06/26/19

Maths, circles, circumference, area, diameter and radius
Billy likes to go cycling. His bike has wheels of diameter 85 cm.He has invented a counter for his bike which counts the number of revolutions the wheels make.One day the counter shows 290... more
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06/26/19

Absolute value function as a piecewise function
Hello, I am a former ninth grader currently taking pre-calculus over the course of the summer. I'm am doing an honors assignment. The assignment involves the function f(x)=|x|. She wants my to... more
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06/26/19

if a license plate has 3 digits and 3 letters how many outcomes are there if digits can be repeated but letters cannot?
Need to see a tree diagram
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06/26/19

Why is the infinite series n^n/(n+1)! and n^(n+1)/n! divergent by the ratio test?

Why is the infinite series nn/(n+1)! and n(n+1)/n! divergent by the ratio test? I see how it is divergent by the test for divergence, but I am supposed to prove it through the ratio test. Every... more
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06/25/19

Rational Functions
How are rational functions similar to linear, quadratic, or exponential functions? How are they different? When are these similarities or differences important when looking for intersections... more
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06/25/19

IN NEED OF HELP THX

Use the graph to fill in the blank with the correct number.f(0) = ________Numerical Answers Expected!Answer for Blank 1:____________________
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06/25/19

Which of these numbers is the odd one out? Options A) 4561 B) 3724 C) 9142 D) 6434
Which of these numbers is the odd one out?OptionsA) 4561B) 3724C) 9142D) 6434
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06/25/19

Brian has 132 blue pens. He has 5 times as many res pens as compared to the number of blue pens. How many res pens does he have?
Plz help to solve this model math
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06/25/19

Solving equations in Trigonometry
Find the value of 𝜃, when sin(8𝜃)cos(4𝜃)=0
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06/25/19

Factor the following quadratic completely: 8r^2 - 16r - 10 Step by Step
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06/25/19

c is the same as c times 134 decreased by 376
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06/25/19

What is the weight of each boy if......
Their total weight is 72 kg. However; Ken is 8 kg more than Tom and Bob is 2 kg more than Ken.
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06/25/19

Proportions and equal problems

At 10 am a snowstorm is 250 miles west of St.Louis. The storm travels 150 miles eastward at a constant rate, and then it’s speed decreases by 5 miles per hour. If the storm reaches St.Louis at 8.00... more
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06/25/19

Algebra about trains
Two trains leave a station at 11 am onetrain travels north at a rate (speed) of 36mph and another travels east at a rate (speed) of 48 mph. Assuming that the trains do not stop, at what time will... more
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06/23/19

tan a =1/2 , tan b =1/3 and cos2a=sin'm'b.Find m
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06/23/19

The rectangle on the left (15by25)and the square on the right have the same perimeter.what is the length of one side of the square?
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06/22/19

Trigonometric Functions
A 40 meter high tower stands vertically on a hillside sloping ground which makes an angle of 18 degrees wit the same horizontal. A tree also stands vertically up the hill from the tower. An... more
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06/22/19

find an equation
Suppose a college bookstore sells 919 copies of a new (not used) textbook in 2007. Each year from 2007 to 2009, new-textbook sales are half of the previous year's sales (due to used-textbook... more
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06/22/19

find the equation
Physicians use gallium citrate-67 to detect certain types of cancer, including lymphoma. Gallium citrate-67 has an effective half-life of 3.24 days—some is lost to radioactive decay, and some is... more
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06/22/19

integral problem
If a cup of coffee has temperature 88°C in a room where the ambient air temperature is 18°C, then, according to Newton's Law of Cooling, the temperature of the coffee after t minutes... more
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06/22/19

Need help with this homework question
A random variable represents the number of successes in 10 Bernoulli​ trials, each with probability of success p=0.55.​(A) Find the mean and standard deviation of the random variable.​(B) Find the... more
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06/19/19

How do I write v<1 and v≤7 in interval notation for union and intersection
B={vIv<1}C={vI≤7}
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06/19/19

How do I find the range of (arc sinx) ³+ (arc cosx) ³?
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06/19/19

How do I find the equation that is perpendicular to the line 7x - 2y = 8 and intersects the line 7x - 2y = 8 at x = 8?
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06/19/19

How do you determine the equation of a parabola which has a vertex of (-1,3) and passes through the point (0,5)?
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