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OA

Olga A.

Algebra and Trigonometry

an hour ago

Given that cos 80 = 0.173648 . . . , explain how to find cos 100, cos 260, cos 280, and sin 190 without using a calculator.

OA

Olga A.

Algebra and Trigonometry

an hour ago

Given that cos 80 = 0.173648 . . . , explain how to find cos 100, cos 260, cos 280, and sin 190 without using a calculator.

CS

Christina S.

Algebra and Trigonometry

9 hours ago

Find the exact value of s in the given interval that has the given circular function value. 2/pi,pi cos s = - sqrt3/2

CS

Christina S.

Algebra and Trigonometry

9 hours ago

Through how many radians will the hour hand on a clock rotate in 12 hours?

CS

Christina S.

Algebra and Trigonometry

9 hours ago

Find the area of a sector of a circle having radius r and central angle ?. If necessary, express the answer to the nearest tenth. r = 7.4 mi, ? = 314°

TB

Tony B.

Algebra and Trigonometry

15 hours ago

Solve the equation for $0^\circ \le x \le 360^\circ \hspace{25pt}$ $i) 2\sin^2 (x)= \cos (x)+ 1 \hspace{25pt}$ $ii)\ sin^2(x)=1-cos (x) \hspace{25pt}$ $iii) 1-\cos^2(x)=2sin(x)$

JG

Jose G.

Algebra and Trigonometry

None

The horizontal and vertical components of the velocity of an arrow shot into the air are 15 ft/sec and 25 ft/sec, respectively. Find the velocity of the arrow

JG

Jose G.

Algebra and Trigonometry

None

An arrow is shot into the air so that it’s horizontal velocity is 35ft/sec of an arrow shot into the air are 15 ft/sec. Find the velocity of the arrow.

JG

Jose G.

Algebra and Trigonometry

None

A bullet is fired into the air with an initial velocity of 1800 ft/sec at an angle of 60 degrees from the horizontal. Find the horizontal and vertical vectors of the velocity

JG

Jose G.

Algebra and Trigonometry

None

a ship travels 135 km on a 138 degrees course. How far east and how far south has it traveled?

JG

Jose G.

Algebra and Trigonometry

None

a plane flies for 3 hours at 230km/hr on a 215 degrees course. How far west and how far south does it travel in the 3 hours?

JG

Jose G.

Algebra and Trigonometry

None

a plane flies for 3 hours at 230km/hr on a 215 degrees course. how far west and how far south does it travel in the 3 hours

JG

Jose G.

Algebra and Trigonometry

None

a plane flies for 3 hours at 230km/hr on a 215 degrees course. how far west and how far south does it travel in the 3 hours

JG

Jose G.

Algebra and Trigonometry

None

A bullet is fired into the air with an initial velocity of 1,200 feet per second at an angle of from the horizontal. Find the magnitude of the horizontal and vertical vector components of the velocity vector.

DK

Daniel K.

Algebra and Trigonometry

None

IC

Ivy C.

Algebra and Trigonometry

None

I need help solving this logarithmic equation algebraic ally. ln?x?8 =5( The square root is over x-8)

BV

Briana V.

Algebra and Trigonometry

None

si

Sydney I.

Algebra and Trigonometry

None

A 12 sided die is rolled. The set of equally likely outcomes is {1,2,3,4,5,6,7,8,9,10,11,12}. Find the probability of rolling a 6.

ZK

Ziz K.

Algebra and Trigonometry

None

A hot-air balloon is rising straight up with a speed of 3.0m/s. A ballast bag is released from rest relative to the balloon at 9.5m above the ground. How much... time elapses before the ballast bag hits the ground?

ZK

Ziz K.

Algebra and Trigonometry

None

A space vehicle is coasting at a constant velocity of 21.0 m/s in the +y direction relative to a space station. The pilot of the vehicle fires a RCS (reaction control system) thruster, which causes it to accelerate at 0.320 m/s in the +x direction. After 45.0 s, the pilot shuts off the RCS thruster. After the RCS thruster is turned off, find (a) the magnitude and (b) the direction of the vehicle's velocity relative to the space station. Express the direction as an angle measured from the +y direction.

RL

Ralph L.

Algebra and Trigonometry

2 days, 13 hours ago

II. Given the nth term formula, complete the first five terms of the sequence 1. an = 5n2 -2n for n ? 1 2. an = n/(n+1) for n?0 3. an = 4n2 –n - 1 for n ? 1 4. a_n= 2n^2+ n – 3 for n ? 0 5. a1 = 3, a2 = 7, and an = 2an-1 + an-2 for n ? 3 III. Substitute the given values in the formula A = Pe^rt to find the missing quantity 1. P = 750,000, r = 18% per year, t = 8 years 2. A = 1,740,000, r = 7% per year, t = 5 years 3. A = 675,000, P = 425,000, r = 4% per year

ZK

Ziz K.

Algebra and Trigonometry

None

As a tennis ball is struck, it departs from the racket horizont- ally with a speed of 28.0 m/s. The ball hits the court at a horizontal distance of 19.6 m from the racket. How far above the court is the tennis ball when leaves the racket?

DN

Danielle N.

Algebra and Trigonometry

2 days, 17 hours ago

In a senior graduating class of Math majors in UC, 42 studied mathematics, 68 studied chemistry, 54 studied history, 22 studied both mathematics and history, 25 studied both mathematics and chemistry. and 7 studied history but neither mathematics nor chemistry, 10 studied all three subjects, and 8 did not take any of the three. a) what is the total number of senior students? b) how many students studied mathematics only? c) how many students studied chemistry only?

RE

Rama E.

Algebra and Trigonometry

None

dr

Donald R.

Algebra and Trigonometry

3 days, 11 hours ago

Maria clothing store sold $5230 worth of items last week. She invested half of her income from the week in new items to sell.Then she paid herself $300 salary for the week. A manufacturer gave her a rebate of $500 for items that were reduced at the factory. What was her ending balance? Write the expression and find the balance.

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