3 years ago

Question 1

Mathematics

1 answer:

Ivenika [448]3 years ago

5 0

Answer:

66.125

Step-by-step explanation:

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Henry is giving a 5.5% tip on his bill ,b and his final cost is $60. Which of the following represents that

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Answer:

Step-by-step explanation:

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2 years ago

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The variance of a stock's returns can be calculated as the:

Tamiku [17]

Answer:

The correct option is b.

Step-by-step explanation:

The formula for standard deviation is

$\sigma^2=\frac{\sum {(x-\overline{x})^2}}{n}$

where, $\overline{x}$ is mean of the data and n is number of observation.

The variance of a stock's returns can be calculated by the above formula.

Variance of stock's returns is the average value of squared deviations from the mean.

Therefore the correct option is b.

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4 years ago

Salina's age is one-quarter the age of her aunt. If a represents her aunt's age, which expression represents Salina's

alukav5142 [94]

Answer:

D. A over 4

Step-by-step explanation:

One quarter is equal to $\frac{1}{4}$ . If her aunt is age 'a', than Salina's age is a/4

Hope this helps.

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3 years ago

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Polygon ABCD is translated to create polygon A′B′C′D′. Point A is located at (1, 5), and point A′ is located at (-2, 1). What is

olga nikolaevna [1]

The distance between B and B' will be the same as distance between A and A'.

= sqrt ( (5-1)^2 + ( 1 - -2)^2)

= sqrt (16 + 9)

= 5 units answer

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3 years ago

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X^2 -18x +81=0 factor it

nasty-shy [4]

Answer:

x=9

Step-by-step explanation:

81 is the product of -9 & -9. -9-9=-18. Therefore, (x-9)^2=0, and you get that x=9.

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3 years ago