All categories

3 years ago

What is the median of the data set? 15, 19, 20, 22, 26, 30, 31

Mathematics

1 answer:

Paladinen [302]3 years ago

7 0

Answer:

C. 22

Step-by-step explanation:

The median is the middle number of the set if the numbers are in order from least to greatest.

This set of numbers is in order, so the median is the middle number = 22

You might be interested in

The sum of 6 consecutive integers is 519. What is the third number in this sequence?

garri49 [273]

The third integer is 86, hope this helps :)

8 0

4 years ago

Read 2 more answers

Write an equation for the following and then solve.<br> Twice a number is 8. Find the number.

Yakvenalex [24]

Answer:

The number u are looking for is 4

Step-by-step explanation:

Let X be the unknown number that we want to find.

So it becomes,

2X = 8

move 2 to the other side, so it becomes a divide

X = 8/2

X = 4

6 0

3 years ago

How does a number line help you compare numbers.

Hitman42 [59]

It shows you the exact distance from each number and it's easier to find out how far apart they are.

8 0

3 years ago

Read 2 more answers

Point: (-3, 7); Slope: 4

GaryK [48]

Answer:

y - 7 = 4(x + 3)

Step-by-step explanation:

Write the equation of a line using the point slope formula. Substitute m = 4 and the point (-3,7) in the formula.

$y - y_1 = m(x-x_1)\\y - 7 = 4(x--3)\\y - 7 = 4(x+3)$

6 0

3 years ago

Prove that

Dovator [93]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identities

secx = $\frac{1}{cosx}$ , cosecx = $\frac{1}{sinx}$

cotx = $\frac{cosx}{sinx}$ , tanx = $\frac{sinx}{cosx}$

Consider the left side

secA cosecA - cotA

= $\frac{1}{cosA}$ × $\frac{1}{sinA}$ - $\frac{cosA}{sinA}$

= $\frac{1}{cosAsinA}$ - $\frac{cosA}{sinA}$

= $\frac{1-cos^2A}{cosAsinA}$

= $\frac{sin^2A}{cosAsinA}$ ( cancel sinA on numerator/ denominator )

= $\frac{sinA}{cosA}$

= tanA = right side ⇒ proven

5 0

3 years ago