Answer:
The values of x and y are x = -3 and y = -2
Step-by-step explanation:
In the complex numbers if a + bi = c + di, then the real parts are equal and the imaginary parts are equal
a = cb = dLet us use this rule to solve the question
∵ -21 + 5yi = 7x - 10i
∴ The real parts are -21 and 7x
∴ The imaginary parts are 5y and -10
∵ The real parts are equal
∴ 7x = -21
→ Divide both sides by 7
∴ [tex]\frac{7x}{7}[/tex] = [tex]\frac{-21}{7}[/tex]
∴ x = -3
∵ The imaginary parts are equal
∴ 5y = -10
→ Divide both sides by 5
∴ [tex]\frac{5y}{5}[/tex] = [tex]\frac{-10}{5}[/tex]
∴ y = -2
∴ The values of x and y are x = -3 and y = -2
Okay I pick the answer parallels, was I correct?
Answer:
yes you were
Step-by-step explanation:
Answer:
Nope the answer should be perpendicular!
Step-by-step explanation:
Hope this helps!! Please consider marking brainliest! Have a good one!!
When exercising Alison Berns 120 cal every 15 minutes how many calories does Allison burn during 75 minutes
How is pH and hydronium concentration related?
Please help I am so confused
If the hydronium concentration increases, the pH decreases, causing the solution to
become more acidic. This happens when an acid is introduced. As H+ ions dissociate from the acid and bond with water, they form hydronium ions, thus increasing the hydronium concentration of the solution
what is the slope of this? HELP PLS
Laura paid 9.35 for 3.4 pounds of ground beef. How much does one pound of ground beef cost?
Answer:
One pound of ground beef costs $2.75.
Step-by-step explanation:
To solve this you want to divide both numbers by 3.4 this is because you want to find out much the ground beef costs per 1 pound and 3.4 / 3.4 = 1. Additionally, what you do to one side you must do to the other!
3.4 / 3.4 = 1
9.35 / 3.4 = 2.75
One pound of ground beef costs $2.75.
HURRY!!!! PLS NEED AWMSER IN CLASS I CAN PICK THEM DOWN BELOW
Answer:
9. 7/2
10. -6
Step-by-step explanation:
I need help with graphing this.
Here, I graphed it for you:
The Lopez Family meets with a financial planner who advises them to save 15% of their income
per month for college savings for their children. They earn $8,540 per month. How much will
the Lopez family save each month for future college expenses?
Answer:
$1281
Step-by-step explanation:
[tex]8540 \times \frac{15}{100} \\ 1281 [/tex]
Find x, y, and z such that x³+y³+z³=k, for each k from 1 to 100. there is nothing to do
Answer:
Step-by-step explanation: There are no solutions whenever k=4,5mod9.
This holds since it is not difficult to verify that for every integer n, we have n3=0,±1mod9.
Up till this year, there were just two values for k in the range 1..100 for which it was not known if there were a solution. These values are k=33,42.
Both values are now known to have solutions. See 42 is the answer to the question “
ANY MATH EXPERTS PLS HELP RN I GOT 30 MIN LEFT I'll MARK BRAINLIEST TO WHO ANSWER'S FIRST
Answer:
y = -3x + 7
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASAlgebra I
Slope Formula: [tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Slope-Intercept Form: y = mx + b
m - slope b - y-interceptStep-by-step explanation:
Step 1: Define
Find points from graph.
Point (1, 4)
y-intercept (0, 7)
Step 2: Find slope m
Substitute: [tex]m=\frac{7-4}{0-1}[/tex]Subtract: [tex]m=\frac{3}{-1}[/tex]Divide: [tex]m=-3[/tex]Step 3: Write linear function
y = -3x + 7
What is the y intercept for the equation:
y = -8x^2 + 3x - 7
Answer:
The y intercept for the equation is (0,-7)
simplify 2(x + 5) − 3(x − 2)
Answer:
-x + 16
Step-by-step explanation:
We need to use the distributive property to solve this!
We can isolate this into 2 parts that we will need to combine later on, but isolating them will make it less confusing to simplify:
2(x+5) is one part, and the second is -3(x-2)
The first part simplifies to 2x + 10, and the second simplifies to -3x + 6. Now we need to combine the 2 values.
2x + 10 - 3x + 6
Combine like terms
-x + 16 is your answer!
Answer:
Step-by-step explanation:
2x+10 - 3x -5 and for the fun of it the answer will be..
you will subtract 10 and 5 and that gives you 5
then you do -3+2 = -1x
5 divided by -1 gives you
X= -5
The cross-country coach later determines that the length of the football field is 120 yards. All students must run five laps. Using your answer from Part A, determine the actual number of yards that each athlete must run in the tryouts. In order to make the team, students must complete the laps in 6 minutes. How quickly must they run each lap? The width of the football field is 70 yards.
Answer:
25.2
Step-by-step explanation:
Given h(x) = 4x2 + 3x – 8, what is the value of h(–9) ?
Answer:
289
Step-by-step explanation:
h(x)= h(-9)
4(-9)^2+3(-9)-8
22, 36 27, 54 32, 72 x inercept
Give the digits in the tens place and the hundredths place. "91.48"
Answer:
Step-by-step explanation
The digit in the tenths place is 4 and the digit in the hundreds place is 1
Answer:48 Hundredths i think
Step-by-step explanation:
The equation of the graphed line is 2x - y = -6.
What is the x-intercept of the graph?
-3
-2 2
6
Step-by-step explanation: Since the line crosses the y-axis at 6, the y-intercept is 6.
Find the unit rate. Round to the nearest hundredth, if necessary.
$3.99 for 19 lb
The unit rate is $
Answer:
0.21
Step-by-step explanation:
PLEASE WILL GIVE BRAINLIEST!!
Answer:
10.5
Step-by-step explanation:
because 10.5x2=21. and 45+13+21=79, 100-79= 21.
A skirt originally cost $10. How much will it cost if you sell it in Amazon with 25% mark-up price
Answer:
$20.40
Step-by-step explanation:
20% off means that the new price of the skirt will be 80% of the original price:
$30(100% – 20%) = $30(80%)
Converting the percent to a decimal gives:
$30(0.8) = $24.00
There is an additional 15% off the sale price of $24.00, so the final price is 85% of the sale price:
$24(100% – 15%) = $24(85%)
Again converting the percent to a decimal gives:
$24(0.85) = $20.40
please help me!!! I NEED HELP!!!! IM SO CONFUSED
Pretty sure is 5 bud.
Late for the party but happy to help!!
What is the slip of the line shown below ?
A - 11/4
B- 4/11
C- -4/11
D- 11/4
solve for x transversal
just answer the question dont play with me rn
Answer:
B
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
You are choosing between two texting plans. One plan has a monthly fee of $15 with a charge of $0.05 per text. The other plan has a monthly fee of $5 with $0.07 per text. For how many text messages will the costs for the two plans be the same?
Answer: 500 messages will the costs for the two plans be the same.
Step-by-step explanation:
Let x= Number of text messages .
Given: One plan has a monthly fee of $15 with a charge of $0.05 per text.
i.e. Total cost of plan = 15+0.05x
The other plan has a monthly fee of $5 with $0.07 per text.
i.e. Total cost of plan = 5+0.07x
As per given ,
[tex]5+0.07x=15+0.05x\\\\\Rightarrow\ 0.07x-0.05x=15-5\\\\\Rightarrow\ 0.02x=10\\\\\Rightarrow\ x=\dfrac{10}{0.02}\\\\\Rightarrow\ x= \dfrac{1000}{2}\\\\\Rightarrow\ x=500[/tex]
Hence, 500 messages will the costs for the two plans be the same.
pretty help please :)
Answer:
3
Step-by-step explanation:
we want to get (n) alone
3n+17=26
subtract 17 from each side
3n=9
divide each side by 3
n=3
3
Answer:
A
Step-by-step explanation:
3n+17=26 Inverse operation of addition is subtraction so subtract 17 from both sides of the equation
3n-17+17=26-17
3n=19 Inverse operation of multiplication is division, so divide 3 from both sides of the equation so you can get n alone
3n/3=9/3
n=3
Inverse operation means the opposite operation
Nick can type 30 words a minute.
How many words can be typed in 9.5 minutes?
Answer:
285 words
Step-by-step explanation:
What is the value of the digit 6? Correct answer will be marked brainliest.
Answer:
the value is ones.
Step-by-step explanation:
6=hundred 5= tens and the 6 u are talking about is = ones
Please help ASAP Thank you
Answer:
3.0 x 10^1
Step-by-step explanation:
Step 1) 4,500,000,000 / 149,600,000 = about 30
Step 2) 3.0 x 10^1 = 30
The graph of the absolute value parent function is vertically stretched by a factor of three, then shifted two units left and five units down.
Answer: g(x) = 3*Ix + 2I - 5
Step-by-step explanation:
First, let's define the transformations in a general way.
A vertical stretch of a scale factor A, is written as:
g(x) = A*f(x)
A vertical shift of A units is written as:
g(x) = f(x) + A
if A is positive, the shift is up, if A is negative, the shift is down.
A horizontal shift of A units is written as:
g(x) = f(x - A)
If A is positive, the shift is to the right.
If A is negative, the shift is to the left.
Then we start with the absoulte value parent function f(x) = IxI
"The graph of the absolute value parent function is vertically stretched by a factor of three"
We start with:
g(x) = 3*f(x)
"then shifted two units left"
g(x) = 3*f(x - (-2))
"and five units down."
g(x) = 3*f(x + 2) - 5.
and knowing that f(x) = IxI, we have:
g(x) = 3*Ix + 2I - 5
