The volume of any cube is
V = s3
where:
V = volume
s = side
Your side is given. Therefore, the volume is
V = (5a + 4b)3
V = (5a + 4b)(5a + 4b)(5a + 4b)
V = (25a2 + 40ab + 16b2)(5a + 4b)
V = 5a(25a2 + 40ab + 16b2) + 4b(25a2 + 40ab + 16b2)
V = 125a3 + 200a2b + 80ab2 + 100a2b + 160ab2 + 64b3
V = 125a3 + 300a2b + 240ab2 + 64b3
To do this add 0.33 and 46.92. Subtract your sum from 61.05 and thats your answer.
The object reaches the lowest height at 5 seconds
<h3>How to determine the time?</h3>
The function is given as:
f(t) = -2t² +22t + 6
Differentiate the function
f'(t) = -4t +22
Set to 0
-4t +22 = 0
Subtract 22 from both sides
-4t = -22
Divide both sides by -4
t = 5.5
Remove decimal points
t = 5
Hence, the object reaches the lowest height at 5 seconds
Read more about quadratic functions at:
brainly.com/question/1214333
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Because one hour is 60 minutes, Joe ran 6km/60min
To get from 60 to 30, we can divide by 2. REMEMBER: Divide on both sides!
6/2=3
We end up getting 3km.
Hope this helps and please mark brainiest :D
The answer to Part A is 13.25.
And the answer to Part B is hen you round to the nearest 10th the steps are nearly always the same:<span>Identify which place value you are rounding to. The smaller the place value, the more accurate the final result will be.Look to the next smallest place value, the digit to the right of the place value you're rounding to. For example, if you want to round to the nearest ten you'd look at the ones place.If the digit in the next smallest place value is less than five (0, 1, 2, 3, or 4), you leave the digit you want to round to as-is. Any digits after that number (including the next smallest place value you just looked at) become zeros, or drop-off if they're located after the decimal point. This is called rounding down.<span>If the next smallest place value is greater than or equal to five (5, 6, 7, 8, or 9), you increase the value of the digit you're rounding to by one (+1). Just like before, any remaining digits before the decimal point become zeros, and any that are after the decimal point are dropped. This is called rounding up.
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