Answer: -1
Step-by-step explanation:
1st problem:
Use the Pythagorean theorem:
a^2+b^2=c^2
49+361=c^2
c^2=410
c=20.24
The answer is 20m
2nd problem:
First calculate the height using the Pythagorean theorem:
a^2+b^2=c^2
20^2+b^2=625 (i got 20 {radius} by half-ing the base edge length)
400+b^2=625
b^2=225
b=15
Next, solve for the volume:
V=a^2*h/3
V=40^2*15/3
V=1600*5
V=8000
The answer is the second choice or B.
<h2><u>The solution set to inequality is:</u></h2>
<em><u>Solution:</u></em>
<em><u>Given inequality is:</u></em>
We have to find the solution set to inequality
From given,
Expand
<em><u>Thus the solution set is:</u></em>
Additive inverse is what you add to a number to get zero.
You are given 1.4 so you need to ADD -1.4 to get zero.
h=-1.4
2a and 15a. These are like terms due to the fact they have the same variables in this case "a".
