03/07/19

how is the slope of -3 and 1/3 numerically related
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03/07/19

the sum of three consecutive number is 48. what are the smallest of those numbers
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03/05/19

For consecutive odd integers a and b, a > b > 0. If a^2 + b^2 = 202, what is the value of a?
I've found the answer to the question other ways, but I'm trying to understand why this method doesn't work:a2 + b2 = 202a2 + b2 - 202 = 0The equation is in form a2 + b2 - 2ab = 0. Therefore, 2ab =... more
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03/04/19

the sides of a triangle are 15cm 20cm and 21 cm long a line drawn to the side that is 21 cm long bisects the angle opposite that side. how long are the segments into which the side is divided
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02/27/19

MATH PLEASE HELP
A school has an art club, a drama club, and a cooking club. the ratio of the number of students in these clubs is given. art club to drama club 7 to 13. cooking club to art club 5 to 14. there are... more
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02/27/19

A cone with height h and radius r has volume V = 13πr^2h. If a certain cone with a height of 9 inches has volume V = 3πx^2 + 42πx + 147π, what is the cone’s radius r in terms of x?
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02/22/19

Part( after increase) is $32.20 Rate of increase is 15% The base is

I truly need help with this math problem, I’m trying to find several ways to arrive at my answer. But I’m coming up short can someone show me a way.
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02/16/19

Percentage of percent change
40% of the weight of wet timber is water.How many percentages does the water percentage need to decrease for the water percentage to hit 8%?My calculations get me 80% but my homework answers tell... more
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02/16/19

Percentage of percent change
40% of the weight of wet timber is water.How many percentages does the water percentage need to decrease for the water percentage to hit 8%?My calculations get me 80% but my homework answers tell... more
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01/13/19

What is the exterior angle of a decagon

I NEED TO KNOW!!!!!!!!!
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01/12/19

How to simplify trig identity tan^2x+sin^2x=sec^2x-cos^2x
Must simplify each side of the expression independent to find a common answer.
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01/04/19

what would the answer to -3x+y=6
i'm supposed to draw a graph to this equation, but first i must solve it and i don't know how i'm supposed to solve this? or even graph it i'm completely lost and my math teacher won't explain it... more
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01/04/19

The sum and the number of terms in an arithmetic sequence between two numbers

I’m troubled with this question—Given the arithmetic sequence 110,116,122,128, ..., obtain the number of terms between 400 and 600, and their sum.I’ve been given some instruction, but I can’t wrap... more
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01/02/19

what is the value of x in this equation 4x to the second power minus 196=0
what is the value of x 4x2 -196=0
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01/02/19

What are the coordinates of the point on the directed line segment from (-10,-3) to (1,7) that partitions the line segment into a ratio of 2 to 3?
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01/01/19

7$ off and i get 10% off??
you have a coupon good for $7 off the price of any large pizza. You also get 10% discount on any pizza if you show your student ID. How much more would you pay for a large pizza if the cashier... more
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12/31/18

Algebra question

A family has two cars during one particular week the first car consume 30 gallons of gas in the second consume 25 gallons of gas and the two cars and drove a combined total of 1675 miles in the sum... more
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12/28/18

six angles of a heptagon measure 107 degrees, 139 degrees, 131 degrees, 110 degrees, 145 degrees, and 128 degrees. what is the measure of the seventh angle?
please answer as fast as you can thank you :)
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12/27/18

The sum of three consecutive natural numbers is by 213 greater than twice the smallest of them. Please find the smallest of the three numbers!
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12/26/18

cos3x = 1- 3cosx Solve for x
what I did:cos(2x + x) = 1-3cosxused compound angle formulacos2xcosx - sin2xsinx = 1- 3cosxused double angle formulae for both cos2x and sin2x(1-2sin^2x)cosx - 2sin^2xcosx = 1-3cosxbut I'm stuck... more
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12/24/18

tan (45+x) = tan (45-x). Solve for x.

Grateful for any help. Pretty sure I'm supposed to use the compound angle formula so I tried it but then hit a dead end.
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12/18/18

write 6x+3y=12, in y=mx+b
I need some help with understanding how to 6x + 3y = 12 in slope intercept form
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12/16/18

Fraction Freak-Out
The denominator of a fraction is 5 more than the numerator. If both the numerator and the denominator are decreased by1, The resulting fraction is equivalent to three eighths; 3/8. Find the fraction.
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12/15/18

Confused with question

Genevieve is going to throw a rock from the top of a trail overlooking the ocean. When she throws the rock upward from 160 feet above the ocean, the function h(t)=-16t^2 +48t +160 models the h, and... more
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12/15/18

Trying to help my son with 10th grade geometry...
An airplane takes off at an 30 degree angle of elevation. The pilot needs to be 3000 ft in the air. How long would the hypotenuse of the triangle be in terms of feet?
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