All categories

3 years ago

I was wondering if someone would help me with some show your work questions...

Mathematics

1 answer:

adell [148]3 years ago

4 0

Answer:

5/6

Step-by-step explanation:

to add fractions they need to have a common denominator

make 1/3 have a denominator of 18

1/3(6) = 6/18

9/18 + 6/18 = 15/18

15/18 can be simplified to 5/6

You might be interested in

Estelle bought 7.2 pounds of oatmeal and gave 6.1 pounds of it to a neighbor. How much

Harman [31]

Answer:

1.1

Step-by-step explanation:

7.2-6.1

3 0

3 years ago

When n=343 college students are randomly selected and surveyed, it is found that x=110 own a car. Find a 99% confidence interval

Liono4ka [1.6K]

Answer:

The margin of error will be "0.65". A further explanation is provided below.

Step-by-step explanation:

The given values are:

n = 343

x = 110

At 99% confidence level,

$\alpha = 1-99$ %

$=1-0.99$

$=0.01$

then,

$\frac{\alpha}{2} =\frac{0.01}{2}$

$=0.005$

or,

$Z_{\frac{\alpha}{2} }=Z_{0.005}$

$=2.576$

Now,

The point estimate will be:

⇒ $\hat{P}=\frac{x}{n}$

⇒ $=\frac{110}{343}$

⇒ $=0.321$

or,

⇒ $1-\hat{P}=1-0.321$

⇒ $=0.679$

The margin of error will be:

⇒ $E=Z_{\frac{\alpha}{2} }\times \sqrt (\frac{(\hat{P}\times (1 - \hat{P})) }{n} )$

On substituting the above values, we get

⇒ $=2.576\times \sqrt{\frac{0.321\times 0.679}{343} }$

⇒ $=2.576\times \sqrt{\frac{0.217959}{343} }$

⇒ $=0.065$

hence,

⇒ $\hat{P}-E$

⇒ $0.321-0.065$

⇒ $0.256,0.386$

6 0

3 years ago

Please help me do not put random answers

AysviL [449]

Answer:

1) 5x = 25

x = 5

2) y/4 = 7

y = 28

3) n/2 = 19

n = 38

4) 6g = 54

g = 9

5) 8b = 64

b = 8

6) h/6 = 11

h = 66

7) f/4 = 9

f = 36

8) 7s = 49

s = 7

5 0

3 years ago

The U.S. government collects information on Americans who do not have health insurance. Here is the data, sorted by geographic r

exis [7]

Do 55,427 divided by 67,103 which is 0.825998838 then multiply that by 100 to get 82.5998838 then round up to the nearest tenth to get 83 percent

8 0

3 years ago

F[4) =<br> If g(x) = 2, x=

vfiekz [6]

Answer:

-10 and 0.25

Step-by-step explanation:

f(4)=-10 and g(x) is 2 when x=0.25

5 0

3 years ago