We know that all three angles in a triangle must add to 180 degrees so we can use this fact to find the measure of the missing angles.
180-57-101= 22 degrees
180-72-72=36 degrees
180-x-20=160-x degrees
1/5
Step-by-step explanation:
(2,6) = 4/20 = 1/5
answer is 1/5
Answer:
For D. X= 3, or 0 but probably not 0
For the 2nd picture you sent, x= -2, or -3
Step-by-step explanation:
So for D. you want to make sure you only have 1 Variable, and since we know y=x squared + 7x+5, we subsitute y for what it is equal to.
Then we refine the question, which takes it out to
x squared-3x+5=5 (because the 7x-10x = 3x)
We subtract 5 from both sides which leaves us with x Squared - 3x= 0
Which we then solve with the Quadratic formula. and we separate the solutions to get the different answers for 3, and 0
Surface area = Area of rectangle + Areas of triangles.
Area of rectangle = 9cm * 15cm = 135cm2.
Areas of triangles = 6cm * 3cm = 18cm2.
Surface area = 135 + 18 = 153cm2
