15% of 45 is 0.15 x 45 or 6.75 feet. That's how far the submarine descended in 1 minute. So, in 4 minutes the submarine would be 4 x 6.75 feet down which is 27 feet.
Answer:
Step-by-step explanation:
1) regroup term.
2) Simplify 1/2 ( 8x - 4 ) to 8x - 4/2.
3) Factor out the common term 4.
4) Simplify 4( 2x - 1 ) / 2 to 2( 2x - 1).
5) Expand by distributing terms.
6) Remove parentheses.
6) Collect like terms.
8) Simplify.
<em><u>Therefor</u></em><em><u>,</u></em><em><u> </u></em><em><u>the</u></em><em><u> </u></em><em><u>answer</u></em><em><u> </u></em><em><u>is</u></em><em><u> </u></em><em><u>-x</u></em><em><u> </u></em><em><u>-</u></em><em><u> </u></em><em><u>3</u></em><em><u>.</u></em>
I’m not sure if this is actually a strategy but can I get brainliest please. If I’m not allowed to use a calculator then I would covert the decimals to fractions. I would covert them to the simplest fractions before multiplying so that the answer is as closest to its simplest form as possible.
adding a negative number is the same as subtracting a positive number. This question is the same as 10.5-8.3
The formula for a cylinder is πr²*h where r is the radius and h is the height:
1.) Plug in r for 4, as the radius is 4
π(4)²*h
2.) Plug in h for 8, as the height is 8
π(4)²*8
3.) Simplify 4²
π(16)8
4.) Simplify 16*8
π128
5.) Don't forget your units, inches cubed (because you multiplied three dimensions all with inches, which results in the inches being multiplied three times as well)
π128 in³ or 128πin³
It is the third answer choice, hope this helped :)
