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Vsevolod [243]
3 years ago
8

PLZ HELP 100 PTS!!!!!!!!!!!!!!!

Mathematics
2 answers:
Volgvan3 years ago
8 0

the correct answer is

<ABC = 80°



EastWind [94]3 years ago
4 0

Answer:

<ABC = 80°


Step-by-step explanation:

find x first

<ABC = 1/2[(9x - 7) +(5x + 13)]

8x - 8 = 1/2(9x - 7 + 5x + 13)

16x - 16 = 14x + 6

2x = 22

 x = 11

Plug in x = 11 into 8x - 8

<ABC = 8(11) - 8

<ABC = 88 - 8

<ABC = 80°

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Which set of side lengths is a pythagorean triple
Neko [114]
Several examples of side lengths that are Pythagorean triples are the following with the corresponding side lengths A, B, C:

(5, 12, 13), (7, 24, 25), (3, 4, 5)

-E :)


4 0
3 years ago
WILL MARK YOU BRAINLIEST!!!!!!
My name is Ann [436]

Answer:

y = 88

Step-by-step explanation:

Don't worry about the other stuff, just worry about what's in the triangle that has Y.

53°, 39°, and y°

the sum should be equal to 180 so add 53 adn 39 and subtract it from 180.

180 - (53 + 39) = y

180 - 92 = y

88 = y

Hope this helped! Pls Brainliest my answer! It would help amd mean a lot! ;)

6 0
3 years ago
Find the value of i77.<br> A) 1 <br> B) i <br> C) −1 <br> D) −i
Colt1911 [192]

assuming you mean i^{77} where i=\sqrt{-1}

ok, notice a pattern in the exponent

i^1=i=\sqrt{-1}

i^2=-1

i^3=-\sqrt{-1}=-i

i^4=1

i^5=i=\sqrt{-1}

hum, so it goes 1,2,3,4, then repeats

ok, so every 4, the cycle repeats

how far  up is 77 from a multipule of 4?

4*19=76

76 is 1 away from 77

so i^{77}=(i^{76})(i^1)=

(i^4)^{19}(i)=(1)^{19}i=i

the answer is B

8 0
3 years ago
Read 2 more answers
27? Thanks and please have step to step
Studentka2010 [4]
I hope this helps you

5 0
3 years ago
Peter left his home in Chicago and drove to a town a few hours away. On the way there, he drove 40 mph due to traffic, but on th
Orlov [11]

Answer:

50 mph

Step-by-step explanation:

To calculate averages you add up all the items and divide by the total number of items there is.In this problem were 2 items so you divide it by 2

Add the two numbers

40+60=100

now just divide by 2 because there was 2 drives giving you 50 mph

Hope this helps!

:)

4 0
3 years ago
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