The equation in it's simplest form is 60
b
+
70
Answer:
-6.3n + 8.6
Step-by-step explanation:
you add the terms together
Answer:
I make it 6 cm diameter (well....5.97 cm really, but it depends how many places you take π to!).
Explanation:
You have been given density (d) and mass (m), so first you can determine volume (v).
<span>d=<span>m/v</span></span> therefore <span>v=<span>m/d</span></span> = <span>3000/2.33</span> = 1287.55 <span>c<span>m^3</span></span>
Now you have the volume and the length (L) from which you can work out the cross sectional area, <span>π.<span>r2</span></span>, and from that the diameter.
Volume v =<span>π.<span>r2</span>.L</span> therefore r = <span>√<span>v/<span>π.L</span></span></span> and diameter D = 2r = <span>√(<span>v<span>π.L)</span></span></span>x 2.
So plugging in the numbers gives: D = <span>√(<span>1287.55/<span>3.142X46)</span></span></span> X2 = 5.97 cm.
The correct answer is n=4:)
1/2n + 15 = 9 <== ur equation
1/2n = 9 - 15
1/2n = - 6
n = -6 * 2
n = - 12 <== ur solution
