3 years ago

The probability that a battery you buy lasts at most 100 hours is about DONE

Mathematics

1 answer:

belka [17]3 years ago

6 0

Answer:

4 percent

Step-by-step explanation:

just took the test :)

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A rectangle is to be drawn with perimeter 64cm. If the length is to be 14cm more than the width, determine the are of the rectan

Vikentia [17]

P = 64 cm

2(( x + 14) + x) = 64

2x + 28 + 2x = 64

4x + 28 = 64

4x = 64 - 28

4x = 36

x = 36/4

x = 4

width = 4

lenight = 18

area = l x b

area = 18 x 4

area = 72

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3 years ago

At the restaurant there is 7% sales tax. If the bill was $8.64, how much would be owed in total.

nlexa [21]

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3 years ago

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Solve the logarithmic equation.<br> y = log4 0.25<br><br> What does y equal?

Valentin [98]

$\bf \textit{exponential form of a logarithm} \\\\ log_a b=y \implies a^y= b\qquad\qquad a^y= b\implies log_a b=y \\\\[-0.35em] \rule{34em}{0.25pt}\\\\ y=\log_4(0.25) ~\hfill 0.\underline{25}\implies \cfrac{025}{1\underline{00}}\implies \cfrac{1}{4}\implies 4^{-1} \\\\\\ y=\log_4\left( 4^{-1} \right)\implies 4^y=4^{-1}\implies y=-1$