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3 years ago

3x–x–4x+4x What is this simplfied to? Please use exponents.

Mathematics

2 answers:

madam [21]3 years ago

7 0

im pretty sure you dont need exponents for this bud

3x-x-4x+4x

2x+0

sp2606 [1]3 years ago

7 0

2x do you want the steps on how to solve it?

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A sports arena covers

Norma-Jean [14]

What is the full question?

4 0

3 years ago

How do I solve 2t<-4 or 7t>49

laiz [17]

2t<-4
t< (-4/2)
t<-2

just treat the greater and less than signs as equal signs

5 0

3 years ago

2. Four pieces of candy are drawn at random from a bag containing five orange pieces and seven brown pieces.

alexandr402 [8]

Answer:

a) $12C4 = \frac{12!}{4! (12-4)!}= \frac{12!}{4! 8!}=\frac{12*11*10*9*8!}{4! 8!}= 495$ ways

b) $5C2 = \frac{5!}{2! (5-2)!}= \frac{5!}{2! 3!}=\frac{5*4*3!}{2! 3!}= 10$ ways

c) $7C2 = \frac{7!}{2! (7-2)!}= \frac{7!}{2! 5!}=\frac{7*6*5!}{2! 5!}= 21$ ways

Step-by-step explanation:

Combinatory means combination or arrangement of different elements.

If we have n total elements and we want to find in how many ways we can select x we can use this general formula:

$nCx= \frac{n!}{x! (n-x)!}$

Where $n! = n *(n-1)!$

a. How many different ways can four pieces be selected from the 12 colored pieces?

For this case we have:

$12C4 = \frac{12!}{4! (12-4)!}= \frac{12!}{4! 8!}=\frac{12*11*10*9*8!}{4! 8!}= 495$ ways

b. How many different ways can two orange pieces be selected from five orange pieces?

For this case we have:

$5C2 = \frac{5!}{2! (5-2)!}= \frac{5!}{2! 3!}=\frac{5*4*3!}{2! 3!}= 10$ ways

c. How many different ways can two brown pieces be selected from seven brown pieces?

For this case we have:

$7C2 = \frac{7!}{2! (7-2)!}= \frac{7!}{2! 5!}=\frac{7*6*5!}{2! 5!}= 21$ ways

6 0

4 years ago

Simplify the expression.<br> 4(-8x + 5) – (-33x – 26) =

Taya2010 [7]

Just follow basic distribution and simplifying rules and your answer is x+46=

8 0

3 years ago

Read 2 more answers

A type of fish for your aquarium costs $9 each. You can spend at most $63.

charle [14.2K]

Answer:

9x>63$

Step-by-step explanation:

nine $ aquarium , at most > 63$

8 0

3 years ago