2 years ago

URGENT PLZZ HELP!!!!

Mathematics

1 answer:

Rina8888 [55]2 years ago

3 0

Answer:

a disputa se eu não asetar amiga

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Lincoln is saving $360 to buy a new bike. He already has $85 and can earn $12 per hour at work. Which of the following equations

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Answer:

85 + 12w =360

Step-by-step explanation:

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3 years ago

twice a number minus 4 is less than three times the number. (define a variable, write an inequality, and solve for the problem)

Simora [160]

X will represent unknown
2x-4<3x
treat the < sign as a = sign
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subtract 2x form both sides
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3 years ago

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Help! Exponential Equation WITHOUT CALCULATOR

ale4655 [162]

$
1.
(2^{x} -2^{-x})^{2} = 4^{2} \\ \\2^{2x}-2*2^{x}*2^{-x} + 2^{-2x} =4^{2} \\ \\2^{2x}-2*2^{x-x} + 2^{-2x} =4^{2} \\ \\ 2^{2x}+ 2^{-2x} - 2=16 \\ \\ 2^{2x}+ 2^{-2x} = 18

\\ \\ 2.( 2^{x})^{3} - (2^{-x}^) ^{3}= (2^{x} -2^{-x})(2^{2x}+2^{x}*2^{-x}+2^{-2x})
\\ \\ ( 2^{x})^{3} - (2^{-x}^)^{3}=(2^{x} -2^{-x})(2^{2x}+2^{-2x}+2^{x}*2^{-x})
\\ \\ ( 2^{x})^{3} - (2^{-x}^)^{3}=(2^{x} -2^{-x})(2^{2x}+2^{-2x}+1)
\\ \\ ( 2^{x})^{3} - (2^{-x}^)^{3}=(2^{x} -2^{-x})((2^{2x}+2^{-2x})+1)
$

$\\ \\ ( 2^{x})^{3} - (2^{-x})^{3} =(4)((18)+1)= 76
\\ \\ 2^{3x}-2^{-3x} =76
$

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3 years ago

If Julia has 20 cupcakes, and 10 people eat one cupcake, how much cupcakes are left?

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There are going to be 10 cupcakes left,hope I helped (:

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3 years ago

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Which of the following expresses 16 + 36 by using the GCF of the two numbers?

sergij07 [2.7K]

16 + 36 = 52 so the answer would be A) 4(4 + 9) because that equals 52 as well.

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