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3 years ago

Find the measure of each angle indicated. Show work.

Mathematics

1 answer:

kirza4 [7]3 years ago

3 0

Answer:

? = 109 degrees

Step-by-step explanation:

45 + 75 + _ = 180 ( look for vertical angles)

45 + 75 + 60 = 180

60 +79 + _ = 180 (look for a straight line that forms 180 degrees)

60 + 79 + 41 = 180

68 + 41 + _ = 180 (look for a triangle that adds up to 180)

68 + 41 + 71 =180

180 - 71 = 109 (look for a linear pair)

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3 years ago

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3 years ago

Two counters are selected at random from a bag containing 5 red counters and 3 blue counters.

azamat

Answer:

1.4

Step-by-step explanation:

Probability of selecting a red counter :

Number of red counter / total number of counters

5 / (5 + 3) = 5 /8 = 0.625

Probability of selecting a blue counter = 0.375

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6 0

3 years ago

Solve for x: X^2 = 4/16

Rainbow [258]

We know that

x = $\sqrt{\frac{4}{16}}$

So:

x = $\frac{2}{4}$

6 0

3 years ago

What is -0.8+1.4n=2+0.7n

Sergio [31]

Answer:

n=4

Step-by-step explanation:

To solve combine your like terms.

You can start by adding 0.8 to both sides and subtracting 0.7n from both sides.

$-0.8+1.4n=2+0.7n\\1.4n=2.8+0.7n\\0.7n=2.8$

Next, divide both sides by 0.7 to isolate for n.

$0.7n=2.8\\n=4$

6 0

3 years ago

Find the measure of each angle indicated. Show work.​

Find the measure of each angle indicated. Show work.