Multiply (2-5i)(2+5i)

Answers

Answer 1

Answer:

29

Step-by-step explanation:

4 - 25i^2

4 - 25x(-1)

4 + 25 = 29

the ^2 means exponent 2


Related Questions

3) Find the area of the composite figure.
8 cm
2 cm
a. 44 cm
6 cm
5 cm
b. 50 cm?
5 cm
2 cm
c. 36 cm
8 cm
d. 22 cm

Answers

Answer:

8

Step-by-step explanation:

I love these


Your answer would be (C) 36


Just added up all of the numbers

one of the fastest times for 1,500-meter race is 3 minutes and 34 seconds. How many seconds is this time?

Answers

Answer:

214 seconds

Step-by-step explanation:

3 times 60 is 180. 180 plus 34 is 214.

Find the mean,median,mode.and range of the data set:12,15,17,16,10

Answers

Answer:

Mean: 14

Median: 15

Mode: All values appear just once

Range: 7

Jimmy is writing a paper for one of his classes. The paper has to be 2,000 words long, and so far he has written 432 words. If
he only has 4 more days to write his paper and wants to write the same number of words each day, then how many words
must he write per day to finish the paper?

Answers

392 words per day for the following 4 days

If f(x)=x^5+5x^3+4, what is the remainder when f(x) is divided by x-2?

Answers

By the polynomial remainder theorem, the remainder is

f (2) = 2⁵ + 5×2³ + 4 = 32 + 40 + 4 = 76

(The theorem says a polynomial p(x) has remainder p(c) upon dividing it by x - c.)

Help me answer these

Answers

Step-by-step explanation:

y=-2X2 -2X +4

Answer: I answered it it's C

it’s C but you can use Photomath

PA = 0.5 PB = 0.3 and p A and b equals 0.15 what is p A or b

Answers

Answer:

P(A) = 0.2, P(B) = 0.5, P(A\B) = 0.3:

P(A\B) = P(A and B) P(B)

0.3 = P(A and B) 0.5

0.15 P(A and B)

P(A and B) = 0.15

B. P(A or B) = P(A) + P(B) - P(A and B)

0.2 + 0.5 - 0.15

0.70 - 0.15 = 0.55

Solving two-step equations:

106 = 1 + 7n


Answers

move 1 to the other side, making it negative
-1+106=7n
105=7n
divide both sides by 7
n=15

Answer:

n = 15

Step-by-step explanation:

106 = 1 + 7n

1-        1-

-------------------

105 = 7n

÷7       ÷7

------------------

15 = n

your goal is to get the variable by itself

Which graph represents the function f(x)=|x−1|−3 ?

Answers

It’s the first 1 because it’s the absolute value

Suppose a normally distributed set of data has a mean of 178 and a standard deviation of 20. Use the 68-95-99.7 Rule to determine the percent of scores in the data set expected to be below a score of 218. Give your answer as a percent and include as many decimal places as the 68-95-99.7 rule dictates. (For example, enter 99.7 instead of 0.997.)

Answers

Answer:

97.7%

Step-by-step explanation:

For a score below 218 :

P(x < 218)

Standard deviation = 20 ; mean = 178

Obtian the standardized score (Zscore) :

Zscore = (x - mean) / standard deviation

Z = (218 - 178) / 20 = 40 / 20 = 2

P(x < Z) = P(Z < 2) = 0.97725 (Z probability calculator)

0.97725 * 100 = 97.725 = 97.7%

Solve the equation for​ x, where x is restricted to the given interval.

Answers

Step-by-step explanation:

[tex]y = 3 \csc( \frac{x}{5} ) [/tex]

[tex] \frac{y}{3} = \csc( \frac{x}{5} ) [/tex]

Multiply by 5 on both sides.

[tex]5 \times \frac{y}{3} = \csc(x) [/tex]

Take the inverse of cosecant or arccsc of the function.

[tex]5 \: arccsc( \frac{y}{3}) = x[/tex]

The trigonometric equation for​ x, where x is restricted to the given interval is x = 5 * arccsc(y/5)

What is trigonometry?

Trigonometry is the branch of mathematics that deals with particular angles' functions and how to use those functions in calculations. There are six popular trigonometric functions for an angle. Sine (sin), cosine (cos), tangent (tan), cotangent (cot), secant (sec), and cosecant are their respective names and acronyms (csc).

Given

y = 3 CSC(x/5) for x in given domain

y/ 3 = CSC  (x/5)

CSC(x/5) = y/3

x/5 = arccsc(y/3)

x =  5* arccsc(y/3)

Therefore, "x = 5 * arccsc(y/5)" is the trigonometric formula when x is limited to the specified range.

Learn more about trigonometry here:

https://brainly.com/question/12068045

#SPJ2

Melissa can ride 20 miles on her bike in 8 hours how many miles can she ride an a hour

Answers

Answer:

2.75 miles in 1 hour

Step-by-step explanation:

MARK BRAINLIEST ! HELP ME PLEASE !!

Answers

Answer:

Y=9

Step-by-step

4y-7=2y+11

2y=18

Y=9

SHOW STEPS PLEASE...

Answers

9514 1404 393

Answer:

  (5 15/20) -(2 8/20) = 3 7/20

Step-by-step explanation:

Problems in "least common denominator" are made much easier if you are familiar with your times tables.

When you compare the denominator 4 to the denominator 20, you see that ...

  20 = 5 × 4

An equivalent fraction is made by multiplying by 1. Here, the version of 1 you want for the top fractions is 5/5.

  [tex]\dfrac{3}{4}= \dfrac{3}{4}\cdot\dfrac{5}{5}=\dfrac{3\cdot5}{4\cdot5}=\dfrac{15}{20}[/tex]

Similarly, the bottom fraction has its denominator multiplied by 4 to get from 5 to 20. The equivalent fraction is found by multiplying the numerator by the same number.

  [tex]\dfrac{2}{5}=\dfrac{2\cdot4}{5\cdot4}=\dfrac{8}{20}[/tex]

Then the desired difference is ...

  [tex]5\dfrac{15}{20}-2\dfrac{8}{20}=(5-2)+\left(\dfrac{15-8}{20}\right)=3\dfrac{7}{20}[/tex]

whos ur celeb crush I need to know mines is the actor of wanda

Answers

Answer:

Same!!!!!!!!!!!

Step-by-step explanation:

Answer:

mines Matthew Mercer i dont know if he counts as a celeb cuz he is a famous voice actor

Plzzzzz answer. Will give brainliest

Answers

Area of square = (2x-3)^2

Area = 2x-3 x 2x-3

Area = 4x^2 -6x -6x +9

Area = 4x^2 -12x + 9

Area of ovals = x-5 + x-5 = 2x-10

Area of square - area of ovals:

4x^2  - 12x +9 - 2x -10

4x^2 -14x +19 square units

Mathematics challenge

Answers

Get the equation of the line containing PQ using the point-slope formula:

y - (-2) = 3/2 (x - (-6))

Solve for y to get it in slope-intercept form:

y = 3/2 x + 7

so the y-intercept is (0, 7).

The line containing QR is then

y - 7 = -3/4 (x - 0)

or

y = -3/4 x + 7

The point R is on the x-axis, so its y-coordinate is 0. Plug in y = 0 and solve for x to get the other coordinate:

0 = -3/4 x + 7

3/4 x = 7

x = 4/3×7 = 28/3

So the point R has coordinates (28/3, 0).

Answer:

Point R is on the x-axis, so its y-coordinate is 0. Plug in y = 0 and solve for x to get the other coordinate:

0 = -3/4 x + 7

Take off the zero...

3/4 x = 7

Answer

x = 4/3×7 = 28/3

And there it is

Point R has the coordinates (28/3, 0).

Step-by-step explanation:

what is the total of 8 and 4 times y​

Answers

Answer:

12y?

Step-by-step explanation:

I’m assuming total meansd addition in this case and multiplying that by a variable or “y” would be 12y

i read the question wrong, nvm.

What is the quotient of 15÷3?

Answers

5

Hope this helps you :D

wines at $ 4.50 and
$5 per litres are mixed
with a third wine in
the ration 2:3:4.If the mixture Cost $5.20 a litre, what is
the Cost of the third wine?​

Answers

Answer:

The third wine costs $5.70 per litre

Step-by-step explanation:

so we've got 2 parts $4.50 wine, 3 parts $5 wine and 4 parts x wine. The result is $5.20 per part.

2l*$4.50/l + 3l*$5/l + 4l*x = (2l+3l+4l)*$5.20/l

$9 + $15 + 4l*x = $46.80

4l*x = $22.80

x = $5.70/l

wanna know if my answer is correct (C.) please help!!!!

Which of the following is the solution to the equation 2/3x = 12?

A. X= 4
B. X= 8
C. X = 18
D. X = 24​

Answers

Answer:

the correct answer is C

Step-by-step explanation:

can you get this answer

Answers

Answer:

1/128

Step-by-step explanation:

use formula: an = a1 × r ^ n-1

a1 = 4

r = 0.5

n = 10

a10 = 1/128

How to you draw 1/2 slope on a graph?​

Answers

Answer:

the coordiantes for the first few are (0,0) (2,1) (4,2) (6,3) etc

Step-by-step explanation:

What is the measure of AZB

Answers

Answer:

129 degrees

Step-by-step explanation:

When we add a right angle (90 degrees) to an acute 39 degree angle we get 129 degrees.

azb = 129 degrees

What is the solution to the inequality 7x + 2 < 3x + 1?
Ο Α. α
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1
10
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3
4
O C.
3
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O D. I
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10
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Answers

Answer:

x < -1/4

Step-by-step explanation:

7x + 2 < 3x + 1

4x + 2 < 1

4x < -1

x < -1/4

Which two-way frequency table correctly shows the marginal frequencies?

Answers

Answer:

B

Step-by-step explanation:

how long will it take with 0.5kW power rating to do 1500J of work?

3 seconds
3 microseconds
3 minutes
0.3 seconds ​

Answers

Try finding it in this https://www.uplifteducation.org/cms/lib01/TX01001293/Centricity/Domain/273/ENERGY%20CLIMATE%20PROBLEMS-SOL.pdf

Kira has $2,250 sitting in a savings account that
earns 2.75% simple interest each year. If she
leaves it there untouched, how much will be in
the account after 8 years?

Answers

Answer:

2 250×96×2.75=5 940

Step-by-step explanation:

1 year=12 months

8 year's =96 Month's

first thing you need to do is to convert Years into months

saloonaeraal
Diberaiaissensis
Carpeteers
0008Past Practicetest
M AROAeroes Asces
16. Which of the following statement fade atrout not thekhe account 2 points)
They are for son tan sonra ay
Theyreareere

Answers

Answer:

A because i can boy or girl im just tired

Cecilia invested 12,500 in an account that compounds quarterly at 2%. How much money is in her account after 4 years

Answers

6 persent

75,000 infour year's

follow me

nice study

I think 22400 mainly because i did the calculation

12500 * .2 4 times and got that answer.

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