Raymond B.

Algebra 2

02/09/23

H(t)=-4.9^2+280+7

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Math

02/09/23

Out of 220 racers who started the marathon, 196 completed the race, 22 gave up, and 2 were disqualified. What percentage did not complete the marathon?

Give your answer accurate to at least 1 decimal place.

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Statistics

02/09/23

Suppose a lab is developing a robust new test to look for diabetes in children. If a child actually has diabetes, the probability that the test will be positive is 84%, indicating they have diabetes.

If the child does not have diabetes, the probability that the test will be positive is 10%. Suppose 5.6% of all children actually have diabetes. (Round your answer to 3 decimal places, if... more

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Statistics

02/09/23

You decide to start taking coins out of your piggy bank. Currently, your piggy bank has 43 coins, of which 14 are toonies and 8 are loonies.

Suppose that when you take a coin out, you do not put it back in the piggy bank; you are picking coins without replacement. (Round your answers to 4 decimal places, if needed.)a) What is the... more

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Precalculus Finite Math

02/09/23

Rework problem 27 from section 2.4 of your text. Assume that the team plays 7 games.

If the team is equally likely to win as to lose each game, what is the probability that they win a string of at least 5 games in a row?

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Answers •2

Math

02/09/23

A company's sales in Seattle were $340,000 in 2012, while their sales in Portland were $235,000 for the same year. Complete the following statements:

a. Seattle's sales were blank % larger than Portland's.b. Portland sales were blank % smaller than Seattle's.c. Portland sales were blank % of Seattle's.

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Math

02/09/23

A store has clearance items that have been marked down by 30% They are having a sale, advertising an additional 40% off clearance items. What percent of the original price do you end up paying?

Give your answer accurate to at least one decimal place.

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Statistics

02/09/23

A manufacturer produces items with a rectangular base. Let random variables denote the respective length (X) and width (Y) of the rectangle (in cm)

Suppose X and Y are independent with the following parameter values.E(X) = 5, Var(X) = 0.19, E(Y) = 6, Var(Y) = 0.35The perimeter is then defined as 2X + 2Y.(Round your answers to 4 decimal places,... more

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History American History Reading

02/09/23

What is your opinion on the "clear and present danger" test? ( Book, p. 144). Do you agree or disagree with its limits on free speech?

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Math

02/09/23

Shilo is trying to compute the value of 27+55+13. She adds 27+13 to get 40, and the adds on 55. which of the following properties is Shilo using?

communitativedistributiveidentityassociative

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Business Calculus

02/09/23

I'm having trouble with figuring out the steps for this problem

The market equilibrium point for a product is reached when 10000 units are produced and sold at $30 per unit. The manufacturer will not produce any units at the price of $3, and the customers will... more

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Business Calculus

02/09/23

I found part a but I need help on the steps in part b

the equations below represent the supply and the demand, in some order, for a certain product.Note that the price 𝑝p is in dollars.350𝑝+𝑞−7000=0350p+q−7000=0𝑞−150𝑝+1350=0q−150p+1350=0(a) Find the... more

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Math

02/09/23

How many liters each of 30% and 10% acid should be mixed to obtain 20 liters of 20% acid?

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Math

02/09/23

Distinguishing Circumference and Area

Tamia is covering a circular pool with a tarp. The pool has a diameter of 18 feet.Approximately how much of the pool does Tamia need to cover with a tarp?

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Math

02/08/23

46 is the total of 18 and a number d . an equation that represents this word sentence is?

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Math

02/08/23

Math Question!!!

The height of a stack of DVD cases is in a proportional relationship to the number of cases in the stack. A stack of 6 cases and its height are shown. Find the constant of proportionality. Then use... more

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Math

02/08/23

How many pages in a novel?

On the first day of vacation, you read one quarter of a novel. On the second day, you read half of the remaining pages. On the third day, you read the last 135 pages of the novel.how many pages... more

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Math

02/08/23

How many pigs and how many chickens are there?

In the barnyard is an assortment of chickens and pigs. Counting heads, one finds 13; counting legs, one finds 46. How many pigs and how many chickens are there?

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Algebra 1

02/08/23

What are the steps to solving this equation? Thank you!

Two families went to Rollercoaster World. The Brown family paid $170 for 3 children and 2 adults. The Peckham family paid $360 for 4 children and 6 adults. Determine the cost of a children’s... more

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Answers •2

Math

02/08/23

Scientific Notation

I have to convert 6168 billion km into meters with scientific notation, I don't know if the power is6,168 × 10^15 or ^18😭😅

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Answers •1

Calculus

02/08/23

Find equations of all lines having slope -1 that are tangent to the curve y = 1/x+5.

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Answers •2

Math

02/08/23

An object falls 16t^2 feet in t seconds, you drop a rock from a bridge that is 64 feet above the water will the rock hit the water in 2 seconds.Explain

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Math

02/08/23

Use the conversion factor 1 gallon = 3.785 liters. Convert 4 gallons per minute to liters per hour.

Round your answer to the nearest tenth.

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Math

02/08/23

Last week you worked 28 hours, and earned $266. What is your hourly pay rate?

Give your answer in dollars and cents (like 5.50)

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Math

02/08/23

You need a 35% alcohol solution. On hand, you have a 75 mL of a 15% alcohol mixture. You also have 40% alcohol mixture. How much of the 40% mixture will you need to add to obtain the desired solution?

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Answers •1

H(t)=-4.9^2+280+7

Out of 220 racers who started the marathon, 196 completed the race, 22 gave up, and 2 were disqualified. What percentage did not complete the marathon?

Suppose a lab is developing a robust new test to look for diabetes in children. If a child actually has diabetes, the probability that the test will be positive is 84%, indicating they have diabetes.

You decide to start taking coins out of your piggy bank. Currently, your piggy bank has 43 coins, of which 14 are toonies and 8 are loonies.

Rework problem 27 from section 2.4 of your text. Assume that the team plays 7 games.

A company's sales in Seattle were $340,000 in 2012, while their sales in Portland were $235,000 for the same year. Complete the following statements:

A store has clearance items that have been marked down by 30% They are having a sale, advertising an additional 40% off clearance items. What percent of the original price do you end up paying?

A manufacturer produces items with a rectangular base. Let random variables denote the respective length (X) and width (Y) of the rectangle (in cm)

What is your opinion on the "clear and present danger" test? ( Book, p. 144). Do you agree or disagree with its limits on free speech?

Shilo is trying to compute the value of 27+55+13. She adds 27+13 to get 40, and the adds on 55. which of the following properties is Shilo using?

I'm having trouble with figuring out the steps for this problem

I found part a but I need help on the steps in part b

How many liters each of 30% and 10% acid should be mixed to obtain 20 liters of 20% acid?

Distinguishing Circumference and Area

46 is the total of 18 and a number d . an equation that represents this word sentence is?

Math Question!!!

How many pages in a novel?

How many pigs and how many chickens are there?

What are the steps to solving this equation? Thank you!

Scientific Notation

Find equations of all lines having slope -1 that are tangent to the curve y = 1/x+5.

An object falls 16t^2 feet in t seconds, you drop a rock from a bridge that is 64 feet above the water will the rock hit the water in 2 seconds.Explain

Use the conversion factor 1 gallon = 3.785 liters. Convert 4 gallons per minute to liters per hour.

Last week you worked 28 hours, and earned $266. What is your hourly pay rate?

You need a 35% alcohol solution. On hand, you have a 75 mL of a 15% alcohol mixture. You also have 40% alcohol mixture. How much of the 40% mixture will you need to add to obtain the desired solution?

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