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Nataly [62]
3 years ago
7

Don’t understand. I’ve tried to do it and I need some help please.

Mathematics
2 answers:
Novay_Z [31]3 years ago
8 0
You need to use trigonometry
1. Tan37=x/2.1
1.58=x
Irina18 [472]3 years ago
7 0
Remark
It is a calculator problem. All you have to do is make sure your calculator is set to degrees. 

Definition
The Tangent is defined as

Tan(A) = opposite side / adjacent Side

Givens
A = 37°
adjacent = 2.1
opposite = ???

Sub and solve
Tan (37) = 0.75335
0.75335 = x / 2.1 Multiply both sides by 2.1
2.1 * 0.75335 = x
x = 1.58246  <<<<< answer

NOTE NOTE NOTE NOTE NOTE: NO DECIMAL. 
If there is no decimal between the 2 and the 1 in 2.1 then the answer is
15.246 No Decimal <<<<< ANSWER.
 
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I'll just factor the above equation.

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can be:
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8 x 10  Correct pair

(x+8)(x+10)
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x = -8

(-8)² + 18(-8) + 80 = 0
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I think the algebra tiles will not be a good tool to use to factor the quadratic equation because the equation is not a perfect square quadratic equation.
4 0
3 years ago
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What is 6÷2(2+1)? explain how did you get the answer
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Answer:

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8 0
4 years ago
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In the game of​ roulette, a player can place a ​$4 bet on the number 29 and have a 1/38 probability of winning. If the metal bal
creativ13 [48]

Answer:

The expected value of the game to the player is -$0.2105 and the expected loss if played the game 1000 times is -$210.5.

Step-by-step explanation:

Consider the provided information.

It is given that if ball lands on 29 players will get $140 otherwise casino will takes $4.

The probability of winning is 1/38. So, the probability of loss is 37/38.

Now, find the expected value of the game to the player as shown:

E(x)=(140)\times \frac{1}{38}+(-4)\times \frac{37}{38}

E(x)=\frac{140-148}{38}

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Hence, the expected value of the game to the player is -$0.2105.

Now find the expect to loss if played the game 1000 times.

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Therefore, the expected loss if played the game 1000 times is -$210.5.

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4 years ago
. Parallelogram ABCD,
anastassius [24]
Diagram not attached, please add the question.
8 0
3 years ago
A triangle has a perimeter of 31. The longest side is equal to 12. The difference of the other two is 3. What is length of the s
xenn [34]

Answer:

8

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The perimeter is the sum of the 3 sides of the triangle.

let the other 2 sides be x and x - 3 , then

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with shortest side 8

3 0
3 years ago
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