3 years ago

What is the conjugate of 8-7i?

Mathematics

1 answer:

Natali [406]3 years ago

5 0

Answer:

8 + 7i

Step-by-step explanation:

Change the sign of the imaginary part.

The conjugate of 8 - 7i is 8 + 7i.

You might be interested in

Which of the five measures of center (the mean, the median, the trimmed mean, the weighted mean, and the mode) can be calculated

nalin [4]

The mean and median can be calculated for quantitative data only.

4 0

3 years ago

Choose an equation in slope-intercept form for the line that passes through (-8,1) and is perpendicular to the y=2x-17.

N76 [4]

<span>y= -(1/2)x - 5

I think :P</span>

7 0

3 years ago

Will give brainliest to the best answer. (disregard my current answer, it was accidental)

RideAnS [48]

The thousandths place is the 3rd digit after the decimal.

So:

47,268.56<u>8</u>593 = 47,268.569

The 3rd option is your answer

8 0

3 years ago

Read 2 more answers

A net of a building block is shown below. What is the total surface area of the building block? *

777dan777 [17]

Answer:

where

Step-by-step explanation:

6 0

2 years ago

Radioactive Waste The rate at which radioactive waste is entering the atmosphere at time t is decreasing and is given by Pe^-kt,

Dmitry_Shevchenko [17]

Answer:

$\displaystyle{\int^{\infty}_0 {50e^{-0.04t}}\, dt}=1250$

Step-by-step explanation:

Given:

$T =\displaystyle{\int^{\infty}_0 {Pe^{-kt}} \, dt}$

where,

T = total amount of waste

P = 50, the initial rate

k = 0.04

t = time

$T =\displaystyle{\int^{\infty}_0 {50e^{-0.04t}} \, dt}$

now we need to solve this integral!

$T =\displaystyle{50\int^{\infty}_0 {e^{-0.04t}} \, dt}$

$T = \left|50\left(\dfrac{e^{-0.04t}}{-0.04}\right)\right|^{\infty}_0$

$T = \left|-1250e^{-0.04t}\right|^{\infty}_0$

$T = (-1250e^{-0.04(\infty)})-(-1250e^{-0.04(0)})$

when any number has a power of negative infinity it is 0. because: $a^-{\infty} = \dfrac{1}{a^{\infty}} = \dfrac{1}{\infty} = 0$ , like something being divided by a very large number!

$T = (-1250(0))-(-1250e^0)$

$T = 1250$

this is the total amount of waste

6 0

3 years ago