Use an area model to multiply (3x+7)(4x+5).
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Answer:
Step-by-step explanation:
If the base of the square pyramid has an area of 576 units, then the side length must have a length of . 24/2=12, and using the pythagorean theorem you can find that the height of the pyramid is
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Well, let's say the numbers are "a" and "b"
so a * b = ab
ok... now, if we reduce "a" by 25%, that means the new size is just 75% of the old one, how much is 75% of a? well, (75/100) * a, or 0.75a
now let's reduce "b" by 50%, that means the new size is 50% or half, how much is 50% of b? well (50/100)*b, or 0.5b
now, the new size of "ab" is just 0.375ab... well, let's revert the decimal format by simply multiplying by 100
0.375 * 100, is 37.5%
the new size of "ab" is just 37.5% of the original "ab"
it decreased by 100 - 37.5 or 62.5%
so a * b = ab
ok... now, if we reduce "a" by 25%, that means the new size is just 75% of the old one, how much is 75% of a? well, (75/100) * a, or 0.75a
now let's reduce "b" by 50%, that means the new size is 50% or half, how much is 50% of b? well (50/100)*b, or 0.5b
now, the new size of "ab" is just 0.375ab... well, let's revert the decimal format by simply multiplying by 100
0.375 * 100, is 37.5%
the new size of "ab" is just 37.5% of the original "ab"
it decreased by 100 - 37.5 or 62.5%
Here is the definition of a negative exponent.
For any non-zero value of a,
Look at your problem and follow the definition.
Since 4^3 = 4 * 4 * 4 = 64, we can now write:
For any non-zero value of a,
Look at your problem and follow the definition.
Since 4^3 = 4 * 4 * 4 = 64, we can now write: