Answer:
x=13
Step-by-step explanation:
Therefore, substituting the value in the equation
Squaring both sides,
Answer:
a. $5,037.50
Step-by-step explanation:
Area = length × width
25 × 13 = 325 sq. ft
It costs $15.50 to carpet an area of 1 sq. foot.
For 325 sq. ft of area, it will cost
15.50 × 325 = 5037.5
Answer:
(x-1)(x+5)=0
x=1; x=-5
Step-by-step explanation:
x²+4x=5
x²+4x+2²=5+2²
(x+2)²=3²
(x+2)²-3²=0
(x+2-3)(x+2+3)=0
(x-1)(x+5)=0
(x-1)=0 ; x=1
(x+5)=0; x= - 5
Answer:
dx/dt= 0.2608 at h= 3.1 m
Step-by-step explanation:
a is the length of the ladder. a=5
by pythagorus theorem
differentiating with respect to t we get
......1
The variable h is the height of the ladder's top at time t, and x is the distance from the wall to the ladder's bottom
At h= 3.1
x^2= 6^2-3.1^2 = 9.1×2.9
x= 5.1371 m
given
putting values in 1 to get dx/dt
.
dx/dt= 0.2608 at h= 3.1 m
Answer:
Step-by-step explanation:
The equation of a line in the point-slope form:
We have:
Substitute: