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2 years ago

5

A + b = 0 which of these is equal to b?

1 answer:

kobusy [5.1K]2 years ago

3 0

Answer:

b is equal to negative a and a is also equal to negative b

Step-by-step explanation:

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What is the value of tangent theta in the unit circle below? One-half StartFraction StartRoot 3 EndRoot Over 3 EndFraction Start

horrorfan [7]

Answer:

$\frac{1}{\sqrt{3} }$

Step-by-step explanation:

A unit circle is defined as a circle of unit radius (that is the radius of the circle is equal to 1). In trigonometry, the unit circle is a circle with a radius of 1, while centered at the origin (0, 0) in the Cartesian coordinate.

In the unit circle below, we can see that the line touches the unit circle at point $(\frac{\sqrt{3} }{2} ,\frac{1}{2})$ , therefore to find the tangent of theta, we use the formula:

$tan\theta = \frac{y}{x} \\\\tan\theta=\frac{\frac{1}{2} }{\frac{\sqrt{3} }{2} } =\frac{1}{2}*\frac{2}{\sqrt{3} } \\\\tan\theta=\frac{1}{\sqrt{3} }$

6 0

2 years ago

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What is the equation of the graphed line written in standard form? 2x – y = –4 2x – y = 4 y = 2x – 4 y equals StartFraction one-

svp [43]

Answer:

The answer is "2x-y=4"

Step-by-step explanation:

Given:

$2x-y=-4\\2x-y=4\\y=2x-4\\y=\frac{1}{2}(x-4)\\$

The Formula of Slope:

$m=\frac{y_2-y_1}{x_2-x_1}$

by replacing the (2,0) and (0,-4) coordinates in the above formula:

$\to m= \frac{-4-0}{0-2}\\\\ \to m= \frac{-4}{-2}\\\\ \to m= \frac{4}{2}\\\\ \to m= 2\\\\$

if point y intercepting in x then x=0, for this the value of x= 0 and c=-4.

Equation of the line:

$\to y=mx+c$

apply m and c value in the above equation:

$\to y=2x-4\\$

Subtract by 2x on both sides of the equation we get:

$\to y-2x= 2x-4-2x\\\\\to y-2x=-4\\\\\boxed{\boxed{2x-y=4}}\\\\$

5 0

3 years ago

Read 2 more answers

Please help, im stuck and this is due in 10 minutes.

maria [59]

The answer is C. Hope this helps :) good luck!

5 0

2 years ago

The height of a building is 1417 ft. How long would it take an object to fall to the ground from the top? Use the formula s = 16

Lemur [1.5K]

Given :

The height of a building is 1417 ft.

To Find :

How long would it take an object to fall to the ground from the top.

( Use the formula s = 16t² where s is the distance, in feet traveled by an object falling freely from rest in seconds. )

Solution :

Putting value of height in given equation, we get :

$16t^2 = 1417\\\\t^2 = \dfrac{1417}{16}\\\\t^2 = 88.5625\\\\t = \sqrt{88.5625}\\\\t = 9.41 \ seconds$

Therefore, time taken by object to reach the ground is 9.41 seconds.

8 0

2 years ago

Which statment descirbes the soloution to a equation<br> a+5(2a-1)+3=11a-2

Andreyy89

Answer:

Any real number.

Step-by-step explanation:

I dunno what you're asking, but Im assuming you need what a equals to.

$a+5(2a-1)+3=11a-2\\a+10a-5+3=11a-2\\11a-2=11a-2\\$

The answer is any real number.

7 0

2 years ago