A rock was thrown from the top of a building that is 192 feet tall. it reached its maximum height of 256 feet 2 seconds after it was thrown. after how many seconds will the rock hit the ground?
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03/08/18
A shopkeeper buys books for $720. If the cost per book was $5 less, the number of books bought for $720 would be 2 more. Write equation and solve.
I know what the question is asking, but I am struggling on writing the formula, therefore I cannot solve the problem. Could you help me out?
03/08/18
How tall is that flag pole to the nearest foot?
A 12-foot tall house casts a shadow that is 9 feet long. At the same time, a nearby flag pole casts a shadow that is 15 feet long. How tall is that flag pole to the nearest foot?
03/08/18
If x and y are perfect squares such that x + y = 65 and x > y, what is the least possible value of x − y?
The answer is 33 but I don't the fast solution.
02/12/18
word problem
mark is selling tickets to a spring musical. on the first of ticket sales the school sold 2 adult tickets and 8 child ticket for a total of $138. The school took in $202 on the second day by...
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02/12/18
Math Question
If Ben invests $4500 at 4% interest per year, how much additional money must he invest at 5 1/2 % annual interest to ensure that the interest he receives each year is 4 1/2 % of the total amount...
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02/12/18
A plane can fly 300 miles downwind in the same amount of time as it can travel 210 miles upwind. Find velocity of wind if plane can fly 225 mph in still air
Solve and verify answer
02/12/18
Two trains leave the same station. At what time exactly will they meet?
Two trains leave the same station, the first one at 1.00pm with speed 40mph and the second one, 45 minutes later, with speed 55mph. At what time exactly will they meet?
02/12/18
Two fair dice are rolled, find the probability that the sum of the dice is 10, given that the sum is greater than 3
need help
02/12/18
A rectangular painting is three times as long as it is wide the area of the picture is 588inches. Find the dimensions of the painting
A rectangular painting is three times as long as it is wide. The area of the picture is 588 in^2. find the dimensions of the painting
02/12/18
The length of a rectangular piece of land is 35ft more than four times its width. The perimeter is 770ft. Find it’s dimensions.
solve width and length
01/18/18
Write expressions for each calculation; expression for Abby's calculation and Expression for Leah's calculation
Abby and Leah go on a 6-hour drive for 396 miles at 66 mph. After t hours, Abby calculates the distance remaining by subtracting 66t from 396, whereas Leah subtracts t from 6 then multiplies by 66.
01/18/18
the length of a rectangle is five more than twice the width the area is 250 square inches what is the perimeter
Working with factoring need to solve trinomials
01/09/18
You have a cylindrical oil tank 190 ft across on the inside and 80 ft high its now filled with 75% oil. You calculated that it contains 35,800 cubic feet of oil
Is this correct?
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12/13/17
Inverse of functions
A)Let F(x)=ex+3 find the inverse of the function
b)let f(x)=log3√x ,for X >0
show that f-1(x)=32x
12/13/17
Use your model to determine the atmospheric pressure at an altitude of 3700 meters.
Atmospheric pressure decreases by about 15% for every 1000 meters you climb. The pressure at sea level is 1013 millibars (a unit of pressure). Construct an exponential model to represent the...
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10/12/17
Figuring out total number of students
On the first day of the semester, a history class contains an equal number of male and female 46. students. Eight male students drop the course before the end of the semester leaving twice as many...
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10/12/17
The length of...
The length of rectangular picture is 3 times as long as the width. If the area of the picture is 300 square inches, find the length and width of the picture.
The length is ___in
The width is...
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10/12/17
The length of rectangular garden is 5 feet longer than the width. If the area of the garden is 24 square feet, find the length and width of the garden.
The length of rectangular garden is 5 feet longer than the width. If the area of the garden is 24 square feet, find the length and width of the garden.
The length is _____ ftThe width is ____ft
10/03/17
Write a compound inequality that represents the possible elevations E of land in the United States.
The highest point in the United States is Mount McKinley in Alaska at an elevation of 6198 meters. The lowest point in the United States is Death valley, California at an evevation of -86 meters....
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10/03/17
A math textbook sold for a math class was on sale for $210. This was 15% off the original price. What was the original price? Round your answer to the nearest c
..............
10/02/17
Forged Signaute or not Probability
A document is signed with an ElGamal signature. The probability that a signature is forged is (.1). Find the probability that at least one of the three Rob’s signatures is forged.
04/26/17
Andrew needed 14 gallons of paint to cover a 430 square foot structure. Now he will be painting a 700 square foot structure. How many gallons he need?
i need answers please
04/26/17
Parallel Lines
The admission cost to enter a fair is $5. The cost to ride each ride at the fair is $1.50. Julie received a ½-off coupon that applies to the admission price. Julie decides to graph the total cost...
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