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3 years ago

Help me from 6-9 (geometry)

Mathematics

1 answer:

elena55 [62]3 years ago

8 0

Answer:

6) Two angles are called supplementary when their measures add up to 180 degrees. For example, two right angles are supplementary angles.

7) When the sum of two angles is equal to 90 degrees, they are called complementary angles. For example, 30 degrees and 60 degrees are complementary angles.

8) you have to plot the points on the graph and draw a line and label it with L at one point and M at another point.

9) x = 20

m < A = 65

m < B = 25

Step-by-step explanation:

3x + 5 + 2x - 15 = 90

3x + 2x + 5 - 15 = 90

5x - 10 = 90

5x - 10 + 10 = 90 + 10

5x = 100

5 / 5x = 100 / 5

x = 20

A = 3x + 5

A = 3(20) + 5

A = 60 + 5

A = 65

B = 2x - 15

B = 2(20) - 15

B = 40 - 15

B = 25

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Find the mean.<br> 20, 5, 45, 90, 60, 45, 30, 10, 20, 45, 15,25

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$\huge\textsf{Hey there!}$

$\bullet \large\textsf{ Finding the mean you have to add up all of your numbers \& divide it}\\\large\textsf{by the total numbers in your data plot}$

$\mathsf{\dfrac{20 + 5 + 45 + 90 + 60 + 45 + 30 + 10 + 20+ 45 + 15 + 25}{12}}$

$\mathsf{20 + 5 + 45 + 90 + 60 + 45 + 30 + 10 + 20+ 45 + 15 + 25}$

$\mathsf{= 25 + 45 + 90 + 60 + 45 + 30 + 10 + 20 + 45 + 15 + 25}$

$\mathsf{= 70 + 90 + 60 + 45 + 30 + 10 + 20 + 45 + 15 + 25}$

$\mathsf{= 160 + 60 + 45 + 30 + 10 + 20 + 45 + 15 + 25}$

$\mathsf{= 220 + 45 + 30 + 10 + 20 + 45 + 15 + 25}$

$\mathsf{= 265 + 30 + 10 + 20 + 45 + 15 + 25}$

$\mathsf{= 295 + 10 + 20 + 45 + 15 + 25}$

$\mathsf{= 305 + 20 + 45 + 15 + 25}$

$\mathsf{= 325 + 45 + 15 + 25}$

$\mathsf{= 370 + 15 + 25}$

$\mathsf{= 385 + 25}$

$\mathsf{= \bf 410}$

$\mathsf{= \dfrac{410}{12}}$

$\mathsf{\dfrac{410}{12} \approx \bf 34.1667}$

$\boxed{\boxed{\huge\textsf{Thus, your ANSWER is: \boxed{\mathsf{ \bf \underline{{\star 34.1667\star}}}}}}}}\huge\checkmark$

$\huge\textsf{Good luck on your assignment \& enjoy your day!}$

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Step-by-step explanation:

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