# Mathematics

## Enter the interval equivalent to 2<x≤5 or x>7?

View details## If the square root of n^2 = n. What is n?

View details## A floor plan has a 68:1 scale. On the drawing, one of the rooms measures 3 and 3/8" by 1 and 3/4". Show answers to the nearest .01?

A floor plan has a 68:1 scale. On the drawing, one of the rooms measures 3 and 3/8" by 1 and 3/4". Show answers to the nearest .01? The actual dimensions would be:______ feet by:...

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## If cos^2x + sin^2x = 1 could 1+cos^2x = -sin^2x? used odd even to switch sin^2(-x) to -sin^2x?

View details## To what extent do you think the world would be disrupted if alternative math was introduced, where 2+2 equalled a variety of things? How?

View details## Balance Day Adjustments?

View details## Do math and science prove useful?

View details## How many kilograms of gasoline fill a 12.5-gal gas tank?

View details## How many years does a billion seconds make?

View details## If 5x^2-2x+10=0 then (x-1/2)^2=?

View details## Explanation needed?

When solving through the question, the answer 65 should actually mean "the greatest number of stirfry carbohydrates...to make the combination correct". It doesn't make sense. 65 sh...

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## Find a Formula for the transformation of the function in the form f(x)=log_b x which graph is:?

View details## Differentiation problem?

At 7:00 a.m. a truck is 100 miles due north of a car. The truck is traveling south at a constant speed of 40 mph, while the car is traveling east at 60 mph. How fast is the distanc...

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## Anyone knows about Deck Flooring Calculator?

View details## What grade is a 6 out of 12?

View details## Help solve?

View details## How to simplify 2sinxcosx+(sinx-cosx)^2/secx ?

View details## Can you guys help me solve number 2 and 3?

View details## La diferencia del cuadrado de un número y 10 es igual a 179?

por favor alguien que lo sepa...

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## Please help with this problem?

View details## How to simplify tanx/tanx +cotx ?

View details## Calling geniuses!!!!!!!!?

The equations y 2, y = 4x + 2, and y = -2x+ 10 form the sides
of a triangle.
a) Graph the triangle, and determine the coordinates of the vertices.
b) Calculate the a...

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## The horizontal bar shown is acted upon by the vertical forces F1 thru F4 as shown (cont'd below)?

Please calculate the horizontal distance from pt. O to line of action of the resultant of the given forces. Please show work....

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## What is the derivative of ln(x^3+2)-sinx?

View details## Linearizing an equation C = A^x*B^y?

I know how to do it if A = B with log rules so I get it in the form ln(C) = (x+y)*ln(A) which allows me to solve for x+y by utilizing my data for C,A,B and determining the slope wh...

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## The policy of getting patients out of log stay mental hospitals is called?

View details## How many three digit numbers have the sum of their digits as 23?

View details## Possibility Question with permutation or combinations?

If six cards are chosen at random from a standard deck of 52 playing cards. In how many ways can the cards be chosen if at least one of them is a diamonds cards?...

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## Can someone answer this math probability question?

1. If we have 3 babies what is the probability they’re going to be all boys?
2. If we roll 2 die at the same time what is the probability of getting less than 10 on the first r...

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## Stats Math Question?

Two dice are rolled. What is the probability that the numbers obtained add up to 9?...

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## Stats Math Question?

A coin is tossed five times. What is the probability that it lands tails exactly once?...

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## Stats Math Question?

A multiple choice exam consists of four questions, each with five possible, of which one is correct. If random guesses are made for each question, what is the probability of answer...

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## Empirical rule and standard deviation question?

Suppose that IQ scores have a bell-shaped distribution with a mean of 105 and a standard deviation of 13. Using the empirical rule, what percentage of IQ scores are at least 131? ...

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## Calculus differentiation word problem?

At 7:00 a.m. a truck is 100 miles due north of a car. The truck is traveling south at a constant speed of 40 mph, while the car is traveling east at 60 mph. How fast is the distanc...

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## Calculus differentiation problem?

A bug is walking around the circle x^2 + y^2 = 169. At a certain instant the bug is at the point (−5, 12) and its y-coordinate is decreasing at a rate of 3 units per second.
(a) ...

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## Standard deviation and empirical rule?

Suppose that grade point averages of undergraduate students at one university have a bell-shaped distribution with a mean of 2.56 and a standard deviation of 0.38. Using the empir...

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## Help, evaluate the limit?

I'm having trouble solving this. Can someone show me how to get the answer? Thanks...

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## Math question?

You have 140 pounds and 8 ounces of steak to serve 78 people, how many total ounces will each person get (assuming everyone will get the EXACT same amount of steak)?...

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## STATISTICS Homework HELP?

Alright, I've tried to calculate this with empirical rule formula and it's not correct. then I've tried with Chebyshev's theorem and it's wrong. what the hell. how to solve this? t...

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## Calc 2 region bounded questions hw help?

4) Let R be the region bounded by y=4-x^2 and the x -axis where 0 < x < 2
a) Use the method of disks to find the volume of the solid obtained by rotating R about the y-axis.
b) ...

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## CALC 2: 6.4 The Method of Cylindrical Shells Hw help?

Find the volume of the solid obtained by rotating the region enclosed by the graphs of y =sqrt(x) and y=x about the y-axis...

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## A plane can fly 345 mph in still air. It can fly 200 miles downwind in the same time amount it flies 145 miles upwind, find velocity of wind?

View details## Allen, Bob and Dan have stamps in a ratio of 12: 4 : 6. If bob scored 60 points how many points did they score altogether?

View details## A ball is tossed straight up from the edge of a 38 foot high building, with an initial upward velocity of 42 feet/second?

It's height after t seconds is h(t)=-16t^2+42t+38
How long before the ball hits the ground?(h(t))=0
How long before it reaches its maximum height?
How high will it go?...

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## Solve -19 = x - 4?

View details## Change the radical sqrt(3/8) into simplest radical form A/B sqrtC, where A,B, and C are integers.?

View details## Trigonometry?

it says: knowing that tg(-x)-1/2.....=sqrt2/2 and x E ]-3pi/2...[, determine the exact value of 5sen.....(3pi-x)
it would be easier to solve others if i knew how to solve this.
t...

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## When I make a value (eg k) the subject of the an equation, can i have that subject (e.g. K) on the right hand side as well? or only left?

13a =6a/15b-7b
my problem is getting rid of the a on the ring hand side....

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## -19 = x - 4?

View details## What value 18.00 rm?

View details## CALCULUS HELP!! Suppose f (x)=4f(x)+2x and f(3)=5 Use a linear approximation to estimate f(3.011)?

View details## Economics & calc homework question. Please help answer it. I'm confused what to do.?

View details## Math Help on Integers and Proofs!?

Assume 13a+b-5c=0 where a, b, c are integers. Show that if n≠0 is an integers such that n | a and n | c, then n | b....

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