire trip ( including airfare, food , hotel and wining ) cost him ?

Answers

Hotel

He stayed 3 nights, so $115.62 × 3 = $346.86

Airfare

$45.70 + $32.49 = $78.19

Food

He averaged $15 a day, and he stayed 4 days.

$15 × 4 = $60

Winnings

He won $75 but lost $25

$75 - $25 = $50 won.

Adding up all the expenses and winnings, we find that he paid $435.05 for his trip.

Tiana can clear a football field of debris in 3 hours. Jacob can clear the same field in 2 hours. If they decide to clear the field together, how long will it take them?50 minutes
1 hour 5 minutes
1 hour 12 minutes
5 hours

Answers

The answer is D. 5 hours, due to the fact that there football field together, so adding there times they had done the football field individually, Tiana,3 hours, and Jacob 2 hours 2h+3h=5hours. hope i helped.

at 8:03 am there are 188 empty seats on the train. at 8:10 am there are 160 empty seats. the number of seats decreases by the same amout each minute. (a)what equation can be used to relate the number of minutes after 8:00 am (M) to the number of empty seats on the train (E)? (b)how many seats will be empty at 8:15? (c)at what time will there be 120 empty seats? (d)at what time will there be no empty seats left ?

Answers

Given:
8:03 = 188 empty seats
8:10 = 160 empty seat

188 - 160 = 28 empty seats
8:10 - 8:03 = 0:07 minutes

28 / 7 minutes = 4 empty seats per minute

8:00 - 8:03 = 3 minutes
3 minutes * 4 seats per minute = 12 seats

188 + 12 = 200 empty seats at 8:00

8:15 - 8:10 = 0:05 minutes
5 minutes * 4 seats per minute = 20 empty seats
160 - 20 = 140 empty seats at 8:15

200 - 120 = 80 empty seats
80 empty seats / 4 empty seats per minute = 20 minutes
120 empty seats at 8:20.

8:00 = 200 empty seats
200 / 4 = 50 minutes
8:00 + 0:50 = 8:50 is the time when there are no empty seats left.

What number when multiplied by itself is 23 greater