Tutors Answer Your Questions about Surface-area (FREE)
Question 1062742: One platy requires 5 liters of water to live healthfully. What is the maximum number of healthy platies that can be kept in a rectangular aquarium that measures 30 cm by 40 cm by 30 cm?
(Hint: 1 cubic centimeter=1 mL, 1 L=1000 mL)
The maximum number of healthy platies that can be kept in the aquarium is __________.
Enter the whole number that correctly fills in the blank in the previous sentence, like this: 42
Click here to see answer by Alan3354(69443)   |
Question 1062744: A regular decagon is inscribed inside a circle. The perimeter of the decagon is 50 units.
A: What is the approximate measure of the radius (rounded to the nearest hundredth of a unit)?
B: What is the approximate area of the circle (rounded to the nearest whole square unit)?
Select only one answer each for parts A and B.
A: 8.09
A: 2.63
A: 7.69
A: 4.25
B: 22
B: 186
B: 206
B: 57
Click here to see answer by josgarithmetic(39617) |
Question 1062786: Amy covered an old garden with gravel. She bought 500 kg of gravel and it covered a plot that measured 12 m by 3 m. How many kilograms of gravel did she use for each square meter? Round to the nearest tenth.
Click here to see answer by ikleyn(52781)  |
Question 1062789: A regular 16-gon is inscribed inside a circle, as shown in the figure. Sixteen congruent isosceles triangles are created by connecting the center of the circle to each vertex of the 16-gon. The base length of one of the isosceles triangles is b, and the height is h.
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What is the area of the 16-gon?
A16-gon= __________ 1/2bh
*[illustration decagon.png]
Click here to see answer by Edwin McCravy(20055)  |
Question 1062790: A regular decagon is inscribed inside a circle. The circle has a radius of 6 units.
A: What is the approximate measure of the apothem of the decagon (rounded to the nearest hundredth of a unit)?
B: What is the approximate area of the decagon (rounded to the nearest whole square unit)?
Select only one answer each for parts A and B.
A: 3.71
A: 1.85
A: 5.71
A: 3.90
B: 111
B: 106
B: 113
B: 75
Click here to see answer by Boreal(15235)  |
Question 1062172: Sarah is renovating her kitchen and has decided to use tiles on her countertop which is 83cm by 203cm. The tiles are octagonal and square in a pattern where four octagons around one square. The square tiles are 3cm along one side.
(a) Estimate the number of tiles they will need to cover the countertop.
(b) Each square tile costs $0.55 and each octagonal tile costs $0.78. Estimate the cost of the tiles to cover the countertop.
Click here to see answer by jorel1380(3719)  |
Question 1062887: One platy requires 5 liters of water to live healthfully. What is the maximum number of healthy platies that can be kept in a rectangular aquarium that measures 30 cm by 40 cm by 30 cm?
The maximum number of healthy platies that can be kept in the aquarium is __________.
Click here to see answer by solver91311(24713)  |
Question 1062887: One platy requires 5 liters of water to live healthfully. What is the maximum number of healthy platies that can be kept in a rectangular aquarium that measures 30 cm by 40 cm by 30 cm?
The maximum number of healthy platies that can be kept in the aquarium is __________.
Click here to see answer by Alan3354(69443) |
Question 1062886: A regular decagon is inscribed inside a circle. The perimeter of the decagon is 50 units.
A: What is the approximate measure of the radius (rounded to the nearest hundredth of a unit)?
B: What is the approximate area of the circle (rounded to the nearest whole square unit)?
Select only one answer each for parts A and B.
A: 8.09
A: 2.63
A: 7.69
A: 4.25
B: 22
B: 186
B: 206
B: 57
Click here to see answer by Boreal(15235) |
Question 1062886: A regular decagon is inscribed inside a circle. The perimeter of the decagon is 50 units.
A: What is the approximate measure of the radius (rounded to the nearest hundredth of a unit)?
B: What is the approximate area of the circle (rounded to the nearest whole square unit)?
Select only one answer each for parts A and B.
A: 8.09
A: 2.63
A: 7.69
A: 4.25
B: 22
B: 186
B: 206
B: 57
Click here to see answer by ikleyn(52781) |
Question 1062980: A contractor is examining a set of blueprints for a new home. He determines that 1 inch on the blueprint represents 20 feet in real life.
If a bedroom measures 0.5 inches by 0.6 inches on the blueprints, what will be its measurements in real life?
The actual dimensions of the bedroom are __________ feet by __________ feet.
Click here to see answer by josmiceli(19441)  |
Question 1062981: A triangular bench is modeled by △ABC, in which m∠C=50°, AC=3.5, AB=2.81, and BC=1.4.
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Wayra must buy enough fabric to cover the entire bench.
Assuming the given measurements are in yards, how much fabric must he buy?
Approximately __________ square yards of fabric are needed.
Click here to see answer by ikleyn(52781) |
Question 1063100: Valeria is filling her new fish tank with water. The tank measures 36 inches by 13 inches by 24 inches. She has a 3-gallon bucket that she can fill at the sink and then pour into the tank.
What is the minimum number of times Valeria needs to fill (or partially fill) the 3-gallon bucket in order to completely fill her fish tank? (Hint: There are 231 cubic inches in a gallon.)
She needs to fill up the 3-gallon bucket at least __________ times in order to completely fill her tank.
Click here to see answer by Boreal(15235) |
Question 1063101: The Great Pyramid of Giza has a length and width of 230.4 meters, and it has a height of 138.8 meters. A full-scale model of the pyramid will be built, and materials for the model will be delivered in trucks that measure 13 meters by 8 meters by 40 meters.
How many truckloads will be needed to deliver all of the materials for the model?
At least ___________ truckloads will be needed to deliver all of the materials.
Click here to see answer by ikleyn(52781) |
Question 1063474: the slate of a rectangular pool table has a width of 4 feet, a length of 8 feet, and a thickness of 2 inches.
a) find the volume of slate removed for each pocket.
b) find the volume of the slate in cubic feet
c) If 1ft3 of slate weighs 166.6 lbs, what is the weight of the slate?
Click here to see answer by addingup(3677)  |
Question 1063581: i have a digram with a square the length of each side is 10cm , and it is asking me to calculate the size of the reflex angle AED with the angle is 7.1 cm from A to E and fromE to D it is 45 degrees can you please instruct me how to get the answer thank you
Click here to see answer by MathTherapy(10552)  |
Question 1064000: Figure 1 is a square with a side length of 5 units while Figure 2 is a triangle with sides of 7, 9, and 10 units. A perpendicular segment from the side that measures 9 units is drawn to the opposite vertex, and has a length of 6.8 units.
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Which statements about these two figures are true?
There is more than one correct answer choice. Select all correct answer choices.
Figure 2 has an area greater than the area of Figure 1.
Figure 2 has an area of 30.6 units2.
Figure 2 has an area of 23.8 units2.
Figure 1 has an area of 20 units2.
Figure 1 has an area of 25 units2.
Figure 1 has an area greater than the area of Figure 2.
Click here to see answer by josgarithmetic(39617) |
Question 1064074: ΔABC has vertices at A(8,3), B(7,5), and C(2,4). Point D, located on AC¯ at approximately (6.7,3.22), is the intersection of the altitude drawn from B to AC¯.
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The area of △ABC is _____ units2.
Click here to see answer by josgarithmetic(39617) |
Question 1064074: ΔABC has vertices at A(8,3), B(7,5), and C(2,4). Point D, located on AC¯ at approximately (6.7,3.22), is the intersection of the altitude drawn from B to AC¯.
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The area of △ABC is _____ units2.
Click here to see answer by MathTherapy(10552) |
Question 1064068: Square ABCD has vertices at A(−1,3), B(0,7), C(4,6), and D(3,2).
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What is the area of the square when rounded to the nearest whole number?
18 units2
19 units2
17 units2
16 units2
Click here to see answer by ikleyn(52781) |
Question 1064064: ΔABC has side lengths, in units, of AB=6, BC=7, and AC=10. The segment BD is an extension of side BC such that AD¯⊥CD¯ and AD≅5.9.
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The area of △ABC is approximately _____ units2.
Click here to see answer by jorel1380(3719) |
Question 1065263: I have two questions involving solving the area of a rectangle.
Question #1:
The area of the rectangle is 32a^3b^4 square units. Find the width of the rectangle.
The length of the rectangle is 4a^2b.
What is the width of the rectangle?
Question #2 correlates to question 1.
The length of a table is three times as long as its width. Suppose the width of the table is 5x+2. What is an algebraic expression for the length of the table?
Click here to see answer by Alan3354(69443) |
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Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840
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