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Anni [7]
3 years ago
7

Simplify the expression (x)^3(x^3y)^2

Mathematics
1 answer:
larisa86 [58]3 years ago
6 0

Answer:

A)

Step-by-step explanation:

(a^{m})^{n} = a^{mn}\\\\x^{3}*(x^{3}*y^{2})^{2}=x^{3}*(x^{3})^{2}*(y)^{2}\\\\\\=x^{3}*x^{3*2}*y^{2}\\\\\\=x^{3}*x^{6}*y{2}\\\\\\=x^{3+6}*y^{2}\\=x^{9}y^{2}

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What is 14.1% of the 132 mL rounded to the nearest 10th
Anastasy [175]
132 x 14.1% = 18.612


So 18.612 rounded to 18.6
5 0
3 years ago
you have $18 to buy peppers. peppers cost $1.50 each. write and solve an inequality that represents the number of peppers you ca
Nezavi [6.7K]

At most 12 peppers can be bought with $18

Step-by-step explanation:

Given

Total amount for peppers = $18

Cost per pepper = $1.50

Let p be the number of peppers that can be bought from $18 at $1.50 per pepper

So,

1.50p\leq 18

Dividing both sides by 1.50

\frac{1.50p}{1.50}\leq \frac{18}{1.50}\\p\leq 12

Hence,

At most 12 peppers can be bought with $18

Keywords: Inequality, solution

Learn more about inequalities at:

  • brainly.com/question/11286417
  • brainly.com/question/12884373

#LearnwithBrainly

5 0
3 years ago
Two dressmakers, Sue and Anne, sewed costumes for a local theater production. Sue sewing alone for 10 hours sewed some of the co
crimeas [40]

Answer:

Sue would have taken 15 hours to sew all the costumes.

Step-by-step explanation:

In 10 hours, Sue sewed 5 costumes (1 every 2 hours).

Sue= 5 costumes

Sue sewed in 10 hours, twice as many costumes as Anne in 16 hours. Then 5 is twice costumes than Anne produced. Therefore, Anne sewed 2.5 costumes.  

Anne: 2.5 costumes  

In total they had to sew 5+2.5= 7.5 costumes. Then Sue would have taken 7.5*2= 15 hours to sew them all.  

6 0
3 years ago
PLEASE HELP I WILL GIVE BRIANLIEST 15 POINTS!!! What is the equation in slope-intercept form of the line that crosses the x-axis
harkovskaia [24]

Answer:

Choice D

Step-by-step explanation:

First we should find the slope of the equation, so since it's perpendicular to the other equation that means it's the opposite and the reciprocal of that slope. So the slope is \frac{9}{4}.

Now we have to find the y-intercept. We already know the x-intercept, so we could use that to find the y-intercept. For that we need to know the slope and one ordered pair, which is (36,0). Then we plug into this formula  y=mx+b.

y=mx+b\\0=\frac{9}{4}(36)+b\\0=81+b\\b=-81

So now that we found the y-intercept we just have to put it all together....

y=\frac{9}{4}x-81

8 0
3 years ago
In 1960, census results indicated that the age at which men in a certain region first married had a mean of 24.5 years. It is wi
Aleksandr [31]

Answer:

t=\frac{25.3-24.5}{\frac{5.4}{\sqrt{40}}}=0.937    

The degrees of freedom are given by:

df=n-1=40-1=39  

And the p value would be given by:

p_v =P(t_{(39)}>0.937)=0.177  

Step-by-step explanation:

Information given

\bar X=25.3 represent the sample mean

s=5.4 represent the sample standard deviation

n=40 sample size  

\mu_o =24.5 represent the value to verify

t would represent the statistic  

p_v represent the p value

Hypothesis to test

We want to test if the true mean is higher than 24.5, the system of hypothesis would be:  

Null hypothesis:\mu \leq 24.5  

Alternative hypothesis:\mu > 24.5  

The statistic is given by:

t=\frac{\bar X-\mu_o}{\frac{s}{\sqrt{n}}}  (1)  

Replacing the info given we got:

t=\frac{25.3-24.5}{\frac{5.4}{\sqrt{40}}}=0.937    

The degrees of freedom are given by:

df=n-1=40-1=39  

And the p value would be given by:

p_v =P(t_{(39)}>0.937)=0.177  

4 0
3 years ago
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