Multiply (9 - 4i)(2 + 5i)​

Answers

Answer 1

Answer:

38+37i

Step-by-step explanation:


Related Questions

Can someone please help explain how to do this?

What is the measure of B? C is 34 degrees.

Answers

Answer:

m<B= 56

Step-by-step explanation:

A triangle has 180 degrees. This is right triangle meaning there is one angle that is 90 degrees. That's angle A since it's indicated by the little box.  So 90+34= 124. You then subtract that from 180 to get 56.

When the bathroom at your house started to leak, the plumber came to fix it. In all, he used 18 feet of pipe, which came in either 2-foot or 4-foot sections. How many of each did he use if he needed 6 pieces of pipe
4 two foot and 2 four foot
3 two foot and 3 four foot
2 two foot and 4 four foot
5 two foot and 1 four foot

Answers

Answer:

3 two foot and 3 four foot

Step-by-step explanation:

In order to find how many of each he used, you have to find how much pipe in total with the options that were given you.

(3*2)+(3*4)=6+12=18 feet of pipe

true or false dont guess.
A triangle can be made by segments that are 15.9 cm, 10 cm and 25.9 cm.

Answers

Answer:

false

Step-by-step explanation:

for the segments to form a triangle, then

the sum of any 2 must be greater than the third.

15.9 + 10 = 25.9 ← not greater than 25.9

10 + 25.9 = 35.9 > 15.9

15.9 + 25.9 = 41.8 > 10

then the 3 segments will not form a triangle.

1. Solve: 12 + 24 = 6 x 3 = ?​

Answers

Answer:

False

Step-by-step explanation:

12 + 24 = 36

6 * 3 = 18

Answer: FALSE

Step-by-step explanation: So 12+24= 36 then 6 x 3 = 18 it's not the same answer

Click on the correct equation to show the commutative property. 2 + 3 = 5

Answers

Answer:

3 + 2 = 5

Step-by-step explanation:

Remember Commutative Property by thinking about what happens when someone has to "commute" (driving back and forth to work or school) If the numbers in the addition MOVE then it is Commutative Property.

HELP!!! I ONLY HAVE 2 MINUTES TO TURN THIS IN!!!!!
Write the generic form for a linear equation in slope-intercept form.
ANSWER FIRST TO GET BRAINLIEST!!!!

Answers

Answer:

The general form ax+by+c=0 is one of the many different forms you can write linear functions in. Other ones include the slope intercept form y=mx+b or slope-point form.

Okay so the choices of answers are the same on all three and I do need answers for all three :( pls help! Thanks

Answers

Answer:

1. >

2. <

3. =

Step-by-step explanation:

there are 216 7th grade students in 9 classes find the unit rate

Answers

Answer:

24 students per class

Step-by-step explanation:

Answer:

24 students per class.

Matt took 12 hours to read a 792 page book.

Which rate best represents the relationship between the number of pages Matt reads to the amount of time it took for him to read it?

A. 67 hours per page
B. 66 pages per hour
C. 65 pages per hour
D. 804 hours per page

Answers

The representation of Matt's reading the book is an illustration of unit rates

The best representation of the rate is (b) Matt reads 66 pages per hour

How to determine the representation?

The given parameters are:

Pages = 792 pages

Time = 12 hours

The rate is then calculated as:

Unit Rate = Pages/Time

This gives

Unit Rate = 792/12

Evaluate the quotient

Unit Rate = 66

This means that Matt reads 66 pages per hour

Read more about unit rates at:

https://brainly.com/question/19493296

These are the cost and revenue functions for a line of smartphones:

R(x) = 952x – 0. 68x2

C(x) = -153x + 371,450


Based on these functions, what is the maximum profit that can be made, to the nearest dollar?



A)$68,850


B)$77,456


C)$234,706


D)$332,200

Answers

Answer:

Its B $77,456 I just got it correct on the quiz

Step-by-step explanation:

12. A wildlife manager determines that the

function y = 200 • 1. 07* represents the deer

population at a state park, x years after the

population is first counted. What is the population

after 12 years?

Answers

Answer:

  450

Step-by-step explanation:

To evaluate the function for a particular value of the variable, put that value in place of the variable and do the arithmetic.

__

  y = 200×1.07^x   for x = 12

  y = 200×1.07^12 ≈ 200×2.252 ≈ 450

The deer population is about 450 after 12 years.

Please help me find the answer. WORTH 25 POINTS

Answers

Answer:

10x+5/16

Step-by-step explanation:

just add them all together

:) Hope you enjoy :)

10x+5/16 do pemdas and add

2(n+8)
What is Max’s final number if his starting number 7?

Answers

Answer: 30

Step-by-step explanation:

Answer:

Method 1

2(n+8)

2n+16=2x7+16

14+16=30

Method 2

2(n+8)

2(7+8)=2(15)

=30

Find value of x degrees

Answers

half the hexagon is a straight line so its 180°

then 180 will be divided by the 3 sectors

180°÷3

=60°

Complete the sentence.
The amount of time it takes to give a dog a bath is most likely to be a function of the _____
A. type of food the dog eats
B. size of the dog
C. color of the dog
D. size of the house where the dog lives​

Answers

Answer:

size of the dog

Step-by-step explanation:

Hope this helps

Option B is the correct answer.

Given that, the amount of time it takes to give a dog a bath is most likely to be a function of the _____.

What is the function?

In mathematics, a function from a set X to a set Y assigns to each element of X exactly one element of Y. The set X is called the domain of the function and the set Y is called the codomain of the function.

The amount of time it takes to give a dog a bath is directly proportional to the size of the dog.

Therefore, option B is the correct answer.

To learn more about the function visit:

https://brainly.com/question/12431044.

#SPJ2

A merchant offers a large group of items at 32% off later the merchant takes 16% off the sale prices and claims that the final price of these items is 186 off the original price.

what is the total percent discount?

Answers

The total discount was 48% of the original price of $387.50

What is an equation?

An equation is an expression that shows the relationship between two or more numbers and variables.

Let x represent the original price.

Discount = (32% of x) + (16% of x) = 0.48x = 48% of x

The final price of these items is 186 off the original price.

x - 0.48x = x - 186

x = $387.50

The total discount was 48% of the original price of $387.50

The solution to the equation 6a = 42 gives a = 7

Find out more on equation at: https://brainly.com/question/2972832

I need some help with this please

Answers

Answer:

3^5 = 3 x 5 ( False )

6^3 = 216 ( True )

9^1 = 1^9 ( False )

Step-by-step explanation:

3^5

= 3 x 3 x 3 x 3 x 3

= 243

6^3

= 6 x 6 x 6

= 216

9^1 = 9

First question:  

    [tex]3^5=3*3*3*3*3[/tex] ≠ [tex]3*5[/tex]

    Answer: False

Second question:

   [tex]216 = 6 * 6 * 6 = 6^3[/tex]

    Answer: True

Third Question:

   [tex]9^1[/tex] ≠ [tex]1 * 1*1*1*1*1*1*1*1=1^9[/tex]

   Answer: False

In circle B, m DAC = 60°. Solve for v ifmDC = (7x – 42)°. If necessary,
round your answer to the nearest tenth.

Answers

Answer: 23.1

Step-by-step explanation:

By the inscribed angle theorem, we know the measure of arc DC is 120 degrees. So, we can set 120=7x-42.

162 = 7x

x = 162/7, which is about 23.1

Which statement is true about this comparison? 0.739>0.7380 CLEAR CHECK It is correct because placing a zero at the end of a decimal makes it smaller. It is correct. The digits in the tenths and hundredths places are the same, but in the thousandths place, 9 is greater than 8. It is incorrect because 0.7380 has more digits after the decimal point. It is incorrect. 739 is less than 7,380.

Answers

Answer:

It is correct. The digits in the tenths and hundredths places are the same, but in the thousandths place, 9 is greater than 8

Step-by-step explanation:

Given

[tex]0.739 > 0.7380[/tex]

Required

Select the true statement

Analyzing both number base on the place value.

Tenth: 7 = 7

Hundredth: 3 = 3

Thousandth: 9 > 8

Hence, the statement is correct.

Option B answers the question because 9 is greater than 8

If x – 10 is a factor of x2 – 8x – 20, what is the other factor?

Answers

Answer:

(x−10) (x+2)

Step-by-step explanation:

Leo plans to take 24 credit hours of courses during his freshman year of college. Each credit hour costs $350 for in-state tuition. Housing will cost $7,000, and books will cost $800. How much will Leo pay for tuition, housing, and books for his freshman year of college?​

Answers

Answer:

$16200

Step-by-step explanation:

24 times 350=8400

8400+7000+800

What is the factored form of x^3-1? (x^3-1)(x^2+x+1) (x-1)(x^2-x+1) (x-1)(X^2+x+1) (x^3-1)(x^2+2x+1)

Answers

Answer:The answer is in the attached file

Step-by-step explanation:
Whe

hello, I need help with this. any help is appreciated :)

50 000 cm2 = ? m2

Answers

Step-by-step explanation:

50 000 cm2 = 5 m2

hope it helps

Answer:

[tex]5 meters^{2}[/tex] or 5m2

Step-by-step explanation:

1 meter^2 = 10000 cm

There for we could set up a ratio for this problem

[tex]\frac{x}{50000}: \frac{1}{10000}[/tex]

Using cross-multiplication we get:

[tex]10000x = 50000[/tex]

Divide 50,000 by 10000 we get:

[tex]5[/tex]

Therefore the answer is [tex]5 meters^{2}[/tex]

50 000 cm2 = 5 m2

Hope this helps! :)

Jacob can make 6 math games in 1.6 of an hour. At this rate, how many math games could he make in 4 hours?

Answers

Answer:

15

Step-by-step explanation:

4/1.6=2.5

2.5*6=15

=15

Describe the steps you can use to find an average of
fractional amounts.

Answers

add the fractions then divide the sun by the number of fractions you have.

Two airplanes leave the same airport. One heads north, and the other heads east. After some time, the northbound airplane has traveled 45 kilometers. If the two airplanes are 53 kilometers apart, how far has the eastbound airplane traveled?

Answers

InbeldkxixknsmskalUhuuujuuu

Sports A baseball is thrown into the air with an upward velocity of 30 ft/s. Its
height h, in feet, after t seconds is given by the function.h= -16t2 + 30t + 6. How
long will it take the ball to reach its maximum height? What is the ball's maximum
height? What is the range of the function?

Answers

Step-by-step explanation:

so, the function is

h(t) = -16t² + 30t + 6

we get the point of the extreme value(s) by finding the zero solution(s) of the first derivative of the function.

h'(t) = -32t + 30

finding the zero solution

-32t + 30 = 0

30 = 32t

t = 30/32 = 15/16 seconds

after 15/16 seconds (not even a full second) the ball reaches its maximum height.

the height at that maximum is then h(15/16) :

-16(15/16)² + 30×15/16 + 6 = - 15²/16 + 450/16 + 6 =

= -225/16 + 450/16 + 96/16 = 225/16 + 96/16 = 321/16 =

= 20.0625 ft

and so, the range (the interval or set of all valid functional values) is

0 <= h(t) <= 20.0625

as naturally, on a normal surface and environment, the height of the ball cannot go below 0 (when it hits the ground, it's over).

Solve the equation.
If necessary
Combine Terms
Apply properties
Add Subtract
Multiply
Divide

Answers

Answer:

x=-1

Step-by-step explanation:

3x+12-8x=19+2x (combine liked terms)

-5x+12+19=2x (move variable to the left-hand side and change its sign)

-5x-2x+12=19 (combine liked terms)

-7x=19-12 (divide both sides of the equation by -7)

x=-1

A red ball and 4 white balls are in a box. If two balls are drawn without
replacement, what is the probability of
a getting two white balls?

Answers

Answer:40%

Step-by-step explanation:

10 divided by 2 is 5.

Since there are five balls, and four are white and one is red, if you double that amount, then you would have 8 white and 2 red. So four white balls is equal to 40%.

Please help me pleeeeeeeeeeease

Answers

Answer:

what do you need help on?

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