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2 years ago

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

Read 2 more answers

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:

1.x=√(15²-12²)=√81=9

2.x=√(6²+6²)=6√2

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

both legs =5√2

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:

4.2 hours

Step-by-step explanation:

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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

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

$5x+2=3x+42$

$5x-3x=42-2$

$2x=40$

$\frac{2x}{2} =\frac{40}{2}$

$x=20 \\$

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

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

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