Answer:
x = 9
∠B = 7 x 9 - 1 = 62°
∠BCD = 120°
Step-by-step explanation:
exterior angle of a triangle is equal to the sum of two opposite interior angles
∠BCD = ∠CBA + ∠BAC
10x + 30 = (7x - 1) + (58)
10x + 30 = 7x + 57
3x = 27
x = 9
∠B = 7 x 9 - 1 = 62
∠BCD = 10 x 9 + 30 = 120
Answer:
A
Step-by-step explanation:
i did the assignment on e d g e n u i t y 2020
First we find the volume of the triangular prism.
We find the area of the triangle, then we multiply that by the height.
So 7*6/2= 42/2=21
21*10= 210
Then if all the dimensions add another foot on to them then you get: 7, 8, and 11.
Then you do the same thing to find the area of this rectangular prism.
7*8/2=56/2=28
28*11= 308
Now, we calculate the growth from 210 to 308 in this proportion: 308/210=x/100
Solving it we get (cross multiplying):
210x=30800
x=146 2/3 or 146.66 percent increase.
I hope this helps!
Answer:
A car travels 20km in 15 minutes, what is the average speed that the car travelled at?
the average speed that the car travelled at is 80km per hour
Step-by-step explanation:
Answer:
Step-by-step explanation:
W (-6,-2) to W' (-2,6)
X (-2,-2) to X' (-2,2)
Y (-2,-6) to Y' (-6, 2)
Z (-5,-6) to Z' (-6, 5)
I think that those are the answers
The formula for rotating 270 degrees counterclockwise is (x,y) to (y,-x)
