MATHEMATICS HIGH SCHOOL

What is the product of (x+1) and (2x^2+3x-1)?

Answers

Answer 1
Answer:

(x + 1)(2x^2 + 3x - 1) : Can be solved in multiple ways but easiest for me :P

x (2x^2 + 3x - 1) + 1(2x^2 + 3x - 1)

(2x^3 + 3x^2 - x) + (2x^2 + 3x - 1)

2x^3 + 5x^2 + 2x - 1

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My picture won’t upload. Can someone contact me on any social media, please! ASAP!

Answers

Answer:

try it again and it might work

Step-by-step explanation:

that happened to me I just did it again and it worked

Unit rate in feet per second 240 yards in 1 hour

Answers

The unit rate in feet per second of 240 yards per 1-hour will is 0.2 feet per second.

What is unit conversion?

To convert any unit into another is called a unit conversion.

In order to convert units, we need to care about their dimensions their dimension should not be changed.

For example conversion of a kilometer to a meter is to multiply by 1000 but meter and kilometer both unit is for distance only.

Another example could be kilo gram to gram.

Given that,

Speed = 240 yards/hour

Since,

1 yard = 3 feet ⇒ 240 yards = 720 feet

And

1 hour = 60 minutes ⇒ 1 hour = 3600 seconds

So,

240 yards/hour = 720/3600 feet/second

⇒ 0.2 feet / second.

Hence "The unit rate in feet per second of 240 yards per 1-hour will is 0.2 feet per second".

To learn more about unit conversion,

brainly.com/question/11543684

#SPJ2
240 yards per hour is
720 feet per hour
to convert hours to seconds, divide 720 feet by 3600 seconds per hour to get
0.2 feet/foot per second
OR
1/5 feet/foot per second

Don't understand the measure

Answers

Hello,

\widehat{ABD}=(180-40)/(2)=70 (sum of angles of a triangle=180°)

\widehat{ABE}=180-70=110 supplementary angles

\widehat{ABE}=\widehat{DCF} translation BC

\widehat{BCF}=110-40=70 image of the angle DAB by the axis symmetry DB

\widehat{BCF}=\widehat{BEF} opposed angles of a parallelogram
are supplementary.

\widehat{BEF}=\widehat{HEG} opposed angles by the vertex

\widehat{HEG}=\widehat{IHE}=70 alterne-interne angles (sorry for the words English is difficult for me)

Huang has a coupon that gives him 20% off all items purchased. He buys 3 shirts that each cost the same amount, and he pays with a $100 bill. Which expression represents the amount of change Huang should receive? Check all that apply

Answers

that is going to be like
80 dollars

Please help, thank you :)​

Answers

Answer:

2a=2

Step-by-step explanation:

math is the answer =)

A store uses the expression –2p + 50 to model the number of backpacks it sells per day, where the price, p, can be anywhere from $9 to $15. Which price gives the store the maximum amount of revenue, and what is the maximum revenue? (Revenue = price x number of backpacks.)

A. $9.00 per backpack gives the maximum revenue; the maximum revenue is $32.00.
B. $12.00 per backpack gives the maximum revenue; the maximum revenue is $312.00.
C. $12.50 per backpack gives the maximum revenue; the maximum revenue is $312.50.
D. $15.00 per backpack gives the maximum revenue; the maximum revenue is $20.00.

Answers

Letter C has the highest revenue so we will just have to check if it is correct.

-2(12.50)+50 = 25
Revenue = price x number of backpacks
Revenue = 25 x $12.50
Revenue = $312.50

So, letter C is the correct answer.

Answer:

$12.50 per backpack gives the maximum revenue; the maximum revenue is $312.50.

Step-by-step explanation:

It's c, i got it right on edge
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