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3 years ago

What is the length of BC in the right triangle below?

Mathematics

1 answer:

telo118 [61]3 years ago

5 0

Answer:

The answer should be 15

Step-by-step explanation:

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Find the area of the sector of a circle with radius 2 inches formed by a central angle of 4.3 radians: (in square inches)

aleksandr82 [10.1K]

Answer:

8.6 in²

Step-by-step explanation:

The area of the entire circle is A = πr², or A = π(2 in)².

This corresponds to a central angle of 2π radians, or 6.28 radians.

The area of the sector described above is just a certain fraction of that:

4.3 rad

-------------- * Area of circle = 0.685(4 * 3.14) = 8.6 in²

6.28 rad

3 0

3 years ago

It takes Diego 1/24 of an hour to complete a lap on a circular bike track. The track is 1/3 milelong. What is Diego's bike speed

Anastasy [175]

Answer:

C. 8 miles per hour

Step-by-step explanation:

1/24th of an hour is 2.5 minutes, taking Diego 2.5 minutes to ride 1/3rd of a mile

2.5 x 3 (to signify how long it would take Diego to ride a mile) = 7.5 minutes

60 divided by 7.5 = 8

Therefore, Diego's speed in MPH is 8.

4 0

3 years ago

Pleaseeeeeeee helllppppppppppp

Sophie [7]

Answer:

Distributive property

Step-by-step explanation:

Think of Distributive property being a party. the host is outside of the house (the parenthesis) and wants to greet everyone at the party. so 2x3k=6k and 2x5=10. so you replace 2(3k+5) with 6k+10

7 0

3 years ago

The base of a pyramid is a rectangle with a width of 4.6 cm and a length of 9 cm. What is the height, in centimeters, of the pyr

Sauron [17]

Given:

Given that the base of a pyramid is a rectangle with a width of 4.6 cm and a length of 9 cm.

The volume of the pyramid is 82.8 cubic cm.

We need to determine the height of the pyramid.

Height of the pyramid:

The height of the pyramid can be determined using the formula,

$V=\frac{lwh}{3}$

Substituting the values, we get;

$82.8=\frac{9\times 4.6 \times h}{3}$

Multiplying both sides by 3, we get;

$248.4=41.4 \times h$

Dividing both sides by 41.4, we have;

$6=h$

Thus, the height of the rectangular pyramid is 6 cm.

Hence, Option A is the correct answer.

5 0

3 years ago

Is -14 a terminating decimal?

mr Goodwill [35]

Answer:

No it’s not

Step-by-step explanation:

5 0

3 years ago