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dangina [55]
3 years ago
9

In this diagram, what is the value of b, correct to the nearest tenth?

Mathematics
1 answer:
tatuchka [14]3 years ago
4 0
We are given with two angles in which the side opposite to one angle is named while the other one is unknown. To find the unknown, we use sine law. The formula goes sin 29.16 / 3 = sin 54.33 / b; <span>b is equal to 5.0. The answer is D then </span>
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If an object that is 85 ft. long is represented on a scale drawing as a line 5 in. long, what is the scale used to make the draw
wolverine [178]
The answer is A.
85/5 is 17 and scales are unit rates. Also, process of elimination.
7 0
3 years ago
Nadia says the hypotenuse of the right triangle has a length of 73 because the Pythagorean theorem states that (28+45)squared eq
Setler79 [48]

Answer: Her solution is incorrect. The hypotenuse is 53 units

Step-by-step explanation: The error occurred when she quoted the Pythagorean theorem. She added up both sides and squared them and made the answer equal to the square of the hypotenuse. She was supposed to have squared them first, before adding up.

The Pythagorean (or Pythagoras) theorem states that the sum of the squares of two sides of a right angled triangle equals the square of the hypotenuse of the triangle. That is, in triangle ABC, if the hypotenuse is given as line AC, the Pythagoras theorem states that

AC^2 = AB^2 + BC^2

Where AC is the hypotenuse and AB and BC are the other two sides.

In Nadia’s solution, if the hypotenuse is given as 73, and the other two sides are 28 and 45, then the Pythagorean theorem properly expressed would be as follows;

73^2 = 28^2 + 45^2

5329 = 784 + 2025

5329 ≠ 2809

As we have determined, writing out the expression as

73^2 = (28 + 45)^2 is very incorrect as this is not the Pythagorean theorem and of course, the triangle cannot have 73 as its hypotenuse as we have determined by properly writing out the Pythagorean theorem.

The correct solution is as follows;

AC^2 = AB^2 + BC^2

AC^2 = 28^2 + 45^2

AC^2 = 784 + 2025

AC^2 = 2809

Add the square root sign to both sides of the equation

AC = 53

Therefore, the hypotenuse is 53 units

4 0
2 years ago
Read 2 more answers
what is the length and width of a parallelogram that is 60 meters and the width is 2 meters less than the length
AlladinOne [14]
The box is 5m long, 3m wide, 4m high
7 0
2 years ago
Simplify (-6)÷3<br><img src="https://tex.z-dn.net/?f=%28%20-%206%29%20%5Cdiv%203" id="TexFormula1" title="( - 6) \div 3" alt="(
muminat
Answer :2
100% correct
5 0
3 years ago
4 1/2 divided by 2 3/8
Yuki888 [10]
First you make them mixed numbers:
9/2 ÷ 19/8
Then you flip the second fraction around
9/2 ÷ 8/19
Then you change ÷ to ×
9/2 × 8/19
And then multiply across!
72/38 = 1 34/38 = 1 17/19 (the final answer)
Hope this helps!
3 0
3 years ago
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