01/21/18

Find how many of each coin are there
 A change purse contains $6.55 in nickels and quarters. If the number of dimes is 5 more than the number of quarters, how many of each coin are there?
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01/21/18

Multiply & Simplify
(5x^(3)+x^(2)-5x)(Y+7)
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01/21/18

How can I make this into a rational equation?
You have 65 minutes to take an exam of 24questions. After you finish the first 13 questions,you realize you must answer the remainingquestions twice as fast to finish theexam.How many questions per... more
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01/20/18

If sides of a triangle are in A.P then prove that cos A = (4c-3b)÷2c
Here a,b,c are sides of triangle and A,B,C are angles of triangle.a,b,C are in A.P
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01/19/18

Prove that, Cosec2θ - Sec2θ = a2/b2 - b2/a2
Prove that, Cosec2θ - Sec2θ = a2/b2 - b2/a2
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01/18/18

If sec theta=X + 1 upon 4 x prove that sec theta + tan theta equal to 2x or one upon 2x
There is no hint
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01/18/18

Area: if the length of a rectangle is 5 units less than three times the width and the area is 28 square units find the length and the width of this rectangle
need help finding the length and width of the problem    Area: if the length of a rectangle is 5 units less than three times the width and the area is 28 square units find the length and the... more
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01/16/18

Finding the sample mean and the sample standard deviation
X|26 |27| 28 | 29 | 30|31 |32 f| 3 | 4 | 16 | 12 | 6 | 2 | 1 Compute the sample mean and the sample standard deviation. Show your work.
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01/16/18

How many gallons of paint will I need
Annie wanted to paint her living room walls blue. The room is 15 feet by 25 feet by 9 feet high. How many whole gallon cans of paint will she need if each gallon covers 350 square feet (ignore... more
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01/16/18

state the number of complex roots, the possible number of real roots, and the possible rational roots
For 2x5 –5x3 + 12 = 0,
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01/16/18

200 people are asked how many siblings they have
200 people are asked how many siblings they have
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01/15/18

how many adults and how many kids
at a fair tickets cost 4 dollars for an adult and 1.50 per kid when the total revenue of that day is $705 how many adults attended and how many kids attended
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01/12/18

Divide Rs. 93 among Rukhsana, Rehana and Farzana in the Ratio of 1/2 : 1/3 : 1/5 (Ratio and Proportions)
Plz Write  Steps too, thanks  so much
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01/12/18

given: abc with ab=c, bc=a, ac=b. prove: a/sinA =b=sin B=c/sin c
answers could be: a)definition of cosine in right triangle b)definition of sine in right triangle c)definition of tangent in right triangle d)corresponding sides of congruent triangles are... more
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01/11/18

what is the relative location of salt lake city Utah?
Relative location is like the relationship of a place to other places.
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01/11/18

Algebra 2 - Word problem
Gus buys a new car for $35,000. Each year, the car’s value depreciates 12% (this means it loses 12% of its value each year). Gus models the value of his car for any given year after purchase using... more
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01/10/18

What is the probability of drawing two blue marbles if the first marble is placed back in the bag before the second draw?
Yellow 2 Pink 3 Blue 5  Total: 10 Give answer in ratio , reduced to simplest terms.   Hint: multiply the probability of the first event by the probability of the second event to get your... more
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01/10/18

The sum of the digits of a two digit number is 7. When the digits are reversed, then the number is decreased by 9.
find the number 
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01/10/18

How to do hypotnus leg?
Hypotenuse leg proofs 
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01/10/18

Luke went fishing and caught a trout that weighed 2.5 pounds. How much did Luke's fish weigh in ounces?
Please show your work  
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01/10/18

Is there a way to classify pentagons, like we do triangles and quadrilaterals? If no, why not?
Triangles are classified by side length and angles, and quadrilaterals can be classified into groups like trapezoid, kite, rhombus, etc. I have not found any similar ways for pentagons online... more
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01/10/18

What is the equation of a parabola with a vertex at (2,2) and directrix at y=-2
Anyone can help? How to solve this problem, im confused on working backwards.
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01/09/18

Casey can peel k apples in 10 minutes. In terms of k how many apples can he peel in one minute?
How many apples can Casey peel in m minuter? In terms of k how long does it take Casey to peel one apple? How may minutes will it take Casey to peel p apples?  
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01/09/18

In a triangle ABC, a/b = 2/3 and sec^2A =8/5
Find the number of triangles satisfying these conditions  Options- 0,1,2,3
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01/09/18

A lady has 55 earrings in her jewel box: 21 pair of platinum earrings, 15 pair of gold earrings and 17 pair of silver earrings. How many earrings
The lights went out and she is completely in the dark. 
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