38 Answered Questions for the topic grade11

03/30/22

A quadratic function has these characteristics: x = 1 is the equation for the axis of symmetry. x = –1 is an x-intercept. y = –4 is the minimum value. Determine the y-intercept of this parabola.

Question #1:A quadratic function has these characteristics:x = 1 is the equation for the axis of symmetry.x = –1 is an x-intercept.y = –4 is the minimum value.Determine the y-intercept of this... more

03/11/22

The length of a rectangle is five times greater than the width, w. What is the ratio of the area of the rectangle to the perimeter of the rectangle in simplest form?

The length of a rectangle is five times greater than the width, w. What is the ratio of the area of the rectangle to the perimeter of the rectangle in simplest form? A rectangular poster has an... more
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) cos30°b) sin225°

07/22/21

In ∆ABC, where ∠A= 20°, 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 ∆XYZ, where ∠X = 43°, 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 ∆ABC, ∠B=90 degrees, ∠C=47.1 degrees, c=9.7 cmb)) In 𝐼𝑛 ∆𝐾𝐿𝑀,∠𝐾 = 90 degrees , 𝑚 = 12.4 𝑐𝑚 𝑎𝑛𝑑 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.

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