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ipn [44]
2 years ago
8

Find the value of k. Then angle measures of 45 and 2k Sum of angle measures 180

Mathematics
1 answer:
My name is Ann [436]2 years ago
4 0

Answer:

67.5°

Step-by-step explanation:

180 -45 = 135

135 / 2

k= 67.5

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chubhunter [2.5K]
Plug in the value of -2 and -8

(-2)^2 - (-8) + 1

4 + 8 + 1 = 13
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Andreyy89

Answer:

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Step-by-step explanation:

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Determine whether the lines are perpendicular, parallel, or neither. Y=3x-5 and 12x+4y=8
Vadim26 [7]

Answer:

The two lines are neither perpendicular nor parallel to each other.

Step-by-step explanation:

Comparing the slopes of two lines is a great way for telling whether they are perpendicular or parallel to each other.

To find the slope of the lines, start by rewriting their equations in the slope-intercept form:

y = mx + b,

where

  • m is the slope of the line, and
  • b is the y-intercept (the y-value of the point where the line crosses the y-axis.)

The first line is already in this form. Its slope (the number in front of x) is equal to 3.

Subtract 12x from both sides of the equation of the second line:

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Divide both sides by four:

y = -3x + 2.

The slope of this line will be equal to (-3).

Two lines are parallel if their slopes are the same. They are perpendicular to each other if the product of their slope is equal to (-1) (i.e. the two slopes are inverse reciprocal of one another.) Neither is the case for these two lines. In conclusion, these two lines are neither parallel nor perpendicular to each other.

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3 years ago
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Marat540 [252]

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2 years ago
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OLga [1]

Answer:

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Step-by-step explanation:

Since the standard deviation = 0

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Cross multiply and make X the subject of formula

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The sum of the numbers will be 20

The number will be

1, 1, 1, 2, 2, 2, 2, 3, 3, 3

The sum of the above numbers is equal to 20 and the average value of the numbers is equal to 2.

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