Mathematics High School

If i = -1, then i^2 =

Answers

Answer 1

Answer:

1

Step-by-step explanation:

The exponent is the number of times you multiply the base aka i in this case.

i = -1

Substitute -1 for i.

-1^2

-1 x -1 = 1

because when you multiply two negatives they make a positive.

mark me brainliest : )

Related Questions

4(5x-2)=2(9x+3)
help please!
12 points and
brainliest

Answers

Answer:

x = 7

Step-by-step explanation:

Given

4(5x - 2) = 2(9x + 3) ← distribute parenthesis on both sides

20x - 8 = 18x + 6 ( subtract 18x from both sides )

2x - 8 = 6 ( add 8 to both sides )

2x = 14 ( divide both sides by 2 )

x = 7

heyy i need ur help plz

Answers

Answer:

- 1/3

Step-by-step explanation:

3x-4 = -5

3x = -5 + 4

3x = -1

x = -1/3

-3

Work: 3x -4=-5
3x=-1
X=-3

Please help. It would be great.

Answers

answer is BBBBBBBBBB trust
Answer: B
Hope it helps :)

The tax on soda is 3 cents per ounce. How much is 3 ounces

Answers

Answer:$9

Step-by-step explanation:

Write the slope-intercept form of the equation of the line through the given points:
through: (2, -3) and (-2, -5)

Answers

Answer:

equation of line

x-2y=8

Step-by-step explanation:

equation of line in slope intercept form

(y-y1)={(y2-y1)/(x2-x1)}(x-x1)

 or,(y+3)={(-5+3)/(-2-2)}(x-2)

 or,(y+3)=(1/2)(x-2)

  or,2y+6=x-2

   or,6+2    =x-2y  

or,x-2y=8

3. The bill at a restaurant
came to $136.40. The
patrons decided to leave a
15% tip. What was the total
bill including tip?

Answers

Answer:

$156.86

Step-by-step explanation:

$136.40 + 15% = $20.46

$136.40 + $20.46 = $156.86

You can also turn 15% into a decimal, so it would be 0.15
0.15 • 136.40 = 20.46
The Tip amount is 20.46
20.46+ 136.40 = (156.89)
(Total amount with Tip is 156.89)

Graph h(x)=8 I x+1 I -1.

Answers

Answer:

search it up its there

Step-by-step explanation:

Evaluate each using the values given. You must show all the work including the steps to solve.

1) 5 + x(y2 - (x + 2)); use x = 2, and y = 4

Answers

Answer: 5
5 + 2(4 x 2 - (2 +2))
5 + 2(8 - 2(2 + 2))
5 + 2( 8 - 8)
5 + (2)(0)
5 + 0
=5


What is the salesperson's commission on a
$1300 sale if the commission rate is 10%?

Answers

Answer:

$130

Step-by-step explanation:

Answer:

$130

Step-by-step explanation:

1300×10%

$130

A recursive formula for the sequence 18, 9, 4.5, ... is

Answers

Answer:

Hope this image helps answer your question

and mark brainliest please.

The recursive formula is aₙ= aₙ₋₁ /2 for n > 1.

What is Recursive Formula?

A recursive formula is a formula used to describe a sequence of numbers, where each term in the sequence is defined in terms of the preceding term(s). In other words, it is a formula that uses one or more of the previous terms in the sequence to generate the next term.

The recursive formula for a sequence gives a way to find any term of the sequence using the previous term(s).

To find the recursive formula for the sequence 18, 9, 4.5, ..., we need to look at how each term is related to the previous term.

We can see that each term is half of the previous term, so the recursive formula is:

a₁ = 18 (the first term is given)

aₙ= aₙ₋₁ /2 for n > 1

This means that to find the nth term of the sequence, we divide the (n-1)th term by 2. For example:

a_2 = a_1/2 = 18/2 = 9

a_3 = a_2/2 = 9/2 = 4.5

a_4 = a_3/2 = 4.5/2 = 2.25

and so on.

Learn more about Recursive Formula here:

https://brainly.com/question/8972906

#SPJ2

find the difference (10j-7)-(9j-2)

Answers

Answer:

j-9

Step-by-step explanation:

combine like factors

subtract nine from both sides, j-7=-2

subtract 2 from both sides, -2-7=-9, j-9

Answer:

j-5

Step-by-step explanation:

(10j - 7) -(9j - 2) = x

(10j - 7) = x + (9j - 2)

10j - 7 = x + 9j - 2

10j - 9j -7 + 2 = x

x = ( j - 5)

The museum sells admission tickets for $15 for each adult and $5 for each child. During one day, they collect $995 after selling x adult tickets and y children's tickets. What does the point (11,166) mean In this situation? ASAP Brainliest!

Answers

Step-by-step explanation:

The point (11,166) means they sold 11 adult tickets and 166 children tickets

I hope this helps and ill take my brainilest please :)

Which of the following is an extraneous solution of StartRoot negative 3 x minus 2 EndRoot = x + 2?

Answers

Answer:

x=-6

Step-by-step explanation:

the liu family buys 20 pounds of chicken at the local market for 50 dollars which equation can be used to represent the coast c of buying x pounds of chicken at the same price per pound

A) C=20x
B) c=0.4x
C. C=2.5x
d) c=50x​

Answers

Answer:

b

Step-by-step explanation:

Answer my math question I asked so many times I lost most of points by

Answers

Answer:

im sorry i wish i can help

Step-by-step explanation:

After 4 minutes of reading, Aaron was on page 14 of his book. After 8 minutes he was on page 20. Which equation models the page number, y, in terms of minutes x?

Answers

Answer:

B

Step-by-step explanation:

4×14=568×20=160160×56=8960

Chen completed the division problem below.

0.9 StartLongDivisionSymbol 192.6 EndLongDivisionSymbol right arrow 9 StartLongDivisionSymbol 192.6 EndLongDivisionSymbol minus 18 = 12. 12 minus 9 = 36. 36 minus 36 = a remainder of 0 and a quotient of 21.4.

What is Chen’s error?
He included a 4 in the quotient, which does not belong.
He multiplied the dividend by 100 instead of 10.
He should have multiplied both numbers by 100.
He did not subtract correctly in one of the steps.

Answers

Answer:

he included four and does not belong in the quotient

Step-by-step explanation:

i took the test ;)

Please help me with these two questions I hate math

Answers

Answer:

Y-values are range

X-values are domain

Step-by-step explanation:

URGENT

PLEASE AND HELP MY FRIEND SHE/HE WILL MARK BRAINLIST



https://brainly.com/question/19458627?utm_source=android&utm_medium=share&utm_campaign=question​

Answers

Answer:

What?

Step-by-step explanation:

Okay.

A school system is reducing the amount of dumpster loads of trash removed each week. In week 5, there were 40 dumpster loads of waste removed. In week 10, there were 30 dumpster loads removed. Assume that the reduction in the amount of waste each week is linear. Write an equation in function form to show the amount of trash removed each week.

Answers

Answer:

The answer is f(x) = -3x + 60

Step-by-step explanation:

Answer:

f(x) = −2x + 50

Step-by-step explanation:

The cost to rent a dump truck is $50 per day plus $26 per hour of use. What is the maximum number of hours the truck can be used each day if the rental cost should not exceed $193 per day?

Answers

Answer:

solve 26x+50=193 which equals 5.5

Step-by-step explanation:

- Find the slope with the given coordinates. (-3,1) (6,7)

Answers

Answer:

Slope=2/3

Step-by-step explanation:

slope is rise over run so you do y^2-y^1/x^2-x^1 which in this case would get you 7-1/6-(-3) that gives you 6/9 which simplifies to 2/3

does anybody understand

Answers

Answer:

A=6(9n^2+26n+36)

Step-by-step explanation:

A=6s^2

s=3n+6

A=6(3n+6)^2

A=6(3n+6)(3n+6)

A=6(9n^2+18n+18n+36)

A=6(9n^2+26n+36)

I hope this helps; please award brainliest!

The second of three numbers is 11
less than the first. The third number is
5 less than the second. If the first
number is twice as large as the third,
find the three numbers.

Answers

Answer:The sum of three numbers is 112.

a+b+c=112

The second number is 5 times the first.

b=5a

so a+5a+c=112

6a+c=112

The third number is 20 less than the second. What is the second number?

c=5a-20

6a+5a-20=112

11a-20+20=112+20

11a/11=132/11

a=12

Step-by-step explanation:

Please help me ASAP!!!

Answers

Answer:

The answer is 100% without a doubt A

Step-by-step explanation:

Answer:

get stickbugged lol

Step-by-step explanation:

lol XD

A math book consists of two sections: arithmetic and geometry in the ratio 5:3. How much of each type of content will be needed to make a book of 480 pages?

Answers

Answer:

As the ratio is 5:3, it totals 8 parts. I would do 480 divided by 8 to get the number of pages per part, then multiply that number into the ratio.

480 / 8 = 60

The value of each part being 60 put into the ratio 5:3 = 60x5 : 60x3

Which gives your answer.

If Peter pays $84 to buy a watch after a discount of 30%, find the original price of the watch

Answers

(Original price) - 0.30p = 84

Let p = Original Price of the watch

p - 0.30p = 84

0.70p = 84

p = 84 ÷ 0.70

p = 120

The original price of the watch is $120.

Answer:

The original price was $120.

Step-by-step explanation:

Let the original price of the watch be w.  

Then the discount is 0.30w and the discounted price is (1-0.30)w, or 0.70w.

Writing an equation in w, we get 0.70w = $84.

Solving this for w, we divide both sides by 0.70:

w = (84)/0.70 = $120

The original price was $120.

Write in standard form the equation of a line that is perpendicular to y+2 = 1/5 (x+1) and goes through the point (7,22).

The answer choices are down below. Whoever helps will be much appreciated.

Answers

Answer:

Step-by-step explanation:

I think A

help meeeee pleaseeeee

Answers

Answer:

it's either the 1st one or the 2nd one

Step-by-step explanation:

Answer:

a. or c. I'm not sure to my answer

Which of these expressions is equivalent to 3( x-2)

A. 3x - 6
B. 3x -2
C. 3x + 2
D. 3x + 6​

Answers

Answer:

the answer is B because 3(x-2) is the same as 3x -2

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