Answers
Answer:
d
Step-by-step explanation:
Answer:
[tex]122+154i[/tex], D
Step-by-step explanation:
[tex]\mathrm{Apply\:complex\:arithmetic\:rule}:\quad \left(a+bi\right)\left(c+di\right)=\left(ac-bd\right)+\left(ad+bc\right)i[/tex]
[tex]a=14,\:b=-2,\:c=7,\:d=12[/tex]
[tex]=\left(14\cdot \:7-\left(-2\right)\cdot \:12\right)+\left(14\cdot \:12+\left(-2\right)\cdot \:7\right)i[/tex]
[tex]=122+154i[/tex]
Related Questions
What should be done to x^2-10x in order to create a perfect square?
A)subtract 25
B)subtract 5
C)add 5
D)add 25
Answers
Answer: B)subtract 5
(x-5)^2-25
Step-by-step explanation:
2a=-10
Divide both sides by 2
2a/2=-10/2
Simplify
a=-5
Add and subtract
x^2-10x+(-5)^2-(-5)^2
Complete the square
(x-5)^2-(-5)^2
Simplify;
(x-5)^2-25
Answered by one other than the ONE & Only #QUEEN herself aka #DRIPPQUEENMO!!
HOPE THIS HELPED!!
Each week, Cody earns $15 and spends $12. Which table can you use to determine how much money Cody will save in 6 weeks?
a
b
c
d
Listen NEXT
Answers
Answer:
$18
Step-by-step explanation:
15 x 6 = 90
12 x 6 = 72
90 - 72 = 18
He saves 18 dollars
There are no pictures with the multiple choice answers.
My guess would be a line graph
A rectangular prism has a volume of 97.5 cubic inches. The length is 5 inches and the height is 3 inches. What is the width of the rectangular prism?
Answers
Answer:
6.5
Step-by-step explanation:
3X5=15
97.5/ 15 = 6.5
Which points are on the graph of the line 32 +6y=18? Check all that apply.
(-2,4)
(0,3)
0 (0,6)
(3,0)
0 (4, -2)
(6,0)
Activate
Answers
You leave home and walk 3 blocks east, then 4 blocks north. How far are you from
home?
Answers
If you go 3 blocks East and 4 north, they are like the straight sides of a triangle, so to find the diagonal distance, or the shortest distance, you would find the diagonal side of a triangle it is
A squared + B squared = C squared
So 3x3 = 9
And 4x4 = 16
16+9=25
And the square root of 25 is 5
Please correct me if I am wrong and have a good day
Jacub is trying to find the volume of a traffic cone that has the height of 2.4 ft and a diameter of 1.25 ft. He calculated that the
volume is 11.8 ft. What did he do wrong?
CAN SOMEONE HELP ME PLEASE!❤️ i would really appreciate it it’s due today and I’m having trouble understanding this question. 4/15/21
Answers
Answer:
he did half the diameter
Step-by-step explanation:
x^2+18x+c I have to solve for c
Answers
Answer: 81
Step-by-step explanation:
Find the volume of a pyramid with a square base, where the area of the base is
13.2 cm² and the height of the pyramid is 13.7 cm. Round your answer to the
nearest tenth of a cubic centimeter.
Answers
Answer:60.3cm^3
Step-by-step explanation:
i got it wrong and that was the answer lol
Can someone help me find what x equals , step by step ASAP!!
Answers
Answer:
x=8
Step-by-step explanation:
6x+42=90
6x=48
x=8
please help me with this
Answers
Answer:5,2,4,8
Step-by-step explanation:hope it helped
Abbie is 5 years older than twice her sister’s age. Abbie is 25 years old. Which
equation can be used to find her sister’s age?
Answers
5 years older than twice her sisters age so subtract 5 from 25
A rectangle has a length of 2x+3 and a width of 10x-4. Find the perimeter and area of the figure
Answers
Step-by-step explanation:
perimeter is 4x+6 +20x-8=20x-2
area is 20x^2+22x-12
Darius deposits $300 into a new savings account. The account earns simple interest at a rate of 2.18% annually. How much money does Darius have in his account at the end of the first year?
Answers
Write the equation of the line, with the given properties, in slope-intercept form.
Slope = -7, through (-5,5)
What is the equation of the line?
Answers
Answer:
y=-7x-30
Step-by-step explanation:
y-y1=m(x-x1)
y-5=-7(x-(-5))
y-5=-7(x+5)
y=-7x-35+5
y=-7x-30
plzz help if right i give brainliest
Answers
Answer:
b. (x+6)(x-6)
Step-by-step explanation:
x^2-36 So to get to this answer you can do two things
1. Guess and check
2. Factor it out (which is what I like to do)
In order to get x^2 you need 2xs that are positive which knocks out c and d
Then to get to -36, you need to multiply a positive 6 and a negative 6
(This was poorly explained but if you need anymore help just lmk)
What is the answer to 8x<6? Please help
Answers
Answer:
x<3/4
Step-by-step explanation:
8x<6
x<6/8
x<3/4
I hope this helps
Answer:
x = 3/4
Step-by-step explanation:
Help!!!!! Please
!!!!;!;!!;!!;
Answers
Answer:
Step-by-step explanation:
(b)
The Student Athletes Club has a
monthly budget of x dollars. Every
month $500 is spent on transportation
One-third of the remaining budget is
spent on monthly activities. Which
function can be used to find the
amount in dollars spent on monthly
activities?
A f(x)= *
1-500
4
*+500
B f(x) =
C f(x) = 500 -
D f(x) = 500 +
A.2(C)
Answers
Answer:
Step-by-step explanation:
find the area of the shaded region. round your answer to the nearest hundredth
Answers
Answer:
16 meters
Step-by-step explanation:
sana makatulong
PLSS HELP ME ASAP!!!
What is the area of the triangle?
Answers
Answer:
45cm^2 is your answer :)
Step-by-step explanation:
A hot liquid is placed in a refrigerator to quickly cool down. The temperature of the liquid can be modeled with the exponential function T=a(b)^m where m is the number of minutes it has been cooling. Based on the graph below, which of the following is closest to the value b for this model?
1) b=0.65
2)b=0.84
3)b=1.28
4)b=2.17
Answers
Answer:
This is 3
Step-by-step explanation:
Jada's teacher fills a travel bag with 5 copies of a textbook. The weight of the bag and books is 17 pounds. The empty travel bag weighs 3 pounds. How much does each book weigh?
Answers
Answer:
Correct
5x + 3 = 17
Step-by-step explanation:
So we need to find the book wieght only so take away the bag's weight from the total. 17-3=14. Now it says 5 books so divide 14 by 5 which is 2.8.
= 2.8 pounds
Last year, a lighting supplier called Bright Idea shipped a total of 37,220 lamps to its distributors. This year, the supplier shipped 29,776 lamps. What is the percent of decrease in the number of lamps shipped annually?
Answers
Answer:
25%
Step-by-step explanation:
Given data
Last years shipment= 37220 lamps
These years shipment= 29776 lamps
% Decrease= Initial-Final/Initial*100
% Decrease= 37220-29776/29776*100
% Decrease= 7444/29776*100
% Decrease= 0.25*100
% Decrease= 25%
Hence the decrease is 25%
PLEASE HELP ME ANSWER BESTIES !!!
Answers
I would say 12 and 14 because if you were to evaluate that square root, you would get −13.0384048104 and that would lie between 12 and 14.
If I'm wrong, sorry.
Vicky cut a string into 4 equal pieces. She started with a string that was 5.4 inches long. How many inches long was each piece that Vicky cut?
Answers
Answer: 1.35 inches
hope this helps
Volume? Correct answers please
Answers
Answer:
V = 1385.44
Step-by-step explanation:
The equation for volume is V = π r 2 h! Where V = volume, r = radius (half the diameter), and h = height. Now lets substitute what we know into this equation!
Since we are giving the diameter (14) we must divide by 2 to find the radius.
14 ÷ 2 = 7
Radius = 7
Height = 9
V = ?
Time to plug these values in!
V = π [tex]7^{2}[/tex] (9)
We have to distribute pi to 7 square that term and then multiply the value by 9.
V = 1385.44
Hope this Helps! :)
Have any questions? Ask below in the comments and I will try my best to answer.
-SGO
3/4 ft= blank inches
Answers
3/4 feet = inches
What are the zeros of f(0) ** - 202
OAX-5 and x4
BN-10 and x = 2
OCX-2 and x = 10
DX-4 and 5
Answers
Answer:
b
Step-by-step explanation:
How much larger is 6 x 10^5 compared to
2 x 10^3?Explain how you know.
Answers
Answer:
6 x 10^5 is 300 times greater than 2 x 10^3.
Step-by-step explanation:
Use division to compare.
(6 × 10^5)/(2 × 10^3) = 6/2 × 10^5/10^3 = 3 × 10^2 = 3 × 100 = 300
6 x 10^5 is 300 times greater than 2 x 10^3.
There is 6 × 10⁵ is 300 times greater than 2 × 10³.
What is the Scientific Notation?Scientific Notation is a way of writing down in the easy form of very large or very small numbers.
The exponents are given in the question, as follows:
6 × 10⁵ and 2 × 10³
The exponents in scientific notation as a shorthand for the number of zeroes in the number.
We use division to compare.
( 6 × 10⁵)/(2 × 10³)
= 6/2 × 10⁵/10³
= 3 × 10²
= 3 × 100
= 300
This means 6 × 10⁵ is 300 times greater than 2 × 10³
Learn more about the Scientific Notation here :
https://brainly.com/question/20533245
#SPJ2
which of the expressions have a value of 2?
Answers
Answer:
The answers are B and E
Step-by-step explanation:
The square root of 4 is 2.
The cube root of 8 is 2.
A is wrong because its value is 4.
C is wrong because its value is 4.
D is wrong because the square root of 8 isn't whole.
Answer:
E. √4
B. ³√8
Step-by-step explanation:
You can find this simply by putting it into a calculator if you have access to one. Just type √ and 4. If you don't have a calculator, you can just use the knowledge that 2 × 2 = 4, hence why it's the square root of 4 :)
You can also determine that B is correct by doing 2 to the power of 3.
2³ = 8, so you know that B is correct too.