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All Questions
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230990 Questions
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543
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help
Katrina is launching a toy rocket. For safety reasons, she stands 40 yards away from the rocket before it is launched. He observes that the rocket hits its maximum height at an angle elevation of 42°. What is the height the rocket reaches?
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Guest
Feb 20, 2020
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830
2
help
Two parallel chords in a circle have lengths 6 and 8. The distance between them is 1. Find the diameter of the circle.
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Guest
Feb 20, 2020
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638
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conical vessel
A conical vessel of radius 6 cm and height 8 cm is completely filled with water. A metal sphere is now lowered into the water. The size of the sphere is such that when it touches the inner surface, it just gets immersed. Find
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Guest
Feb 20, 2020
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436
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circle tangent to cirlce
A circle C is tangent to the line y = -2, and also externally tangent to the circle x^2 + y^2 = 1. Given that the center of circle C is O = (16,a), what is the value of a?
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Guest
Feb 20, 2020
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372
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maximum right angles
What is the maximum number of interior right angles that can be used to form a 9-sided polygon
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Guest
Feb 20, 2020
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543
2
+1
need help
x^2 + 6x + 5 = 0... how would i solve for this????Solve the trinomial by factoring or quadratic formula:
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drjtr1988
Feb 20, 2020
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551
1
help
If angle BOA = 30 degrees and angle BCO = 40 degrees, then find angle AOC.
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Guest
Feb 20, 2020
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616
3
help
Let be a regular 16-gon. Find angle .
heureka
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Guest
Feb 20, 2020
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537
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pls help btw yall are amazing for answering
Give the exact value for each / show work
a. (tan900°+sec135°) / csc(-90°)
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Guest
Feb 20, 2020
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420
1
A theater sold 4 adult tickets and 3 child tickets for 156 dollars they also sold 3 adult tickets and 4 child tickets for 145 dollars. How m
A theater sold 4 adult tickets and 3 child tickets for 156 dollars they also sold 3 adult tickets and 4 child tickets for 145 dollars. How much are adult and child tickets
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Guest
Feb 20, 2020
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486
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help
If 1qt of paint covers 120ft^2, how many square feet does 2 gal cover?(1 gal=4 qt.)
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Guest
Feb 20, 2020
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577
1
help
Airline fares for a flight from Dallas to Austin are $30 for first class and $25 for tourist class. If a flight had 52 passengers who paid $1360,how many first class and tourist class passengers were there?
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Guest
Feb 20, 2020
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499
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please help
Carolyn received a check last week . She invested part at 15% and 1000 more than this amount at 16%. If she will earn $780 in interest in a year, how much was invested at each rate?
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Guest
Feb 20, 2020
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636
1
help
Matt wants to measure the height of a tree. He walks exactly 100 feet away from the base of the tree and looks up at it. The angle from his eyes to the top of the tree is 35.
If his eye level is 5 feet from the ground what is the height of the tree.
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Guest
Feb 20, 2020
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2959
2
I NEED HELP DESPERATELY!
For an integer n, the inequality x^2+nx +15<0 has no real solutions in x. Find the number of different possible values of n.
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Guest
Feb 20, 2020
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498
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help
A quality control inspector samples 2 computer chips from a box containing 13 computer chips. If the box contains 3 defective chips, in how many ways can he select a sample so that at least one of the chips is defective?
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Guest
Feb 20, 2020
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575
1
What is the sum of the first six terms of the series?
What is the sum of the first six terms of the series?
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Guest
Feb 20, 2020
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2134
2
help
One angle of a right triangle measures 60°. The side opposite this angle measures 15 inches.
What is the length of the hypotenuse of the triangle?
Enter your answer, in simplest radical form
Hypotenuisance
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Guest
Feb 20, 2020
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559
1
help
The terminal ray of angle β , drawn in standard position, passes through the point (−4, 3√5) . What is the value of cosβ ? Enter your answer, in simplest radical form, in the box. Cosβ = ?
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Guest
Feb 20, 2020
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530
2
please help
Left on together, the cold and hot water faucets of a certain buthtub take 7 minutes to fill the tub. If it takes the cold water faucet 17 minutes to fill the tub by itself, how long will it take the hot water faucet to fill the tub on its own?
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Guest
Feb 20, 2020
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615
6
T^3 = 27 * R^5 is simplified to T=a*R^b
T^3 = 27 * R^5 is simplified to T=a*R^b
a. Calculate the exact values of a and b
b. If R gets eight times bigger, how many times does T get bigger?
c. The equation for T is simplified to R=p*T^q. Calculate p to one decimal
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Guest
Feb 20, 2020
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412
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a. Solve g(x) = -10 and g(x) > f(x) for the given equations f(x)=x^2 and g(x)=1/(x^3).
a. Solve g(x) = -10 and g(x) > f(x) for the given equations f(x)=x^2 and g(x)=1/(x^3).
b. What is the symmetry axis or point of axis for both graphs.
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Guest
Feb 20, 2020
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