Answer:
21 = 6 - <em>x</em> - 4<em>x</em>
simplify 6-x-4<em>x</em> to 6-5<em>x</em>
21 = 6-5<em>x</em>
subtract 6 from both sides
21-6 = -5<em>x</em>
simplify 21 - 6 to 15
15 = -5<em>x</em>
divide both sides by -5
= <em>x</em>
simplify
to 3
-3 = <em>x</em>
switch sides
<em>x</em> = -3
Step-by-step explanation:
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Your answer will be is :


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Answer:
48 ft³
Step-by-step explanation:
To find the height, you can use the slant height and the base.
Using the Pythagorean Theorem and 3 as the triangle's base,
a²+b²=c²
3²+b²=5²
9+b²=25
b²=16
b=4
The height of the pyramid is 4.
Volume formula for the pyramid is 
Inserting our measurements:

Answer:
1 : 19 PM
Step-by-step explanation:
9 + 3 = 12
42 + 37 + 79
12:00 + 1 hour and 19 minutes
1 : 19 pm
Answer:

Step-by-step explanation:
A root can be converted to a power by taking the base of the root (in this case 4) and making it 1 over that number, so in this case 
If it were the fifth root you would make it to the 1 over 5 power.