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iren [92.7K]
3 years ago
10

Can some please help me w this and explain it to me

Mathematics
2 answers:
wariber [46]3 years ago
5 0
2x+ x =180 degree( being co interior angle)
3x =180
x=180/3
x=60 degree
Here ,
Angle BCD=2x
=2*60
=120 degree
Rufina [12.5K]3 years ago
3 0
BCD= 120 degrees. explanation: the 4 angles of a parallelogram must equal 360 degrees. so you add all 4 angles & get 6x. you then take that 6 & divide it from 360 (360/6) and get 60. therefore x=60. so then you just multiple BCD (2x) by 60 and you get 120 degrees
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Which determinants can be used to solve for x and y in the system of linear equations below?
zlopas [31]

Answer:

The right answer is the first answer

Step-by-step explanation:

Look to the attached file

Download docx
3 0
3 years ago
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Solve the system of equations using subtraction. Equation 1: 3x-2y= -2 Equation 2: 3x + y = 10 The solution is (? ,?) HURRY PLEA
Art [367]

Answer:

the solution is x = 2 and y = 4 OR (2,4)

Step-by-step explanation:

From the question

Equation 1: 3x-2y= -2

Equation 2: 3x + y = 10

Subtract equation 1 from equation 2, that is

3x + y = 10 - (3x -2y = -2)

You get

3x - 3x + y - (-2y) = 10 - (-2)

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Substitute the value of y into equation 2 to get x

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3x + 4 = 10

Then,

3x = 10 - 4

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Divide both sides by 3

∴ x = 6/3

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Hence, the solution is x = 2 and y = 4

5 0
3 years ago
the maximum load of elevator is 480 pounds. Assuming that the average mass of student is 45 pounds, and m represents the number
yaroslaw [1]
We can use the equation 45m < 481

we can replace m to see where it caps.

and the cap is 10.

we can replace m to check our work

45(10) < 481

450 < 481

if you add another student, it would go over the limit.

hope this helps :D


7 0
3 years ago
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3 0
3 years ago
Can I get help on this question?
hram777 [196]

Answer:

The answer is 34 degrees

Step-by-step explanation:

as shown on the image angle SRT has an angle measure of 73, as also shown on the image angle STR has the same angle measure as angle SRT, because the sum of all o the angle measures of a triangle is always 180 we can add 73 + 73 we get a product of 146 then subtract 146 from 180 and we get an answer of 34.

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3 years ago
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