Please show work, will mark brainliest
1 answer:
Answer:
The radius of the can, rounded to the nearest hundredth, is 530.66.
Step-by-step explanation:
We want to do the reverse of the formula for <em>V</em>, which is pi(r)^2(h).
to isolate r.
Let's start by writing an equivalent equation to V = <em>h</em> by solving for r
Now, substitute and solve for r
1014 * 3.14 / 6 = 530.66
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Answer:
Step-by-step explanation:
Question One
Multiply through by 2
2*1/2 * (2x + y ) = 21/2 * 2
Combine
2x + y = 21
Subtract 2x from both sides
y = 21 - 2x
Now equate the two given equations
y = 21 - 2x
y = 2x
Add 2x to both sides
2x = 21 - 2x
2x + 2x = 21
4x = 21
x = 21/4
x = 5 1/4
or
x = 5.25
Question 2
multiply numerator and denominator of the second fraction by (x + 2)
Remove the numerator brackets in the right hand fraction. Look out for the minus sign.