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DiKsa [7]
3 years ago
9

Given that ∠3≅∠5 .

Mathematics
1 answer:
Pavel [41]3 years ago
3 0
Alternate interior angles theorem
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Solve for x, y, and z
zloy xaker [14]

Answer:

The solution is x=1,y=2,z=3

Step-by-step explanation:

The given system of equations is ;\

2x−3y+4z=8...(1)

3x+4y−5z=−4...(2)

4x−5y+6z=12...(3)

Make x the subject in equation (1)

x=\frac{8+3y-4z}{2}...(4)

Put equation (4) into equation (2) and (3)

3(\frac{8+3y-4z}{2})+4y-5z=-4

Multiply through by;

3(8+3y-4z)+8y-10z=-8

Expand;

24+9y-12z+8y-10z=-8

Simplify;

17y-22z=-32...(5)

Equation (4) in (3)

4(\frac{8+3y-4z}{2})-5y+6z=12

2(8+3y-4z)-5y+6z=12

16+6y-8z-5y+6z=12

y-2z=-4

y=2z-4...(6)

Put equation (6) into equation (5)

17(2z-4)-22z=-32

34z-68-22z=-32

34z-22z=-32+68

12z=36

z=3

Put z=3 into equation (6)

y=2(3)-4=2

Put y=2 and z=3 into equation 4

x=\frac{8+3(2)-4(3)}{2}=1

The solution is x=1,y=2,z=3

3 0
3 years ago
in 3000 repetitions of an experiment, a random event occurred in 500 acres. The expected probability of this event is?
scZoUnD [109]
Roughly in the 20% percentile.<span />
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3 years ago
The sum of two consecutive integers is − 17 -17. find the numbers
UkoKoshka [18]
I think it might be -76
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3 years ago
An item is regularly priced at
jekas [21]

85% = 0.85

1-0.85 = 0.15

80 x 0.15 = 12

the price now is $12

7 0
3 years ago
PLZ HELP 20 POINTS!<br><br> What is7√2 in simplest radical form?
shutvik [7]
9.8 I think... I hope this helps in any way
4 0
3 years ago
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