(3x-8)(2xsquared4x-9) multiply and write the result in descending order

Answers

Answer 1

Answer: Hello there, you can proceed with the multiplication of these factors using the FOIL method (which stands for first, outer, inner and last) multiply I assume that by descending order, you mean by decreasing power. If it were so, the answer is 6(x^3)12(x^2)-16(x^2)32x-27x+72.

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Can someone help please!!!!!

Answers

Answer:

${x}^(2) - 3$

Which expression can be used to convert 22 Australian dollars to US dollars?Assume 1.2 Australian dollars equals 1 US dollar.

Answers

Answer:

Expression used to convert 22 Australian Dollar to US Dollar is $(22)/(1.2)$

Step-by-step explanation:

Given:

22 Australian Dollars.

To Do: Expression which can be used to convert Australian dollar to Us dollar.

Let, x be the number of Australian Dollars and y be the US Dollars.

We know that 1.2 Australian Dollar equal to 1 US Dollar.

⇒ 1 Australian Dollar = $(1)/(1.2)$ US Dollar

So, x Australian Dollar = $(1)/(1.2)* x\:=\:(x)/(1.2)$ US Dollar

Thus, Expression that can be used to convert Australian Dollar into US Dollar is given by,

$y=(x)/(1.2)$

So. 22 Australian Dollar

put x = 22

$y=(22)/(1.2)=18.3$ US Dollars

Therefore, Expression used to convert 22 Australian Dollar to US Dollar is $(22)/(1.2)$

1.2(22)=x
x= US Dollar amount of 22 Australian dollars.

What is the degree measure of a semicircle

Answers

A circle is 360 degrees. Divide 360 by 2.

360 ÷ 2 = 180

The degree measure of a semicircle is 180 degrees.

Alex's carpet cleaning service charges $12 dollarsper job and $0.10 per foot of vacuuming.
Alex earned $52. How many feet did he vacuum?
y= rate • + constant

Answers

40 ft

explanation

52-12= 40

Tom took a trip of 1,020 miles . He traveled by train at 55 miles an hour and the same number of hours by plane at 285 mph . How many hours did the trip take?

Answers

The number of hours Tom took a trip of 1,020 miles is 3 hours.

Given that, Tom took a trip of 1,020 miles.

What is the speed?

The speedformula can be defined as the rate at which an object covers some distance. Speed can be measured as the distance traveled by a body in a given period of time. The SI unit of speed is m/s.

Tom traveled by train at 55 miles an hour and the same number of hours by plane at 285 mph.

Let the number of miles travelled by train be x. Then, the number of miles travelled by plane be 1020-x.

Time = x/55 = (1020-x)/285

⇒ 285x = 55 (1020-x)

⇒ 285x = 56100 - 55x

⇒ 285x + 55x = 56100

⇒ 340x= 56100

⇒ x = 56100/340

⇒ x = 165 miles

So, time = 165/55 = 3 hours

Therefore, the number of hours Tom took a trip of 1,020 miles is 3 hours.

To learn more about the speed, distance, and time visit:

brainly.com/question/4978052.

#SPJ5

Answer:

He traveled 3 hours by train and 3 hours by plane, so the trip take 6hours.

Cone A has a height of 3 meters and a radius of 2 meters. Cone B has the same radius, but the height is 6 meters. Calculate the volume of each cone. Which conclusion is correct?A) The volume of cone A is twice the volume of cone B.
Eliminate
B) The volume of cone B is twice the volume of cone A.
C) The volume of cone B is 4 times the volume of cone A.
D) The volume of cone B is three times the volume of cone A.

Answers

V=(1/3)hpir^2

Avol is (1/3)3pi2^2=4pi m^3

Bvol is (1/3)6pi2^2=2pi4=8pi m^3

B is twice vol A

answer is B

Answer:

Step-by-step explanation:

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