All categories

3 years ago

Expand and simplify: 3x[(3 – x)(3+ x)]

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

3 0

Answer:

3x (9+3x-3x-x^2)

3x( 9-x^2)

= 27x-3x^3

You might be interested in

9р - Зр equivalent expression

Vesnalui [34]

Answer:

Step-by-step explanation:

9p - 3p needs to have the like terms combined. 9 - 3 is 6, and since you have to keep the p, the answer is 6p.

7 0

3 years ago

Carmen needs $1100 to purchase a computer.She has saved 1/3 of the money so far this year. She will save 3/4 of the remaining am

Yakvenalex [24]

Answer:

$916.67

Step-by-step explanation:

The remaining amount is 2/3 of the total. 3/4 of that is ...

(2/3)(3/4) = 2/4 = 1/2

of the total amount. Altogether, Carmen will have saved ...

1/3 + 1/2 = (2/6) +(3/6) = 5/6

of the total amount by the end of the year. She will have saved ...

$1100 × 5/6 ≈ $916.67 . . . . year-end total savings

8 0

3 years ago

Write an expression equivalent to x+5+2x+2

n200080 [17]

X + 5 + 2x + 2
x + 2x + 5 + 2
3x + 5 + 2
3x + 7

4 0

3 years ago

at a reception, 23 out of 100 pieces of a wedding cake have been eaten. what decimal represents the number of pieces of cake tha

rjkz [21]

0.23 represents the number of cake pieces that have been eaten.

Step-by-step explanation:

The decimals are the end result of fractions.

Given

Total number of cake pieces = 100

Cake pieces that have been eaten = 23

So the fraction of cake pieces that have been eaten will be determined by the fraction $\frac{23}{100}$

Converting the fraction into decimal will give us 0.23

Hence,

0.23 represents the number of cake pieces that have been eaten.

Keywords: Fractions, decimals

Learn more about decimals at:

#LearnwithBrainly

6 0

4 years ago

Reflect the point in the x-axis

Veseljchak [2.6K]

Answer:

first on will be 3 next one will be 5 next one will be 2

Step-by-step explanation:

I know this bc I took that same worksheet

3 0

3 years ago

Read 2 more answers