Answer:
I'm so sorry but I don't know this problem. I'm still in middle school so I haven't learned this yet. I wish I could help. ):
Answer:
y = - 140
Step-by-step explanation:
The statement
y varies jointly as x & z is written as
<h3>y = kxz </h3>
to find y when x = 7 and z = -5 we must first find the relationship between the variables
when y = - 180
z = 15
x = - 3
- 180 = k(15)(-3)
-180 = - 45k
Divide both sides by - 45
k = 4
The formula for the variation is
<h2>y = 4xz</h2>
when
x = 7
z = -5
y = 4(7)(-5)
y = 4(-35)
<h3>y = - 140</h3>
Hope this helps you
Answer:
45262
Step-by-step explanation:
Answer:
y^2
Step-by-step explanation:
(y x y^1/3)^3/2 would be clearer if written as
(y*y^(1/3))^(3/2).
Because y^a*y^b = y^(a + b), the quantity inside the first set of parentheses becomes
y^(4/3)
and if we apply the power (3/2) to this result, we get:
4 3
(y^(4/3))^(3/2) = y^{ ----- * ----- ) = y^2
3 2
