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All Questions
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230563 Questions
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827
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i need help
Cynthia's resting heart rate is 64 beats per minute. During a recent workout, she measured her heart rate to be 112 beats per minute. By what percentage did her heart rate increase during her workout?
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Guest
Jan 13, 2020
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957
2
i don't understand!!!
A rectangle stained glass window is 2 feet by 4 feet. A clear glass border is constructed around the stained glass window. The width of the border is equal and was made out of 7 square feet of clear glass. What is the width of the border.
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Guest
Jan 13, 2020
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634
4
+33
BROO ITS HARD FOR ME
My friend sets out walking at a speed of 3 miles per hour. I set out behind her 5 minutes later at 4 miles per hour.
When I start walking, how many miles has my friend traveled?
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Paresh247
Jan 13, 2020
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601
1
need help
One straight cut through a thick piece of cheese produces two pieces. Two straight cuts can produce a maximum of four pieces. Three straight cuts can produce a maximum of eight pieces. You might be inclined to think that every additional cut doubles the
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Guest
Jan 13, 2020
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664
3
Pls help me
My friend sets out walking at a speed of 3 miles per hour. I set out behind her 5 minutes later at 4 miles per hour.
For how many minutes will my friend have been walking when I catch up to her?
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Guest
Jan 13, 2020
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431
1
ASAP pls help
My friend sets out walking at a speed of miles per hour. I set out behind her minutes later at miles per hour.
When I start walking, how many miles has my friend traveled?
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Guest
Jan 13, 2020
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570
1
7) Find the equation of the line parallel to f(x) = -3/5x + 2 and goes through the point (-5, -1) in
7) Find the equation of the line parallel to f(x) = -3/5x + 2 and goes through the point (-5, -1) in
(a) Point-Slope Form
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Guest
Jan 13, 2020
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901
6
I need some Geometry Help Quick
In hexagon ABCDEF, AB = DE = 2, BC = EF = 3, and CD = AF = 8, and all the interior angles are equal. Find the area of hexagon ABCDEF.
The answers are not 22sqrt3, 16sqrt3, 20sqrt3, or 27sqrt2.
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Guest
Jan 13, 2020
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331
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8) Let f(x) = Can someone please solve this? Thanks!
8) Let f(x) = {x2 for x ≤ 1
{|x| for x > 1
(a) Graph the piecewise-function
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Guest
Jan 13, 2020
0
612
1
Math
The expression 12g, g gives the number of kilometers a car can travel using g liters of gasoline. How far can this car travel on 5 1/2 liters of gasoline?
ElectricPavlov
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Guest
Jan 13, 2020
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399
1
Help
(a) While travelling abroad, I bought identical bags of candy for friends. How many ways can I distribute the candy to my friends, so that each friend gets at least one bag of candy?
(b) I also bought different
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Guest
Jan 13, 2020
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717
1
i need help!!!
Suppose 5 men and 7 women are on a crowded elevator. At the next floor, four people get off the elevator. Find the probability that exactly one woman left the elevator.
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Guest
Jan 13, 2020
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1336
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I’m sorry for the trouble but can someone pls help
Kerri drives $150$ miles to visit her grandmother. She starts off driving $60$ miles per hour, but then encounters road construction and has to drive $20$ miles per hour the rest of the way. If she spends the same amount of time at the faster speed as at
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Guest
Jan 13, 2020
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636
1
i don't understand!!!
The edge of a cube is increased by 20%. What is the percentage increase in its surface area?
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Guest
Jan 13, 2020
-2
995
10
+33
DUDE PLS I NEED HELP pls ANSWER QUICK HEY PHILL PLS HELP
have a recipe that calls for $12$ ounces of butter. Unfortunately, I only have a teaspoon to measure my butter. A tablespoon holds $\frac12$ ounce of butter, and there are $3$ teaspoons in a tablespoon. How many teaspoons of butter do I need for my recipe?
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Paresh247
Jan 13, 2020
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508
1
i don't get it
If 55 percent of a group of people have brown hair and 80 percent of the same group do not have red hair, what fraction of those who do not have brown hair have red hair?
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Guest
Jan 13, 2020
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468
1
i need help
Write an equation of a parabola with the given vertex and focus.
vertex (-1,3); focus (-1,4)
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Guest
Jan 13, 2020
0
2649
2
Elliot takes a roast out of the oven when the internal temperature of the roast is 165F
Elliot takes a roast out of the oven when the internal temperature of the roast is 165°F. After 12 minutes, the temperature of the roast drops to 140°F.
The temperature of the room is 70°F.
How long does it take for the temperature of the
read more ..
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Guest
Jan 13, 2020
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480
1
What is the average rate of change of f(x) from 1 to 4?
I need help please ASAP!!!!!
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Guest
Jan 13, 2020
0
468
1
find the X
2*6+2*x=48
ElectricPavlov
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Guest
Jan 13, 2020
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2520
1
A sample originally contains 24 grams of a radioactive isotope. After 18 days, 18.8 grams of the isotope remains in the sample.
A sample originally contains 24 grams of a radioactive isotope. After 18 days, 18.8 grams of the isotope remains in the sample.
What is the half-life of the isotope?
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Guest
Jan 13, 2020
0
931
1
A sample originally contains 24 grams of a radioactive isotope. After 18 days, 18.8 grams of the isotope remain in the sample.
A sample originally contains 24 grams of a radioactive isotope. After 18 days, 18.8 grams of the isotope remains in the sample.
What is the half-life of the isotope?
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Guest
Jan 13, 2020
0
880
1
What is the average rate of change of f(x) from 8 to 64?
Am I correc? Please help ASAP!
ElectricPavlov
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Guest
Jan 13, 2020
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