Mathematics, 14.05.2021 05:20 gooden839
the end of a car tunnel has the shape of a semicircle on top of a rectangle. the tunnel is exactly 4 km long. calculate the volume of air in the tunnel with no cars in it . the air in a car tunnel must be exchanged frequently. if the exhaust system pumps the air out at a rate of 10m ^ 3 per second, how long does ir take to replace the stale air with fresh air in the entire tunnel ? give your answer in hours and minutes .
Answers: 2
Mathematics, 21.06.2019 15:30
Which of the following statements is not true? a.parallel lines are lines in the same plane that never intersect. b.congruent figures have the same shape and same size angles and sides. c.similar figures must have the same shape and the same size. d.a rotation is when you turn a figure around a certain point.
Answers: 1
Mathematics, 21.06.2019 17:00
Two streets intersect at a 30- degree angle. at the intersection, the are four crosswalks formed that are the same length. what type of quadrilateral is formed by the crosswalks?
Answers: 3
Mathematics, 21.06.2019 19:30
If (17, 4) is an ordered pair of the inverse of f(x), which of the following is an ordered pair of the function f(x)? a. (17,4) b. (4.17) c. (4,0) d. 0,17)
Answers: 2
Mathematics, 21.06.2019 21:30
Consider the following equation. 1/2x^3+x-7=-3sqrtx-1 approximate the solution to the equation using three iterations of successive approximation. use the graph below as a starting point. a. b. c. d.
Answers: 3
the end of a car tunnel has the shape of a semicircle on top of a rectangle. the tunnel is exactly 4...
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