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3 years ago

Help me please! which bisects the chord?

Mathematics

1 answer:

8_murik_8 [283]3 years ago

6 0

Answer:

B. 3

Step-by-step explanation:

Since you are given that chord AB's length is 8 and is bisected by segment XC, that means segment BC's length is 4 and ∠XCB is a right angle. From there, we use Pythagorean Theorem to solve for length XC:

4² + b² = 5² (Or remember 3-4-5 makes a Pythagorean triple)

c = √(5²-4²)

c = 3

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Use π = 3 19. Calculate the area of a circle with diameter of 14cm

Ilia_Sergeevich [38]

Area of a circle = PI x r^2

you state pi = 3.19 ( it is usually 3.14, if it is a typo see below )

diameter = 14cm
r = 1/2 the diameter, so r = 7 cm

area = 3.19 x 7^2

area = 3.19 x 49 = 156.31 square cm

( if PI = 3.14, area = 3.14 * 49 = 153.86 square cm)

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3 years ago

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3 years ago

The marginal cost of drilling an oil well depends on the depth at which you are drilling; drilling becomes more expensive, per m

sukhopar [10]

Answer:

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Total cost of drilling is:

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3 years ago

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