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stira [4]
2 years ago
10

Solve the following system by ELIMINATION. 6x + 10y= 16 2x + 20y= -28

Mathematics
2 answers:
Otrada [13]2 years ago
7 0
X = 6 , y = -2
hope this helps
Leya [2.2K]2 years ago
7 0

Answer:

I have made it in above picture

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Pls help me i will mark brainliest if you are right !
tekilochka [14]

Answer:

second option

Step-by-step explanation:

diameter= 22 cm

radius = diameter/2

=22/2

11 cm

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5 0
2 years ago
Someone please help??????
Evgesh-ka [11]

Answer:

a) x=15\\b) AD\ is\ not\ parallel\ tp BC

Step-by-step explanation:

As\ we\ know\ that,\\Angle\ D=3x\\Angle\ A=2x\\Angle\ B=90\\Angle\ C=x\\The\ Angle\ Sum\ Property\ Of\ A\ Quadrilateral\ states\ that\ the\ sum\ of\ all\\ the\ interior\ angles\ of\ a\ quadrilateral\ is\ 180.\\Hence,\\ \angle D+ \angle A + \angle B + \angle C=360\\3x+2x+90+x=180\\3x+2x+x=180-90\\6x=90\\x=15\\Hence, x=15

Hence,\\As\ Angle\ A\ and\ Angle\ B\ are\ co-interior\ angles, if\ they\ are\\ supplementary\ then\ AD \parallel BC.\ Lets\ check\ that\ out.\\Hence,\\Angle\ A=2x=2*15=30\\Angle\ B=90\ [Given]\\Hence,\\As\ 90+30\neq 180,\\Angle\ A +Angle\ B\neq 180\\Hence,\\As\ Angle\ A and\ Angle\ B\ are\ not\ supplementary,  AD\ will\ not\ be\ parallel\ to\ CB.

8 0
3 years ago
In the parallelogram below find why
Mkey [24]
Angle E=130degrees because those two are congruent. Therefore if you 180-130 you'll get the other angle in the triangle with 70degrees and y. 180-130=50degrees. Then add 50 and 70. 50+70=120degrees. A triangle is supposed to have 180 degrees inside.
180-120=60degrees.
Therefore y=60degrees
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2 years ago
What is the exact volume of the cylinder? 32π in³ 64π in³ 128π in³ 512π in³ Cylinder with radius labeled 4 inches and height lab
8_murik_8 [283]
The answer is 128 pi in^3. You have to multiply 4x4, then multiply that by 8 to get 128.
6 0
2 years ago
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