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4 years ago

Please help me find b! -12b = 9

Mathematics

2 answers:

WITCHER [35]4 years ago

8 0

-12b = 9

Get b by itself by dividing both sides by -12

b = -3/4

tester [92]4 years ago

3 0

If a number is right beside a variable ( called the coefficient) and you want to isolate the variable, you have to divide both sides by the coefficient -12b = 9 -12b / -12 = 9/-12 b= -9/12 to simplify b =-3/4 You can easily turn that into decimal form or percent form -3/4= -0.75 = -75%

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A strobe light is located at the center of a square dance room. the rotating light is 40 feet from each of the square walls and

Effectus [21]

The equation of the rotating light is an illustration of a secant function

The equation that represents the distance between the center of the circle and the light source is $d(t) = 40\sec(\frac{\pi}{3}t)$

<h3>How to determine the equation</h3>

The equation is a secant function represented by

$y =A\sec(Bt)$

Where:

A represents the amplitude

So, we have:

$A = 40$ --- the distance of the light from each square wall

B represents the period, and it is calculated as:

$B = \frac{2\pi}{T}$

The light completes its full rotation every 6 seconds.

This means that,

T = 6

So, we have:

$B = \frac{2\pi}{6}$

Simplify

$B = \frac{\pi}{3}$

Substitute values for A and B in $y =A\sec(Bt)$

$y = 40\sec(\frac{\pi}{3}t)$

Rewrite as a function

$d(t) = 40\sec(\frac{\pi}{3}t)$

Hence, the equation that represents the distance between the center of the circle and the light source is $d(t) = 40\sec(\frac{\pi}{3}t)$

Read more about trigonometry functions at:

brainly.com/question/1143565

5 0

3 years ago

Graph the solution to the inequality<br> |y+5|> 2

kirill [66]

Answer:

y>-3 y>-7

Step-by-step explanation:

-(y+5)>2

y<-7

7 0

4 years ago

A 'snail's pace is 60 inches per minute. At this rate how long will it take the snail to crawl 120 feet?

True [87]

Ok, so here, we have the unit rate of the snail. Now, we need to set up a proportion.

60/1 = 120/x

Now, cross multiply.

60*x = 120*1

60x= 120

Now divide to solve for x.

60x/60 = 120/60
x = 120/60
x= 2

Now our final answer is 2.

Final answer:- The snail will take 2 minutes to crawl 120 feet

5 0

3 years ago

Read 2 more answers

PLS HELP WILL MARK U BRAINLIEST

Olenka [21]

They are identical lines so they have infinity pairs