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3 years ago

ASAP!!!!!!!!! PLEASE help me with this question! This is really urgent! No nonsense answers please.

Mathematics

1 answer:

Cloud [144]3 years ago

7 0

<h3>Answer: C) increase from 45 degrees to 50 degrees</h3>

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Explanation:

Let's calculate the angle B based off the arcs CDF and GHJ

B = (far arc - near arc)/2

B = (arc CDF - arc GHJ)/2

B = (130 - 40)/2

B = 90/2

B = 45

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Now let's change GHJ to 30 degrees, while keeping the other arc the same.

B = (far arc - near arc)/2

B = (arc CDF - arc GHJ)/2

B = (130 - 30)/2

B = 100/2

B = 50

Angle B has increased from 45 degrees to 50 degrees.

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Using the sine rule, calculate the length y. Give your answer to 2 s.f.

Tpy6a [65]

Answer:

y = 9.84 mm

Step-by-step explanation:

Law of sine:

$\sf \boxed{\bf \dfrac{a}{Sin \ A}=\dfrac{b}{Sin \ B}= \dfrac{c}{Sin \ C}}$

a = y

A = 31°

b = 17 mm

B = 117°

$\sf \dfrac{y}{Sin \ 31^\circ}=\dfrac{17}{Sin \ 117^\circ}\\\\$

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8 0

2 years ago

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Digiron [165]

Answer:

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Step-by-step explanation:

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3 years ago

If there are 5 green, 6 yellow, 8 blue, and 7 brown M&M's, what is the probability that you choose a blue?

Alex777 [14]

Answer:

the probability is 69/420

4 0

3 years ago

Read 2 more answers

50 POINTS PLS HELP!!!!

VARVARA [1.3K]

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$P(X\ge a)=P(X\le a)=0.50$