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4 years ago

Find the product. Write your answer in exponential form. 3^9 • 3^7

Mathematics

1 answer:

rewona [7]4 years ago

4 0

Answer:

The product is 3^16

Step-by-step explanation:

When you multiply two numbers with the same base, you simply add the exponents.

9 + 7 = 16

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What are the odds of rolling a multiple of 5 using a 20 sided die?

masha68 [24]

Answer:

0.25

Step-by-step explanation:

5 divided by 20 is what you need to do to get that

4 0

3 years ago

Order -3.98, 3 8/9, -3 11/12, and 3.9 repeated from least to greatest

Mkey [24]

Answer:

Step-by-step explanation:

-3.98

3 8/9 = 3.888 (repeating)

-3

3.9

least to greatest :

-3.98 , -3, 3 8/9, 3.9

3 0

3 years ago

The AARP (American Association of Retired People) report that at least 60% of retired people under the age of 65 would return to

mart [117]

Answer:

Step-by-step explanation:

Proportion of retired people under the age of 65 would return to work on a full-time basis if a suitable job were available = 60/100 = 0.6 = P

Null hypothesis: P ≤ 0.6

Alternative: P > 0.6

First, to calculate the hypothesis test, lets workout the standard deviation

SD = √[ P x ( 1 - P ) / n ]

where P = 0.6, 1 - P = 0.4, n = 500

SD = √[ (0.6 x 0.4) / 500]

SD = √ (0.24 / 500)

SD = √0.00048

SD = 0.022

To calculate for the test statistic, we have:

z = (p - P) / σ where p = 315/500 = 0.63, P = 0.6, σ = 0.022

z = (0.63 - 0.6) / 0.022

z = 0.03/0.022

z = 1.36

At the 2% level of significance, the p value is less than 98% confidence level, thus we reject the null hypothesis and conclude that more than 60% would return to work.

4 0

3 years ago

we have to evaluate the expression for the given value of the variable. i got -16 but it’s supposed to be 48. help??

Dovator [93]

$\bf \cfrac{4(3h-6)}{1+h}\implies \stackrel{\textit{h=-2}}{\cfrac{4[3(-2)-6]}{1+(-2)}}\implies \cfrac{4[-6-6]}{1-2}\implies \cfrac{4[-12]}{-1} \\\\\\ \cfrac{-48}{-1}\implies 48$

8 0

4 years ago

Read 2 more answers

Please help quickly!

Jet001 [13]

Find the volume

volume=hpir^2
d/2=r=16/2=8

1.
hmm, ok, after 1/2 hour or 30 mins
30/5=6
6*1=6, 6 cubic meters
volume=6, solve for height
v=hpir^2
but r=8 all the time, solve for h
6=hpi8^2
6=hpi64
6/(64pi)=h
the depth is $\frac{3}{32 \pi}$ meters or about 0.02984155182973037545666570563235 meters
the depth is about 0.03 meters

2. the full volume is
v=6pi8^2=6pi64=384pi
1 cubic meter every 5 mins so
384pi/1 is how many 5 mininute intervals
so 384pi times 5=total minutes=1920pi minutes or about 6031.8578948924030178482752958966minutes

7 0

3 years ago