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2 years ago

Is -4 a real or imaginary number?

Mathematics

2 answers:

ryzh [129]2 years ago

7 0

Answer:

Real number

Step-by-step explanation:

Unless it has an i with it then it's an imaginary number but because it doesn't have an i with it it's real

qwelly [4]2 years ago

5 0

Answer:

real number

Step-by-step explanation:

Hi! -4 is a real number because imaginary numbers are characterized as i= sqrt -1

If you see a number with an i in it, then it is imaginary. In this case, however, we have a real number.

I hope this helps!

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The graph shows the relationship between hours worked and total earnings for a store clerk. Let h represent hours worked and e r

Dovator [93]

Answer:

The answer is C.

Step-by-step explanation:

y = kx → e =

h → e = 7.5h

The independent variable is hours worked, h, and the dependent variable is total earnings, e. The independent variable is the input value of a function. The dependent variable is the output value of a function.

8 0

2 years ago

The function f(x) = 1.50x + 12.50 relates how much kelsey pays for digital service, f(x), to the number of movies, x, she stream

Brums [2.3K]

f(18) = 39.50

This gives the monthly cost Kelsey will pay if she streams 18 movies in a month

Step-by-step explanation:

Given function is:

$f(x) = 1.50x+12.50$

Here x is the number of movies

so for f(18), this means that the total number of movies will be 18

Solving

$f(18) = 1.50(18)+12.50\\f(18) = 27+12.50\\f(18) = 39.50$

Hence,

f(18) = 39.50

This gives the monthly cost Kelsey will pay if she streams 18 movies in a month

Keywords: functions, Domain,range

Learn more about functions at:

#LearnwithBrainly

6 0

3 years ago

PLEASE HELP!!!

Artemon [7]

B. T<span>he slope is 10.25. This means that Dante earns $10.25 each hour.

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3 0

2 years ago

What is the equation in slope-intercept form of the line that has a slope of -2/3, and passes through the point (6, 2)?

Jet001 [13]

Answer:

Y=-2/3x+6

Step-by-step explanation:

Y=-2/3x+b

2=-2/3•6+b

2=-4+b

6=b

3 0

3 years ago

If anyone knows this then thank you

vekshin1

Answer:

B) x=12

Step-by-step explanation:

x+22+4x+2= 5x+24

5x+24=84

5x=60

x=12

6 0

2 years ago

Read 2 more answers