Answer:
See below.
Step-by-step explanation:
So we want to prove that:
First, simplify √8. This is the same as:
Therefore, our equation is now:
Combine like terms on the left:
The square root of something is the same as taking that number to the one-half power. Thus:
Rewrite:
And we're done!
<span>Simplify both sides of the inequality.
x-5>25
</span><span> Add 5 to both sides.
</span>
x-5+5>25+5
x>30
Well first you look at the exponent with 10. This is -7. This tells you to things. The negative tells you that you will be moving the decimal place to the left and the number 7 tells you how many times.
5.871
Shift for the first time
.5871
Shift for the second time
.05871
Shift for the third time
.005871
Shift for the fourth time
.0005871
Shift for the fifth time
.00005871
Shift for the sixth time
.000005871
Shift for the seventh time
.0000005871
Answer:
y = 
Step-by-step explanation:
Each point is (x,y). So to find the equation, substitute both points into the given choices.
To test the first choice: y = 
substitute -8 into x and -6 into y
-6 = 
-6(3) = (-4)(-8)
-18 ≠ 32
Since the numbers are not equal this is not the correct equation. Move on to testing the next equation in the same manner.
The third equation y = 
satisfies both points
Test for point (-8,-6)
-6 = 
-6(4) = (3)(-8)
-24 = -24
Test for point (12,9)
9 = 
9(4) = (3)(12)
36 = 36
The cost of one tv is double than cost of one DVD;
The cost of 2 tv is 4 times more cost one DVD ;
The cost of 2 tv and 3 DVD player is 7 times more cost one DVD ;Then, 1 DVD cost 1421 ÷7 = 201 $ ;
1 tv cost = 2 * 201 = 402 $ ;
