02/23/18

Help again question in description
The sum of the digits of a two-digit number is 13. The units digit is one more than twice the tens digit. Find the number.
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02/23/18

Precalc problem- finding all real solutions
Can someone help me find the solutions of this equation? I tried a few times but I can't seem to get the right answer.   1 +          2x         =  2     +  4         (x + 7)(x + 6)   x+7     x+6... more
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02/23/18

Assume that x=x(t) and y=y(t). Let y=x^2+5 and dx/dt=3 when x=2. Find dy/dt when x=2
Can someone help me with this im really confused with this problem.
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02/23/18

Precalculus Math Problem
I'm not sure how to approach this problem and I'd really appreciate any help!If a ball is thrown directly upward with a velocity of 36 ft/s, its height (in feet) after t seconds is given by y = 36t... more
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02/23/18

If v = <-2, 5> and w = <3, 4>, then w - v =?
Write your answer as a vector in the form <x, y>.
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02/23/18

A baseball is thrown upward and its height after t seconds can be described by formula h(t)=−16t^2+50t+5. Find the maximum height the ball will reach.
 Can you help me with this question? I'm having trouble...
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02/23/18

A sphere has a radius of 3 inches. What is the volume of the sphere rounded to the nearest tenth? Use 3.14 for pi.
The answers to choose from are 28.3 in3, 88.7 in3, 113.0 in3, 211.3 in3 
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02/23/18

4186.67cubic centimeters1) What is the approximate diameter of the volleyball? 2) Describe what steps you used to come up with your answer.
i dont know what to put here i just want you to answer the stupid question  
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02/23/18

if there is a radius of 8 feet and a total area of 12.4 square feet what is the approximation of pi used to calculate this area?
I need help knowing if this answer is solvable or not.
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02/23/18

Ann had a 24-karat gold necklace that weighed 2.3 grams. She sold it for $123.51. What was the price per gram of her necklace?
24-karat gold necklace Weighs 2.3 grams Sold it for $123.51. What was the price per gram of her necklace?
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02/23/18

what is the answer for: 63=r-5
answer this please i am having trouble with it  
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02/23/18

if 7 people comes to my party and i have 5 bags of chip how much does each person gets
im having a party and 7 people are coming, if i have 5 bags of chips how much bags of chips will each person gets
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02/23/18

Rockets launched from 110 feet with a velocity of 166 feet per second.
A toy rocket is launched from the top of a building 110 feet tall at an initial velocity of 166 feet per second.   a) Give the function that describes the height of the rocket in terms of time... more
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02/23/18

at a fruit stand an apple and pear cost 25 cents a pear and bannana cost 19 cents and an apple and a bannana cost 16 cents how much does each cost?
 please help like now i have to know it now PLEASE
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02/23/18

1/3 of a number is 8. What is 1/4 of the number?
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02/23/18

A sircular swimming pool is 21 feet in diameter. What is the circumference of the swimming pool
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02/23/18

Starting with 145 grams of a radioactive isotope, how much will be left after 4 half lives?
The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with 145 grams of a radioactive isotope, how much will be... more
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02/22/18

Y=2/3x+2 find the value for x
Find the value for x
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02/22/18

Starting with 160 grams of a radioactive isotope, how much will be left after 5 half lives?
The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with 160 grams of a radioactive isotope, how much will be... more
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02/22/18

compare the electrostatic and gravity force between a proton of charge +e and of mass M at a distance r fr
Please i was asked to solve this but it seems quite difficult for me, compare the electrostatic and gravity force between a proton of charge +e and of mass M at a distance r from an electron of... more
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02/22/18

What will the area be after 11 years
a certain forest covers an area of 1800km^2. Suppose that each year the forest decreases by 5.75%. What will the area be after 11 years?   round your answer to the nearest square kilometer 
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02/22/18

How to solve log word problem
A superhero is rendered powerless when exposed to 70 or more grams of a certain element. A 650 year old rock that originally contained 350 grams of this element was recently stolen from a rock... more
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02/22/18

how long after the ball is thrown does it but he ground
a ball is thrown from a height of 197 feet with an initial downward velocity of 21 ft/s.   the balls height h (in feet) after t seconds is given by the following     h=197 -21t-16t^2   how... more
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02/22/18

What were the punic wars
What were the Punic wars
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02/22/18

A number increase by 10% then decrease by 10% will the result be greater than less than or equal to
Percent change   
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