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eimsori [14]
3 years ago
11

50 POINTS pleaseee help its URGENT!!!! Ill give brainlist and if there all right i might send u 20 dollars!!! Pleasee help me!!

Mathematics
1 answer:
Sonbull [250]3 years ago
8 0

Answer:

A. 22°

E. 15

I. 39°

F. 71°

C. 25.6

H.12.9

K.55°

Step by Step Explanation:

1. cos^{-1}(52/56)=21.7867893 or 22 degrees

2. 22sin43=15

3. tan^{-1}(34/42) or 38.990999404 or 39 degrees

4. sin^{-1}(51/54)=70.81186355 or 71 degrees

5. 20/(tan38)=25.58883264 or 25.6

6. 20sin40=12.85575219 or 12.9

7. cos^{-1}(26/45)=54.70560532 or55 degrees

Hope that helps!:)

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olasank [31]

hope it helps u...

plz mark as brainliest...

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3 years ago
1.8(b - 5.3) - 4.2=5.8(b -2.3. What is the value of b​
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b= -0.1

Step-by-step explanation:

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3 years ago
Which figure best demonstrates the setup for the box method of finding the area of a triangle
Ivanshal [37]
Hi there! The third option shows us the best setup.

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To be able to fill in this formula, we need to have a base and a height. We can't easily find a triangle with given base and height, so we must look for another option.

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3 years ago
Read 2 more answers
Identify an equation that models the situation and find its solution. Kane planned to build a 53-centimeter-tall model of a buil
alex41 [277]

Answer:

The increment in the model is 106cm

Step-by-step explanation:

Given

Initial\ Height = 53cm

Final\ Height = 159cm

Required

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To do this, we simply subtract the initial height of the building from the final height

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7 0
3 years ago
Please help me with this question!!!!!
Naddika [18.5K]

Answer:

7/25

Step-by-step explanation:

θ lies in quadrant ii

so 2θ lies in quadrant iv

csc θ=5/3

sin θ=3/5 (sin θ=1/csc θ)

[cos(α+β)=cosαcosβ-sinαsinβ]

cos (2θ)=cos(θ+θ)=cos θ cos θ-sin θ sin θ=cos² θ-sin ²θ=1-sin²θ-sin²θ=1-2sin²θ

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=(25-18)/25

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3 years ago
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