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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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Anyone please help me pleaseeee
lora16 [44]

R = { (x,y): 3x-y=0 }

The condition is 3x=y so that's not going to be any of these things.

R is reflexive if (x,x)∈R for all x.   Let's check.

3x - y = 3x - x = 2x ≠ 0  necessarily.   NOT REFLEXIVE

R is symmetric if (x,y)∈R → (y,x)∈R.   Let's check.

(x,y)∈R  so

3x-y = 0

y  = 3x

Is  (y,x)∈R.  That would be true if 3y-x=0

3y - x = 3(3x) - x = 8x ≠ 0 necessarily NOT SYMMETRIC

R is transitive if (x,y)∈R and (y,z)∈R → (x,z)∈R.   Let's check.

3x-y = 0  so y=3x

3y-z = 0 so z=3y = 9x

3x - z = 3x - 9x = -6x ≠ 0 necessarily   NOT TRANSITIVE

6 0
3 years ago
A toy car can go 5 mph. How long would it take to go 7 miles?
Radda [10]

Answer:

by the way what grade are you in? If you are more than 7th grade can you help me? brainly.com/question/16233847

35 mph

Step-by-step explanation:

7 times 5

3 0
3 years ago
Are the ratios of 2 apples to 5 oranges and 6 apples to 14
kramer

Answer:

No

Step-by-step explanation:

Multiplying the 2 and the 5 by 3 will get you 6 and 14. 14 is not a factor of 5 making it incorrect.

3 0
2 years ago
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Answer:

70.2

Step-by-step explanation:

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Answer:

Description

Step-by-step explanation:

a. 2 solutions

b. 2 imaginary solutions

c. If the discriminant is positive, then it will have 2 real solutions as the square root of a positive number always equals a positive number. If the discriminant is negative, the quadratic equation will have 2 imaginary solutions, as the square root of a negative number is always imaginary. If the discriminant equals 0, it will have only 1 real solution.

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3 years ago
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