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asambeis [7]
3 years ago
6

What is the measure of X? angles are not necessarily drawn to scale

Mathematics
1 answer:
Schach [20]3 years ago
5 0

Answer:

xº=71º

Step-by-step explanation:

Take the triangle BDH

Once the sum of interior angles of a triangle is 180º:

40º+31º+yº=180º

71º+yº=180º

yº=109º

Once yº and xº are supplementary angles (add up to 180º):

yº+xº=180º

109º+xº=180º

xº=71º

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Answer:

Step-by-step explanation:

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3 years ago
Rewrite using positive exponents 
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3 years ago
7x - 20 = 2x - 3(3x + 2)
kirill [66]

Answer:

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Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the average (arithmetic mean) of the first 90 measurements in a certain list of 92 measurements? (1) the average of the
marishachu [46]
The sum of all the measurements is just the average times the number.

\bar x = \frac{1}{n} \sum_{i=1}^n x_i

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So if the average of all 92 is 7 the sum of those is 92 \times 7

The average of the last two is 7.2 so their sum is 2 \times 7.2

That means the sum of the first 90 is 92 \times 7 - 2 \times 7.2

so the average of the first 90 is

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7 0
3 years ago
Amanda is planning a picnic and figures that 6 pounds of meat will serve 9 people. At the same rate, how many pounds of meat wil
attashe74 [19]

Answer:

72 pounds

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5 0
3 years ago
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