499 Answered Questions for the topic Mathematica

09/27/21

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Problem: You own an orchard of apple trees. From experience, you know that when 100 trees are planted, each tree yields approximately 240 apples. Furthermore, you’ve also noticed that when an... more
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Mathematica

09/16/21

Determine the height of the object after 3 seconds
Object projected upward with an initial velocity of 52 feet from the top of a 72 foot building.-16t + 52t + 72
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Mathematica Math Sat Math Act Math

09/10/21

Determine the value of x, y and z
Determine the value of x, y and z if- 4x-3y= 2-8z- y is twice as large as x- z is one sixth of yThe answer is x = 3, y = 6 and z = 1 but how do I get that answer?
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Mathematica Math Sat Math Act Math

09/10/21

What number is K?
What number is K if the value of the expression 67-3k is twice as large as the value of the expression k-9?The answer is k=7, but how do I get the answer?
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Mathematica Math Sat Math Act Math

09/09/21

Simplify the expression 5x-4y
Simplify the expression 5x-4y if we know that b) x-y=1
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Mathematica Math Sat Math Act Math

09/09/21

Is there any value of x that is consistent with the following?
Is there any value of x that is consistent with the following?"The value of the expression 3-2x is 5 more than twice the value of the expression."
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Mathematica Math Sat Math Act Math

09/09/21

Determine the cost per hour on
It costs 140 SEK more to rent a padel court for an hour on weekends than on weekdays.Three hours on a weekend costs 50 SEK more than five hours on a weekday.Determine the cost per hour ona)... more
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Mathematica Math Sat Math Act Math

09/05/21

How much of the vegetable field does Laban then have left to grow on?
Laban has acquired an allotment with a large vegetable plot. He grows lettuce on 1/3 of the vegetable land and carrots on 4/7 of the rest. How much of the vegetable field does Laban then have left... more
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Mathematica Math Sat Math Act Math

09/04/21

How much does the empty jar weigh?
A jar filled to 1/4 with jam weighs 250g. When the jar is 3/4 full, it weighs 350g. How much does the empty jar weigh?
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Mathematica Math Sat Math Act Math

09/01/21

How much does one hydrogen atom weigh (grams)?
One cubic metre of hydrogen at normal pressure contains 26,900,000,000,000,000,000,000 molecules and weighs 0.090 kg. Each molecule contains two hydrogen atoms. How much does one hydrogen atom... more
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Mathematica Math Sat Math Act Math

09/01/21

How much does one hydrogen atom weigh (grams)?
One cubic metre of hydrogen at normal pressure contains 26,900,000,000,000,000,000 molecules and weighs 0.090 kg. Each molecule contains two hydrogen atoms. How much does one hydrogen atom weigh... more
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Mathematica Math Statistic Mathematics

06/06/21

Unless you are willing to invest for 27 years
Unless you are willing to invest for 27 years or more, 5% compound interest will not beat 10% simple interest. Is it true or falso?(Note: i cannot understand well that question, if you can give me... more
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Mathematica Math Algebra Mathematics

05/30/21

Please help me with quadratic equation
a) Write a quadratic equation that can be solved by factoring and does not require the use of the quadratic formula. b) Write a quadratic equation that cannot be solved by factoring... more
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Mathematica Math Algebra Mathematics

05/30/21

Please help me solve this variation models
Write the variation model that corresponds to each statement. a) W varies directly with x. b) A varies inversely with the square of b. c) Z varies jointly with x and y. d) ... more
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05/30/21

For a Geometric distribution with parameter p = 1/3 ,then the mean and variance are given by
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Mathematica Math Algebra

05/28/21

Please help me solve this
Find x such that for .𝑓(𝑥)=0 for (𝑥)= -2x2-x
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Mathematica Math

05/19/21

If you are paid hourly, your salary can be found from the formula Salary = hours worked x hourly rate.

Even if you're not paid by the hour, your salary and hours worked are related by the same equation.a) If an employee has a constant hourly rate, does his salary vary directly or inversely with the... more
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Mathematica Math

05/10/21

Answer true or false for each statement. If the statement is false, explain.

a) If a number in scientific notation has a negative exponent, then the number is negativeb) A number that is at least 1 but less than 10 cannot be written in scientific notation.c) A negative... more
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Mathematica Math Sat Math Act Math

05/09/21

Can a 5% increase be the same as a 5 percentage point increase?
Can a 5% increase be the same as a 5 percentage point increase?
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Mathematica Math Sat Math Act Math

05/09/21

The Andersson family has a loan on their home
The Andersson family has a loan on their home. When changes are made to the mortgage interest rate, the bank writes the change in points. One point corresponds to one hundredth of a percentage... more
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Mathematica Math Sat Math Act Math

05/09/21

A fruit yoghurt contains 11% sugar
A fruit yoghurt contains 11% sugar. The effect is to reduce the sugar content by 5%. On the new packaging, the manufacturer wants to draw attention to the lower sugar content and wants to write how... more
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Mathematica Math Sat Math Act Math

05/09/21

A chocolate manufacturer decides to increase the weight
In the run-up to Christmas, a chocolate manufacturer decides to increase the weight of the Allans Praliner chocolate box by 15% and at the same time reduce the price per box by 15%. What will be... more
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Mathematica Math Sat Math Act Math

05/09/21

A 50" TV costs SEK 5495 in cash.
A 50" TV costs SEK 5495 in cash. The repayment is 151 SEK per month + 28% annual interest on the debt. The Eriksson family pays 1000 SEK in cash and the rest on instalment. How much should be paid... more
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Mathematica Math Sat Math Act Math

05/09/21

A loan of SEK 27,000 is to be repaid in 3 equal amounts over 3 years.

A loan of SEK 27,000 is to be repaid in 3 equal amounts over 3 years. The interest rate is 4.2%. a) What is the total amount to be paid to the bank after one year? b) How many percent more... more
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Mathematica Math Sat Math Act Math

05/09/21

Samuel buys 1.5 kg of apples in shop A.
Samuel buys 1.5 kg of apples in shop A. The full price of the apples is 18kr/kg. Samuel gets a 15% discount on the price. Polly buys 1.5 kg of apples in shop B and gets a 10% discount on the... more
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