3 years ago

Is 4 + 7i , rational, irrational or complex ?

Mathematics

1 answer:

statuscvo [17]3 years ago

3 0

Answer:

complex

Step-by-step explanation:

a + bi is the format of complex numbers, which are those that contain a real and an imaginary component. Rational and irrational numbers are all real and cannot contain i unless it is to an even power (in which case it becomes -1 or 1).

You might be interested in

Meredith was paid $18 for recycling 30 pounds glass. What is this rate payment

hammer [34]

$1.67 for each pound of glass

3 0

2 years ago

Can someone please answer this?

telo118 [61]

Yes i can answer this

8 0

3 years ago

A sample of n = 9 college students is used to evaluate the effectiveness of a new Study Skills Workshop. Each student’s grade

forsale [732]

Answer:

B) μD = 0.60 ± 0.10(1.397)

Step-by-step explanation:

The confidence interval is given by:

$MD±t_{\alpha/2, n-1} \frac{s}{\sqrt{n} }$

Where

MD=60

n=9

df=n-1=8

$t_{\alpha/2, n-1}=1.397$

$s=\sqrt{0.09} =0.3$

Then the confidence interval is

μD=0.60±1.397*(0.3/√9)

μD=0.60±0.10*(1.397)

6 0

2 years ago

11. You earn $500 in 80 hours. At that rate. how much would you eam in 200 hours?

kirza4 [7]

Answer:

Should be 1250$

5 0

2 years ago

Read 2 more answers

Which of the following has a slope of -3 and a y-intercept of -4?

tresset_1 [31]

The correct answer is C

6 0

3 years ago