Answer:
Step-by-step explanation:
v(5v-7)=0
We multiply parentheses
5v^2-7v=0
a = 5; b = -7; c = 0;
Δ = b2-4ac
Δ = -72-4·5·0
Δ = 49
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
v1 = −b−√Δ/2a
v2 = -b+√Δ/2a
√Δ = √49 = 7
v1 = -(−7)−7/2*5 = 0/10 = 0
v2 = -(−7)+7/2*5 = 14/10 = 1+2/5
Answer:
y=
x-4
Step-by-step explanation:
3x-2y=7
-3x -3x
-2y=-3x+7
/-2 /-2
y=
x-
perpendicular lines always have opposite reciprocal slopes
3/2--> -2/3
y=-2/3x+b
-2=-2/3(-3)+b
-2=2+b
-2 -2
b=-4
y=-2/3x-4
Answer:
4 ballons per basket because
80 ballons divided by 20 baskets is 4
Step-by-step explanation:
Step-by-step explanation:
angle ACB = 41° ( vertically opposite angle)
Now, 41°+56°+x= 180°(straight angle)
=> x= 180°- 97°
=> x= 83°
I think the answer is 38 miles I hope this helped!
