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2 years ago

In ΔABC, ∠A is a right angle. What is the value of y?

Mathematics

2 answers:

Bogdan [553]2 years ago

7 0

Y = 7sin(30) = 3.5
_________

alexdok [17]2 years ago

5 0

Sin 30=y/7
y=3.5ft
You would start with your sin equation ( Sin angle= opposite side over hypotenuse)since you are trying to find the Opposite side length. So you would have sin 30 equals y over 7. Then you multiply over 7 to both sides.Last find the value of sin 30( sin 30=.5) and multiply that by 7, your answer is 3.5ft

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Alex is installing wooden flooring in his room. The room is rectangular in shape with length of 12 feet and width of 10 feet.

Pepsi [2]

12 feet multiplied by 10 feet = 120 feet (This is the entire room size)
Then you take your $600 and divide it by your entire room size (120)
This will give you the amount per square foot.
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7 0

2 years ago

3/4 x 8/1 in the simplestform

nikklg [1K]

Answer:

Step-by-step explanation:

$\frac{3}{4}*\frac{8}{1} = \frac{24}{4} = \frac{6}{1} = 6$

3 0

1 year ago

Read 2 more answers

Solve equation. What is the solution set<br> -4(z-2)+4=21-(z-3)

inessss [21]

Answer:

z=-75/17

Step-by-step explanation:

Expand this equation:

-4z+8+4=-21z-63

-4z+21z=-63-8-4

17z=-75

z=-75/17

8 0

2 years ago

Joy bought 288 small pieces of candy to share with her friends. She divided the candy into 18 bags. One of the bags will be shar

mariarad [96]

Answer:

Step-by-step explanation:

You must divide 288 by 18 and then double the answer you get.

7 0

2 years ago

Which statement is true?

Nadusha1986 [10]

The correct statement is D.

Step-by-step explanation:

Given,

For backyard

Length = 5x-2

Width = 2x+4

For house

Length = 5x-2

Width = 4x-12

For driveway

Length = x+10

Width = 4x-12

To find the correct statement.

Formula

The area of a rectangle = Length × Width

So,

The area of the house and the driveway = (5x-2)(4x-12) + (x+10)(4x-12)

= (4x-12)(5x-2+x+10)

= (4x-12)(6x+8)

= $24x^{2} +32x-72x-96$

= $24x^{2} -40x-96$

So, the correct statement is D

You can cross check the other statements.

5 0

2 years ago