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My name is Ann [436]
3 years ago
14

25 Points!!!!

Mathematics
1 answer:
o-na [289]3 years ago
3 0
You can prove that angle C is 30°. This is because we know that angle B is 120° also, and cointerior angles add to 180°, which makes angle BCF 60°. Then we can divide this by 2 as angle BCF is bisected by AC, so therefore angle ACF is 30° as 60 ÷ 2 = 30.

You can then prove angle A is 90°. First we can find angle BAC because it is part of a triangle, and angles in a triangle add to 180°. This means we can do 30 + 120 = 150, and 180 - 150 = 30° which is angle BAC. Then we do 120 - 30 = 90, as the whole of angle BAF is 120°.

I hope this helps!
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Help please show work
Romashka [77]

Answer:

Just subtract a tuig from the thung

Step-by-step explanation:

Heres an example

subtract 7 from 12 an you will get 5 for number 1 do that for the rest

8 0
3 years ago
5/6 (x - 1) = 4 what Is x
vfiekz [6]
5/6(x-1)=4
(x-1)=(4*6)/5
x-1=24/5
x=24/5  +  1
least common multiple=5
x=(24+1*5)/5
x=29/5

Answer: x=29/5

To check:

5/6(x-1)=5/6(29/5  -1)=5/6[(29-5)/5]=5/6(24/5)=(5*24)/(6*5)=120/30=4

6 0
3 years ago
Read 2 more answers
Last year Austin, Texas received 23.5 inches pf rainfall. This year Austin received 21.2 inches of rainfall. Find the percent of
Anna71 [15]
Percent decrease=decrease/original times 100
decrease=23.5-21.2=2.3
original=23.5

percent decrease=2.3/23.5 times 100=0.0978 times 100=9.8%

B is answer
7 0
3 years ago
Read 2 more answers
Which CANNOT be used to prove that lines in and n are parallel?
Misha Larkins [42]
C.24 is supplementary to 7
4 0
3 years ago
I’m stuck with this question :(
gayaneshka [121]

Answer:

The same number was not added to both sides.

Step-by-step explanation:

Given:

t - 8 = 65

in the next step it states something wrong, because it should have been this:

t - 8 = 65

add +8 left and right of the = sign.

t - 8 + 8 = 65 + 8

t + 0 = 73

t = 73

So the error made what's that

The same number was not added to both sides.

8 0
3 years ago
Read 2 more answers
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