Select the correct answer.
write (3 + 4i) + (8 + 2i) as a complex number in standard form.

a.
5 + 12i
b.
7 + 10i
c.
11 + 6i
d.
11 − 6i

C.  11 + 6i

Step-by-step explanation:

(3 + 4i) + (8 + 2i)

Add  the real parts

3+8 = 11

Add the imaginary parts

4i+2i = 6i

The complex number is

11 +6i

C

Step-by-step explanation:

given (3 + 4i) + (8 +2i)

Collect real parts and imaginary parts as like terms

= 3 + 4i + 8 + 2i

= (3 + 8) + (4i + 2i) = 11 + 6i → C

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

$3720

step-by-step explanation:

taxable income = $31000

as per the 2018-2019 us tax bracket, the tax rate is 12% for an individual whose taxable income is between $9,526 to $38,700.

so, the tax to be paid by him = 12% of 31000

= 0.12 * 31000     [12% converted to decimal as 0.12]

= $3720