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Debora [2.8K]
2 years ago
13

30 points! Please help and explain the steps! I have to explain this in class. If you’re not sure don’t answer! Thank you!

Mathematics
1 answer:
Kitty [74]2 years ago
5 0

Answer:

m∠3 = 70°

Step-by-step explanation:

By the properties of a parallelogram,

- Opposite angles of a parallelogram are equal in measure.

- Adjacent angles of a parallelogram are supplementary angles.

m∠2 = m∠4 and m∠1 = m∠3

4x + 30 = 2x + 70

4x - 2x = 70 - 30

2x = 40

x = 20

Therefore, m∠2 = m∠4 = 110°

Since, m∠2 + m∠3 = 180°

110° + m∠3 = 180°

m∠3 = 180° - 110°

m∠3 = 70°

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Tanzania [10]
So basically the hypotenuse is the part of the triangle that connects the two sides that create the right angle
3 0
2 years ago
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I need help. this is due in less than 10 min and i have no clue how to solve. any tips appreciated
babymother [125]

Answers:

  • a) x = 9
  • b) arc JK = 68
  • c) arc MJ = 112
  • d) arc LMK = 248

================================

Explanation:

Arcs JK and KL form a semicircle, so they add to 180 degrees

(arcJK) + (arcKL) = 180

(5x+23) + (17x-41) = 180

22x-18 = 180

22x = 180+18

22x = 198

x = 198/22

x = 9

Then you'll use this x value to find arc JK and arc KL

arc JK = 5x+23 = 5*9+23 = 68

arc KL = 17x - 41 = 17*9-41 = 112

Since central angles MNJ and KNL are vertical angles, this means minor arcs MJ and KL are congruent arcs. So arc MJ is also 112 degrees

Arc LMK is basically nearly everything of the full circle, but we exclude out the portion from L to K (the shorter distance)

arc LMK = (full circle) - (measure of minor arc LK)

arc LMK = 360 - 112

arc LMK = 248

8 0
3 years ago
Help me with math please
slava [35]
Both of these lines share the relationship together of being parallel. 
3 0
3 years ago
13x+5y=90 what is x? what is y?
Leona [35]

Answer:

X=-5y/13+90/13, Y=-13x/5+18

Step-by-step explanation:

You need to solve the equation for X and Y.

Solving for X:

13x+5y=90

Subtract 5y: 13x=-5y+90

Divide by 13: x=-5y/13+90/13

--

For Y:

13x+5y=90

Subtract 13x: 5y=-13x+90

Divide by 5: y=-13x/5+90/5

(Simplifies to -13x/5+18)

3 0
3 years ago
Please help me with this, I'm timed right now and the assignment is due today soooooooo........ Please help. Ok, now to the ques
Ipatiy [6.2K]

The total number of people in the city surveyed by Annette= 480 people.

Step-by-step explanation:

Let 'X' be the Total Number of people Annette surveyed.

Out of Total people in the city, only <u>180 people are not interested</u> in a new shopping mall.

Therefore, it is given in the question that <u>180 is 37.5% of Total number of people surveyed (X).</u>

step 1: 180= (37.5/100)*(X)

step 2: X= (180*100)/37.5

step 3: X= 18000/37.5

step 4: X= 480

4 0
3 years ago
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