Answer:
σ = 11.68
Step-by-step explanation:
Answer:
x = -9
Step-by-step explanation:
Standard equation of direct variation:
y = kx
We need to find k.
We use the given point.
When x = 3, y = 9.
9 = k * 3
k = 3
Our equation is
y = 3x
Now we find x when y = -27.
y = 3x
-27 = 3x
x = -9
No answer!
Step-by-step explanation:
42+6=48÷2=24
what is the answer of this question?
or the answer 45.
I can't under stand sir!
Answer:
see explanation.
Step-by-step explanation:
2(10 * 4 * 7) is a surface area.
7 * 4 * 10 is volume.
2(10 * 4 + 10 * 7 + 4 * 7) is surface area.
10 + 4 + 7 is neither.
2 * 7 * 4 + 2 * 10 * 7 + 2 * 4 * 10 is neither.
hope this helps.
Answer:
y = -4x+15
Step-by-step explanation:
y=x/4+5 may be presented as y = 1/4 x + 5, where a=1/4, b=5
swapping numerator and denominator and inserting an opposite sign in a=1/4, we have:
1/4 --------> 4/1 -------> -4/1 = -4
y = -4x+n
Point (2,7) means that x=2, y=7 substitute it to the equation y=-4x+n, calculate "n":
7=-4*2+n ------> 7=-8+n -------> 7+8 = n -------> 15=n
substituting n=15 to the equation y=-4x+n, we get finally y=-4x+15
