Which expression is equivalent to (9 + 3i) - (-4 + i)?
A. 5 + 2i
B. 5 + 4i
C. 13 + 2i
D. 13 + 4i
Answers
Answer:
c.
Step-by-step explanation:
from the expression (9 + 3i) - (-4 + i);
STEP 1: multiply (-4 + i) by the minus sign before it.
we have +4 - i as the result.
we are left now with:
9+3i+4-i.
STEP 2: grouping those with same values,
9+4+3i-i= 13+2i
Related Questions
Is 7 a factor of 34q+ 37r?
Answers
Answer:
no
Step-by-step explanation:
1) Analyze the equation: y = 5x + 10 What is the y-intercept? *
5
-5
10
-10
Answers
Answer:
10
Step-by-step explanation:
Plug in x=0
5(0)+10
0+10=10
Answer:
y=10
Step-by-step explanation:
First, you have to substitute x=0
y=5 x + 10
y=5 x 0 + 10
Solve the equation for y
y=10
Which statement correctly describes the expression (-15)3?
A. One factor is positive and one factor is negative, so the product
will be negative
B. Both factors are positive, so the product will be positive.
C. One factor is positive and one factor is negative, so the product
will be positive.
D. Both factors are negative, so the product will be positive.
Answers
-15 is a negative factor
3 is a positive factor
When a negative and positive is multiplied it produces a negative answer
The diameter of a circle is 11 ft. Find its area to the nearest tenth.
Answers
Answer:
95.0 ft²
Step-by-step explanation:
r = d/2
r = 11/2
r = 5.5
Area of circle formula
a = πr^2
a = π (5.5)²
a = 3.14 * 30.25
a = 94.985
Rounded
a = 95.0
I'm not sure if it's correct but it might 95.03^2ft
can ace and expert help me
Answers
Answer:
D
Step-by-step explanation:
math also i gtg cya :D
? Help me plzzz correct answer gets brainliest
Answers
Answer:
B?
Step-by-step explanation:
im s0rry im n0t sure
In a certain Algebra 2 class of 30 students, 7 of them play basketball and 15 of them
play baseball. There are 10 students who play neither sport. What is the probability
that a student chosen randomly from the class plays basketball or baseball?
Answers
Answer:
P=2/3Explanation:
since there are 10 students who play neither sport over 30, this means 20 students play basketball or baseball or both! (among them 2 students who play both basketball and baseball)
∴ the probability that a student chosen randomly from the class plays basketball or baseball is 20/30 and that equals 2/3 or 66.66%
PLZ HELPPPPPPPPPPPPP
Answers
Answer:
a, d
Step-by-step explanation:
If you place a 32-foot ladder against the top of a building and the bottom of the
ladder is 24 feet from the bottom of the building, how tall is the building? Round to
the nearest tenth of a foot.
Please respond ASAP
Answers
Answer:21.2
Step-by-step explanation:
delta math
If D E F is similar to A B C, what is the similarity ratio of Triangle D E F to triangle A B C? Triangles A B C and D E F. Side A B is 8, B C is 6, and A C is blank. Side D E is 12, E F is 9, and D F is blank. a. 3:2 c. 3:4 b. 2:3 d. 4:3 Please select the best answer from the choices provided A B C D
Answers
Answer:
A 3:2
Step-by-step explanation:
Answer:
A 3:2
Step-by-step explanation:
cual es el resultado de a+8 =12
Answers
Answer:
a+8=12
a=12-8
a=4 (cuatro)
Step-by-step explanation:
.......................
The amount that a craftsman will charge for an item depends on the
amount that he spends on materials, m, and is determined by the
equation a = 2.5 + 2.5m, where a is the amount charged for each
item. What is the value of the dependent variable, if the value of the
independent variable is 3?
Answers
Answer:
$10
Step-by-step explanation:
m is the independent variable, and a the dependent one.
If m = 3, a = 2.5 + 2.5(3) = 10
The craftsman charges $10 when m = 3.
A factory makes 1,200 shirts every 6 hours. The factory makes shirts for 9 hours each workday. How many shirts does the factory make per hour? shirts per hour How many shirts does the factory make per workday (9 hours) ? shirts per workday How many workdays will it take to make 12,600 shirts? workdays
Answers
Answer:
they make 200 per hour and 1800 every 9 hours and it would take 7 workdays to make 12,600
Step-by-step explanation:
yep I'm smart
is this equation have a solution or not
y = [tex]\frac{3}{4}[/tex] x
3x - 4y = 0
Answers
Answer:
No solution.
Step-by-step explanation:
y + 3x - 4y = 0 + 0.75x
- 3y + 3x = 0 + 0.75x
- 3y + 3x - 0.75x = 0 + 0.75x - 0.75x
- 3y + 2.25x = 0
Can you help there is not an answer choice
Answers
Answer:
-3[tex]\frac{43}{72}[/tex]Step-by-step explanation:
chage the proper fraction to improper and then multiply
Exact Form: − 259/72
Decimal Form: − 3.5972
Mixed Number Form: − 3 43/72 (answer)
How to:
Simplify the expression.
Have a great day and stay safe !
What value of x will make x1/4=3 true?
Answers
Answer:
okay so, x would be 12
Step-by-step explanation:
( if you ever see p5 (or any other variable) then that’s means you gotta multiply, so maybe imagine it like px5, p5 would just be a easier way.)
1. x times 1 divided by 4 is 3, a simpler way to put it!
x would be 12 since 12x1 is 12
2. We divide 12 by 4 which gives us a total of 3
hope this helped!
The table shows the number of tickets sold and the profit made at the fundraiser
2 $18
4 $36
6 $54
8 $72
Which describes the relationship between the number of tickets sold and the profit
Each ticket sold yields $8 of profit
Each ticket sold yields $9 of profit
Each ticket sold yields $16 of profit
Each ticket sold yields $18 of profit
Answers
Answer:
first one is The table shows the number of tickets sold and the profit made at a fundraiser. Tickets Sold Profit
2 $18
4 $36
6 $54
8 $72
Which describes the relationship between the number of tickets sold and the profit?
Each ticket sold yields $8 of profit.
Each ticket sold yields $9 of profit
. Each ticket sold yields $16 of profit.
Each ticket sold yields $18 of profit.
Step-by-step explanation:
done
Answer:
b
Step-by-step explanation:
PLEASE HELP ME WITH THIS
Answers
Answer:
y<5
Step-by-step explanation:
dotted line so it's <. The original equation without inequality is y=5.
hope this helped.
In the figure shown above, all the comers form right angles. What is the area of the figure in square units?
A. 31 square units
B. 62 square units
C. 102 square units
D. 120 square
Answers
Answer:
D. 120 squared
Step-by-step explanation:
Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
Answers
Answer:
BC≈1.71
Step-by-step explanation:
The cosine of an angle is the adjacent side relative to that angle divided by the hypotenuse.
cos(70)=BC/5
BC=cos(70)*5≈1.71
Every morning Nora makes five gallons of her refreshing lemonade. Each order of lemonade is exactly one cup.
How many cups of lemonade can she sell each day before she runs out?
Answers
Answer:
80 cups
I had writtened 80 cups then thought i was wrong.
sorry.
Step-by-step explanation:
Answer:
Step-by-step explanation:
16 US cups are in 1 US gallon. So 16x5 =50
The price of an item has been reduced by 20%. The original price was $20. What is the price of the item now?
Answers
Answer:
what type of work is this?
HELP ASAP, LINKS AND ABSURD ANSWERS WILL BE REPORTED! I WILL MARK BRAINLIEST!!
Answers
Answer:
1⅕
Step-by-step explanation:
it shows a whole box filled so that means it's a whole
the next box only has one out of five filled so it's ⅕
1⅕
please help me with my maths prep...........
Answers
Answer:
uumm
Step-by-step explanation:
Use the data set and line plot below. How many feathers are
2
1
4
inches or shorter?
A data set titled
A line plot named
A.
8
B.
12
C.
15
D.
5
Answers
Answer:
The answer is B
I hope help you
Answer:
the correct answer for this equaction is B i think hope this helps!..
Step-by-step explanation:
if 5a + 9 = 5 + 3a, then 2a=
Answers
Step-by-step explanation:
5a+9=5+3a
2a=-4 is the required value
PLease tell me how to do it that will give you brainliest
Answers
Answer: Table H would be the correct answer;
The rule of a function is that for each x-value given there can't be more than 1 y-value
In Table F:
x = -13, then y = -2
x = -13, then y = 0
x = -13, then y = 5
x = -13, then y = 7
For the x-value -13, there are 4 different y-values, so it's not a function.
In Table G:
x = -6, then y = 3
x = -1, then y = -1
x = -1, then y = 5
x = 10, then y = -9
For the x-value -1, there are 2 different y-values, hence this isn't a function.
In Table H:
x = 1, then y = 4
x = 3, then y = 4
x = 7, then y = 4
x = 12, then y = 4
For each x-value, there is only 1 y-value, so this is a function.
In table J:
x = -9, then y = -7
x = -2, then y = -5
x = 0, then y = 0
x = 0, then y = 6
For the x-value 0, there are 2 different y-value therefore this isn't a function
Hope this helps!
PLEASE HELP ME I AM BEING TIMED, I WILL MARK BRAINLIEST FOR WHOEVER GETS THIS RIGHT, WITH AN EXTRA 10 POINTS.
Answers
Answer:
Yes table 1 is
not proportional for table 2
Step-by-step explanation:
6 for table 1
nothing for table 2
Find the surface area!
Thank you!!
Answers
Answer:
[tex]SA= 720 m^2[/tex]
Step-by-step explanation:
[tex]x=\sqrt{5^2+12^2}=13m[/tex]
[tex]AS=2*1/2*12+12*22+5*22+13*22[/tex]
[tex]= 60+264+110+13*22[/tex]
[tex]AS= 720m^2[/tex]
⋆┈┈｡ﾟ❃ུ۪ ❀ུ۪ ❁ུ۪ ❃ུ۪ ❀ུ۪ ﾟ｡┈┈⋆
hope it helps...
have a great day!!
Answer:
SA=720m^2
Step-by-step explanation:
hope it helps you ..
mops and buckets are sold in a shop. 9 mops cost £72. the ratio of the cost of a mop to the cost of a bucket is 4:7. work out the cost of 6 buckets
Answers
Answer: 52 pound because if it’s 4:7 7 add 4 = 11 divide that by 72 gets you 52