3 years ago

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Mathematics

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ehidna [41]3 years ago

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In the United States, 15,000,000 households use private wells for their water supply. Write this number in scientific notation.

Lubov Fominskaja [6]

Answer:

1.5*10^7

Step-by-step explanation:

That's same as saying standard form

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3 years ago

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If the outliners are not included in the data set below, what is the mean of the data set?

SVETLANKA909090 [29]

I Think The answer is d I hope it helps Message Me if I’m wrong and I’ll change My answer and fix it for you

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3 years ago

If sales tax is 6% and you buy a shirt for $25 how much do you owe?

Leona [35]

Answer:

26.50

Step-by-step explanation:

First we need to calculate the sales tax

25 * 6%

Changing to decimal from

25 * .06

1.50

Then we add the tax to the cost of the shirt

25+1.50

26.50

We owe 26.50

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2 years ago

The city of Orlando’s building a dog park in downtown Orlando dog park will be triangular shaped as shown on the coordinate plan

kiruha [24]

Answer:

Perimeter of the dog park = 15.4 yards

Step-by-step explanation:

Coordinates of the vertices of the given triangle are,

P(1, 2), Q(1, 6), R(-4, 2)

Since distance between the two points $(x_1, y_1)$ and $(x_2,y_2)$ is,

d = $\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}$

Length of PQ = $\sqrt{(1-1)^2+(2-6)^2}$

PQ = 4

Length of PR = $\sqrt{(1+4)^2+(2-2)^2}$

PR = 5

Length of QR = $\sqrt{(1+4)^2+(6-2)^2}$

QR = $\sqrt{25+16}$

= $\sqrt{41}$

= 6.4 yards

Therefore, perimeter of the given triangle = PQ + QR + PR

= 4 + 6.4 + 5

= 15.4 yards

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3 years ago

Researcher Sandy Beach found a correlation coefficient of +2.3 between variables X and Y. She is thrilled because that correlati

tia_tia [17]

Correlation coefficient is always between -1 and +1. So it cannot be +2.3

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2 years ago