Answer:
Multiplying a complex number by a real number
(x + yi) u = xu + yu i. In other words, you just multiply both parts of the complex number by the real number. For example, 2 times 3 + i is just 6 + 2i. Geometrically, when you double a complex number, just double the distance from the origin, 0.
binomial methods
Complex numbers use binomial methods of multiplication because unlike real numbers, imaginary numbers have two components.
So probably A. I sorry, but I need more information. Hope this helps
Step-by-step explanation:
I just took the test and the answer that was right was d. scaling and rotation
For the sequence below, explain the pattern in words.
14. 11. 8. 5....
Answer:
you subtract the number by 3
Step-by-step explanation:
the pattern is x-3 so the pattern is subtracting the number by 3 every time
Dwight is making accessories for the soccer team. He uses 648.62 inches of fabric on headbands for 39 players and 2 coaches. He also uses 331.89 inches of fabric on wristbands for just the players. How much fabric was used on a headband and wristband for each player?
Answer:
24.33 inches
Step-by-step explanation:
inches of fabric on headbands = 648.62 inches
39 players and 2 couches = 41 people
Inches of fabrics per person = Total headbands inches / number of people
= 648.62 inches / 41
= 15.82 inches per person
Inches of fabrics used for headbands per person = 15.82 inches
inches of fabric on wristbands = 331.89 inches
Used for players alone
Inches of fabrics for wristband pee person = Total inches of fabrics for wristband / number of people
= 331.89 inches / 39 players
= 8.51 inches
Inches of fabrics used for wristband per person = 15.82 inches
How much fabric was used on a headband and wristband for each player?
= Inches of fabrics used for headbands per person + Inches of fabrics used for wristband per person
= 15.82 inches + 8.51 inches
= 24.33 inches
Inches of fabrics used on headband and wristband for each player is 24.33 inches
PLEASEEEEE I NEED HELP!!!!!
What is the slope for the following equations? (use the format m=#)
(1 Point)
y = 1/5x -2
Enter your math answer
Edward deposited $9,000 into a savings account 2 years ago. The simple interest rate is 4% How
much money did Edward earn in interest?
Substitute the values into the equation.
Interest=$ 3.0. years
Please help
Answer:
$734.40
Step-by-step explanation:
y=9,000(1.04)^t is our equation for this.
The 9,000 is the starting amount.
1.04 is the 4% since 4% is 4/100 which equals 0.04, then we add 1 to that since it's increasing in value.
y represents our output.
t represents time (in years for this equation)
Since they give us the amount of years since he deposited the $9,000, we put the number they gave us (2 years) into the equation, replacing t.
y=9,000(1.04)^2
Put the right side into a calculator and it gives you 9734.4.
That's the total amount he has now, so to find how much he earned we subtract the starting amount (9000).
734.4.
Edward earned $734.40.
What type of triangle has an exterior angle that is obtuse at two vertices? Explain your reasoning.
Answer:
A right triangle
Step-by-step explanation:
A right triangle would meet these characteristics. A triangle's inner angles always add up to be 180 degrees. A right triangle has one angle at 90 degrees meaning the other two angles need to be less than 90 degrees and sum up to be 90 degrees. This would indicate that both of these angles' exterior angles would be obtuse because they would be wider than 90 degrees.
Which two lines are perpendicular?
A
2x−6y=−12
and
3x−y=−5
B
6x−15y=−60
and
2x−5y=10
C
2x+5y=7
and
−6x−15y=−21
D
y=2
and
2x−3y=10
E
2x−3y=12
and
3x+2y=10
Answer:
A
2x−6y=−12
Step-by-step explanation:
Write the number positioned at point B
Answer:
-5.5
Step-by-step explanation:
because it is...
what's the ANSWER to -5x+y+9-4x-8y+11
Step-by-step explanation:
-5x+y+9-4x-8y+11
-9x-7y+20
There are 120 slices of pizza in 12 pizzas. If there are the same number of slices in each pizza, how many slices of pizza are in 5 pizzas?
Answer:
50 slices
Step-by-step explanation:
120/12 is 10 per pizza, and there are 5 pizzas. 5pizzas x10 slices is 50 slices.
Hope this helps :D plz mark brainliest if correct
Answer:
50 slices
Step-by-step explanation:
Please answer this ASAP
Answer:
D
Step-by-step explanation:
can someone please help i’ve been stuck for like 30 minutes
Answer;
Angle EGF is 180-10x+15=195-10x. From the sum of angles in a triangle we know that 6x+15+195-10x+40=180. Thus the answer is x=35/2
You start at -1, 1. Move left three units and right eight units. Where do you end?
Answer:
-1.1-.3=-1.4 -1.4+.8=-0.6
Step-by-step explanation:
Please help me on this I-Ready task, I have no clue
Answer:
4.2 miles
Step-by-step explanation:
Using the pythagorean theorem, a^2 + b^2 = c^2
youll get 3.6^2 + 2.2^2 = 17.8
sqrt of 17.8 = 4.2
Don’t answer unless you’re 100% sure
Also, explain how you also got the answer.
Answer:
a ( copper and nickel
b ( 1034.9
Step-by-step explanation:
Add all the values of melting points
2,651 + -37.89 = 2613.11
2613 + -458 = 2155.11
2155.11 + 1984.32 = 4139.43
Divide the number by the number of numbers: 4139.43/4 = 1034.8575
1034.8575 rounded to the nearest tenth is 1034.9, thats how you find the mean, or the average.
Which value is an input of the function?
Answer:
x
Step-by-step explanation:
the value of x is the input and value of y is the output
simplify:6/root3
pls answer fast
Answer:
[tex]2 \sqrt{3} [/tex]
Step-by-step explanation:
[tex] \frac{6}{ \sqrt{3} } \times \frac{ \sqrt{3} }{ \sqrt{3} } = \frac{6 \sqrt{3 } }{3} = 2 \sqrt{3} [/tex]
d – 8 = 6
Don’t forget to show work
Answer:
d = 14
Step-by-step explanation:
d = 6 + 8
d = 14
I hope it helps you
Answer:
d = 14
Step-by-step explanation:
d - 8 = 6
+8 +8
d = 14
You basically do backwards PEMDAS but you do the opposite of each thing and when you do the opposite you cancel it out on the side it is on.
please please help me out no one helps me and i really need a lot of help this is due today!!!
Answer:
here u go:
m-a-t-h-w-a-y is a good site if you need fast answers but it doesnt explain anything btw
Which of the following points is on a circle if its center is (-13,-12) and a point on the circumference is (-17, -12)? What is arc PT?
Answer: the first one is (-9,-12) the second one is 13 or 25 i'm not sure
Step-by-step explanation:
Consider the following linear equations. y = 2x + 5 y = 2x - 3 Which statement below if True?
A. The line for one equation is more steep than the other.
B. The line will move from crossing at the y-axis at 5 down to crossing the y-axis at -3
C. The y-intercepts are the same in both equations.
D. The line for each equation will be the same.
Answer:
B.
Step-by-step explanation:
One of the lines is going to have the y-intercept of -3
8/7 fo bill's coins are pennies what % are pennies
Answer:
The first one penny is: Smell that? It's a cent (scent).
The second penny is: See that fruit? It's a pear (pair).
The first one penny is: Smell that? It's a cent (scent).
The second penny is: See that fruit? It's a pear (pair).
The third penny is: See the cars? It's three Lincolns.
The fourth penny is: See the snakes? That's four copper heads.
The fifth penny is: See the sex (secks is a group of 5)? With 5 pennies, you never will.
Step-by-step explanation:
Determine if the situation is linear or exponential and choose the correct equation to represent the situation. "Each year the local country club sponsors a tennis tournament. Play starts with 128 participants. During each round, half of the players are eliminated. "
Answer:
It's exponential and the fiftth option, y = 128(1/2)^x
Step-by-step explanation:
The circumference of a circle is 78.5 inches.
What is the diameter of the circle? (Use 3.14 for pi)
Answer:
about 490.38
Step-by-step explanation:
what is the exact amount of water our body contains?
Answer:
Up to 60% of the human adult body is water.
Step-by-step explanation:
Answer:
73% water, and the lungs are about 83% water. The skin contains 64% water, muscles and kidneys are 79%, and even the bones are watery: 31%.
Step-by-step explanation:
What is y – 3 = 7 (x – 5) in standard form?
Answer:
38=7x-y
Step-by-step explanation:
standard form= Ax+By+C
(y-3=7(x-5))
(y-3=7x-35)+3 to both sides
(y=7x-38) +38 to both sides
(y+38=7x) -y to both sides
38=7x-y
you have to move the 38 and y because if you moved the x value, than A becomes negative and it can't be in standard form
Answer:
7x-y=32
Step-by-step explanation:
I really hope this helps! :)
Plz help! Question is below! The first number is a negative (-1 4/5)
help me i need to finish this
Answer:
its both C and D
Step-by-step explanation:
Answer:
Please help me with my question no one has answered, and I have a whole module due by 3:45 that I haven't even started on.
will mark BRAINLIEST
Answer:
3 workbooks 5 dry earase markers
Step-by-step explanation:
seems to me like you need help offten
4 questions 20 points please help
1) Identify whether the following situation represents causation: As the weather gets hotter, more bottled water is consumed.
A. yes
B. no
C. there is correlation not
causation
D. cannot tell
2) As the number of hours of watching TV increase, the scores students received on tests decrease. Is this an example of causation?
A. no
B. yes
C. this is an example of
correlation not causation
D. cannot tell
3) Identify whether the following situation represents causation: Exercising 45 minutes a day leads to weight loss.
A. yes
B.no
C. this is an example of
correlation
D. cannot tell
4) Identify whether the following situation represents causation: The price of a limited edition toy increases as demand increases.
A. yes
B. no
C. this is an example of
correlation
D. cannot tell
Answer:
1, A 2, b 3,D 4, c
Step-by-step explanation:
I think this are the answers
