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3 years ago

Please help meeeeee simplify the expression

Mathematics

1 answer:

inessss [21]3 years ago

5 0

Answer:

$y^6$ , $12n^6$ , $20x^9$

Step-by-step explanation:

When you multiply like variables with each other, you add their powers together.

So...

1. $(y^2)(y)(y^3)\\y^{2+1+3} \\y^6$

2. $(3n^2)(4n^4)\\12n^{2+4}\\12n^6$

3. $(5x^4)(4x^5)\\20x^{4+5}\\20x^9$

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What is the underlined sentence mean can someone explain

suter [353]

Step-by-step explanation:

1235

Now when we talk about place values we have ones tens hundreds thousands ten thousands and so on. So when you look at no.1 its place value is ones because 1 is the first value.

So 2 is in tens.

Now the difference of tens and hundreds is tens follows the 2 place value and hundreds the next.

HOPE ITS HELPFUL

8 0

2 years ago

Read 2 more answers

A real estate agent sells a house for $87,000. she gets a commission of 6% on the sale. what is her commission?

Evgen [1.6K]

Her commission would be 6% of 87,000

turn ur percent to a decimal......" of " means multiply
0.06(87,000) = $ 5220 <==

8 0

3 years ago

What sample size is needed to give a margin of error within plus-or-minus 5% in estimating a population proportion with 90% conf

VARVARA [1.3K]

Answer: 271.

Step-by-step explanation:

When the prior population proportion of success is not available, then the formula to find the sample size is given by :-

$n=00.25(\dfrac{z_{\alpha/2}}{E})^2$

Given : Significance level : $\alpha: 1-0.90=0.1$

By using the standard normal distribution table ,

Critical value : $z_{\alpha/2}=1.645$

Margin of error : $E=0.05$

Then , the required minimum sample size will be :-

$n=0.25(\dfrac{(1.645)}{0.05})^2=270.6025\approx271$

Hence, the required minimum sample size is 271.

4 0

3 years ago

What is the domain of the function below?

amm1812

$f(x)=\log(x-4)+4\\\\The\ domain:\\\\x-4 > 0\qquad\text{add 4 to both sides}\\\\x > 4\\\\Answer:\ \boxed{x > 4\to x\in(4,\ \infty)}\to\boxed{D.}$

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3 years ago

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Solve the formula for C. Profit: P=R−C C=

Kipish [7]

You want to isolate C, so the first step would to have it be positive. You would do this by adding C to both sides of the equation to cancel the C on one of the sides out like this:
$p + c = r - c + c \\ p + c = r$
. Then you want to cancel out the P, so you subtract it on both sides like this:
$c + p - p = r - p \\ c = r - p$
And that is your answer

6 0

3 years ago