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2 years ago

BE

Mathematics

1 answer:

cestrela7 [59]2 years ago

5 0

I don’t see the table necessary in order to solve this question

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QUESTION 6 What is the mean of the following set of data? Round your answer to two decimal places. 78, 82, 91, 100, 78, 92, 82,

guajiro [1.7K]

Mean is the average number. To find mean, add all the numbers and divide by how many numbers there are.

$78 + 82 + 91 + 100 + 78 + 92 + 82 + 77 + 80 = 760$

There are 9 numbers. Divide by 9

$760 \div 9 = 84.44$

Question 6 ⇒ C. 84.44

Median is the middle number when ordered from least to greatest. First order the numbers.

$4, 5, 6, 9, 10, 11, 12, 13, 15, 16$

The 2 middle numbers are 10 and 11. Add them together and divide by 2

$10 + 11 = 21 \\ 21 \div 2 = 10.5$

Question 7 ⇒ D. 10.5

8 0

3 years ago

Read 2 more answers

What is that answer to this question?

Hoochie [10]

Answer:

5/13

Step-by-step explanation:

Cosine ratio for an angle is defined as the ratio of Adjacent side to Hypotenuse.

We have to find the cosine ratio for angle F. The side adjacent to angle F is side GF and the hypotenuse of the triangle is side FH. The side opposite to the right angle is always the hypotenuse.

So, we can write:

$\textrm{Cosine Ratio}=\frac{Adjacent}{Hypotenuse}\\\\ \textrm{Cosine Ratio of F}=\frac{FG}{FH} \\\\ \textrm{Cosine Ratio of F}=\frac{5}{13}$

Therefore, the cosine ratio of angle F is 5/13

6 0

3 years ago

Read 2 more answers

2/3x-7 <br> The slope<br> The y intercept<br> Graph

mamaluj [8]

The slope is -7 and the y intercept is 2,3

3 0

3 years ago

1. Find the radius of Circle A. r-

777dan777 [17]

Answer:

A i think

Step-by-step explanation:

4 0

1 year ago

Negative 2 and two-thirds, negative 5 and one-third, negative 10 and two-thirds, negative 21 and one-third, negative 42 and two-

seraphim [82]

Answer:

$f(n) = -\frac{8}{3}n$

Step-by-step explanation:

Given

$-2\frac{2}{3}, -5\frac{1}{3}, -10\frac{2}{3}, -21\frac{1}{3}, -42\frac{2}{3}$

Required

The explicit formula

The above sequence is an arithmetic sequence and it is bounded by:

$f(n) = a + (n - 1)d$

Where

$a = -2\frac{2}{3}$ -- the first term

$d = f(2) -f(1)$

So, we have:

$d = -5\frac{1}{3} - -2\frac{2}{3}$

$d = -5\frac{1}{3} +2\frac{2}{3}$

Express as improper fraction

$d = -\frac{16}{3} +\frac{8}{3}$

Take LCM

$d = \frac{-16+8}{3}$

$d = -\frac{8}{3}$

So, we have:

$f(n) = a + (n - 1)d$

$f(n) = -2\frac{2}{3} + (n - 1) * -\frac{8}{3}$

Express all fractions as improper

$f(n) = -\frac{8}{3} + (n - 1) * -\frac{8}{3}$

Open brackets

$f(n) = -\frac{8}{3} -\frac{8}{3}n +\frac{8}{3}$

Collect like terms

$f(n) = -\frac{8}{3}n +\frac{8}{3}-\frac{8}{3}$

$f(n) = -\frac{8}{3}n$

8 0

2 years ago