Answer:
B. x=1+2i or x=1-2i.
Step-by-step explanation:
The equation is given as;
x²-2x+5=0
complete the square method to find value of x as;
x²-2x = -5
x²-2x + 1 = -5 + 1
x²-2x +1 =-4
( x-1 )² = -4
x-1 = ±√-4 ---------where √-1 = i
x-1 =± 2i
So;
x-1 = + 2i
x= 1+2i
or
x= 1-2i
x= 1-2i
Plsss help, will reward brainliest!!! Thank you.
Look at picture^^^
Answer:
-2b and -0.9b and b/12
Step-by-step explanation:
Sube purchased a new car priced at $24,050 without the tax. If the tax rate is 6%, how much tax did she pay?
Answer:
25493
Step-by-step explanation:
Mark has $146 in his savings account. He withdraws $41, deposits $98, and then withdraws $64. Find the balance of his account.
What's the answer?
Answer:
$139
Step-by-step explanation:
subtract 41 from 146
=105
add 98
=203
subtract 64
=139
Write a two-column proof to verify each conjecture: If -1/3n = 12, then n = -36. This is for geometry btw. Any help would be much appreciated, thanks.
Answer:
Step-by-step explanation:
statement reasoning
n = -36 given
-1/3 x -36 = 12 multiplcation property of equality
12 = 12 reflexive property
Given the expression 2m - 7x + 6 + 3x - 4 what are the CONSTANTS?
Answer:
The constants are 6 and 4
Step-by-step explanation:
They don’t have variables next to them
Use the calculator to evaluate the function y = 1 *2 - 2 for the given values of x.
x= 4, y =
x=6, y=
Answer:
when x= -4, y= 2
when x= 6, y =7
Step-by-step explanation:
We have the x values, so we can plug them in and solve. for the first problem, it becomes y =1/4 (-4)^2 -2
first we do the exponent
y= 1/4 (16) - 2
Then the multiplication
y= 4-2
then subtraction
y=2
For the second problem, it becomes y= 1/4 (6)^2 -2 We follow the same steps
y = 1/4 (36) - 2
y= 9-2
y= 7
The function y = 1 *2 - 2 for the given values of x are
when x= -4, y= 2
when x= 6, y =7
We have the x values, so we can plug them in and solve. for the first problem, it becomes y =1/4 (-4)² -2
First we do the exponent
y= 1/4 (16) - 2
Then the multiplication
y= 4 - 2
then subtraction
y = 2
For the second problem, it becomes y= 1/4 (6)² -2 We follow the same steps
y = 1/4 (36) - 2
y = 9 - 2
y = 7
Learn more about function here:
https://brainly.com/question/33062106
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Brett, who is 5 ft tall, is standing next to a flag pole. Brett's shadow is 8 feet long. The flag
pole's shadow is 24 feet long. How tall is the flag pole?
Answer:
15 is the answer
Answer:
15
Step-by-step explanation:
Multiply the length of the flagpole's shadow by your height, and then divide the resulting number by the length of your shadow.
(24x5)/8
120/8
15
please mark as brainliest!!!
ASAP NEED HELP!!!!!!!!!
B=R/H Solve for H
Answer:
h = r/b
Step-by-step explanation:
Answer:
H = R BStep-by-step explanation:
H = R
B
Incentive programs offered by 4 different retail stores are listed below.
Store 1: 25% off your total purchase
Store 2: $10.00 off every $50.00 you spend
Store 3: Mail in rebate of $40.00 off your total purchase
Store 4: 10% off your total purchase
Which store offers the best deal if you are purchasing $145.00 in merchandise?
Answer:
Store three with $105.00
Step-by-step explanation:
Avery and Carmen both have summer jobs Avery gets paid $360 every four weeks, and gets paid $480 every six weeks summer break lasts a total of 12 weeks who earn more money during summer break every earns dollars per week Carmen earns dollars per week
Answer:
Avery earns $1,080 during summer
Avery weekly earnings = $1,080 / 12
= $90
Carmen earns $960 during summer
Carmen weekly earnings = $960/12
= $80
Carmen earns more money during summer break
Step-by-step explanation:
Avery payment = $360 every four weeks
Carmen payment = $480 every six weeks
summer break lasts a total of 12 weeks
Avery pay during summer = Total summer break weeks / 4 weeks × payment per 4 weeks
= 12 / 4 × $360
= 3 × $360
= $1,080
Carmen pay during summer = Total summer break weeks / 6 weeks × payment per 6 weeks
= 12 / 6 × $480
= 2 × $480
= $960
Avery earns $1,080 during summer
Avery weekly earnings = $1,080 / 12
= $90
Carmen earns $960 during summer
Carmen weekly earnings = $960/12
= $80
Carmen earns more money during summer break
Answer:
Step-by-step explanation:
Avery earns $1080 in 12 weeks
Carmen earns $960 in 12 weeks
solve for x in terms of y: 5y = 3x + 2
Answer:
d. x = 1/3 (5y - 2)
Step-by-step explanation:
5y = 3x + 2 (subtract 5y and 3x on both sides)
-3x = -5y + 2 (divide by -3 or multiply by 1/3)
x = 1/3 (5y - 2)
If 120 million roses were sold on Valentine's Day, and 75% of the roses were red, how
many red roses were sold on Valentine's Day?
Answer:
Step-by-step explanation:
120 million * .75
90 million roses were sold on valentines day
Answer:
there were 90 roses sold on valentines day
Step-by-step explanation:
part=%*whole
p=75%*120
p=90
please help me and show all work 30 points
5x-(3x-6)=18
2(3x-4)=10
2x+7=5x+16
Answer:
5x-3x-6=18
2x=18+6
2x=24
x=24÷2
x=12
I need two answers pls
What is an eqination of the line that passes through the point (-3, -7) and parallel to the line 3x-y=5
I need the y=mx+b
Answer:
y = 3x + 2
Step-by-step explanation:
First you need to change the way the equation is said into a easier form:
y = 3x - 5
Since the line is parallel, you can use the same slope of 3:
y = 3x + b
Now you plug in the coordinates into the equation and solve for b:
-7 = 3 ( -3) + b
-7 = - 9 + b
-7 + 9 = b
2 = b
Now plig this into the equation and you have the answer
y = 3x + 2
y=(-6)3x-8=
what is the answer
Answer:
8
Step-by-step explanation:
Which of the following rules could represent the function shown in the table?
f(x) = -2x
f(x) = 2x-1
f(x) = 2x+1
Answer: f(x) = 2x+1
Step-by-step explanation: Substitute the variable with the “x” values in the chart to check your answers.
1. f(x) = 2x+1
Add in the “x” value
f(x) = 2x(-1) or 2 multiplied by -1
f(x) = -2 + 1
If the answer is equal to your “y” value , it can represent the function.
In the state of New Mexico, 85% of the land is above 4,000 feet in elevation.
Which fraction is equivalent to 85%?
A) 4/5
B) 5/8
C) 17/20
D) 1/85
Answer:
85 % = 17/20
Step-by-step explanation:
It is given that,
85% of the land is above 4,000 feet in elevation.
We need to write a fraction that is equivalent to 85%.
We know that, percent means dividing by 100 i.e.
[tex]85\%=\dfrac{85}{100}[/tex]
We can write 85 as 17×5 and 100 as 20×5
So,
[tex]\dfrac{85}{100}=\dfrac{17\times 5}{20\times 5}[/tex]
5 will cancel out from numerator and the denominator
[tex]\dfrac{85}{100}=\dfrac{17}{20}[/tex]
Hence, the correct option is (c).
Royce is taking violin lessons. The instructor charges an initial fee and an hourly fee. The amount Royce pays based on the length of his lesson is shown in the graph below. What is the instructor’s hourly fee?
$15 per hour
$22 per hour
$26 per hour
$37 per hour
Answer: A just got it on edge
Which of these descriptions matches the graph
Answer:
oop
Step-by-step explanation:
oop
Answer:
No photo was given.
Step-by-step explanation:
ILL GIVE BRAINLIEST 2 THE 1ST PERSON WHO ANSWERS
Answer:
b
Step-by-step explanation:
Given the relation A = {(5,2), (7,4), (9,10), (x, 5)}. Which of the following values for x will make relation A a function?
9
4
7
Write the Equation in standard form The line which passes through (1,-4) and (-1, 6)
4 movie tickets cost $48. At this rate, what is the cost of 11 movie tickets?
Answer:
$132
Step-by-step explanation:
48÷4=12 so 12 times 11 equals 132
Max has 3 textbooks and 2
notebooks in his backpack. The total
weight of his backpack and its
content is 10,5 pounds. Each
textbook weighs 2.5 pounds. Each
notebook weighs 0.25 pound. What
is the weight of Max's empty
backpack?
Answer:
2 pounds
Step-by-step explanation:
Arnold puts $580 in a savings the account pays 3% simple interest. how much interest will he earn in 5 years
Answer:Arnold earns $87 of interest in 5 years.
Step-by-step explanation:
24/root 3 multiply root 3/root 3
Enter the improper fraction as a mixed number. 5\2
Answer:2 1/2
Step-by-step explanation:
Please help the picture is above. I’ll mark as brainliest.
Answer:
s= 2000n + 55000
comparing with y= mx +c
The slope of given line is 2000 which represents that the salary of camden increases at the rate of 2000 per year .
Step-by-step explanation:
-0.8x+40-8x-35 need help asap
Answer:
-8.8x + 5
Step-by-step explanation:
Equation:
-0.8x + 40 - 8x - 35
-0.8x -8x + 5
-8.8x + 5
*This answer might be from a misunderstanding*
Answer:
-8.8x + 5
Step-by-step explanation:
See attached picture!!
Hope this helps!!