All categories

2 years ago

Help me :( it's algebra and I am so confused. (explanation would be nice)

Mathematics

2 answers:

Mekhanik [1.2K]2 years ago

7 0

Answer:

-3x^4-3x+15x^2

Hope it helps

The 1st option

gulaghasi [49]2 years ago

7 0

Answer:

- 3 $x^{4}$ + 15x² - 3x

Step-by-step explanation:

Given

(5 $x^{4}$ - 3x + 8x²) - (8 $x^{4}$ - 7x²)

Remove the parenthesis on first and distribute second by - 1

= 5 $x^{4}$ - 3x + 8x² - 8 $x^{4}$ + 7x² ← collect like terms

= - 3 $x^{4}$ + 15x² - 3x ← in standard form

You might be interested in

Charlotte bought 25 cookies to share with her class, and 5 of them are oatmeal raisin. What percent of the cookies are oatmeal r

LUCKY_DIMON [66]

Answer:

20%

Step-by-step explanation:

25 divided by 5 = 5

Convert to decimal

0.20

Convert to percentage

20%

7 0

2 years ago

Read 2 more answers

Richie and bethany play basketball and practice shooting free throws after school. During one practice session, Richie attempted

mamaluj [8]

Answer:

Bethany did not do better than Richie because her average score was less than his.

Step-by-step explanation:

Average Value

The average or mean value of m successes out of n tries is given by:

$\displaystyle \bar x=\frac{m}{n}$

During a practice session playing basketball, Richie made m=12 free throws from n=15 attempts. His average score was:

$\displaystyle \bar x=\frac{12}{15}=0.8$

Bethany made 8 free throws for every 3 that she missed, this means she made 8 out of 11 attempts. Her average score was:

$\displaystyle \bar x=\frac{8}{11}=0.72$

Bethany did not do better than Richie because her average score was less than his.

5 0

2 years ago

Write it in an algebraic expression form!

Phoenix [80]

1.

(x/2) - 7 = 11

2.

2x + 7 = 27

3.

2x - 5 = 25

Hope this helped!! (:

7 0

1 year ago

Select the correct answer. Which statement about an electromagnet is true? A. It doesn’t function without a source of current. B

zubka84 [21]

Answer:I’m going to say it’s A I apologize if it’s wrong

Step-by-step explanation:

Magnets are magnetic fields that compares together when attracted close to one another so that’s Why I’m choosing A because it’s close to what I think

3 0

2 years ago

105 divided by 3 long division estimating please show your work

UNO [17]

35 I had this for a test the answer is

5 0

2 years ago

Read 2 more answers