Mathematics High School

Simplify:
(8 - 5i) - (-2 +3i)

Answers

Answer 1

Answer:

(3) -(1) = 2i

Step-by-step explanation:

use bomdass

Answer 2

Answer:

Step-by-step explanation:

(8-5i)(2-3i)

using FOIL,

16-34i+15i squared?

Related Questions

In PITI what does P stand for?
O A. Principal
O B. Prepayment
O C. Payment
O D. Penalty

Answers

Answer:

O A. Principal

Step-by-step explanation:

happy to help ya :)

It’s A. Pirncipal :) lol

9/14 decimal rounded to the nearest hundredth

Answers

Answer:

It's 0.64 you really couldn't just look this up?

Step-by-step explanation:

just put 9 divided by 14 in your calculater and round

Find the measure of the indicated angle to the nearest degree
A) 18°
C) 48°
B) 42°
D) 26°

Answers

Answer:

The answer is option C

Step-by-step explanation:

To find the indicated angle we use sine

sin ∅ = opposite / hypotenuse

From the question

The opposite is 37

The hypotenuse is 41

So we have

sin ? = 37/41

? = sin-¹ 37/41

? = 64.4805

? = 64° to the nearest degree

Let f(x) = -x + 3
Find f(2)

f(3)=

Answers

Answer:

1

Step-by-step explanation:

f(2) = -2+3

=1

In the above figure, m∠A = 32° and m∠B = (2x + 14)°. If angles A and B are complementary angles, what are the value of x and the measure of angle B? A. x = 22, m∠B = 44° B. x = 22, m∠B = 58° C. x = 67, m∠B = 148° D. x = 54, m∠B = 58°

Answers

Complementary angles have a sum of 90

32+2x+14=90

2x+46=90

2x=44

x=22 the second angle is 58

2(22)+14=58

I need help on this question please!

Answers

5^2 is 25 and 25x6 is 150sq ft

Answer:

150

Step-by-step explanation:

5^2=25

6 times 25=150

Hope I helped!

Is a 20% markup equal to a 20% markdown

Answers

Answer:

no

Step-by-step explanation:

Answer:

no because markup is going up/ increasing and markdown is going down (decreasing)

Step-by-step explanation:

2x + 8y = 28
2x + 8y = 29
e?

Answers

Answer:

The question is unclear. what is e?

Henry picked 278 pears. He is putting the pears in a boxes that each hold 50 pears how many boxes will be able to fill completely

Answers

Answer:

278 divided by 50 is about 5 and a half so 5 would be your answer because he is completely filling 5 boxes.

need help................

Answers

827537517172763 kahvxjx

Ruby is buying chocolates for her friends. The candy store charges $13.80 for a box of chocolates, and each additional piece of chocolate costs $0.23. Ruby has $21 to spend. She buys x additional pieces along with a box of chocolates.

Which inequality correctly represents the given situation?

A.0.23x + 21 ≤ 13.8
B.13.8 + 21 ≤ 0.23x
C.13.8 + 0.23x ≤ 21
D.13.8 + 0.23x ≥ 21

Answers

Answer:

C

Step-by-step explanation:

Answer:

C.

Step-by-step explanation:

hope I helped!!

Let me know if you need an explanation:)

x^(2)-7x=44 solve for x-intercepts.

Answers

Answer:

-4, 11

Step-by-step explanation:

X-intercepts occur at y=0:

x^2-7x-44=0

(x-11)(x+4)0

so we have -4 and 11.

The combined area of a pair of congruent rectangles can be represented, in square units, by the expression 18y^2-818y 2 −8. The length and side of each rectangle can be represented as a difference of squares. What is the perimeter of one of the rectangles?

Answers

Answer:

[tex]Perimeter = 12y[/tex]

Step-by-step explanation:

Given

[tex]Area = 18y^2 - 8[/tex] -- two rectangles

Required

Determine the perimeter of one of the rectangles

First, calculate the area (A) of 1 rectangle

[tex]A =\frac{1}{2}Area[/tex]

[tex]A =\frac{1}{2}(18y^2 - 8)[/tex]

[tex]A =9y^2 - 4[/tex]

Express as difference of two squares

[tex]A =(3y - 2)(3y+2)[/tex]

Area is calculated as:

[tex]A = Length * Width[/tex]

So, by comparison:

[tex]Length = 3y - 2[/tex]

[tex]Width = 3y + 2[/tex]

The perimeter is:

[tex]Perimeter = 2 *(Length + Width)[/tex]

[tex]Perimeter = 2 *(3y-2+3y+2)[/tex]

Collect Like Terms

[tex]Perimeter = 2 *(3y+3y-2+2)[/tex]

[tex]Perimeter = 2 *(6y)[/tex]

[tex]Perimeter = 12y[/tex]

if the length of the longest side of the rectangle is 20cm find the shaded area to the nearest hundredth PLEASE HELPP !

Answers

Answer:

150pi

Step-by-step explanation:

lets just say the two circles are 10 and 10 in diameter. so, one square is 5 radius. The square is 25pi area. so two are 50pi area. the area of the rectangle is 200, so 150pi

Please tell me if I'm wrong D:

Titus and Theresa have collected money and are buying food for a dog shelter. Titus buys 2 bags and 5 cans of dog food, spending $17.50. Theresa buys 6 bags and 2 cans of dog food for $40.80. Let x represent the price of a bag of dog food and y represent the price of a can of dog food. Write a system of equations and use the elimination method to find a reasonable price for a can of dog food.


A)$0.90

B)$1.70

C)$6.30

D)$6.50

Answers

The answer is C $ 6.30

Pleaseee helpp answer correctly !!!!!!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!!!

Answers

Answer:

4

Step-by-step explanation:

In a parallelogram AO and OC are equal. Therefore you should set up the equation 3x-4=8. When you add 4 to both sides you get 3x=12. When you divide both sides by 3 you get x=4

Help plzz and It's continue of math

Homework: Compound Probability (Without Replacement)

2.) There are three nickels, four dimes, and four quarters in your pocket. You randomly pick three coins and place them on a counter. The first coin is a nickel, the second is a dime, and the third is a quarter.
3/110, 8/165, 1/64, 10/273

3.) A box of chocolates contains four milk chocolates and six dark chocolates. You randomly pick a chocolate and eat it. Then you randomly pick another piece. The first piece is milk chocolate and the second piece is dark chocolate.
4/15, 5/18, 5/22, 3/110

Answers

Answer:

For number 2: 8/165

Step-by-step explanation:

The total number of coins = 11 ( 3 + 4 + 4 = 11).

The probability of picking a nickel first = 3/11 ( 4 nickels out of 11 total).

The probability of picking a dime second = 4/10 = 2/5 ( 3 dimes out of 10 coins left).

The probability of picking the third coin as a quarter = 4/9 ( 3 quarters out of 9 coins left).

I don't know the other problem, sorry.

Answer:

2)  8/165

3) 4/15

Step-by-step explanation:

2) P(N,D,Q) = 3/11 x 4/10 x 4/9

3) P(M,D) = 4/10 x 6/9

the crowd at a sporting event is estimated to be 3000 people. the exact attendance is 2486 people. what is the percent error? pls help :)

Answers

Answer:

%error is the difference between the expected and actual 3000-2486=514 514/3000= 17.33% error

Carson drew a line perpendicular to the x-axis through (7,-3). What is its equation and its slope?

Answers

Answer:

equation is x = 7

slope is undefined

Step-by-step explanation:

Answer:

perpendicular to the x-axis means a vertical line. So, all of its points have x-coordinate of 7

The slope of vertical lines is undefined.

Step-by-step explanation:

Mr Nicolo goes on a diet. At the start of the diet he weighs 89.2 kg. He wants to weigh 72.5 kg.
After one month he has lost 4.6 kg. How much more does he have to lose?​

Answers

Answer: 80.6 kg

Step-by-step explanation:

Find the slope of the line passing through the points (7, 7) and (7, -8) find the slope of the line passing through the points (-6, 7) and (9, 7)

Answers

Step-by-step explanation:

to work out gradient

change in y ÷ change in x

first lines gradient

(7 - - 8) ÷ (7 - 7) = 0

second lines gradient

(7 - 7) ÷ (9 - - 6) = 0

At a certain time of day, the sun causes objects to cast shadows at a 65° angle with the ground. At this time of day, a flagpole
casts a shadow that is 9 feet long. How tall is the flagpole to the nearest foot?
A.4 feet
B.7 feet
С.8 feet
D.19 feet

Answers

Answer:

D   19 feet

Step-by-step explanation:

Let x = height of flagpole

tan 65 = x/9

9tan 65 = x

x = 19.3 ≅ 19 ft. to the nearest foot

Find AE if AB=12, AC=16, and ED=5.

Answers

Answer:

the ratio is 12:16=3/4

So AE:5+AE=3/4

4AE=15+3AE

AE=15

Step-by-step explanation:

The length of the line segment AE is 15 units.

What is a triangle?

A triangle is a three-sided closed-plane figure formed by joining three noncolinear points.

Based on the side property triangles are of three types they are Equilateral triangle, Scalene triangle, and Isosceles triangle.

We know, In a triangle if one segment is parallel to one side of a triangle divides the other two sides in the ratio of their corresponding lengths.

Given, AB = 12, AC = 16 and ED = 5, hence BC = AC - AB = 4.

Therefore, AB/BC = AE/ED.

12/4 = AE/5.

4AE = 60.

AE = 15 units.

learn more about triangles here :

https://brainly.com/question/2773823

#SPJ2

plz help
use The information provided to answer the following questions

Answers

Part A

By evaluating the derivative with respect to t of the height function h(t),
which is h’(t)=-2t+4,

we can find the turning point of the quadratic graph by solving h’(t)=0.

-2t+4=0
t=2

Therefore, we can know that when t=2, Sally’s potato attains its maximum height, which is
-(2^2)+4(2)+5
=9
Given that Sam’s potato has been 10 unit high, Sam’s potato went higher than Sally’s did.


=======================

Part B

Note that the for all t where h(t)>0, the potato is still in the air.
So all we need to do is to solve h(t)>0.

-t^2 + 4t + 5 > 0
t^2 - 4t - 5 < 0
(t + 1)(t - 5) < 0
Therefore we get -1 < t < 5.

But t represents time so it can’t be negative.
So the overall solution is 0 < t < 5.
Therefore the total flying time of Sally’s potato is 5 units.

Because the flying time of Sam’s potato is 3.5 units,
Sally’s potato stayed in the air longer.


Maggie has $15.00 and will begin earning an allowance of $10.00 per week. Jess has $5.00 and will begin earning an allowance of $15.00
per week.

When will maggie and jess have the same amount of money and how much money will they have?

PLEASE HELP

Answers

the answer is b

maggie originally had $15.00 so her $10.00 allowance times two weeks allowance equals $35
jess originally had $5.00 so his $15.00 allowance times 2 weeks equals 35

If the ratio of tables to chairs in the school cafeteria is 2 to 5 and there are 154 total objects, how many chairs are there?

A) 110
B) 44
C) 116
D) 120

Will give BRAINLIST

Answers

Answer: The ratio of tables to chairs is 44 chairs.

the answer is B) 44 chairs

Given isosceles ABC, median BD to base AC. Prove ADB=CDB. AB=, AD=, BD=, ADB=
PLEASE GIVE IN A STATEMENT REASON

Answers

Answer:

1. AB=CB                     def  of isosceles triangle

2. AD=CD DEF           of median

3. BD=DB                    reflexive property

4. ADB=CDB               SSS

Step-by-step explanation:

ummmm its just the right answer trust

Answer: 102

Step-by-step explanation: math

8th grade math, please help.

Answers

Answer:

x=25

Step-by-step explanation:

It is because it alternates with the angel m<25⁰

HOPE IT HELPS

Answer:

X=, 25°

Because alternative interior angles are equal

Solve the equation. Check your solution and show all your work.


very confused about this and how to execute it to be honest ​

Answers

Answer:

t = 19 1/4

Step-by-step explanation:

24 1/2 = t + 5 1/4

49/2 = t + 21/4

t + 21/4 = 49/2

t = 49/2 - 21/4

t = 98/4 - 21/4

t = 77/4

t = 19 1/4

24 1/2 = 24.5, 5 1/4 = 5.25

24.5 = t + 5.25
subtract 5.25 from both sides
19.25 = t

19.25 = 19 1/4

A group of five friends goes to a show each ticket cost nine dollars and the friends share popcorn the cost six dollars which shows the total cost?

Answers

Answer:

9x5+6

Step-by-step explanation:

5 people x $9 ticket + the $6 popcorn

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