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4 years ago

Explain why you can subtract exponents when you are dividing two powers with the same base.

2 answers:

6 0

To divide exponents (or powers) with the same base, subtract the exponents. Division is the opposite of multiplication, so it makes sense that because you add exponents when multiplying numbers with the same base, you subtract the exponents when dividing numbers with the same base.

masya89 [10]4 years ago

3 0

When you divide numbers, you make the value smaller. So subtract the exponents will make the value with that base smaller.

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Roberto evaluated 34 ÷ 45 and got an answer of 1516. Which statement is true about his answer? Whoever get it right and helps me

AlexFokin [52]

Answer:

roberto is not smart

Step-by-step explanation:

34/45 is 0.75555555555 or 0.75 or .75

ur welcome

5 0

3 years ago

What is the value of t?<br> 45.19

Mariana [72]

Alternating Angles?
If so, its the same, so still 45.19
If its not Alternating Angles, then I’m lost.
Or is T referring to the line?

3 0

2 years ago

Read 2 more answers

Can someone help me please?! :’)

zloy xaker [14]

Answer: ##########################

Step-by-step explanation: YW

6 0

3 years ago

Last question was inncorrectly typed:1.A sample of students who has taken a calculus test has a mean =78.2, mode =67, median 67.

vampirchik [111]

Answer:

(A) The data set of the sample of students who has taken a calculus test is right skewed.

(B) The average of female students in the class is 66.

Step-by-step explanation:

(A)

For a left skewed distribution the Mean < Median < Mode.

For a right skewed distribution the Mean > Median > Mode.

For a symmetric distribution the Mean = Median = Mode.

Given: Mean = 78.2, Median = 67 and Mode = 67

In this case the mean of the data is more than the median and mode.

$Mean = 78.2>Median = Mode = 67$

Thus, the data set of the sample of students who has taken a calculus test is right skewed.

(B)

Total number of student ( $n$ ) = 35

Combined average ( $\mu_{c}$ ) = 70

Number of male student ( $n_{M}$ ) = 20

Average of male students ( $\mu_{M}$ ) = 73

Number of female student ( $n_{F}$ ) = 15

Average of female students = $\mu_{F}$

The formula to compute the combined average is:

$\mu_{c}=\frac{n_{M}\mu_{M}+n_{F}\mu_{F}}{n_{M}+n_{F}}$

Compute the value of $\mu_{F}$ as follows:

$\mu_{c}=\frac{n_{M}\mu_{M}+n_{F}\mu_{F}}{n_{M}+n_{F}}\\70=\frac{(20\times73)+(15\times\mu_{F})}{20+15}\\ 70\times35=1460+(15\times\mu_{F})\\\mu_{F}=\frac{2450-1460}{15} \\=66$

Thus, the average of female students in the class is 66.

8 0

4 years ago

I want the answer only, Due now.

klio [65]

Answer:

Write the equation then try the equation with the numbers from choice A then go down. do all of them. which ever ends up equal is the right answer.

Step-by-step explanation:

I will do the math but you try it first, then ill do the math step by step in the comments, but only if you try it first. im trusting you to try.

5 0

3 years ago