Answer:
5y + 2x + 15
Step-by-step explanation:
x+y+x+y+3(y + 5)
Open the bracket.
x + y + x + y + 3y + 15
Bring the like terms together and simplify them.
3y + y + y + x + x + 15
= 5y + 2x + 15
Prove that there is no complex number such that | z | −z = i
The proof is shown below:
What is complex number?A complexb number is the of a real number and an imaginary number. A complex number is of the form a + ib and is usually represented by z. Here both a and b are real numbers. The value 'a' is called the real part which is denoted by Re(z), and 'b' is called the imaginary part Im(z). Also, ib is called an imaginary number.
The alphabet i is referred to as the iota and is helpful to represent the imaginary part of the complex number. Further the iota(i) is very helpful to find the square root of negative numbers.
We know
z= a +ib
and |z|= √a² + b²
So, |z|-z =i
√a² + b² - a- ib=i
Now, comparing the coefficients
b=-1
√a² + b² - a = 0
√a² + (-1)² - a=0
√a² + 1 - a = 0
√a² + 1 = a
a² + 1 = a²
1= 0
Which is not possible.
Hence, there is no complex number such that | z | −z = i
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Which point is closest to the x axis. (4, 8) (2, 11) (8, 7) (3, 13)
Answer:
Answer: 8,7
Step-by-step explanation:
sorry I'm 1 year late :((
Question 7 using substitution if you don’t mind. Help please.
y= -2 and x= 1 according to the solution in the picture
Answer:
x = 1
y = -2
Step-by-step explanation:
3x - 2y = 7
4x + y = 2 then y = 2 - 4x
substitute for y:
3x - 2(2 - 4x) = 7
reduce:
3x - 4 + 8x = 7
11x = 11
x = 1
y = -2
EXAMPLE How many inches are in 6 miles? (1 mile=5280 feet, 1 foot=12 inches)
What is the input value for which g(x) = 3 khan academy
Answer:
x = 9
Step-by-step explanation:
If g(x) = 3, that means that the output is three.
Outputs are y values.
Look at the graph. When y=3, the x = 9.
So the input value for which g(x) = 3 (aka that gives the output y = 3) is x = 9
Divide the given polynomial by the given monomial.
Answer:
Here is the answer. Solved
Answer all of these please
1.The product of a number and seven more than the number
2.The product of a number and seven less than the number
3.Eight less than twice a number is fourteen.
4.One less than three times a number is seven.
5. Four more than five times a number is two less than the number.
6.Ten less than a number is three more than six times the number.
7.Twice the sum of a number and 3 is 20.
Answer: 3. 22-8 / 4. 2x3.5 / 5.
Step-by-step explanation:
Step-by-step explanation:
1. 1×8=8
2. 9×2=18
3. 8+14=22÷2=11
4. 2.7
5. -1.5
6. closest -2.5
7.÷2=10-3=7
The price of a car was Rs.1,50,000 last year. It has decreased by 10% this
year. The new price is
Answer:
$135000
Step-by-step explanation:
150000*(1-0.1)=150000*0.9=135000
What is the domain of the function y = log(x + 3)?
O
(-00,00) (-00,00)
(-00, -3)
(0,co)
(-3,0)
DONE
Answer:
the domain for the function y=log(x+3) is (-3,oo).
The domain of the function y = log(x + 3) is (−3, +∞), or in interval notation, (−3, ∞).
The domain of the function y = log(x + 3) is the set of all possible values that x can take without making the expression undefined.
For the logarithmic function y = log(x), the argument of the logarithm (x in this case) must be greater than zero, otherwise the result is undefined.
So, to find the domain of y = log(x + 3), we need to solve the inequality x + 3 > 0, which gives x > -3.
Thus, the function y = log(x + 3) is (−3, +∞), or in interval notation, (−3, ∞) is the answer.
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5th grade math. correct answer will be marked brainliest, answer the question please!
I put the work and answer in the picture attached!
For some reason Brainly thought I had swear words in here so I took a picture of my answer instead. :)
In a half-time skills contest Addison received $5 for each free throw she made and $10 for each 3- point shot. She earned a total of $140. The amount of free throws she made was four less than twice the amount of three pointers. How many of each did she make?
Answer:
o.o
Step-by-step explanation:
What is (4 x 100) + 20.
Answer:
420 is the correct answer
Answer:
420
Step-by-step explanation:
Keith paid 8.44 each for 5 lizard toys and got 5 cages for 8.45 each with 5 20 bills . How much change did Keith recive
Answer:
19.51
Step-by-step explanation:
Answer:
15.55
Step-by-step explanation:
First, find the total cost of the items
8.44 * 5= 42.20
8.45 * 5= 42.25
42.20 + 42.25= 84.45
Then the amount of money given
20 * 5= 100
Last, subtract the cost from the amount given
100 - 84.45 =15.55
What property of equality is illustrated by the following statement?
If 3 x = y and y = 4x - 5 then 3x = 4x - 5.
A Distributive property
B Reflexive property
C Transitive property
D Symmetric property
Answer:
A. Distributive Property
Step-by-step explanation:
Both 3x and 4x-5 equal y therfore both expressions equal each other.
I really need help with this!
Answer:
3(2 + 9)
Step-by-step explanation:
The numbers 6 and 27 can be written as factored as
6 = 2 * 3
27 = 3 * 3 * 3
The both have one factor of 3 in common.
The greatest common factor (the GCF) of 6 and 27 is 3.
Now we factor out 3. To do that, we divide both 6 and 27 by 3.
6/3 = 2
27/3 = 9
We see that
6 + 27 = 3 * 2 + 3 * 9,
and the common factor of 3 is in both multiplications.
Finally, we factor out the 3, leaving the results of the divisions inside the parentheses.
6 + 27 = 3 * 2 + 3 * 9 = 3(2 + 9)
Answer: 3(2 + 9)
HELP PLZ DUE IN 10 MIN PLZ I WILL GIVE 200 point if right PLZ
Answer:
(3,1)
Step-by-step explanation:
Answer:
3,1
Step-by-step explanation:
Prove that if a^x=b^y=ab^xy then x+y=1
Answer:
Below.
Step-by-step explanation:
Prove that if
a^x = b^y = (ab)^(xy) then x + y = 1.
From the second equation:
y = 1 - x
So we have:
a^x = b^y = b^(1-x)
Taking logs:
x ln a = (1-x)ln b
x ln a + x ln b = ln b
x = ln b / ( ln a + ln b)
x = ln b / ln ab.
This is true if x + y = 1.
Now consider b^y = (ab)^(xy):
b^(1 - x) = (ab)^(x(1- x)
ln b - x ln b = x(1 - x)ln ab
ln b - x ln b = x ln ab - x^2 ln ab
Now we substitute for x = ln b / ln ab in this expression.
If left side = right side then we have proved this identity and therefore the original one.
Left side = ln b - (ln b / ln ab) * ln b = ln b - (ln b)^2 / ln ab.
Right side = (ln b / ln ab) * ln ab - [(ln b)^2 / (ln ab)^2] * ln ab
= ln b - (ln b)^2 / ln ab.
Left side = right side so this identity is true, and so the original one
( x + y = 1) is true also.
Ahh help!!
The paper water cups near the water jug are cones of radius 2 inches and height 4 inches if a water bottle of cylindrical shape has a radius of 2 inches and a height of 8 inches how many full paper cups of water are required to fill one water bottle?
Answer:
I think its 678.24
Hope it helps!
A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 402 gram setting. It is believed that the machine is underfilling the bags. A 23 bag sample had a mean of 400 grams with a variance of 900. A level of significance of 0.025 will be used. Assume the population distribution is approximately normal. Determine the decision rule for rejecting the null hypothesis. Round your answer to three decimal places.
Answer:
Kindly check explanation
Step-by-step explanation:
H0 : μ ≥ 402
H1 : μ < 402
Test statistic :
n = 23
Sample Mean, x = 400
Variance = 900
σ = sqrt(900) = 30
Test statistic = (x - μ) ÷ σ/sqrt(n)
Test statistic = (400 - 402) ÷ 30/sqrt(23)
Test statistic = - 2 / 6.2554324
Test statistic = - 0.3197221
Test statistic = - 0.3197
Critical value :
Using the Tcritical value calculator
Tcrit; α = 0.025, df = n - 1 = 23 - 1 = 22
Tcritical = 2.074
Reject Null : if Test statistic ≤ Tcritical (left tail test)
Since ;
Test statistic ≤ Tcritical ; We reject the Null
Ms. Wolf goes shopping at Target and spends $38.75. Sales tax is 8%.
Enter the answer for question B: How much does she pay in total?
Answer:
you have to do the sales tax, times the price $3.10
then you add the $3.10 to the original price which is $41.85
Step-by-step explanation:
A teacher is making 7 identical supply boxes
for each table in her classroom. Each box
contains some pencils and 11 pens. The
teacher uses a total of 182 pencils and pens.
Determine the number of pencils that are in
each box.
Answer:
26
Step-by-step explanation:
182 pencils devided by 7 identical boxes
182÷7
=26 pencils are in each box
Answer:
15 pencils in each box
Step-by-step explanation:
If each box has 11 pens,then there are 77 pens
In total 182 pencils and pens
182-77 = 105 (105 pencils)
105/7 = 15
15x7 = 105
11x7 = 77
105 +77 = 182
Ignore the answer I chose it didn't let me click off of it
Answer:
d i think
Step-by-step explanation:
7 cm
4 cm
4 cm
4 cm
area of base
6.9 cm2

Find the total surface area is I’ll mark Brainlest if you answer this and my other 2 questions plzzz
Answer:
AT=48.9
Step-by-step explanation:
Formula:
step 1; Aʟ = P ʙᴀsᴇ × Ap
2
step 2; Aᴛ = Aʟ + Aʙᴀsᴇ
Ap= 7cm
Abase= 6.9cm² P️= a + b+ c
length side️=4cm
AL = (4+4+4) × 7
2
= 12 × 7
2
= 84 ÷2
AL = 42
AT = AL + Abase
= 42 + 6.9
AT = 48.9 cm
What is the ratio of 18 inches to 1 yard? (Change 1 yard to 36 inches before writing the ratio)
Answer:
1:2
Step-by-step explanation:
18 inches to 1 yard
We need to convert 1 yard to 36 inches
18 inches : 36 inches
Divide each side by 18
18/18 : 36/18
1:2
A roadside vegetable stand sells pumpkins for $5 each and tomatoes for $3 each. The total sales on a certain day was $98. If they sold 10 pumpkins, write and solve a linear equation to find the number of tomatoes sold.
Answer:
16 tomatoes
Step-by-step explanation:
50+3t=98
3t=48
t=16
Can you help A B C Or D image is here
Answer:
c
Step-by-step explanation:
3x3=9
6x3=18
10x3=30
12x3=36
You randomly choose one game piece. Find the theoretical probability of each event. Reduce the fraction in lowest terms and
indicate the percentage rounded to the nearest hundredth, if necessary.
Answer:
Yellow= 1/2 or 50%chance
Red= 1/5 or 20% chance
Blue= 1/5 or 20% chance
Green= 1/10 or 10% chance
Step-by-step explanation:
There are 10 game pieces
5 are yellow
2 are red
2 are blue
And 1 is green
5/10=1/2=50%
2/10=1/5=20%
2/10=1/5=20%
1/10=10%
Add these up and you get 10/10 or 100%
Hope this helps and don't forget to follow!
Find the inverse of the function, f(x)=5(x-4)^3 +6
trade x and y
Answer:
y=[(x-6)/5]^(1/3)+4
Step-by-step explanation:
f(x)=5(x-4)^3 +6
trade x and y
x=5(y-4)^3 +6
x-6=5(y-4)^3
(x-6)/5=(y-4)^3
[(x-6)/5]^(1/3)=y-4
y=[(x-6)/5]^(1/3)+4
which pair of terms has 4a as the greatest common factor ? 8a and 18a , 8b and 16a , 12a and 16ab , 20a and 27a
Answer:
12a and 16ab
Step-by-step explanation:
In the figure, m dbe=50. WHAT IS x
