3 years ago

What’s measure of angle C?

1 answer:

7 0

The angle is 60° because
B is a right angle and that adds to 90°, so dividing 90 by 3 would get 30

30 x 2 = 60

and to check the answer

x = 30

A=30
B=90
C=60

this adds to 180 which is correct because the angles in a triangle add to 180° :)

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At a certain high school, 35 students play only stringed instruments, 10 students play only brass instruments, and 5 students pl

Sophie [7]

Answer:

9/11

Step-by-step explanation:

Well we know there are 55 students in total and only 45 of them can either play a string or brass instrument.

So 45/55 is 9/11

Thus probably is 9/11 of a randomly selected student who plays either a string or brass.

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2 years ago

Hey pls help worth 30 points

GrogVix [38]

Step 1: Find the slope:

$m = \dfrac{y_2-y_1}{x_2-x_1} = \dfrac{10-6}{6-5} = \dfrac{4}{1} = 4$

Step 2: Set up your equation $y-y_1=m(x-x_1)$ using one of the points.

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Using (6,10) we have $y-10 = 4(x-6)$

Both of those equations would be correct.

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3 years ago

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Consider the series 4+8+16+32+... <br> What is the common ratio?

Amiraneli [1.4K]

The common ratio is 24 x 2 = 88 x 2 = 1616 x 2 =32
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7 0

3 years ago

The graph of y=f(x) is shown below. Draw the graph of y=-f(x)

valkas [14]

Answer:

y = -f(x): reflection over x axis

Step-by-step explanation:

y = -f(x): reflection over x axis

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2 years ago

Find the sum of a finite arithmetic sequence from n = 1 to n = 10, using the expression 3n − 8.

maw [93]

Answer:

The answer is 85

Step-by-step explanation:

The equation used to find the sum of an arithmetic series is: (n/2) * (a1 + an).

n in this case is 10 (the number of numbers in the series)

an is 22 (plug in 10 to the expression 3n-8)

and a1 is -5 (plug in 1 to the expression 3n-8)

so when you plug everything in to the final equation, you get

(10/2) * (-5 + 22)

5 * 17

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3 years ago