7,189 Answered Questions for the topic Math Help

Math Help Math

08/01/17

Write an inequality that represents all possible values for the length of the rectangle. Then solve the inequality.
The width of a rectangle is 22 centimeters. The perimeter is at least 644 centimeters. Write an inequality that represents all possible values for the length of the rectangle. Then solve the... more
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Math Help Math

08/01/17

Which equation would you use to determine how many juice packs Mrs. Baker purchased? A. $2.99 − $1.19j = $0.30 B. $0.30j + $2.99 = $1.19 C. $0.30j + $1.19
Mrs. Baker purchased a number of juice packs at a cost of $0.30 each and a loaf of bread that cost $1.19. The total cost of her purchases was $2.99. Which equation would you use to determine how... more
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Math Help Math

08/01/17

Write an equation for this problem: Joe is 4 feet taller than one-third Bob's height. If Joe is 6 feet tall, who is taller?
A. 6 = 1 over 3 b + 4B. 4 = 1 over 3 b + 6C. 6 = 1 over 3 b − 4D. 6 = 2 over 3 b + 4  Is it B I am not sure
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Math Help Math

08/01/17

Which equation can you use to find the number of weekly withdrawals that she made? A. 335 − 15n = 155 B. 335 over n + 15 = 155 C. 335 − 15 = 155n D. 335
Caitlin had $335.00 in her bank account. She withdrew $15.00 each week to pay for a piano lesson. She now has $155.00. Which equation can you use to find the number of weekly withdrawals that she... more
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Math Help

08/01/17

if i have 278 dollars after joe took 30% how much did joe take? How is the math done?
Trying to reverse calculate in my company gives me 70 %  commission and keeps 30% for them so how did I find what it was before they took their share out.. so I know whether they are being honest
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Math Help Math

08/01/17

how much will each child have to contribute each week? A. $24 per week per child B. $15 per week per child C. $3 per week per child D. $7 per week per ch
Write and solve an equation for this problem: five children in the Woods family have decided to purchase an anniversary gift for their parents. They estimate the price of the gift to be $170. Each... more
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Math Help Math Calculus

07/31/17

Calculus Question
Determine where the curve y = x3+4x2-2x+1 is concave up and concave down.   Help!?
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Math Help Calculus

07/31/17

Calculus Question
Determine the extreme values of the function f(x) = x2-8x+9, where -1≤x≤5. What is the absolute minimum and the absolute maximum? 
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Math Help Math Calculus

07/31/17

Calculus Question
use the following partial graph of a polynomial function, with a local maximum at x = -4 and a local minimum at x =2 to answer the following question.B) State whether f'(-3.9) and f'(-4.1) are... more
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Math Help

07/31/17

Give the exact answer in terms of Pi and then calculate the required approximate answer using Pi .
The diameter of a CD is 3 in. How far does a point on the rim os this CD travel when the CD makes two-thirds of a complete revolution? ( Round your answer to two decimal places).
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Math Help

07/31/17

Write a word problem that could be solved with the equation 0.55n=3.30.
Write a word problem that could be solved with theequation 0.55n=3.30
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Math Help

07/31/17

A soccer uniform that normally sells for $45 is on sale for 30% off. Find the sale price.
A soccer uniform that normally sells for $45 is on sale for30% off. Find the sale price.
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07/31/17

Answer the situational problem involving ellipse and hyperbola
A road passes through a tunnel in the form of a semi-ellipse. In order to widen the road to accomodate more traffic,engineers must design a larger tunnel that is twice as wide and 1.5 times as tall... more
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07/31/17

Answer the situational problem involving ellipse and hyperbola
The arch of a bridge is a semi ellipse with a horizontal major axis. The span is 30ft and the top of the arch is 10ft above the major axis. The roadway is horizontal and is 2ft above the top of the... more
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Math Help

07/30/17

What are the dimensions? Geometry
If you were to walk around the perimeter of a particular building, you would cover 2436 ft. If this rectangular building is 146ft. longer than it is wide, what are the dimensions? in length and width. more
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Math Help

07/30/17

. Write as a unit rate: a fall of 80 feet in 2.5 seconds
. Write as a unit rate: a fall of 80 feet in 2.5 seconds
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Math Help

07/30/17

Use prime factors to find the LCM of 168 and 252. LCM=.........=...............
LCM=.........=...............
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Math Help

07/30/17

Choose the best interpretation of these results.
A popular music magazine has determined that the average length of a song is 3.75 minutes. A random sample of 50 songs of a new age instrumental genre is 4 minutes with a standard deviation of 0.75... more
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Math Help

07/30/17

A driver completes a trip of 240 miles at the rate of 30 mph, how fast would he drive back to average 40 mph round trip
Round trip average speed 
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Math Help

07/30/17

Jane Roznowski wants to invest some money now to buy a new tractor in the future. If she wants to have ​$225, 000 available in 5 ​years, how much do
Jane Roznowski wants to invest some money now to buy a new tractor in the future. If she wants to have $225,000 available in 5 years, how much does she need to invest now in a CD paying 4.95%... more
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07/29/17

Compare and contrast the following measures of dispersion (range, standard deviation) in terms of what each of these represent and in terms of the relative adva
Compare and contrast the following measures of dispersion (range, standard deviation) in terms of what each of these represent and in terms of the relative advantages/disadvantage of using one over... more
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Math Help Calculus

07/28/17

Calculus Question
Find the domain of y = sqrt 3x-5. Express your answer in interval notation.   Help!?
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Math Help

07/28/17

A wheelchair ramp is 22 feet long. If the horizontal distance of the ramp is 20 feet long, what is the vertical distance. Use the Pythagorean theorem
This is for my intermediate algebra online course. I could really use help on this word problem. And kind of help would be greatly appreciated. I can't seem to figure this out. 
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Math Help

07/26/17

Find the measure of the three angles.
The largest angle of a triangle measures 7 degrees less than 6 times the measure of the smallest angle. The middle angle measures four times that of the smallest angle.
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Math Help

07/26/17

Currency conversions
Suppose you travel from Brazil to the US and arrive with 730 Reals. Use the following table to determine how much the Reals are worth in US dollars. Currency Dollars per Foreign Foreign per... more
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