Answer:
L = 5 m
Step-by-step explanation:
The ladder, the vertical wall and the ground form a right triangle. We call A and B the ends points of the ladder ( at the wall, and the ground)
If we call L the lenght of the leadder, we get
L² = y² + x²
Taking derivatives on both sides of the equation
0 = 2y Dy/dt + 2x Dx/dt
We know that Dy/dt = - 0,675 m/s (is sliding down , is decreasing)
And when x = 3 m Dx/dt = 0,9 m/s
So we can get y
0 = 2y*( -0,675) + 2*3*0,9
1,35y = 5,4
y = 5.4 /1,35 ⇒ y = 4
And L² = y² + x² ⇒ L = √ (4)² + (3)² ⇒ L √16 + 9
L = 5 m
Answer:
D. Whole Numbers
Step-by-step explanation:
Rational numbers are made by dividing an integer by an integer. An integer is basically any number. Real numbers are like numbers that actully exist and aren't like infinity or something. Whole numbers are any number above 0 that aren't a fraction or a decimal so it's D becase -7 is not above 0.
Answer:
15
Step-by-step explanation:
in 20 seconds, the zombie can walk 12 ft. in order to find 25, simply divide 6ft and 10 seconds to get 3ft and 5 seconds
Y+5=-3(x-6)
M= -3 points (6,5)
Just solve the equation
Y+5=-3x+18
Y=-3x+13
Hope it helps
That would be (y - 9)(y +9). When two binomials are multiplied, the distributive property is applied. However, if the equation is <span>y(3)(-3)y(3)(3), you just simply multiply them altogether. That would be -81y^2, which is not equivalent with y^2 - 81.</span>
