The answer is B, One number line increases by 1, and the other increases by 6.
Something is wrong here, the slope is off...
m=(y2-y1)/(x2-x1)
m=(1-3)/(12--4)
m=-2/16
m=-1/8
So the point slope form should be:
y-1=(-1/8)(x-12)
The standard form of the line is ax+by=c so we need to rearrange it to reflect the this form...multiply both sides by -8 to get:
8-8y=x-12 subtract 8 from both sides
-8y=x-20 subtract x from both sides
-x-8y=-20 by convention, the coefficient of x should be positive, multiply both sides by -1
x+8y=20
....
Just to show that the equation given you is incorrect..
y-1=(x-12)/4 using the point (-4,3)
3-1=(-4-12)/4
2=-16/4
2=-4 which is obviously incorrect...(they had the wrong slope for the two points given)
For the answer to the question above,
<span>V(n) = a * b^n, where V(n) shows the value of boat after n years.
V(0) = 3500
V(2) = 2000
n = 0
V(0) = a * b^0 = 3500
a = 3500
V(2) = a * b^2
2000 = 3500 * b^2
b = sqrt (2000/3500)
b ≈ 0.76
V(n) = 3500 * 0.76^n
We can check it for n = 1 which is close to 2500 in the graph:
V(1) = 3500 * (0.76)^1
V(1) = 2660
And in the graph we have V(3) ≈ 1500,
V(n) = 3500 * (0.76)^3 ≈ 1536
Now n = 9.5
V(9.5) = 3500 * (0.76)^(9.5)
V(9.5) ≈ 258</span>
Answer:
Step-by-step explanation:
Split the trapezoid as pictured below
Find its height and the upper base, then find the area of the trapezoid.
There are 3 pieces, two of them are 45°×45° and 30°×60°×90° triangles
- The ratio of sides of a 30°×60°×90° triangle is 1 : √3 : 2
- The legs of a 45x45 triangle are equal
<u>The above mentioned properties give us:</u>
- h = 16/2 = 8 m
- b = 8√3 ≈ 13.85 m
- a = h = 8 m
<u>Now find the area:</u>
- A = 1/2( 13 + 8 + 13.85 + 13)*8 = 191.4 m²
Correct choice is B
Answer:
it's a
Step-by-step explanation:
just took the testttt
