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Nataly [62]
3 years ago
13

Triangle ABC is a right triangle and cos(22.6o)=B/13. Solve for b and round to the nearest whole number.

Mathematics
2 answers:
vitfil [10]3 years ago
4 0

The cosine of an angle is equal to the adjacent side divided by the hypotenuse. In a right triangle, the hypotenuse is the longest side. Its value is 13. It also follows that B is the adjacent side.

To solve for B,

B = 13 cos 22.6˚ = 12

The tangent of the angle is equal to the opposite side divided by the adjacent side. Since B is known, therefore the answer is

tan(22.6˚<span>) = a/12<span> </span></span>

Nadya [2.5K]3 years ago
4 0

The answer would be letter C- tan(22.6)=a/12

I hope this helps you all :))

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Neal decides to sell his concert tickets to a sold- out show. He paid 90$ for the pair but believes he can sell them for 150% of
Pie

Answer:

Neal thinks that he can sell the tickets for $135.

Step-by-step explanation:

Original price at which Neal bought the tickets = $90

If he expects to sell them at 150% of the original,

150% as a decimal = 150/100 = 1.5

the new resale price = 1.5* $90

                                   = $135

Therefore, Neal thinks that he can sell the tickets for $135.

5 0
3 years ago
Hello I need help on this math question<br>I'll give BRANLIEST or 5 stars​
vaieri [72.5K]

Answer:

lateral area=37.68(approximately 38)

Total Surface Area =

Step-by-step explanation:

AL=2πrh

AL=2×3.14×6/2×2(Because it is a diameter and we want a radius)

Al=37.68 in squared

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5 0
2 years ago
Determine whether each of these sets is countable oruncountable. For those that are countably infinite, exhibit
mezya [45]

Answer:

Answers are given below.

Step-by-step explanation:

a) one-to-one correspondence between the set of positiveintegers and that set.

Whenever we have one to one correspondence with positive integers, the set is countable and here infinite.

b) integers divisible by 5 and not 7 ..This set is all integers divisible by 5 but not by 7.  This is a discrete set and hence countable and infinite.

c) the real numbers with decimal representationsconsisting of all 1’s

-- This cannot be counted and hence uncountable but infinite.

d) the real numbers with decimal representationsconsisting of all 1’s or 9’s

-- This is also uncountable but infinite.

6 0
3 years ago
Rectangle has diagonal of 28 and forms a60 degree angle with the bases what are the side lengths
Anna71 [15]
Sine (28) = opposite / hypotenuse =
0.46947 = opposite / 28
opposite = 0.46947 * 28
<span><span><span>opposite side = 13.14516 </span> </span> </span>

cosine (28) = adjacent / hypotenuse =
0.88295 = adjacent / 28
adjacent = 28 * .88295
<span><span><span>adjacent side = 24.7226 </span>

Double Check

</span> </span> <span>13.14516^2 + 24.7226^2 = 28^2
</span>
<span> <span> <span> 172.7952314256  </span> </span> </span> + <span> <span> <span> 611.20695076 </span> </span> </span> = 784

<span> <span> <span> 784.0021821856 </span> </span> </span> = 784

Correct to 5 significant figures


7 0
3 years ago
Write 8.016 as a mixed number in simplest form.​
kolezko [41]

Answer:

1002 / 125

Step-by-step explanation:

4 0
3 years ago
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