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Butoxors [25]
2 years ago
13

Help me please ! I don't understand this

Mathematics
1 answer:
netineya [11]2 years ago
6 0

u have to calcuate there outsides by multiplying


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You own a small comic book store. 2/3 of your store's floor space is dedicated to
svetoff [14.1K]

Answer:

66.66

Step-by-step explanation:

So for this one all you really have to do is turn 2/3 into a precent which is pretty easy.

This fist step to this would just be dividing 2 and 3

2/3=0.66666666666666666666 (and on and on and on)

Now just move the decimal 2 times to the right

66.6666666666666666666666

And of course round it, and in this case to the hundreth place

66.66

3 0
1 year ago
The chamber of commerce of a Florida Gulf Coast community advertises that area residential property is available at a mean cost
Alja [10]

Answer:

a) In the step-by-step explanation.

b)  The null and alternative hypothesis are:

H_0: \mu=125000\\\\H_a:\mu> 125000

c) P-value = 0.015

d) The conclusion, at a level of significance of 0.05, is that there is enough evidence to support the claim that that area residential property is available at a mean cost significantly higher than $125,000 per lot.

e) The claim of the chamber of commerce is false. We have statistical evidence against that claim and we can conclude that the mean prices are significantly higher than $125,000.

Step-by-step explanation:

This is a hypothesis test for the population mean.

The claim, expressed in the alternative hypothesis, is that area residential property is available at a mean cost significantly higher than $125,000 per lot.

Then, the null and alternative hypothesis are:

H_0: \mu=125000\\\\H_a:\mu> 125000

The significance level is 0.05.

The sample has a size n=32.

The sample mean is M=130000.

As the standard deviation of the population is not known, we estimate it with the sample standard deviation, that has a value of s=12500.

The estimated standard error of the mean is computed using the formula:

s_M=\dfrac{s}{\sqrt{n}}=\dfrac{12500}{\sqrt{32}}=2209.71

Then, we can calculate the t-statistic as:

t=\dfrac{M-\mu}{s/\sqrt{n}}=\dfrac{130000-125000}{2209.71}=\dfrac{5000}{2209.71}=2.26

The degrees of freedom for this sample size are:

df=n-1=32-1=31

This test is a right-tailed test, with 31 degrees of freedom and t=2.26, so the P-value for this test is calculated as (using a t-table):

\text{P-value}=P(t>2.26)=0.015

As the P-value (0.015) is smaller than the significance level (0.05), the effect is  significant.

The null hypothesis is rejected.

There is enough evidence to support the claim that that area residential property is available at a mean cost significantly higher than $125,000 per lot.

6 0
3 years ago
• footballs – There are 8 footballs.
inna [77]

Answer:

8 futballs

basketballs 18

beisballs 36

softballs 24

Step-by-step explanation:

dos mas del doble (2) de balones de fut = 8x2 = 16, 16+2 = 18

cuatro menos de 5 veces las pelotas de fut = 8x5 = 40, 40-4 = 36

seis mas de la mitad de beis = 36/2 = 18, 18+6 = 24

LISTO

7 0
2 years ago
Sketch the region enclosed by x^2+y^2=6 and x+y=0. decide whether to integrate with respect to x or y. then find the area of the
kondor19780726 [428]
It's 3 beacause you add all of them together to get 0
4 0
3 years ago
CAN SOME ONE HELP PLZZZZZZZ IF YOU DONT KNOW THO PLZZ DONT ANSWER IM ONLY CHOIS BRAINLEST IF YOU SAY WHY YOU CHOSE THAT ANSWER T
Vinil7 [7]
Nahhhhhhh i don’t man sorry though bro this is though like buttocks on a stick XDXDXD
5 0
2 years ago
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