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mote1985 [20]
3 years ago
5

If a circle’s diameter is 3 inches, what would be the best estimate of its circumference? A) 3 inches B) 9.42 inches C) 10.42 in

ches D) 94.2 inches
Mathematics
2 answers:
iogann1982 [59]3 years ago
4 0
The answer would be approximately 9 inches but the real number is 9.42 So B is the answer. I hope this helped ^^
MA_775_DIABLO [31]3 years ago
3 0

Answer:

The correct answer is 9.42 inches. The circumference of a circle is figured by multiplying π or 3.14 by the diameter, so 3.14 x 3 = 9.42 inches.

Step-by-step explanation:

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4 0
3 years ago
Suppose ABC is a right triangle with sides​ a, b, and c and right angle at C. Find the unknown side length using the Pythagorean
Leno4ka [110]

Answer:

a = \sqrt{7}

Step-by-step explanation:

I think your question is missed of key information, allow me to add in and hope it will fit the original one.:

<em>Suppose ABC is a right triangle with sides​ a, b, and c and right angle at C. Find the unknown side length using the Pythagorean theorem and then find the values of the six trigonometric functions for angle B. when b=3 and c=4</em>.

My answer:

We will Pythagoras theorem, which states that the sum of squares of two legs of a right triangle is equal to the square of the hypotenuse of right triangle. Because the question says that ABC is a right triangle.

a^2+b^2=c^2

Given that: b=3 and c=4

a^2+3^2=4^2a^2+9=16a^2+9-9=16-9a^2=7

so a = \sqrt{7}

We know that tangent relates opposite side of a right triangle with adjacent side.

\text{tan}(B)=\frac{a}{b}\\\text{tan}(B)=\frac{\sqrt{7}}{3}

Please have a look at the attached photos.

3 0
4 years ago
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