36 Answered Questions for the topic grade11

Grade11 Math Functions

07/28/21

Prove the identity of: (sinx - cosx)(sinx + cosx) = 2sin^2 x - 1

Grade11 Math Functions

07/28/21

Prove the identity of: 1+tan^2 x = 1/cos^2 x

Grade11 Math Functions

07/28/21

Prove the identity of: 1-sin^2 x/cosx = cosx

Grade11 Math Functions

07/28/21

A carnival Ferris wheel with a radius of 9m rotates once every 10 s. The bottom of the wheel is 1m above the ground.

a) Sketch the graph showing two complete cycles if the rider starts at the bottom of the wheel.b) Find the equation of the sine function that gives a rider’s height above the ground, in metres, as... more

07/22/21

Find the exact value of each trigonometric ratio.

a) cos30Β°b) sin225Β°

07/22/21

In βˆ†ABC, where ∠A= 20Β°, a = 2 cm, and b = 5 cm

Determine the number of triangles that could be drawn with the given measures. Then, find the measures of the other angles and the other side in each possible triangle. Round to the nearest tenth,... more

07/22/21

In βˆ†XYZ, where ∠X = 43Β°, x = 2 m, and y = 4 m

Determine the number of triangles that could be drawn with the given measures. Then, find the measures of the other angles and the other side in each possible triangle. Round to the nearest tenth,... more

07/22/21

Solve each triangle. Round each measure to the nearest tenth of a unit.

a)) In βˆ†ABC, ∠B=90 degrees, ∠C=47.1 degrees, c=9.7 cmb)) In 𝐼𝑛 βˆ†πΎπΏπ‘€,∠𝐾 = 90 degrees , π‘š = 12.4 π‘π‘š π‘Žπ‘›π‘‘ 𝑙 = 8.8𝑐m
Grade11 Math Functions

07/20/21

Solve the following. 6^x+3 = 6^2x

Grade11 Math Functions

07/20/21

Simplify and leave answers as a positive exponent. 3sqrt sqrtx^6 =

Grade11 Math Functions

07/20/21

Evaluate the following: (-27)^-2/3

Grade11 Math Functions

07/20/21

Evaluate the following: 81^3/4 =

Grade11 Math Functions

07/20/21

Evaluate the following: (16)^-3/4.

Grade11 Math Functions

07/20/21

Evaluate the following: 1/(-5)^2. Show your work.

Grade11 Math Functions

07/17/21

determine the x-intercepts of the function f(x) = 12x^2 + 5x - 2

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