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solmaris [256]
2 years ago
7

Suppose that, based on a sample, the 95% confidence interval for the mean of a population is (25, 41). What was the mean of the

sample?
A.
31
B.
37
C.
33
D.
35
Mathematics
1 answer:
icang [17]2 years ago
7 0

Answer:

C. 33

Step-by-step explanation:

Sample mean is right in the centre of the interval

Sample mean:

(25+41)/2

66/2

33

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2 triangles are shown. The first triangle has side lengths 35, 20, and 20. The second triangle has side lengths x, 44, 44.
Ad libitum [116K]

The value of x is 77 cm which will make the triangles similar by SSS similarity theorem

Given length of the three sides of one triangle are  35 , 20 and 20

and length of the three sides of another triangle are  x, 44,44

We need to find the values of x by using SSS Similarity theorem

We know that triangles are are similar by side - side - side similarity creation and hence the sides are in the same ratio

As both the triangles are isosceles triangles

Therefore ,

x/35 = 44/20=44/20 (Using ratio)

Solving the equation we get

x=44*35/20

x= 77

Hence the value of x is 77cm

Learn more about similarity of triangles here brainly.com/question/14285697

#SPJ10

8 0
1 year ago
What is the area of Vivian’s garage door?
sergey [27]

The area  of Vivian’s garage door is 62.5 square feet

<h3>Area of composite shape.</h3>

The Vivian garage is made up of a trapezoid and a rectangle. The area of the door is expressed as;

Area = Area of rectangle + area of trapezoid

Area = (5 * 8) + 0.5(7 + 8)*3
Area= 40 +22.5
Area = 62.5 square feet

Hence the area  of Vivian’s garage door is 62.5 square feet

Learn more on composite shapes here: brainly.com/question/8370446

#SPJ1

3 0
1 year ago
Jacob earned 300 on an amount deposited into his bank account for 3 years at a 2% annual simple interest rate how much did Joe d
vampirchik [111]
Joe deposited 180.

300 x .02 x 3 = 180
3 0
2 years ago
What is the value of s in the equation 3 r equals 10 plus 5 s, when r equals 10? 4 8 100 200
alisha [4.7K]

Answer

<h2>4</h2>

Step-by-step explanation:

Given,

r = 10

Let's create an equation,

3r = 10 + 5s

plugging the value of r

3 \times 10 = 10 + 5s

Multiply the numbers

30 = 10 + 5s

Move 5s to L.H.S and change its sign

Similarly, Move 30 to R.H.S and change its sign.

- 5s = 10  - 30

Calculate

- 5s =  - 20

The difference sign ( - ) should be cancelled on both sides

5s = 20

Divide both sides of the equation by 5

\frac{5s}{2}  =  \frac{20}{5}

Calculate

s = 4

The value of s is 4.

Hope this helps..

Best regards!!

6 0
2 years ago
Read 2 more answers
Plz help I need help
suter [353]

Answer:

7q + 12

Step-by-step explanation:

simply arrange the given expressions into the traditional way of adding numbers like 1 + 1 but vertically like : 1

1 +

which is equivalent to

6q + 1 +

q + 11

______

7q + 12

why? because 6q plus q is equal to 7q and 1 + 11 is equal to 12

good day.

4 0
2 years ago
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