If the focal length of a reflection telescope is 200 cm and the focal length of the eyepiece lens is 0.25 cm, what is the magnifying power of the telescope

Q: A service wire reaches from the top of a barn which is 1 meters hight to a point on the ground 6…

A: What is the length of the wire to the nearest tenth of a meter?

Q: If the work required to stretch a spring 2 ft beyond its natural length is 12 ft-lb, how much work…

A:

Q: An observatory has the shape of a right circular cylinder surmounted by a hemisphere. If the radius…

A: Given: The radius of cylinder is 14 ft. and its altitude measures 30 ft. To find: The surface area…

Q: A 53 feet wire is used to brace a utility pole. If the wire is attached 5ft from the top of the 38ft…

A:

Q: A power pole 10 m tall casts a shadow 8 meters long, at the same time that a building nearby casts a…

A:

Q: A certain field measures 1/4 mile x 1/4 mile if there 5280 ft in a mile, what would the length of…

A: Given Data: The length of the field is: l=14 mile The width of the field is: w=14 mile The number of…

Q: A hose has a radius of approximately 0.5 in. and a lengthof approximately 20 ft. By what factor does…

A: Assume radius of the hose be r and length be l. Given, r=0.5 inches and l=20 ft

Q: A person 2 m tall casts a shadow 5 m long. At the same time, a building casts a shadow 24 m long.…

A:

Q: A paint company wants to change the height of its cans of paint to 15 centimeters tall so when the…

A:

Q: A 25-foot ladder is placed 7 feet from the wall, as shown. 25 ft. 7 ft. If the top of the ladder…

A: Trigonometry Question

Q: A soft-drink machine is regulated so that it discharges an average of 200 mm/cup. If the amount of…

A: The average rate of discharge of the soft drink machine is 200 mm/cup. The standard deviation of…

Q: A tank, measuring 30cm x 40cm x 50cm, contains 2 identical cubes. Water is then poured into the tank…

A: Given data is : A tank, measuring 30cm x 40cm x 50cm, contains 2 identical cubes Volume of…

Q: A pole that is 3 m tall casts a shadow that is 1.4 m long. At the same time, a nearby tower casts a…

A: We can answer the question as below.

Q: The nearest star​ (other than the​ sun) is Alpha Centauri. It is 4.34​ light-years from Earth. How…

A:

Q: A 10 ft ladder is leaning a wall. If the base of the ladder is 6 ft from the wall, how far up the…

A:

Q: A 6-foot spruce tree is planted 15 feet from a lighted streetlight whose lamp is 18 feet above the…

A: Here we solve the problem of triangle.

Q: A 24-foot ladder resting against a house reaches a windowsill 16 feet above the ground. How far is…

A: Length of ladder=24 foot

Q: Starting with a 180-foot-long stone wall, a farmer would like to construct a rectangular enclosure…

A: topic - application of derivatives

Q: How high up on a wall does a 34-ft ladder reach if the bottom of the ladder is placed 16 ft from the…

A:

Q: A man whose height is 1.6 m casts a shadow that is 2.7 m in length. What is the approximate height…

A: Height of building = 6.6 meter Option C is correct Answer.

Q: If the car is traveling 65 miles per hour, about how many times per second does the wheel rotate?

A: we know that 1 mile=1.609344 kmand car is travelling 65 miles =65×1.609344 km=104.60 kmthat is car…

Q: What is the side length of the smallest square plate on which a 40-cm chopstick can fit along a…

A: Let us consider the square plate with side a .

Q: When​ dropped, a ball rebounds to 1/8 of its original height. How high will the ball rebound after…

A:

Q: A car tire has a diameter of 65 cm if the car will rotate once per second how far does the car…

A: 1 minute=60 seconds car travels π D in one rotation.Here D is the diameter

Q: Determine the work done if an electric hoist lifts 2500 -pound car 6 feet.

A: Weight of car, P = 2500 lb                        Height by which the car has…

Q: A vertical rod 10 feet high casts a shadow, at a particular time of day, and 8 feet. A tree, at the…

A: let the height of tree is h feet therefore by law of proportion 10h=8468h=460h=57.5 feet

Q: Can a 3½ by 2½ inch image be presented at 6 by 41⁄4 inches without geometric distortion?

A: We see that, 312 : 212=72 : 52=7 : 5=1.4 : 1

Q: A company makes square-pyramid-shaped tents with a height of 6 feet and a base with a side length of…

A:

Q: To the nearest tenth of a centimeter, how tall is a cylinder with a radius of 9.4 cm and volume of…

A:

Q: Starting with a 160-foot-long stone wall, a farmer would like to construct a rectangular enclosure…

A:

Q: If a tire rotates at 400 revolutions per minute when the car is traveling 72km/h, what is the…

A:

Q: A walk-up ramp runs 20 ft horizontally while rising 4 ft. Use a calculator to approximate its length…

A: Given, Right angle triangle and we have Adjacent side 20ft (say, r) and length 4ft (say, b). To find…

Q: A wheel has a radius of 13 inches. To the nearest inch, how far does it travel in 3000 revolutions?

A:

Q: The side length of a smaller square is one-third the side length of a larger square. Based on this…

A: Given: The side length of a smaller square is one - third the side length of a larger square. To…

Q: The number of flaws in metal sheets 100 cm by 150 cm is known to follow

A:

Q: The town of Goodland, Kansas, claims that it has one of the world's largest easels. It holds an…

A: Both original & reproduction are similar. So, the length to width ration is same  l1  = ?  b1 =…

Q: If a parabolic reflector of an automobile head light is 12 in. in diameter and 4 in. deep, what is…

A: To determine the area of the reflector of the headlight, lets consider the vertical cross section of…

Q: Starting with a 140-foot-long stone wall, a farmer would like to construct a rectangular enclosure…

A: Given: Length of the stone wall is 140 foot. A rectangular enclosure is added by adding 700 feet of…

Q: a rectangular prism tank has a base with a length of 40 inches a width of 35 inches and a height of…

A:

Q: im Exam 1. How high is the chimney whose shadow is 28cm long when five-foot gate casts a twelve-foot…

A: Given query is to find the height of the chimney.

Q: A statue is 52 cm tall. When its shadow is 68 cm long, the shadow of a certain tree is 30 m long.…

A:

Q: A 60 foot ladder needs to reach a window that is 47 feet off the ground . How far away to the…

A: Ans (1) we have given a 60 foot ladder needs toreach a window that is 47 feet the groundAs 1 feet =…

Q: A meteorologist measured the eyes of hurricanes to be 13 to 18 miles in diameter during one season.…

A:

Q: The wheels on a racing bicycle have a radius of 10 inches. How fast is the cyclist traveling in…

A: Circumference of wheel = 2πr                                  = 2 × 22/7 × 10 inches Distance…

Q: A ball is dropped from a height of 48 ft and rebounds two-thirds of the distance it falls. If it…

A: A ball is dropped from a height of 48 ft and rebounds two-thirdsof the distance it falls. it will…

Q: Starting with a 80-foot-long stone wall, a farmer would like to construct a rectangular enclosure by…

A: given,             farmer adds fencing of 480feet.

Q: the total area of a cone is 125 pi cm^2 if its dimensions are increased to five times their original…

A: The total area of cone is A=πrr+l where r is the radius and l is the slant height.

Q: A margarine tub has the shape of a frustum of a cone. With the lower base having diameter length 11…

A: Given: A margarine tub has the shape of a frustum of a cone. The lower base of a margarine tub:…