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2 years ago

What are the measures of center for a data set?

Mathematics

1 answer:

Savatey [412]2 years ago

4 0

Mean, Median, and Mode

Mean - Add all the numbers then divide by the number of numbers you added.

Median - The center of a set of numbers. (In a, b, c, d - b+c/2 is the median.)

Mode - The number that appears the most in a set of numbers.

They are called measures of center because they are statistics that describe the center of a set of data.

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HELP, Prove: (cos(x))/(sin(x)tan(x))=cot^2x

Mice21 [21]

Answer:

Steps shown below

Step-by-step explanation:

We will simplify this using definitions and identities. Let's start.

$\frac{cos(x)}{sin(x)tan(x)}$

Using $tanx=\frac{sinx}{cosx}$ , we have:

$\frac{cos(x)}{sin(x)\frac{sin(x)}{cos(x)}}\\=\frac{cos^2(x)}{sin^2(x)}$

Using $cot(x)=\frac{cos(x)}{sin(x)}$ , we have:

$\frac{cos^2(x)}{sin^2(x)}\\=cot^2(x)$

Hence, proved.

7 0

3 years ago

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If four times a number plus 3 is 11, what is the number? a. 4 bm 2 c. 16 d. 5

goblinko [34]

Answer:

B. 2 (Second Option)

Step-by-step explanation:

Four times: ⇒ 4

Number:⇒ y

4y+3=11

Subtract by 3 both sides of equation.

4y+3-3=11-3

Simplify.

11-3=8

4y=8

Divide by 4 both sides of equation.

4y/4=8/4

SImplify, to find the answer.

8/4=2

y=2 is the correct answer.

2 is the correct answer.

6 0

3 years ago

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Triangle MNP is graphed on a coordinate grid with vertices at M(12, -6), N(3, 3) and P(-6,12). Triangle MNP is dilated by a scal

77julia77 [94]

Oof that’s a hard question i dunno ask somose

4 0

3 years ago

HELP PLEASEEEE Lots of points

MArishka [77]

Answer:

-4, 2, 3

Step-by-step explanation:

Centre: (-4,2)

Radius: 3

(x - -4)² + (y - 2)² = 3²

7 0

3 years ago

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Which constants could each equation be multiplied by to eliminate the x-variable using addition in this system of equations? 2x+

Elden [556K]

Answer:

The first equation can be multiplied by 3 and the second equation by 2.

Step-by-step explanation:

Given

$2x+3y=25$

$-3x + y=22$

Required

How to eliminate x

To eliminate x using addition, we have to do the following;

1. Take the coefficient of x in equation 1; Coefficient = 2

2. Take the coefficient of x in equation 2; Coefficient = -3

3. Multiply equation 1 by 3

$3(2x + 3y = 25)$

$6x +9y = 75$

4. Multiply equation 2 by 2

$2(-3x + y = 22)$

$-6x + 2y = 44$

5. Add both resulting equations

$6x +9y = 75$ + $-6x + 2y = 44$

$6x - 6x + 9y + 2y = 75 + 44$

$11y = 75 + 44$

Notice that x has been eliminated;

4 0

3 years ago

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