simplify 3+5i/ 6-i!!! Pls help I’m taking a test!!
Answer:
3 - 0.166666667 i
Step-by-step explanation:
I think this is the answer
solve b
3b / 7-1 = 5
Answer:
b= 2 over 7
Step-by-step explanation:
exact form b= 2 over 7
decimal form b= 0.285714
Make a conjecture: What happens to
M AJK, m_BKJ, and m_CLJ as you
change the line of reflection?
The angles change.
The angles do not change.
The angles are always right
angles.
Answer:
the angles change
Step-by-step explanation:
Write an equation in slope-intercept form of the line with slope −1 that contains the point (5,−2).
Answer:
y=-x+3
Step-by-step explanation:
[tex]y-y_{1}=m(x-x_{1})\\ y-(-2)=-(x-5)\\y+2=-(x-5)\\y+2=-x+5\\y+2-2=-x+5-2\\y=-x+3[/tex]
A company that makes hair-care products had 5000 people try a new shampoo. Of the 5000 people, 40 had a mild allergic reaction. What percent of the people had a mild allergic reaction?
Answer:
0.8% of people had a mild allergic reaction
Step-by-step explanation:
First, divide the number of people who had a mild reaction to the total amount of people.
0.008
Second, multiply by 100%.
0.008 * 100% = 0.8%
Best of Luck!
Answer:
the answer is 125 hope this helped
Step-by-step explanation:
For which inequality would x= 2.7 not be a solution?
O X+ 14.9
O X-4<0
O 3x + 6 2 10
O 6- X21
Answer:
1st one
Step-by-step explanation:
The inequality that is not correct for x = 2.7 will be x + < 9. The correct option is A.
What is inequality?When two expressions are connected by a sign like "not equal to," "greater than," or "less than," it is said to be inequitable. The inequality shows the greater than and less than relationship between variables and the numbers.
Given that the value of x is 2.7. Check all the options for x = 2.7.
Option A:-
x + 14 < 9
x < 9 - 14
x < -5 False
Option B:-
x - 4 < 0
x < 4 True
Option C:-
3x + 6 ≥ 10
3x ≥ 4
x ≥ 4/3 True
Option D:-
6 - x ≥ 1
x ≤ 5 True
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10.6 + 6x2 - 4
Factor the negative greatest common factor
Anthony borrows $6.50 from a friend to pay for a sandwich and a drink at lunch. Then he borrows $3.75 from his sister to pay for a library fine. Choose an equation to express Anthony’s total debt that day.
Please answer!!!
What is the instantaneous slope of y = eight over x at x = -3?
A. -8/3
B. 8/3
C. -8/9
D. 8/9
Answer:
C
Step-by-step explanation:
[tex]\frac{d}{dx} (8x^-1)\\-8x^{-2}\\[/tex]
using x = -3
[tex]-8(-3)^{-2}\\\frac{-8}{9}[/tex]
The instantaneous slope of the function y = 8/x at x = -3 is -8/9.
Option C is the correct answer.
We have,
To find the instantaneous slope of the function y = 8/x at x = -3, we can differentiate the function with respect to x.
Differentiating y = 8/x using the power rule, we get:
dy/dx = -8/x²
Now, we can evaluate the instantaneous slope at x = -3 by substituting the value into the derivative:
dy/dx = -8/(-3)²
= -8/9
Therefore,
The instantaneous slope of the function y = 8/x at x = -3 is -8/9.
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Write the number in standard form: 9.82 × 10 ³
Answer:
that would be 9820
Step-by-step explanation: 9.82, count 3 to the right beginning at the decimal and boom
A cookie recipe called for 3 3.5 cups of sugar for every 246
cups
of
flour. If you made a batch of cookies using 4 cup of flour, how many
cups
of sugar would you need?
O 54/35 cups of sugar for 4 cups of flour
O 1 19/35 cups of sugar for 4 cups of flour
O 6 6/35 cups of sugar for 4 cups of flour
O 5 2/5 cups of sugar for 4 cups of flour
Answer:
D=5 2/5 cups of sugar for 4 cups of flour
Step-by-step explanation:
I cross multiplied and man was that a lot of fractions
A girl that is 5ft tall casts a shadow 4ft long. At the same time, a tree casts a shadow 24ft long. How tall is the tree? *
Answer:
30 ft
Step-by-step explanation:
5/8 - 5/24
I am doing some homework my brain isnt working right now can someone help me out?
Answer:
5/12
Step-by-step explanation:
i just looked it up...
====================================================
Explanation:
Multiply top and bottom of 5/8 by 3 to get 15/24
This means 5/8-5/24 is the same as 15/24-5/24
The denominators are the same, so we can subtract the numerators to have them placed over the common denominator
15/24 - 5/24 = (15-5)/24 = 10/24
Then we reduce by dividing each part of the fraction by the GCF 2
10/2 = 5
24/2 = 12
Meaning that 10/24 = 5/12
Note how multiplying top and bottom of 5/12 by 2 leads to 10/24 again.
So overall,
5/8 - 5/24 = 5/12
Y-5=1/2(x+2) what is the point and slope
Answer:
see explanation
Step-by-step explanation:
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
y - 5 = [tex]\frac{1}{2}[/tex](x + 2) ← in point- slope form
with slope m = [tex]\frac{1}{2}[/tex] and (a, b) = (- 2, 5 ) ← point on line
The earth's crust is:
1.broken into several plates
2.floating on top of the mantle
3.made of granite and basalt
4.all of the above
Answer:
Well ummmmm 1
Step-by-step explanation:
Answer:
All of the above because we know that the earths crust is above the mantle AND that there are several plates, and I read in an article that the earth is made of basalt and granite
I also got this right on a test in odsseyware:-)
Step-by-step explanation:
The function f(t) = |98.6-x|, represents a persons's variance from normal body temperature, where x represents a person's current body temperature in degrees Fahrenheit. Medical professionals say healthy individuals should have a variance of no more than 0.5 degrees Fahrenheit.
Answer:
98.1°F ≤ x ≤ 99.1°F
Step-by-step explanation:
Given the function:
f(x) = |98.6 - x|
Variance = 0.5
98.6°F - x = ± 0.5
Lower bound :
98.6 - 0.5 ≤ x
98.1 ≤ x
Upper bound :
x ≤ 98.6 + 0.5
x ≤ 99.1
Hence,
98.1°F ≤ x ≤ 99.1°F
Solve for x please help
Answer:180
Step-by-step explanation: Because it a 80 degree angle
help is this a function
Answer:
Yes. But I may be wrong.
Step-by-step explanation:
Average movie in the Uruled States gerveral . Cost tickets in Japan plus two tickets in Switzerlandtickets in Switzerland plus two tickets in Japan would cost \$/5.27 . How much does an average movie ticket cost in each of these countries in Japan the average costis Switzerland the average cost is $
Answer:
The average cost of a movie ticket in Japan is $17.86 and the average cost of a movie ticket in Switzerland is $13.75
Step-by-step explanation:
The question seems to be incomplete. Here is a similar question and the solution:
Average movie prices in the United States are, in general, lower than in other countries. It would cost $81.08 to buy three tickets in Japan plus two tickets in Switzerland. Three tickets in Switzerland plus two tickets in Japan would cost $76.97. How much does an average movie ticket cost in each of these countries?
Step-by-step explanation:
Let the cost of tickets in Japan be $x and the cost of tickets in Switzerland be $y.
From the question,
It would cost $81.08 to buy three tickets in Japan plus two tickets in Switzerland. That is
3x + 2y = 81.08 ...... (1)
Also from the question,
Three tickets in Switzerland plus two tickets in Japan would cost $76.97. That is
2x + 3y = 76.97 ...... (2)
Multiply equation (1) by 2, so that we get
6x + 4y = 162.16 ...... (3)
and multiply equation (2) by 3, so that we get
6x + 9y = 230.91 ...... (4)
Now, Subtract equation (3) from equation (4), we get
5y = 68.75
y = 68.75/5
y = 13.75
Put the value of y into equation (1) to determine x
3x + 2y = 81.08
3x + 2(13.75) = 81.08
3x + 27.5 = 81.08
3x = 81.08 - 27.5
3x = 53.58
x = 53.58/3
x = 17.86
∴ x = 17.86 and y =13.75
Hence, the average cost of a movie ticket in Japan is $17.86 and the average cost of a movie ticket in Switzerland is $13.75.
Select the three expressions that are equivalent to 9^4
Choose 3 answers
A. 9•4
B.9•9•9•9
C.9^8/9^2
D.(9^2•9^2)^1
E.(9^10/9^8)^2
Answer:
B and D
Step-by-step explanation:
the answer is B and D
The equivalent expression are [tex]9^4[/tex] = 9 x 9 x 9 x 9, 9² x 9² and
[tex](9^{10}/9^8)^2[/tex]
What is Expression?Mathematical statements are called expressions if they have at least two terms that are related by an operator and contain either numbers, variables, or both. Addition, subtraction, multiplication, and division are all possible mathematical operations.
A mathematical expression is a phrase that has a minimum of two numbers or variables and at least one mathematical operation.
Given:
[tex]9^4[/tex]
So, if we expand the above expression using exponents and power
[tex]9^4[/tex] = 9 x 9 x 9 x 9
and, 9² x 9² = [tex]9^{2+2[/tex] = [tex]9^4[/tex]
Also, [tex](9^{10}/9^8)^2[/tex]
= (9²)²
= [tex]9^4[/tex]
Hence, the equivalent expression are [tex]9^4[/tex] = 9 x 9 x 9 x 9, 9² x 9² and
[tex](9^{10}/9^8)^2[/tex]
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Which graph represents the solution set of the system of inequalities?
−3x+y>1
{
y≥x−1
Compare the ratios 4:5 and 16:20.
I need this quick
Anyone know how to do this???
Answer:
6
Step-by-step explanation:
Because 1 is either on top or on the bottom and 6 would be on the opposite side of 1 meanwhile the other numbers are on the sides
The price of a sweater was reduced from $20-$12 by the percentage was the price of the sweater reduced ?
is (8,-44) a solution to y=-7x+6
I Want a board of peoples Nick names Give me Max 10 Min 5
Answer:
ZZ Top
Step-by-step explanation:
I don't know why, but my brother is evil and calls me that. Don't ask.
Answer:
nike,jordan,fila,gucci,louey
Step-by-step explanation:
what is an expression equivalent to m^238/m^-79 in the form m^v, where v is an integer?
Answer:
[tex]m^{317}[/tex]
Step-by-step explanation:
In indices, the division postulate is true:
[tex]\frac{a^m}{a^n} = a^{m-n}[/tex]
Apply this to the question:
[tex]\frac{m^{238}}{m^{-79}} \\= m^{238-(-79)}\\= m ^{238+79}\\= m^{317}[/tex]
Hence the expression expressed in the form [tex]m^v \ is \ m^{317}[/tex]
Add the polynomials 5x - 2 + y and -3y + 5x + 2
help me it's due in less than an hour
Answer:
y = 5 and 1/4 + 1/5x, I think
Step-by-step explanation:
hope this helps
(14x – 13)
(4x + 13)
(6x + 2)
Answer:
x = 7.416666667
Step-by-step explanation:
Set everything equal to 180 (the total # of degrees in a triangle)
180 = 14x-13 + 4x+13 + 6x+2
Combine the variables
180 = 24x - 13 + 13 + 2
Do the math
180 = 24x +2
178 = 24x
x = 7.416666667
A variable is, to put it simply, a quantity that can be altered and is not fixed. If the variables be (14x – 13), (4x + 13) and (6x + 2) then the value of x exists 7.416666667.
What is meant by variables?An unknown numerical value in an equation or algebraic expression is represented by a symbol (typically a letter) in algebra. A variable is, to put it simply, a quantity that can be altered and is not fixed.
Let the variables be (14x – 13), (4x + 13) and (6x + 2).
Set all values to 180 (the sum of the triangle's degrees).
180 = (14x - 13) + (4x + 13) + (6x + 2)
180 = 14x - 13 + 4x + 13 + 6x + 2
simplifying the above equation, we get
180 = 24x - 13 + 13 + 2
180 = 24x +2
178 = 24x
Divide both sides of the equation by 24, we get
178/24 = 24x/24
x = 7.416666667
Therefore, the value of x = 7.416666667.
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