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3 years ago

BC Round your answer to the nearest hundredth. А 50° ? 3 B

Mathematics

2 answers:

marysya [2.9K]3 years ago

7 0

Answer: BC = 2.30

Step-by-step explanation:

BC = 3sin50

BC = 2.2981333...

BC = 2.30

emmasim [6.3K]3 years ago

6 0

Use the sine function.

sine = opposite side of triangle divided by the hypotenuse.

Here is the set up:

sin(50°) = BC/3

sin(50°)/3 = BC

Use your calculator to simply left side.

Take it from here.

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The interest that cindy earns on her investment is given by the equation /=42t where t is the time in years that her money is in

Len [333]

Answer:

Equation is 42t

So,

t=12

According to equation

Put value of t

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So 2nd option is correct.

5 0

3 years ago

20 out of 50 rolls of a number cube resulted in a 2 being rolled.Based on this imformation, if the cube was rolled 220 times,how

jolli1 [7]

Answer:

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Step-by-step explanation:

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3 years ago

True or False Plane KLM and Plane NQR are parallel planes

Nana76 [90]

Answer:

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Step-by-step explanation:

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3 years ago

Order of operations what should be done first to evaluate 6+ (-5-7) ÷ 2 -8(3)

Maru [420]

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3 0

3 years ago

The area of a trapezoid is 243cm2. The height is 18cm and the length of one of the parallel sides is 10cm. Find the length of th

Irina18 [472]

Answer:

$Side_2 = 17\ cm$

Step-by-step explanation:

Given

Shape: Trapezoid

$Area = 243cm^2$

$Height = 18cm$

$Side_1 = 10cm$

Required

Determine the length of the second parallel side

The area of a trapezoid is:

$Area = \frac{1}{2}(Side_1 + Side_2) * Height$

Substitute values for Area, Height and Side1

$243 = \frac{1}{2}(10 + Side_2) * 18$

Multiply both sides by 2

$2 * 243 = 2 * \frac{1}{2}(10 + Side_2) * 18$

$486 = (10 + Side_2) * 18$

Divide both sides by 18

$27 = 10 + Side_2$

$Side_2 = 27 - 10$

$Side_2 = 17\ cm$

Hence;

<em>The length of the second parallel side is 17cm</em>

8 0

3 years ago