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<em><u>Answer:</u></em>
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<em><u>13 and 5</u></em>
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<em><u>Step-by-step explanation:</u></em>
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<em><u>x+y=18</u></em>
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<em><u>x-y=8</u></em>
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<em><u>_____</u></em>
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<em><u>2x=26</u></em>
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<em><u>x=13</u></em>
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<em><u>So the first number must be 13</u></em>
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<em><u>13+y=18</u></em>
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<em><u>y=5</u></em>
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<u><em>And the second number must be 5</em></u>
<span>so basically we only use the associative property of multiplication and one of the laws of exponents
associative=a(bc)=(ab)c
also law of exponent=a^x times a^y=a^(x+y)
(3.6 times 10^2) times (2.8 times 10^2)
associative
3.6 times 10^3 times 2.8 times 10^2
3.6 times 2.8 times 10^2 times 10^2
law of exponents
10^2 times 10^2=10^(2+2)=10^4
3.6 times 2.8=10.08
the answer is 10.08 times 10^4 or (10.08*10^4) or (1.001*10^5)
the second one
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<span>(3.6 times 10^6) times (2.2 times 10^-4)
associative
3.6 times 10^6 times 2.2 times 10^-4
3.6 times 2.2 times 10^6 times 10^-4
law of exponents
10^6 times 10^-4=10^(6-4)=10^2
3.6 times 2.2=7.92
the answer is 7.92 times 10^2 or (7.92*10^2)
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A is (1.001*10^5)
<span> B is (7.92*10^2)</span>
9514 1404 393
Answer:
A
Step-by-step explanation:
The applicable rules of exponents are ...
(a^b)(a^c) = a^(b+c)
(ab)^c = (a^c)(b^c)
(a^b)^c = a^(bc)
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Using these rules, along with the distributive property, we can simplify the given expression.
Well it will cost $6 to buy the hats individually and it will cost $4.50 to buy 3 packs of the 8 packs so it will cheaper to buy the hats in packs
A graph shows the x-intercepts to be x ∈ {1, 4, 7}.
These are the real solutions to the equation.