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3 years ago

Hii i need to turn this assignment in but i need help

Mathematics

1 answer:

Troyanec [42]3 years ago

6 0

Answer:

1. 53

2. 43

Step-by-step explanation:

1. If angle A and B are supplementary that means they add up to 180 degrees. So 180-127= 53.

2. If angle A and B are complementary that means they add up to 90 degrees. So 90-47= 43.

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Graph the equation to solve the system y=2x-3 y=x+6

Aleksandr-060686 [28]

Y = x + 6
y = -3x + 6
put the system of linear equations into standard form
x - y = -6
-3x - y = -6
solution:
x = 0
y = 6

5 0

3 years ago

The following data reflect the number of customers who return merchandise for a refund on Monday. Note these data reflect the po

garri49 [273]

Answer:

The standard deviation of given data is 12.36

Step-by-step explanation:

We are given the following data in the question:

40, 12, 17, 25, 9, 46, 13, 22, 16,7

Formula:

$\text{Standard Deviation} = \sqrt{\displaystyle\frac{\sum (x_i -\bar{x})^2}{n}}$

where $x_i$ are data points, $\bar{x}$ is the mean and n is the number of observations.

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{207}{10} = 20.7$

Sum of squares of differences =

372.49 + 75.69 + 13.69 + 18.49 + 136.89 + 640.09 + 59.29 + 1.69 + 22.09 + 187.69 = 1528.1

$\sigma = \sqrt{\dfrac{1528.1}{10}} = 12.36$

Thus, the standard deviation of given data is 12.36

8 0

3 years ago

Find the solution set of the system of linear equations represented by the augmented matrix. (if there is no solution, enter no

USPshnik [31]

There is no system of equations to solve for

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4 years ago

11=6 plus k divided by 3

tatyana61 [14]

Answer:

a.15

Step-by-step explanation:

11=6+k/3

subtract 6

11-6=k/3

5=k/3

multiply by 3/1 (basically just opposite of 1/3)

15=k

if you like this answer I would really appreciate you making me brainliest, I'm trying to get a higher rank thx :)

7 0

3 years ago

Read 2 more answers

Solve the following inequality: |x – 4|> 6

Hoochie [10]

Answer:

x>10 or x< -2

Step-by-step explanation:

There are two solutions, one positive and one negative, remembering to flip the inequality for the negative

x-4 >6 or x-4 < -6

Add 4 to each side

x-4+4 > 6+4 or x-4+4 < -6+4

x>10 or x< -2

4 0

3 years ago