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kramer
2 years ago
14

jennifers, louis, robert, anna, and tonya are figuring out how to split the check for lunch. Thr total bill is $65.45. Anna puts

n 15 and tonya puts in 8
Mathematics
2 answers:
Dmitrij [34]2 years ago
7 0

Answer:

If Ann puts in $15 and Tonya puts in $8. Then the other should pay $14.15. If you divide it evenly between the five people then each person will pay $13.09

Step-by-step explanation:

Delicious77 [7]2 years ago
6 0

Answer:

the rest should pay 14.15 if not that they should each pay 13.09

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The circumference of my circle is 45 inches. What is the diameter
romanna [79]

Answer:

14.32 inches to nearest thousandth.

Step-by-step explanation:

Circumference = π * d        where d = the diameter.

So 45 = π * d

d = 45 / π

=  14.32 inches

8 0
3 years ago
Read 2 more answers
The null and alternate hypotheses are: H0: ????1 ???? ????2 H1: ????1 ???? ????2 A random sample of 15 observations from the fir
bija089 [108]

Answer:

t=\frac{(350-342)-0}{\sqrt{\frac{12^2}{15}+\frac{15^2}{17}}}}=1.674  

The degreess of freedom are given by:

df = 15+12-2 =25

Now we can calculate the p value with the following probability:

p_v =2*P(t_{25}>1.674)=0.107  

For this case since the p value is higher than the significance level we can FAIL to reject the null hypothesis and we can conclude that the true means are NOT significantly different at 10% of significance.

Step-by-step explanation:

Information provided

\bar X_{1}=350 represent the mean for sample 1  

\bar X_{2}=342 represent the mean for sample 2  

s_{1}=12 represent the sample standard deviation for 1  

s_{2}=15 represent the sample standard deviation for 2  

n_{1}=15 sample size for the group 2  

n_{2}=17 sample size for the group 2  

\alpha=0.1 Significance level provided

t would represent the statistic

Hypothesis to test

We want to verify if the true means for this case are significantly different, the system of hypothesis would be:  

Null hypothesis:\mu_{1}-\mu_{2}=0  

Alternative hypothesis:\mu_{1} - \mu_{2}\neq 0  

The statistic is given by:

t=\frac{(\bar X_{1}-\bar X_{2})-\Delta}{\sqrt{\frac{\sigma^2_{1}}{n_{1}}+\frac{\sigma^2_{2}}{n_{2}}}} (1)  

And the degrees of freedom are given by df=n_1 +n_2 -2=15+17-2=30  

Replacing the info given we got:

t=\frac{(350-342)-0}{\sqrt{\frac{12^2}{15}+\frac{15^2}{17}}}}=1.674  

The degreess of freedom are given by:

df = 15+12-2 =25

Now we can calculate the p value with the following probability:

p_v =2*P(t_{25}>1.674)=0.107  

For this case since the p value is higher than the significance level we can FAIL to reject the null hypothesis and we can conclude that the true means are NOT significantly different at 10% of significance.

5 0
2 years ago
(a + b)² = a² + 2ab + b2 with step by step explanation​
Dahasolnce [82]

Step-by-step explanation:

Given: (a+b)²

To prove: (a+b)² = a² + 2ab + b²

Proof:-

(a+b)² = (a+b)(a+b)

(a+b)²=a(a+b)+b(a+b)

(a+b)² = a²+ab+ab+b²

(a+b)² = a²+2ab+b².

3 0
3 years ago
The top portion of the Washington Monument is a square pyramid. The dimensions are shown in the net to the nearest foot.
HACTEHA [7]
5215 sq ft. S= p times h /2 +B
35*4 * 57/ 2. + 35*35
Got h=57 by a2+b2=c2
17.5 sq+ 55 sq =5215 sq rt of 5215 is 57
3 0
3 years ago
Read 2 more answers
•
Monica [59]
The vertical line that goes through the vortex
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