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2 years ago

Write an algebraic expression. The quotient of -9 and y

Mathematics

2 answers:

kirza4 [7]2 years ago

5 0

Answer:

-9 ÷ y

Step-by-step explanation:

an expression is a question without a equal sign , and quotient is the outcome of a division question . I hope this helps

Alenkasestr [34]2 years ago

3 0

Hey there!

“The quotient of -9 and y”

• Facts When you come across the word “QUOTIENT” in algebra/ math in general it usually MEANS you’re DIVIDING both your numbers by each other

• Guide: -9 will be your numerator and y would be your denominator (or -9 would be in your front whereas y will be in the back)

So, based on your guide we have your ANSWER should look like: “-9 ÷ y”

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

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Emily spends $28 on food. This amount of 4/9 of her allowance, what is Emily’s allowance?

Fantom [35]

Answer:

$63

Step-by-step explanation:

so we want to find 9/9 of her allowance, which is 100%

we could use a proportion:

let 'a' = full allowance

$\frac{28}{1}$ ÷ $\frac{4}{9}$ = $\frac{a}{1}$ ÷ $\frac{9}{9}$

when we divide fractions we multiply by the reciprocal to get:

28 x 9/4 = a

a = 252/4

a = 63

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2 years ago

Solve and check: x + 10 + 4x + 90 = 180

Nataly_w [17]

Answer:

Step-by-step explanation:

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3 years ago

What is the image of N for a 300° counterclockwise rotation about the center of the regular hexagon? Will give brainiest only if

OLEGan [10]

Answer:

Step-by-step explanation:

here, the question says that the given regular hexagon needs to be rotated counter clockwise 300°, considering the edges labels, each movement from one edge to other is 60° as 360/6 =60.

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When N rotates anti clockwise about center from original to position G, is 60°,

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3 years ago

Write and evaluate the expression. Then, select the correct answer.

FromTheMoon [43]

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2 years ago

The Wall Street Journal reports that 33% of taxpayers with adjusted gross incomes between $30,000 and $60,000 itemized deduction

Len [333]

Answer:

(a) n : 20 50 100 500

P (-200 < X - μ < 200) : 0.2886 0.4444 0.5954 0.9376

(b) The correct option is (b).

Step-by-step explanation:

Let the random variable X represent the amount of deductions for taxpayers with adjusted gross incomes between $30,000 and $60,000 itemized deductions on their federal income tax return.

The mean amount of deductions is, μ = $16,642 and standard deviation is, σ = $2,400.

Assuming that the random variable X follows a normal distribution.

(a)

Compute the probability that a sample of taxpayers from this income group who have itemized deductions will show a sample mean within $200 of the population mean as follows:

For a sample size of n = 20

$P(\mu-200$

$=P(-0.37$

For a sample size of n = 50

$P(\mu-200$

$=P(-0.59$

For a sample size of n = 100

$P(\mu-200$

$=P(-0.83$

For a sample size of n = 500

$P(\mu-200$

$=P(-1.86$

n : 20 50 100 500

P (-200 < X - μ < 200) : 0.2886 0.4444 0.5954 0.9376

(b)

The law of large numbers, in probability concept, states that as we increase the sample size, the mean of the sample ( $\bar x$ ) approaches the whole population mean ( $\mu_{x}$ ).

Consider the probabilities computed in part (a).

As the sample size increases from 20 to 500 the probability that the sample mean is within $200 of the population mean gets closer to 1.

So, a larger sample increases the probability that the sample mean will be within a specified distance of the population mean.

Thus, the correct option is (b).

8 0

3 years ago