3 years ago

Find the arc length of the partial circle.

Mathematics

1 answer:

Len [333]3 years ago

6 0

Answer:

4.71

Step-by-step explanation:

Arc length = 2*pi*r-(pi*r)/2

Arc length = 3*2*(3.14)/4 = 4.71

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Which equation is rewritten in vertex form?

Zinaida [17]

(x + 3)^2 + (x + 4)^2
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Its B

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the average of three numbers is x if the first number is y and the second number is z what is the third number

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The third number will be 3x - y - z

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There are 28 students in a class. 13 of the students are boys. Two students from the class are chosen at random. a) If the first

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Step-by-step explanation:

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2 years ago

Can you help me with this question I rlly need it rn and please use the options it gives you thank you<3

Jet001 [13]

Answer: Choice C

Closed filled in circle at -3; shading to the right.

========================================================

Explanation:

Follow the steps shown below to isolate x. Note that the inequality sign flips when we divide both sides by a negative number.

$-4x+8 \le 20\\\\-4x \le 20-8\\\\-4x \le 12\\\\x \ge 12/(-4)\\\\x \ge -3\\\\$

Here's another way to isolate x

$-4x+8 \le 20\\\\8 \le 20+4x\\\\4x+20 \ge 8\\\\4x \ge 8-20\\\\4x \ge -12\\\\x \ge -12/4\\\\x \ge -3\\\\$

The inequality sign flip happens much earlier when we go from the format of $A \le B$ to $B \ge A$ (in step 3)

The graph of this will have a closed filled in circle at -3, then shading to the right to describe all values -3 or larger.

This is why we go for choice C.

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