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Lana71 [14]
3 years ago
13

Please answer this as soon as possible.

Mathematics
1 answer:
Vlad [161]3 years ago
7 0
I’m pretty sure it’s b
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Help please! show work thanks
Andre45 [30]
Answers
b = 2.77 m
A = 43.0°
C = 111.1°

cosine law to find b

b^2 = a^2 + c^2 -2ac \cos B \\ \\
b = \sqrt{a^2 + c^2 -2ac \cos B} \\ \\
b = \sqrt{4.33^2 + 5.92^2 - 2(4.33)(5.92) \cos 25.9} \\
b = 2.7708\ m

b = 2.7708\ m

Find angle A with sine law

\displaystyle
\frac{\sin A}{a} = \frac{\sin B}{b} \\ \\
\sin A = \frac{a \sin B}{b} \\ \\
A = \sin^{-1} \left[ \frac{a \sin B}{b}  \right] \\ \\
A = \sin^{-1} \left[ \frac{4.33 \sin 25.9}{2.7708}  \right]  \\ \\
A = 43.0467020

Find C with angles in triangle sum to 180

A + B + C = 180
C = 180 - A - B
C = 180 - 43.0467020 - 25.9
C = 111.1
6 0
3 years ago
Do you capitalize "is" after "!"<br> "HELLO!" is blah
Naily [24]
No, you do not capitalize "is" after "!" unless you are forming a new and complete sentence. Do not capitilize: "Hello!" is okay to say. Capitilize: "Hello!" Is she okay, she has never greeted us before...
3 0
3 years ago
The number x is reduced by 25% and then halved
Maksim231197 [3]
Since it says the number  x , this means x represents a number , reduced by 25 means that this is most likely half of 25 so whats half of 25%?

well 5 * 5 = 25 , so here is your answer  = 5

8 0
3 years ago
What is the equation of a line, in general form, that passes through the point (1, -2) and has a slope of 1/3.
slavikrds [6]
Y=1/3x+c as 1/3 is the gradient/slope
Plug in the coordinates into the equation
-2= 1/3*(1) +c
C=-2-1/3
C=-7/3
Y= 1/3x-7/3
5 0
3 years ago
Read 2 more answers
True or false variable is a letter used in place of a number
VikaD [51]
Answer: TRUE!


Variables ARE letters used in place of numbers absolutely
5 0
3 years ago
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