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Scrat [10]
2 years ago
11

Can someone help i don't understand this

Mathematics
1 answer:
Fantom [35]2 years ago
8 0
A) h = 2sqrt2 because for a 45-45-90 triangle both legs have the same measurement and to find the hypotenuse, you would multiply the leg by square root of 2.

b) d = sqrt3 because in order to find the short leg for a 30-60-90 triangle, you would need to divide your long leg by a square root of 3 (if you have the hypotenuse and wanted to find the short leg, divide the hypotenuse by 2).
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On a scale drawing with a scale of 1/20,the height of building is 8 inches how tall is the actual building in feet
kompoz [17]

Answer:

The actual building is 13.3 feet tall.

Step-by-step explanation:

Let the actual height be 'x'.

Given that on a scale drawing with a scale of 1/20, the height of the building is 8 inches, the expression becomes

(1/20) × x = 8

x = 20 × 8 = 160 inches

We know that

  • 1 foot = 12 inches

Thus,

160 inches = 160/12 ≈ 13.3 feet

Therefore, the actual building is 13.3 feet tall.

4 0
3 years ago
Read this scene from The Miracle Worker Act 2.
Likurg_2 [28]

Answer:

The stage directions describe how characters react to Helen.

Step-by-step explanation:

In the given scene, the different characteristics of Helen as well as how other characters react when they see Helen is depicted in the scene. Other characters in the scene react differently to Helen when they come in contact with her. This is the main objective of the stage direction. It shows the interaction between Helen and others.

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3 years ago
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How does this work hahahahaha
Leviafan [203]

Did you mean how does brainly work?

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3 years ago
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PLEASE ANSWER WILL GIVE POINTS!!!!!!!!!!!!!
Gennadij [26K]

Answer:

1) 27.374

2)9.177

Step-by-step explanation:

1) To get the value of x , we use the appropriate trigonometric ratio

From what we are given;

we have the hypotenuse ( the side facing the right angle) and the adjacent

The trigonometric identity to use here is the cos

The cos of an angle is the ratio of the adjacent to the hypotenuse

cos 64 = 12/x

x = 12/cos 64

x = 27.374

2) Here, we are given the hypotenuse and the opposite

The trigonometric ratio to use here is the sine

the sine of an angle is the ratio of the opposite to the hypotenuse

thus, we have it that;

sin 35 = x/16

x = 16 sin 35

x = 9.177

4 0
3 years ago
A class votes for their class President Kennedy receives 21 votes which is 6% of the vote what is the total number of students w
Katarina [22]

Answer:

21

Step-by-step explanation:

literally says it in the text ight

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3 years ago
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