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3 years ago

PLEASE IM BEGGING YOU

Mathematics

1 answer:

rodikova [14]3 years ago

5 0

Answer:b

Step-by-step explanation:

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I need help with this problem. Given: BC = 10 inches AC = √50 inches m∠CBD = 60° m∠CAD = 90° Calculate the exact area of the sha

Nikitich [7]

Answer:

Area of the shaded region = 23.33 in²

Step-by-step explanation:

Area of a sector = $\frac{\theta}{360}(\pi r^{2})$

Where θ = Central angle subtended by an arc

r = radius of the circle

Area of the sector BCD = $\frac{60}{360}(\pi) (10^{2})$

= 52.36 in²

Area of equilateral triangle BCD = $\frac{\sqrt{3} }{4}(\text{Side})^2$

= $\frac{\sqrt{3} }{4}(10)^2$

= $25\sqrt{3}$ in²

= 43.30 in²

Area of the shaded portion in ΔBCD = 52.36 - 43.3

= 9.06 in²

Area of sector CAD = $\frac{90}{360}(\pi)(\sqrt{50})^2$

= 39.27 in²

Area of right triangle CAD = $\frac{1}{2}(\text{Base})(\text{Height})$

= $\frac{1}{2}(\text{AC})(\text{AD})$

= $\frac{1}{2}(\sqrt{50})(\sqrt{50})$

= 25 in²

Area of the shaded part in the ΔACD = 39.27 - 25

= 14.27 in²

Area of the shaded part of the figure = 9.06 + 14.27

= 23.33 in²

8 0

3 years ago

An equilateral triangle has a perimeter of

Allushta [10]

Answer:

4y + 3

Step-by-step explanation:

An equilateral triangle has three sides of equal length.

The length of each side is 1/3 of the perimeter.

(12y + 9)/3 = 12y/3 + 9/3 = 4y + 3

Answer: 4y + 3

6 0

2 years ago

What is the answer to ...8.42 x 9

3241004551 [841]

Answer:

75.78

Step-by-step explanation:

8.42*9=75.78

6 0

3 years ago

Read 2 more answers

There are 6 boys and 9 girls in the church's youth group. What type of ratio is boys to girls

mina [271]

I hope this helps you

6/9

2.3/3.3

2/3

2:3

3 0

3 years ago

What is another way to write the expression t. (14--5) ?

melomori [17]

Answer: Second option.

Step-by-step explanation:

It is important to remember the Distributive Property in order to solve this exercise.

The Distributive property states that:

$a(b+c)=ab+ac\\\\\\a(b-c)=ab-ac$

In this case you have the following expression provided in the exercise:

$t(14-5)$

Then, in order to write this expression in another way, you can apply the Distributive property. Multiply each number inside the parentheses by "t".

Applying this procedure, you get:

$t(14-5)=(t14)-(t5)$

Notice that this expression matches with the one shown in the the second option.

8 0

3 years ago