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denpristay [2]
3 years ago
7

How do you find mid value x in a grouped table in statistics​

Mathematics
1 answer:
vlabodo [156]3 years ago
6 0

Step-by-step explanation:

mid \: value   \\ =  \frac{upper \: limit + lower \: limit}{2}  \\  \\ for \: example \\ for \: group \: 10 - 20 \\ mide \: value =  \frac{20 + 10}{2}  =  \frac{30}{2}  = 15

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Miranda and cyndi start hiking from the same point. miranda hikes at a heading of , or due west, and cyndi hikes at a heading of
igomit [66]

They are both 6.9 miles apart after one hour if they both hike 4 miles/hour

The correct option is (B)

<h3>What is the triangle?</h3>

In terms of geometry, the triangle is a three-sided polygon with three edges and three vertices. The triangle's interior angles add up to 180°.

<h3>According to the given information:</h3>

Miranda and Cyndi start hiking from the same point. Miranda hikes at a heading of 270° or due west, and Cyndi hikes at a heading of 30°

<h3>From the isosceles triangle:</h3>

h = 4sin30

h = 4(1/2)

h = 2 miles

<h3>From Pythagoras theorem:</h3>

x² = 4² - h² = 4² - 2²

x = √12

x = 3.46 miles

Total distance = 2×3.46  = 6.9 miles

Thus, they are both 6.9 miles apart after one hour if they both hike 4 miles/hour option (B) 6.9 miles is correct.

Learn more about the triangle here:

brainly.com/question/25813512

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I understand that the question you are looking for :

Miranda and Cyndi start hiking from the same point. Miranda hikes at a heading of , or due west, and Cyndi hikes at a heading of , or n e. if they both hike 4 miles/hour, approximately how far apart are they after one hour?

A) 4.3 miles. .

B) 6.9 miles

C) 8.0 miles

D) 5.7 miles

4 0
1 year ago
The distance a spring will stretch varies directly with how much weight is attached to the spring. If a spring stretches 6 inche
Iteru [2.4K]

The <em><u>correct answer</u></em> is:

C.4.1 in

Explanation:

We will use a proportion for this problem.

In the first ratio, we have 6 inches: 80 pounds.  This can also be written as 6/80.

For the second ratio, we do not know the length; this is x.  The weight is 55; this gives us x/55.

This makes our proportion

6/80 = x/55

Cross multiplying, we have

6(55) = 80(x)

330 = 80x

Divide both sides by 80:

330/80 = 80x/80

4.125 = x

This means the answer is 4.1.

6 0
3 years ago
Read 2 more answers
1.what is the sum or difference? 3x^8-7x^8<br>A.-4x^16<br>B. -21x^8<br>C. -4x^8<br>D. 10x^-8
Dafna1 [17]
To simplify the given equation, you want to combine like terms. Since both terms have x^8, we can add the coefficients and leave the x^8
3x^8-7x^8 (do 3-7)
=-4x^8 so the answer is C

Hope this helps
5 0
3 years ago
Read 2 more answers
A
NikAS [45]
Answer is choice C) 75

------------------------------------

Work Shown:

A1 = 3
A2 = 12+A1 = 12+3 = 15
A3 = 12+A2 = 12+15 = 27
A4 = 12+A3 = 12+27 = 39
A5 = 12+A4 = 12+39 = 51
A6 = 12+A5 = 12+51 = 63
A7 = 12+A6 = 12+63 = 75

5 0
3 years ago
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J^2+5• 10<br> if j=2,the value of the following expression is 90.
Serhud [2]

Answer:

j^2+50

Step-by-step explanation:

6 0
3 years ago
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