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mixer [17]
3 years ago
8

In ΔEFG, e = 4.7 inches, f = 4.8 inches and g=3.6 inches. Find the measure of ∠E to the nearest 10th of a degree.

Mathematics
1 answer:
AleksAgata [21]3 years ago
7 0

Answer:

66.3

Step-by-step explanation:

i just did it on deltamath

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3x+17+15x=7x+10 what is the solution to this
oksian1 [2.3K]

Answer:

i belive that x= -7

Step-by-step explanation:

.......

6 0
3 years ago
A) Construct a 95% confidence interval for the average test score for Delhi students. (1 Mark)
svetlana [45]

The solution to all the answers are given below.

The complete question includes

Grades on a standardized test are known to have a mean of 1,000 for students in the Delhi. 453

randomly selected Delhi students take the test, yielding sample mean of 1,013 and sample standard

deviation (s) of 108.

<h3>What is Confidence Interval ?</h3>

It is given by

Confidence Interval for 95% confidence Interval is given by

\rm Z = X \pm  1.96 \dfrac{\sigma}{\sqrt{n}}

(a) Construct a 95% confidence interval for the mean test score for Delhi students.

The confidence interval is given by

\rm 1,013 \pm  1.96 \dfrac{\sigma}{\sqrt{n}}

\rm 1,013 \pm  1.96 \dfrac{108}{\sqrt{453}}

1013 ± 5.07

so the interval is  [1003.06,1022.94]

(b)Yes, since the null of no difference is rejected at the 5% significance level (interval excludes Delhi sample mean of 1,013)

(c) Another 503 Delhi students are randomly selected to take a 3-hour prep course and then give the test. Their average score is 1,019 with a standard deviation of 95.

The standard deviation now is

\rm \sqrt{\dfrac{95^2}{453} + \dfrac{108^2}{503}}

= 6.61

The interval is given by

(1,019-1,013) \pm 1.96 \dfrac{\sigma}{\sqrt{n}}

= [-7,+19]

(d) No, the interval includes 0, the null difference between the two populations

To know more about Confidence Interval

brainly.com/question/24131141

#SPJ1

5 0
2 years ago
Please help I will give good points! Fake answers=report
poizon [28]

Answer:

159

Step-by-step explanation:

10^2+(3+5)^2-5

First do the parentheses: 3+5 is 8

Now the equation is

10^2+8^2-5

Exponents:

10^2 is 100

8^2 is 64

100+64-5

Simplify and you would get 159

Thus the answer is 159

Hope this helps!

4 0
2 years ago
Read 2 more answers
If you live in a rectangular city that is 1 mile along the southern border and contains 1000 people, what is the density of peop
Setler [38]

Answer:

The answer is B, which means the density is 1,000 people per square mile.

Step-by-step explanation:

This is true because there are 1,000 people on the one-mile-long southern border.

7 0
3 years ago
Describe a real-life representation of the following:<br> 12/49 (fraction)=0.24
BaLLatris [955]
You took a test in one of your classes and could get anything out of /49, you get your test back just in time to see 12/49 and realized you got an F
6 0
3 years ago
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