Answer:
2/3 * 5= 3.3333333
Step-by-step explanation:
honestly i don't know the steps..
Step-by-step explanation:
xy + 10 = 0. => y = -10/x.
2x + 3y = 7. => 3y = -2x + 7, y = -2/3 x + 7/3.
When -10/x = -2/3 x + 7/3,
-10 = -2/3 x² + 7/3 x, 2/3 x² - 7/3 x - 10 = 0.
=> 2x² - 7x - 30 = 0
=> (2x + 5)(x - 6) = 0
=> x = -2.5 or x = 6.
dy/dx = d/dx [-10/x] = 10/x².
When x = -2.5, dy/dx = 10 / (-2.5)² = 1.6.
When x = 6, dy/dx = 10 / (6)² = 5/18.
Hence the gradients at the points are 1.6 and 5/18.
Hello,
Let a the first, b the second and c the third.
a+b+c=53
b=a/3
c=2a
==>a+a/3+2a=53
==>10a/3=53
==>a=15.9
c=2*a=2*15.9=31.8
b=a/3=15.9/3=5.3
Proof: a+b+c=15.9+5.3+31.8=53
The second number is 5.3
Fold the string in half. Cut the crease.
Fold the two halves in half again. Cut the crease.
Done.
Answer:
B. f(x) = 0.9x + 1.1
Step-by-step explanation:
First, get the slope from using two pairs of points
y2-y1 / x2 - x1
3-2/ 2-1
1/1
1
Then, get the y-intercept
y=mx + b
2=1(1) + b
2 = 1 + b
b = 1
The equation is about:
y=x+1
You're trying to find the best one, so find the closest one
B is the closest
