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MArishka [77]
2 years ago
5

Can someone help me with all this?? i really dont get it ​

Mathematics
1 answer:
olga nikolaevna [1]2 years ago
8 0

Answer:

A=78

B=102

C=78

Step-by-step explanation:

A= a and 102 are on a straight line so they add up to 180. 180-102=78. The same goes for C

B= the vertical angle for 102, or the same thing with a and c, just flipped around

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X - y + y = <br> help plz plz helpppp
Amiraneli [1.4K]

Answer:

x - y + y =x is your answer hope it helps

Step-by-step explanation:

like terms can be add or subtract

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3 years ago
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Use the discriminant to determine the number and type of solutions the equation has.
White raven [17]
x^2 + 8x + 12 = 0\\ \\a=1 , b= 8, c= 12 \\ \\ \Delta =b^2-4ac = 8^2 -4\cdot1\cdot12= 64-48= 16\\ \\\Delta > 0 \\ \\ Answer : \ C. \ \ two \ rational \ solutions


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2 years ago
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WORTH 100 POINTS NEED DONE ASAP WRONG ANSWERS WILL BE REPORTED THANK YOUUU
zysi [14]

Answer:

3.

1.x=√(15²-12²)=√81=9

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3.c=√(√19²-√7²)=√(19-7)=√12

Step-by-step explanation:

4.h=10

a=b=x

we have

by using Pythagoras law

h²=x²+x²

100=2x²

x²=50

x=√50=5√2

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7 0
3 years ago
Two trains leave a train station at the same time. One travels north at 12 miles per hour. The other train travels south at 9 mi
svp [43]

Answer:

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Step-by-step explanation:

4 0
3 years ago
What is mKNL?<br> Enter your answer in the box.
sergejj [24]

Answer:

102°

Step-by-step explanation:

As the vertically opposite angles are equal,

5x+2={3(x+14)

Now let's solve for x now

5x+2=3(x+14)\\

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Now let's find the value of KNL

3(x+14)\\3(20+14)\\3*34\\102

Hope this helps you.

Let me know if you have any other questions ;-)

5 0
2 years ago
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