2,575 Answered Questions for the topic Maths

05/30/19

How many of the twenty correlations would you expect to be significant by chance?
0.0190.830.330.2320.110.010.4535.75e-060.1240.8400.5150.7660.2140.9060.4120.5190.7620.9080.9940.461
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Maths Prealgebra

05/26/19

if Angie puts 3 ounces of raisins in each bag of trail mix. She makes as many full bags of trail mix as possible. How many grams of raisins are not used in a full bag of trail mix?
if Angie puts 3 ounces of raisins in each bag of trail mix. She makes as many full bags of trail mix as possible. How many grams of raisins are not used in a full bag of trail mix?
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05/26/19

Differentiation
y= (x^2) / cos4x a) find dy/dxb) find the approximate change in y when x is increased from pi/4 to pi/4 + p, where p is small
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Maths Algebra 2 Logs

05/26/19

Evaluate log10(1/2) + log10(2/3) + log10(3/4) +log10(4/5) + ... + log10(99/100)
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Maths Prealgebra

05/25/19

A train travelled at an average speed of 150kph. How long did it take to travel 100km.
I'm studying for my finals and when I looked through my maths book, I came across this question which I couldn't figure out. PLEASE HELP ME ASAP
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05/24/19

Three whole numbers are each rounded to the nearest 10 the sum of the rounded number is 70 what is the maximum possible sum for the original three numbers
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Maths Probability

05/23/19

Numerical Reasoning
a box of chocolates includes 3 different types of chocolate. it contains twice as many caramels as strawberry creams. it also includes 50% more milk chocolate pennies than caramels. the net... more
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Maths Algebra 1

05/23/19

On Earth, a mahogany chair weighs 20 pounds. In Dimension X, the same mahogany chair weighs 95 pounds. What is the conversion from the 3 dimension to Dimension X? e=Earth weight
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05/23/19

PEMDAS is not a completely universal system?
8/2(2+2)= ?Technically this should be 16 but with the American system it would be 1 according to pemdas
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Maths Math

05/22/19

Devon drove at the same speed for 4 hours . He drove a total of 120 miles . How many miles did Devon drive in 1 hour ? Please I need answers quick πŸ˜‰
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05/22/19

How do you calculate this?
ΒΉβ„β‚‚β‚β‚„β‚Ž + ΒΉβ„β‚„β‚β‚†β‚Ž + ... + ΒΉβ„β‚‚β‚€β‚β‚„β‚β‚‚β‚€β‚β‚†β‚Ž + ΒΉβ„β‚‚β‚€β‚β‚†β‚β‚‚β‚€β‚β‚ˆβ‚Ž = ?
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Maths Algebra 1

05/22/19

how to find square roots of a number such as..14
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05/21/19

I never learned this skill
On one of the banks of the Chicago River, there is a water cannon, called the Water Arc, that sprays recirculated water across the river. The path of the Water Arc is given by the model = -0.006x2... more
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Maths Probability

05/21/19

A batch of 115 belts is made by machine A. The probability that a belt made by machine A is defective is 0.02
A batch of 115 belts is made by machine A. The probability that a belt made by machine A is defective is 0.02 (b) Show that the probability that this batch contains at least one defective belt is... more
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05/21/19

How to find the inductance
Hi, I cannot seem to find the exact equation to answer a question regarding a R-C? series circuit (resistor and coil?)R = 5Ξ© I = 20AVs = 200v, 50HzI need to calculate Z, the value of the inductor... more
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05/20/19

Second order differential equations
Question:Fine the continous and differentiable solution of the following equation:y''(x) + 2y(x)=f (x)Where:f (x)={0 if x <0, 1 if 0 <x <1, 0 if 1 <x}Satisfying the condition y (0)=0... more
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Maths Algebra 1

05/20/19

algebra equations
plan A cost $30 and 0.10 cent per text and Plan B cost $90. per month unlimited and plan C cost $50 dollars per month and 5 cents per text . All plans has unlmited calling. what is the independent... more
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Maths Algebra 2

05/20/19

The equation y-y1 = m (x-x1) cor different value of m and fixed (x1,y1) represent

Options a) a family of parallel linesb) a single line c) a family of lines which are not concurrent d) a family of concurrent lines
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05/19/19

What is the expected mean of ten throws of a 20-sided dice?
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05/19/19

Tangent of a Parabola
Find the value of c such that y=x+c is a tangent to the parabola y=x^2-x-12.
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05/17/19

I need to work out the elipse a half circle that is vertical leaves on to a pitched surface

Say the half circle had a radius of 800mm and it was casting back of to a pitched line of 45 degrees it would leave an elipse how do i work that out ? And is therr a set formula so i can change... more
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Maths Algebra 1

05/16/19

A maths problem that needs explanation of solving?
I have a specific calculation which I have done, to explain how to achieve it.This is the question:at LEAST 650 apples, 324 pears and 48 olives are required:company A, sells 130 apples, 36 pears... more
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05/14/19

how to work out 6- 5.738?
please show working out and how you arrived to the final answer
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05/14/19

how to work out 9 squared - 36 divided by 9?
please can working out be shown
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05/13/19

Percentages question that I am stuck on
One day at a school 70% of the students wore a polo shirt. 80% of the students wearing polo shirts were boys.What percentage of the students were boys who wore polo shirts?
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