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3 years ago

Hey guyss I need help with 3 of these questions :)

1 answer:

6 0

If there is a negative exponent, just flip them over for that exponent to be positive. Example: x^-3 would be 1/x³. Thus,

1. 2b²/5a^4
2. (5a³n)³
Distribute the exponent 3 to each term.
5³a^9n³ = 125a^9n³
3. (x^n+5/y)²
Distribute the exponent 2 to each term.
x^(2n) + 5²/y²
x^(2n) + 25/y²

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Can someone help me on both questions

AURORKA [14]

20. is 71 hope this helos

5 0

3 years ago

Read 2 more answers

Simplify the expression 6(6-2x)- 10( + 1)

dexar [7]

Answer:

−12x+26

Step-by-step explanation:

i said so kid

Use https://www.mathpapa.com/algebra-calculator.html

3 0

3 years ago

In a paper bag, 7 of the 15 marbles are yellow. In a cloth bag, 2 of the 15 marbles are yellow. If Tim randomly draws one marble

ddd [48]

Answer :

$\frac{7}{15}$ × $\frac{2}{15}$ = $\frac{14}{225}$

Step-by-step explanation:

P( $Event_{1}$ ) = choosing yellow marble from paper bag = $\frac{favourable outcomes}{possible outcomes}$ = $\frac{7}{15}$

P( $Event_{2}$ ) = choosing yellow marble from cloth bag = $\frac{favourable outcomes}{possible outcomes}$ = $\frac{2}{15}$

∵ Resultant outcome is dependent upon both the events and both events are independent from each other, so we can apply intersection rule [ P(A∩B)=P(A)×P(B) ] here

∴ Probability ( Both marbles are yellow) = P( $Event_{1}$ ) × P( $Event_{2}$ ) = $\frac{7}{15}$ × $\frac{2}{15}$

3 0

3 years ago

What is the least common multiple (LCM) of 8 and 10?

Svet_ta [14]

Answer:

LCM (8,10) = 2 × 2 × 2 × 5 = 40

Step-by-step explanation:

Least common multiple is the smallest number that is multiple of both the given numbers.

Example: LCM of 2 and 3 is 6 .

6 is a multiple of both 2 and 3 .

Given numbers are 8 and 10

First write both in factor form,

⇒ 8 = 2 × 2 × 2

⇒ 10 = 2 × 5

We find LCM by writing common terms one times and multiplying all terms together,

Here, 2 is common to both 8 and 10 so we write it once only.

Thus, LCM (8,10) = 2 × 2 × 2 × 5 = 40.

4 0

3 years ago

Kurt bought a box of 96 crayons for $10.56. Which is the best estimate for each crayon? *

Scilla [17]

Answer:

Step-by-step explanation:

10.56/ 96= 0.11 which you can round down to 0.10

7 0

3 years ago