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2 years ago

10

Fred buys a video game disk for $4 there was a discount of 20% what is the sales price please show work

1 answer:

polet [3.4K]2 years ago

8 0

multiply the price by the discount then subtract the answer from the price

4 * 0.20 = 0.80

4-0.80 = 3.20

sale price is $3.20

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Which equation is y=3(x-2)^2-(x-5)^2 rewritten in vertex form?

Misha Larkins [42]

The question does not present the options, but this does not interfere with the resolution

we have that
y=3(x-2)²-(x-5)²
y=3(x²-4x+4)-(x²-10x+25)
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y=(3x²-x²)+(-12x+10x)+(12-25)
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2 years ago

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2 years ago

A scientist studying water quality measures the lead level in parts per billion (ppb) at each of 49 randomly chosen locations al

NeX [460]

Complete Question

The complete qustion is shown on the first uploaded image

Answer:

The correct option is B

Step-by-step explanation:

From the question we are told that

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Generally the standard error of this measurement is mathematically represented as

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substituting values

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Now the probability that the mean lead level from the sample of 49 measurements T is less than 15 ppb represented as P(X < 15 )

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Now checking the z-table for the z-score of -1 we have

$P(X$

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2 years ago

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SVEN [57.7K]

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3. Two translations change the funcion $y=\log x$ into the function $y=\log (x-1)-2.$

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2 years ago

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Alex787 [66]

Answer:

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Step-by-step explanation:

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2 years ago

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