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MATH SOLVE
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Find the arc length of a central angle of 90° in a circle whose radius is 4 inches.
General
2 months ago
The figure is made up of 2 rectangles and 2 right triangles.What is the area of the figure? 132 units2 156 units2 168 units2 216 units2A rectangle with a length of 15 and a height of 4. A rectangle with a length of 6 and a height of 4 is atop the first rectangle. A triangle with a short leg length of 4 is atop the second rectangle. A large triangle is on top of the first rectangle and next to the second rectangle.
General
2 months ago
Given quadrilateral RSTU, tell which sides (if any) are parallel and which are perpendicular for the coordinates of the vertices.R(-1,1), S(1,-2), T(4,0), U(3,3)
General
2 months ago
Solve the equation by completing the square. Round to the nearest hundredth if necessary. x^2 +3x -5 = 0. 1.19, –4.19 –8.75, 5.75 1.66, 2.69 1.05, –4.05
General
2 months ago
What is the percentage of sugar in the syrup made of 10 kg of water and 2 kg of sugar?
General
2 months ago
A water tank is in the shape of a right circular cylinder with a height of 20 feet and a volume of 320π cubic feet. What is the diameter, in feet, of the water tank?
General
2 months ago
Justin recently drove to visit his parents who live 240 miles away. On his way there his average speed was 11 miles per hour faster than on his way home (he ran into some bad weather). If Justin spent a total of 8 hours driving, find the two rates.
General
2 months ago
A grocer wishes to blend two different coffee brands because he wants to make a blend of 480 pounds to sell at $2.68 a pound. If he uses a brand of coffee worth $2.50 a pound with another brand worth $2.80 a pound, how many pounds of each does he use?
General
2 months ago
Prove the divisibility of the following numbers: 25^7+5^13 by 30
General
2 months ago
A computer program consists of two blocks written independently by two different programmers.the first block has an error with probability 0.2. the second block has an errorwith probability 0.3. if the program returns an error, what is the probability that there isan error in both blocks?
General
2 months ago
A father and his son can clean the house together in 9 hours. When the son works alone, it takes him an hour longer to clean than it takes his dad alone. Find how long it takes the son to clean alone.
General
2 months ago
Water is drained out of tank, shaped as an inverted right circular cone that has a radius of 4cm and a height of 16cm, at the rate of 2 cm3/min. At what rate is the depth of the water changing at the instant when the water in the tank is 8 cm deep? Show all work and include units in your answer. Give an exact answer showing all work and include units in your answer
General
2 months ago
Can someone please help me on this ASAPIn the figure k>0. (a) Is ABC PQR? Support your answer with a theorem or postulate.(b) How does the area of PQR compare to the area of ABC? Justify your answer.
General
2 months ago
The time, in seconds, that it takes a pendulum to swing back and forth is modeled by the equation below.f(l)=2pi√l/32 where l is the length of the pendulum in feetWhat is the length of a pendulum that takes 2.4 pi seconds to swing back and forth?Thank you!!
General
2 months ago
Reza is building a cone-shaped storage container. The container has a radius of 5.5 feet and a slant height of 6 feet. If Reza wants to paint the outside of the container including the base, how many square feet does he have to paint? Round to the nearest whole number.
General
2 months ago
SAT Scores Group 1 1520 1630 1480 1580 1400 1300 1700 1610 1580 1520 SAT Scores Group 2 1510 1480 2100 1800 1300 1250 1400 1430 1390 1520 SAT Scores Group 3 1620 1700 1520 1510 1530 1430 2000 1800 1410 1390 SAT Scores Group 4 1480 1570 1400 1800 1930 2150 1340 1580 1530 1610 The SAT scores of 4 groups of 10 students are shown. Which group has the greatest range?
General
2 months ago
Does each equation represent exponential decay or exponential growth? Drag and drop the choices into the boxes to correctly complete the table. Note: If an equation is neither exponential growth nor exponential decay, do not drag it to the table.Exponential Decay Exponential Growthoptions: H=5.9 (0.82)^ty=0.8 (3.6)^tf(t)=0.72 (15)^tA=4/9 (8)^tA= (4/3)^tH= 7/2 (5/6)^tg(x)= 0.3(x)
General
2 months ago
Is ABC~LMN?If so, name which similarity postulate or theorem applies.
General
2 months ago
Please Help me!!!!!!What is the quadratic regression equation for the data set?x | y2,|10.14,|7.36,|5.97,|5.111,|6.312,|8.215,|8.8A. yˆ=0.093x2−1.586x+12.383B. yˆ=−0.093x2−1.586x+12.383C. yˆ=−0.093x2+1.586x−12.383 D. yˆ=0.093x2+1.586x−12.383
General
2 months ago
What is log(21/x2) written in expanded form?log 21−2 log x2 log x−log 212 log 21−log xlog x−log 21+2
General
2 months ago
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