B 10
Explanation count the spaces
45 45 90 triangle
legs are x and hypotonuse=x√2
10=furst x
10=x
hypotonuse=10√2
that hypotonuse is the leg of the other triangle
the hypotonuse is √2 times that
10√2=x of bigger triangle
hypotonuse=x√2=10√2 times √2=10*2=20
answer is 20 units
Given the quadratic y = 2x^2-4x-1, I identify A = 2, B= -4 and C = -1. The axis of symmety: x = -b/2a --> 4/2(2) = 4/4 = 1. Therefore, the x-coordinate of the vertex is 1. To find the y-coordinate, I plug in 1 for x into the quadratic. Hence, y = 2(1)^2-4(1)-1 ---> -3. The coordinates of the vertex are (1,-3).
I think for part 2 it is 5/6 and for part 1 it is 5/12×4/3=20/36=5/6 which is ur answer
Answer:
increasing , $15.50
Step-by-step explanation:
Since Kayleen spends only $20 out of the $35.50 she earns a week, she is saving $15.50 every week and therefore, her bank balance will be incremented by $15.50