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Alekssandra [29.7K]
3 years ago
9

Plz help with math thank you

Mathematics
1 answer:
Delicious77 [7]3 years ago
8 0

Answer:

Step-by-step explanation:

Law of Sines  recall   Sin(A) /a  = Sin(B) /b  

does the above make sense?

Next we need to find  the angle of A

notice that 16+75=91  :o

so angle A is only 89° ..(b/c all the way around then inside of a triangle is 180)  so this is NOT a right triangle but that's okay, b/c law of sines still works fine.

then we want to find length of line AB

and if 89 = A  then a = BC

and if  75 = B the  b = AB (note that in the given triangle this is angle C, i'm using B , b/c you can see the difference between capital B and  lower case b much easier than you can with C, & c  :/   )

capitals are the angles while lower case are the length of the sides

then

Sin(89) / 29 = Sin(75) / b

solve the parts that can be put into numbers or solve for 'b' first, that means isolate 'b' all by itself on one side of the equal sign .

0.034477 = 0.965925/ b

b = 0.965925 / 0.034477

b = 28.0165

b = 28.0 ( to the nearest 10th)

we have the parts to plug in now

Sin(75) /

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Points B, D, and F are midpoints if the sides of ACE. EC=38 and DF=16. Find AC
vekshin1

Answer:

AC=32 units.

Step by step explanation:

Given information: B, D, and F are midpoints if the sides of ΔACE, EC = 38 and DF = 16.

Consider the below figure attached with this question.

According to the midpoint theorem, if a line segments connecting two midpoints then the line is parallel to the third side and it's length is half of the third side.

Since F and D are midpoints of AE and EC respectively.

Using midpoint theorem, the length of AC is twice of DF.

AC=2\times DF

Substitute the given values in the above equation.

AC=2\times 16

AC=32

Therefore, the length of AC is 32 units.

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Helen borrowed money from her aunt to pay for college expenses. The graph below shows the amount left
enot [183]

Answer:

y = -100x + 13000

Step-by-step explanation:

See attachment for graph

First, we need to take any corresponding values of x and y

(x_1,y_1) = (0,13000)

(x_2,y_2) = (130,0)

Next, we calculate the slope (m)

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