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Komok [63]
3 years ago
9

I WILL GIVE BRAINLIEST TO WHO ANSWERS RIGHT!!! The measure of A is 100°. Angles A and B are supplementary. What is mB? A.mB = 10

° B.mB = 80° C.mB = 90°
D.mB = 180°
Mathematics
1 answer:
vova2212 [387]3 years ago
4 0

Answer:

B.  m∠B = 80°

Step-by-step explanation:

Supplementary angles are two angles that sum to 180°

⇒ m∠A + m∠B = 180°

⇒ 100° + m∠B = 180°

⇒ m∠B = 180° - 100°

⇒ m∠B = 80°

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Which are correct representations of the inequality –3(2x – 5) < 5(2 – x)? Select two options.
avanturin [10]

The correct simplified inequality is - 6x + 15 < 10 - 5x and the number line representation is "an open circle is at 5 and a bold line starts at 5 and is pointing to the right".

The given inequality is -3(2x - 5) < 5(2 - x)

We need to simplify the inequality.

<h3>What is inequality?</h3>

In mathematics, inequality is a statement of an order relationship greater than, greater than or equal to, less than, or less than or equal to between two numbers or algebraic expressions.

Consider LHS and simplify -3(2x - 5) = -3(2x)-5(-3)

⇒ -3(2x - 5) = - 6x + 15 [∵(-)(-) = (+)]

Consider RHS and simplify 5(2 - x) = 5(2) + 5(-x)

⇒5(2 - x) = 10 - 5x [∵(+)(-) = (-)]

Now, - 6x + 15 < 10 - 5x

By subtracting 15 from both sides, we get

- 6x < -5 - 5x

By adding 5x to both sides, we get - x < - 5

The coefficient of x is -1. So, divide both sides by -1

Then we get x > 5

Hence, the correct simplified inequality is - 6x + 15 < 10 - 5x and the number line representation is "an open circle is at 5 and a bold line starts at 5 and is pointing to the right".

To learn more about inequalities visit:

brainly.com/question/20383699.

#SPJ1

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2 years ago
Find tan 0 where 0 is the angle shown
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Because tan represents \frac{opposite}{adjacent} from θ (theta), the equation should be tan0=\frac{15}{x}. Let's leave this equation like that. Now, we need to find the unknown side length, x. We need to use Pythagorean Theorem, because we're given the other two side lengths. The equation should be x^{2}+15^{2}=17^{2}. X should equal ±8 or 8, because a side length can't be a negative value. Now, we can plug in 8 into the equation to get tan0=\frac{15}{8}.

3 0
3 years ago
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