All Questions ⁺⁰235549 Questions

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637

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QUESTION 1 OF 12!!

find the circumference of 2mm, correct to 2 decimal places. Use a calculator for the value of pi.

Guest Mar 28, 2017

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811

3

Cos-1

How do I put "cos-1" on the calculator?
I don't know how read more ..

Guest Mar 28, 2017

+1

1106

2

+37

help

Two office towers are 30 m apart. From the 15th floor (which is 40 m above the ground) of the shorter tower, the angle of elevation to the top of the other tower is 70 degrees.
Determine the angle of depression to the base of the taller tower read more ..

micheala950831 Mar 28, 2017

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720

1

+37

help

A rectangle measures 8cm by 4cm. Determine the mesaures of the two acute angles formed at the vertex by a diagonal.

micheala950831 Mar 28, 2017

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517

1

HELP!!!

What is 5 over 20?

Guest Mar 28, 2017

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587

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+37

help

A guy wire fastened 50 m from the base of a tower makes an angle of 55 degrees with the ground. How high up is the tower does the guys wire reach?

micheala950831 Mar 28, 2017

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1064

1

+37

help

A market gardener has to fertilize a triangular field with sides of lengths 90m, 45m, and 65m. The fertilizer is to be spread so that 1 kg covers 10m squared. One bag of fertilizer has a mass of 9.1 kg. How many bags of fertilizer will he need? read more ..

micheala950831 Mar 28, 2017

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2068

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+37

help

Two ships leave a port at the same time. One sails at 17km/h on a bearing of 205 degrees. The other sails at 21 km/h on a bearing of 243 degrees. How far apart are the ships after 2 hours?

micheala950831 Mar 28, 2017

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1061

2

+37

help

A helicopter hover directly above the landing pad on top of a 125 m hight building. A person is standing 145 m from the base of the building. The angle of elevation to the helicopter from the person is 58 degrees. How high is the helicopter above the landing read more ..

micheala950831 Mar 28, 2017

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970

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math

A town in the mid west has been experiencing a steady population decline of 3.75 % per year for the past decade. If there were 31900 residents in the year 2011 and the trend continues, what will the population be in the year 2030?

Guest Mar 28, 2017

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1882

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+37

help

From a certain point, the angle of elevation to the top of a church steeple is 10 degrees. At a point 100m closer to the steeple, the angle of elevation is 20 degrees. What is the height of the steeple?

micheala950831 Mar 28, 2017

0

878

1

+37

help

From the top of a building 70 m high, angle of depression of a car on the road is 27 degrees. How far is the car from the foot of the building?

micheala950831 Mar 28, 2017

0

978

1

+37

help

a tree casts a shadow 40m long when the sun rays are at an angle of 36 degrees to the ground. How tall is the tree?

micheala950831 Mar 28, 2017

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844

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Trigonometric Ratios

An Olympic ski jumper drops 51 meters vertically while skiing down a 120-meter ramp. What is the angle of elevation of the ramp?

Guest Mar 28, 2017

+1

849

4

+11

Cube

How do I cube a number?

Candyburrito Mar 28, 2017

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596

3

what is 4+4?

what is 4+4? I am in kinergarden and I ned help

Guest Mar 28, 2017

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640

0

Physics Question

A 280-kg crate is placed on an adjustable inclined plane. As one end of the incline is raised, the crate begins to move downward. If the crate slides down the plane with an acceleration of 0.67 m/s2 when the incline angle is 26°, what is the coefficient read more ..

Guest Mar 28, 2017

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3271

1

help please!

A) We are given that $a^2 \equiv 4^2 \pmod{10}$ and that $a \neq 4$ Find the value of a. Express your answer as a residue between 0 and the modulus.
B) Let $a \neq 0$ and $a^2 \equiv 0 \pmod{12}$ What read more ..

Guest Mar 28, 2017

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569

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how to do angles

how to do angles

Guest Mar 28, 2017

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827

4

Need help

Given the two vectors below, find the angle between them. Round answers to the nearest hundredth. v=⟨−13,−1⟩v=⟨−13,−1⟩ w=⟨19,−3.1⟩

Guest Mar 28, 2017

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760

2

algebraic expression with exponents questions

(-2x-2)3(6x)2
__________
2(-3x-1)3
read more ..

Guest Mar 28, 2017

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