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3 years ago

Find the zero of the linear function f(x)=x+5

Mathematics

1 answer:

inn [45]3 years ago

7 0

Answer:

-5 =x

Step-by-step explanation:

f(x)=x+5

Set the function equal to zero

0 = x+5

Solve for x

-5 = x+5-5

-5 =x

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For what values of theta (0 less than or equal to theta less than or equal to 2pi) do maximum r values occur on the graph the po

9966 [12]

Answer:

Step-by-step explanation:

To find the values of the angle which makes maximum r you use the derivative of r

$\frac{dr}{d\theta}=\frac{1}{3}sin(3\theta)$

If you equals this derivative to zero you obtain the value of the angle:

$\frac{dr}{d\theta}=0\\\\cos3\theta=0\\\\3\theta=\frac{\pi}{2}\\\\\theta=\frac{\pi}{6}$

However, the values of 5π/6 and 9π/6 are also available, because makes the sinusoidal function equal to 1.

hence, the answer is:

$\theta_1=\frac{\pi}{6} \\\\\theta_2=\frac{5\pi}{6}\\\\\theta_3=\frac{9\pi}{6}=\frac{3\pi}{2}$

answer b

7 0

3 years ago

I WILL GIVE BRAINLIEST

Illusion [34]

Answer:

D. -20 + 35c

Step-by-step explanation:

All you need to do is distribute the -5 to what's inside the parenthesis:

-5(4 - 7c)

The -5 can be distributed to the 4 and the -7c:

-20 + 35c

6 0

3 years ago

Sales records at an automobile dealership show that they sold 40 red cars one month. Of those cars, 25 were new cars and 15 were

Sliva [168]

You find the probability of an event happening if you divide the number of times that event has actually happened in the experiment by the number of total events that has happened. If you want to find the probability of the used car, you have to know..

how many used cars were there? 15
how many cars were there? 40

Therefore, the probability of buying a used car is 15/40 or 3/8.

5 0

3 years ago

What are the factors of x2 − 25?

german

Answer:

)x + 5)(x - 5)

Step-by-step explanation:

x² - 25 ← is a difference of squares and factors in general as

a² - b² = (a + b)(a - b), thus

x² - 25 = x² - 5² = (x + 5)(x - 5)

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3 years ago