10/13/16

find a number less than 3, 6 times 2
Find a number that is 3 less than, 6 times 2
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10/13/16

Common core
A bushel can contain 149,637 soybeans or 81,183 kernels of corn. Jackson says there are 48,454 more soybeans than kernels of corn per bushel. Use rounding to estimate the difference. Explain if... more
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10/13/16

Maria can tar a roof in 11.1 hours. One day her friend Micaela helped her and it only took 5.6 hours. How long would it take Micaelea to do it alone?
Have this on math homework and don't know what to do!!
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10/13/16

How to use the derivative to see if the function is invertible and how to find the inverse of the derivative
So the function I was given is f(x)= 2x^5 +3x^3+x   it is pretty easy to find the derivative using the power rule however on part b of the question it asks how can you use your answer... more
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10/13/16

Given: BF bisects ?AFC and ?CFD??BFC Prove:?AFB ? ?CFD
 Given: BF bisects ∠AFC and ∠CFD≅∠BFC Prove:∠AFB ≅ ∠CFD  
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10/13/16

Angles question
A 30-60-90 degree triangle has side lengths with the ratio 1:2:\sqrt3. A $\footnotesize{45-45-90 degree triangle has side lengths with the ratio 1:1:\sqrt2. a. What is the perimeter of a basic... more
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10/13/16

Two-colmn Proof - Geometry - Please Help ASAP
This is supposed to be a two column proof. It has statements on one side and reasons on the other.   Given:Triangle ABC with angle C is right angle Prove:Angle A and angle B are... more
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10/12/16

In s triangle, angle A is twenty degrees more than twice times as angle B and 45 degrees less than angle C. Find the measure of each angle.
all the measures must add up to 180 degrees. The shape is a triangle and you have to figure out the dimensions then describe he triangle if possible, thank you.
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10/12/16

what is the domain of x^4-7x^3+7/(3x+8)(x-4)
answer should be in set notation
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10/12/16

how to take the derivative of a trig function if the trig function is the exponent
So I was given 4^cos(x) and I approached it like a power functions so I dot the derivative (cos(x)*4^cos(x)-1) * -sin(x) but I got it wrong. The only other thing I could think of was taking the log... more
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10/12/16

"Angle 1 and angle 2 are supplementary. Angle 3 and 4 are supplementary. Angle 2 is congruent to angle 3. Prove angle 1 is congruent to angle 4
 "Angle 1 and angle 2 are supplementary. Angle 3 and 4 are supplementary. Angle 2 is congruent to angle 3. Prove angle 1 is congruent to angle 4"
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10/12/16

find the probability that the number x of correct answer is more than 2
assume that random guesses are made for five multiple-choice question on an ACT test, so that there are n=5 trials. each with probability of success (correct) given by p=0.20. use the binomial... more
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10/12/16

FindING the approximation of a sqroot
A) f(x) = sqr (x) Find the tangent line for x = 25.   B) using the tangent line in a, find the approximation of sqr (26)   I know how to do part A but I don't know how to do part B. How would... more
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10/11/16

help me please to check my grammar,
      After her mother discovered she smoked, and put makeup Lina felt that the house such as imprisonment when and when she in school was free. Lina said she wanted to go out with her friends for... more
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10/11/16

I'm simplifying -2 to the -2nd power. when I change it to 1 over -2 to the 2nd power should the -2 also go positive?
-2-2 =  1   ?          -22   or   -2-2 =  1   ?            22
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10/11/16

triangle number 1 has 4 dots on perimeter and 0 dots on inside
2nd triangle has 8 dots on perimeter and 1 dot on inside 3rd triangke has 12 dots on perimeter and 4 dots on inside  The 6th triangle will have how many dots on perimeter and on the inside ?
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10/11/16

The point (1/5, -1/5) lies on the terminal arm of an angle A in standard position. The exact value of secA is?
The point (1/5, -1/5) lies on the terminal arm of an angle A in standard position. The exact value of secA is?
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10/11/16

5 cards are selected from a fair deck. What is the Probability that they contain at least 4 reds?
5 cards are selected from a fair deck. What is the Probability that they contain at least 4 reds?   Please & Thanks!!
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10/11/16

how do you take the fourth derivative? (I've never learned this)
So it says the functions whose fourth derivatives are equal to cos t are of the form t+C, where C is any constant.   This is a true and false problem but I don't know how to prove it wrong... more
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10/11/16

I'm confused on taking a derivative of a periodic funciton
So the function is y= 5+4.9 cos(pi/6 *t) and it asks me to find the derivative dy/dt, but I don't know how to find it for a periodic function. please help me?  
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10/11/16

please understand my doubt
The digit in the units place of a number is equal to the digit in theten place of half of that number and the digit in the ten place of thatnumber is less than the digit in units place of half of... more
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10/11/16

Napoleon once said "The word impossible is written in the dictionary of fools". Justify this statement with reference to the life of Napoleon
Napoleon once said "The word impossible is written in the dictionary of fools". Justify this statement with reference to the life of Napoleon
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10/11/16

The inequality: the absolute value of x +c<0 has no solution is sometimes, always or never true when x is any real number and c is any whole number
need to explain reasoning and have examples and counterexamples
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10/11/16

The solution of : the absolute value of x+1 is always, sometimes or never true when x is any real number?
need to explain reasoning and have examples and counterexamples
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10/11/16

Permutations and Combinations
A student downloaded 5 MUSIC FILES to a portable MP3 player. In how many different orders can the songs be played? 
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