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FinnZ [79.3K]
3 years ago
9

Solve the system of equations using Gaussian elimination or Gauss-Jordan elimination. 2x + 6y = 6 3x + 9y = 9

Mathematics
1 answer:
Elan Coil [88]3 years ago
5 0
The answer is x=-3/40 :)
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Wegnerkolmp or someone who can explain this to me
netineya [11]

Answer:

m<CDE=66 degrees.

Step-by-step explanation:

(1) Extend the segment DC so it intersects with line BA. Call the intersection F.

(2) Consider triangle BCF. In here, we are given m<ABC=24 deg. Since m<BCD = 90 deg, we known that m<BCF = 90 deg. Knowing two angles in the triangle BCF lets us determine the rhird angle m<BFC = 180-90-24 = 66 deg.

(3) Because of the fact that AB || DE and the fact that line DF intersects AB and DE, the angles <BFC and <CDE are congruent. Therefore m<CDE=66 deg.


3 0
3 years ago
(05.04 MC) At a school carnival, the diameter of the mat of a trampoline is 16 feet and the diameter of its metal frame is 18 fe
xenn [34]

Answer:

Step-by-step explanation:

You're looking for the circumference here, which is the distance around the outside of a circle.  The formula is

C = πd or C = 2πr

Since we are given the diameter, we will use that one:

C = (3.14)(18) so

C = 56.5 feet

3 0
3 years ago
What is the value of Y
Keith_Richards [23]
76 degrees. Angle y is supplementary to angle “2x+20”.
4 0
3 years ago
What is 60 /−3 and how do you solve
SVETLANKA909090 [29]
The answer is -20 and you solve by putting it in the calculator
7 0
2 years ago
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What is 13,931 round by 10​
miv72 [106K]

Answer:

13,930

Step-by-step explanation:

hope this helps!

4 0
3 years ago
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