Answer: 125 ft cubed
Step-by-step explanation:
If you would like to solve 16x^2 - 81 = 0, you can calculate this using the following steps:
<span>16x^2 - 81 = 0
</span>(4x - 9) * (4x + 9) = 0
1. 4x - 9 = 0 ... 4x = 9 ... x = 9/4
2. 4x + 9 = 0 ... 4x = - 9 ... x = - 9/4
The correct result would be: <span>x = 9 over 4, x = −9 over 4.</span>
The amount Rachel has left of the amount given to her by her aunt after she makes the purchases is $22.15.
<h3>How much does Rachel have left?</h3>
In order to determine the amount she would have left, determine the total value of the purchases and subtract it from the amount she was given.
Total value of the purchases = (4 x 0.85) + 45.50 + (5 x 2.79) = $62.85
Change = $85 - $62.85 = $22.15
To learn more about addition, please check: brainly.com/question/19628082
Answer:
Step-by-step explanation:
2x + 2 + 5x + 3 = 180
7x + 5 = 180
7x = 175
x = 25
Answer:
Factor of 2.
Step-by-step explanation:
The radius ( one dimensional) scale factor is the square root of the surface area (2 dimensional) factor .
√4.0 = 2.0.
