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Math Questions

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Dans un agrandissement ou une réduction de rapport k les longueurs sont

Box 1 contains 5 red balls and 2 white balls.Box 2 contains 4 red balls and 3 white balls.(a) A box is chosen at random and a ball is drawn. Find the probability that the ball is red

On a particular day, there are 64 flights scheduled between these two cities.Find the probability that more than 6 of the flights on this particular day will have a flight time of more than 80 minutes.

A company produces bags of sugar whose masses, in grams, can be modelled by a normal distribution with mean 1000 and standard deviation 3.5. A bag of sugar is rejected for sale if its mass is less than 995 grams.(a) Find the probability that a bag selected at random is rejected. [2](b) Estimate the number of bags which will be rejected from a random sample of 100 bags. [1](c) Given that a bag is not rejected, find the probability that it has a mass greater than 1005grams.

The value of a car is given by the function C = 40 000(0.91)t, where t is in years since 1 January 2023 and C is in USD($).(a) Write down the annual rate of depreciation of the car. [1](b) Find the value of the car on 1 January 2028. [2]Alvie wants to buy this car. On 1 January 2023, he invested $15 000 in an account that earns 3% annual interest compounded yearly. He makes no further deposits to, or withdrawals from, the account.Alvie wishes to buy this car for its value on 1 January 2028. In addition to the money in his account, he will need an extra $M.(c) Find the value of M.

Find, correct to the nearest 10 years, the time taken after the plant's death for 25 % ofthe carbon-14 to decay.

Sketch the graph of f , showing clearly the value of the x-intercept and the approximate position of point P.

Would the Manager like to open the discussion, and tell us a little bit about this case ?

Well everybody, I think it's time we got started. Good afternoon. Thanks for coming.

I'd like to begin by explaining the issue at stake today. You will probably be aware that

So, to sum up today's meeting, we' en général over the arguments for and against each project.

what do angles in a quadrilateral add up to

There are 3 different cheeses at the deli. Yasuko buys 3/4 of a pound of each. There are also 4 different meats. She buys 1/2 of a pound of each. How much total food did Yasuko buy at the deli?

A sign language club made $627.50 from selling popcorn at a festival. The popcorn cost the club $95.00. Which expression represents the amount of money that was raised for each member of the club?

At a farmers market, Samuel bought 3 pounds of apples for x dollars per pound and 2 bags of spinach for y dollars each. The next day he returned and bought 5 pounds of apples for x dollars per pound and 3 bags of spinach for y dollars each. Which expression represents the total amount he spent at the market on both days?

Yuri's sister Karina is 12 years old. In the equation below, y represents Yuri's age in years.12=3y-2

Tamir buys tickets to two concerts this season. One has a face value of $32.50, and one has a face value of $26.50. He uses a coupon and gets both tickets at 1/4 off. If he pays with a $50 bill, how much change should Tamir receive?

A recipe that makes 4 servings calls for 2/3 cup of flour. uses a large container of flour to make 20 servings of the recipe. What number represents the change in the amount of flour from the large container?

Juan is rewriting the expression 12d-26c as a product. Which statements about the expression are accurate and relevant to his rewriting the expression? Check all that apply.

Half of a number minus seven is one and five-tenths.

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