Answers
Answer: a + b = 40
[tex](3+\sqrt{5})(7-6\sqrt{5})=3.7+7\sqrt{5}-3.6\sqrt{5}-6\sqrt{5}.\sqrt{5}\\\\=21+6.5-11\sqrt{5}\\\\=51-11\sqrt{5}[/tex]
because [tex](3+\sqrt{5})(7-6\sqrt{5})=a+b\sqrt{5}[/tex]
=> a = 51
b = -11
=> a + b = 51 -11 =40
Step-by-step explanation:
Answer:
[tex]a = -9 - 11\sqrt{5} - \sqrt{5}b[/tex]
a = 51
b= -11
Related Questions
George had $127 in his checking account on Thursday. He got paid on Friday and deposited $130.00 into his checking account. Then on Saturday, he wrote two checks: one for $167.00 and one for $42.00. What is his checking account balance after writing the checks
Answers
Answer:
The balance on George's checking account is $48.
Step-by-step explanation:
To find the balance on George's checking account after writing the checks, you have to take the initial balance and add the amount he got paid and subtract the amounts of the checks he wrote:
Checking account balance=$127+$130-$167-$42
Checking account balance=$48
According to this, the answer is that the balance on George's checking account is $48.
change 1700kg into tonnes
Answers
Answer:
1.7 tonnes
Step-by-step explanation:
1700/1000 = 1.7
1.7 tonnes
f(x)=6(x-1)+9 then what is f(3)
Answers
Answer:
the answer is 21
which equation represents a line which is perpendicular to y=0
Answers
Answer:
This is not possible. Perpendicular lines are opposite but there are no opposites of 0
Step-by-step explanation:
Help Me This Is Multiple Choice
Answers
Answer:
The answer is 3, 4, and 6 choices
Step-by-step explanation:
Because its correct
Pls mark me as brainliest
Answer:
It's the 2nd, 3rd, and last box.
Find a number if 5/4 of it is y
Answers
Answer:
can you give more detail to the question?
Step-by-step explanation:
Answer:
n= 4/5y
Step-by-step explanation:
n: number
1.) 5/4n = y
2.) mulitply by 4/5 on both sides because multiplying by the receprical makes 1 (also the same thing as dividing by 5/4)
n= 4/5y
225 students went on a field trip five buses were filled out in 15 students traveled in cars how many students were in each bus?
Answers
Answer:
s
Step-by-step explanation:
Answer:
45 students per bus.
Step-by-step explanation:
225 divided by 5 is 45.
Please help
Please help please
Answers
dbhzhxgushshebnxjxjkxdhxhdh bdbdhxjdnbdbdb
pls answer I give brainliest
Answers
Answer:
Both have important predecessors—our Constitution was influenced by the Magna Carta and the English Bill of Rights of 1689, and the Declaration by John Locke's writings on the consent of the governed and by a document close to home for Thomas Jefferson, the draft version by George Mason of Virginia's Declaration of ...
Step-by-step explanation:
thats what I could find
Find the 13th term in the following arithmetic sequence
2, 10, 18, 26, ...
Answers
Answer:
Find the 13th term in the following arithmetic sequence
2, 10, 18, 26 ...192 is the 13th term
Answer:
a(13) = 98
Step-by-step explanation:
a(n) = a1 + (n-1) d
a1 would be the original term, 2
since you are looking for the 13th term a(n) and n is 13
a(13) = 2 + (13-1) d
d would be the difference between each term, 8
a(13) = 2 + (13-1) 8
Now solve
a(13) = 2 + 12 * 8
a(13) = 2 + 96
a(13) = 98
the answer would be (12)
Answers
thank you.............................
What is -8/3 x 1/4 equal to
Answers
Answer: -2/3
Step-by-step explanation:
Hope that helps!
find the value of the variable: 4n + 6 =26
Answers
Answer:
n=5
Step-by-step explanation:
What is the slope of this line?
Enter your answer as a fraction in simplest term in the box.
Answers
please help me quick i need it and thank you! :)
Answers
Answer:
CH = HD (Radius of circumscribing circle)
Therefore CH= 14
Plz mark as brainliest............. hope it helps
Find the length of the missing side. The triangle is not drawn to scale
Answers
Answer:
MOnkey mode
Step-by-step explanation:
cause why not
~~~~~~~~~~~~~~~~~~~~~~~~~~~~HITHERE~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
~~~~~~~~~~~~I THINK IT IS 7~~~~~~~~~~~~~~~~~
I THINK IT IS 7 BECAUSE IT CANT BE MORE AND IT CANT BE LESS SO IT
~~~~~~~~~~ IS A BIG SIDE SO THAT'S WHY I PICKED 7.~~~~~~~~~~~~~
~~~~~~~~~~~~~~TELL ME IF I AM WRONG~~~~~~~~~~~~~~~~~~~
The smaller moon of Mars, Deimos, has a diameter of 7.5 miles. The larger moon, Phobos, has a diameter that is 1 3 4 times greater. What is the diameter of Phobos?
Answers
Answer: 13.125 miles.
Step-by-step explanation:
Given : The smaller moon of Mars, Deimos, has a diameter of 7.5 miles.
The larger moon, Phobos, has a diameter that is [tex]1\dfrac34[/tex] times greater.
Diameter of Phobos = [tex]1\dfrac34\times\text{(Diameter of Deimos )}[/tex]
[tex]=\dfrac{7}{4}\times7.5 \ \ \ [1\dfrac34 =\dfrac{7}{4}]\\\\=13.125\text{ miles}[/tex]
Hence, the diameter of Phobos = 13.125 miles.
I will mark brainiest to the first person with the correct answer 8x-9-5x=3x-36-18x
Answers
Answer:
x=3/2
Step-by-step explanation:
8x-9-5x=3x-36-18x
3x-9=3x-36+18x
-9=-36+18x
27=18x
x=27/18 or 3/2.
Hope this helps plz mark brainliest :D
HURRRRY!!!! Thank you
Answers
Answer:
C
Step-by-step explanation:
Uhm I tried my best im so sorry if it's wrong
it is B yep he was right have a nice day
A charm bracelet costs $65, plus $25 for each charm, write an equation in standard form that represents the total cost y of a bracelet that has x charms please help!
Answers
Answer: , y = 65+25x
Step-by-step explanation:
Let x = Number of charms
Given : Fixed cost of bracelet = $65
On addition , cost per charm = $25
Total cost of bracelet = Fixed charge + (Charge per charm) x (number of charm)
If y= total cost.
Then, y = 65+25x , which is the required equation.
The graphs of linear functions f and g are shown on the grid.
Which function is best represented by the graph of g?
A g(x) = f(x) − 4
B g(x) = 1/3 f(x)
C g(x) = f(x) − 2
D g(x) = 3f(x)
Answers
Answer:
b
Step-by-step explanation:
The function [tex]g(x)=\dfrac{1}{3}f(x)[/tex] is best represented by the graph of g. Option B is correct.
Given information:
From the given graph of functions f and g, it can be observed that the inclination of f is more than that of function g.
Inclination signifies the angle it makes with the x-axis and slope is the tan of inclination. Greater the value of the slope, greater will be the inclination.
From the graph, the slope of function f is more than the slope of function g. Functions f and g pass through the origin and they both are straight lines.
So, dividing the function f(x) by a constant will reduce the slope of the function g(x). So, the correct function should be [tex]g(x)=\dfrac{1}{3}f(x)[/tex].
Function g(x) = f(x) − 4 represents that the slope of f and g is same. So, it is incorrect.
Function g(x) = f(x) − 2 represents that the slope of f and g is same. So, it is incorrect.
Function g(x) = 3f(x) represents that the slope of g is three times that of f. So, it is incorrect.
Therefore, the function [tex]g(x)=\dfrac{1}{3}f(x)[/tex] is best represented by the graph of g. Option B is correct.
For more details, refer to the link:
https://brainly.com/question/23719749
Tyriq collects coins as a hobby. Over the years he created a huge collection. Tyriq would now like to know how many dimes and how many quarters he has in one jar. This jar contains 675 total coins and the value of all the money in the jar is $135. How many dimes are there in the jar? How many quarters?
Answers
Answer:
230 dimes and 340 quarters sorry if wrong
Step-by-step explanation:
Raise to the power:
[tex](-3y)^{4}[/tex]
Answers
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[tex]( { - 3y})^{4} = ({ - 3})^{4} \times ( {y})^{4} = [/tex]
[tex]81 \times {y}^{4} = 81 {y}^{4} [/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
explanation: you raise each term to the 4th power
for the first term “3” 3•3•3•3 = 81
for the second term “y” y^4
PLEASE HELP ME ASAP!!
Answers
Answer:
1/4x
Step-by-step explanation:
Brooke needs a new computer. On Friday, the computer was $200.00. On Saturday, the price of the computer was $149.00. Determine if there was a markup or markdown and by what percent.
Answers
Answer:
Step-by-step explanation:
Given
price of the computer on Friday = $200
price of the computer on Saturday = $149
Difference in price = 200 - 149 = $51
Since the price reduces in price by $51, hence there was a markup in price.
% markup = difference in price/original price * 100%
% mark up = 51/200*100%
% markup = 51/2
% markup = 25.5%
Hence the markup was a 25.5% change
Answer:
25.5 is the answer..........................................................
Step-by-step explanation:
3 Elena and Jada are 32 miles apart on a path when they start
moving toward each other, Elena runs at a constant speed of 6
miles per hour, and lada walks at a constant speed of 2 miles per
hour, How long does it take until Elena and Jada meet? Complete
the table to show your reasoning,
(table: 8 points total-
2 points
for each section)
Elapsed Time
Distance Apart
(hours)
(miles)
0
32
1
24
2
8 을
Hours it takes Elena and Jada to meet: (2 points)
Answers
Answer:
The hours it takes Elena to meet Jada = 4 hours
Step-by-step explanation:
The distance between Elena and Jada = 32 miles
The speed with which Elena runs = 6 miles per hour
The speed with which Jada walks = 2 miles per hour
Let t, represent the time it takes until Elena and Jada meets, we have;
Distance = Speed × Time
The total distance covered by both Elena and Jada before they meet = The distance between them = 32 miles
The distance covered by Elena before meeting Jada = Elena's speed × The time that elapsed for them to meet
∴ The distance covered by Elena before meeting Jada = 6 mph × t
The distance covered by Jada before meeting Elena = Jada's speed × The time that elapsed for them to meet
∴ The distance covered by Jada before meeting Elena = 2 mph × t
The total distance covered by both Elena and Jada before they meet = The distance covered by Elena before meeting Jada + The distance covered by Jada before meeting Elena = 32 miles
∴ The total distance covered by both Elena and Jada before they meet = 6 mph × t + 2 mph × t = 32 miles
t × (6 mph + 2 mph) = 32 miles
t × 8 mph = t × 8 miles/hour = 32 miles
t = 32 miles/(8 miles/hour) = 4 hours
The time it takes until Elena and Jada meets = t = 4 hours
write 56.78 correct to one significant number
Answers
Answer:
60
Step-by-step explanation:
Solve the following
equation:
8x – 4(x + 8) = 8
Answers
Answer:
[tex]\huge\boxed{\sf x = 10}[/tex]
Step-by-step explanation:
[tex]\sf 8x-4(x+8) = 8\\\\Expanding \ Parenthesis\\\\8x-4x-32 = 8\\\\4x -32 = 8\\\\Adding \ 32\ to \ both \ sides \\\\4x = 8+32\\\\4x = 40\\\\Dividing \ both \ sides \ by \ 4\\\\\boxed{\sf x = 10}\\\\\rule[225]{224}{2}[/tex]
Hope this helped!
~AnonymousHelper1807The larger of two numbers is fourteen more than twice the smaller number. If the sum of the numbers is 41, find the two numbers. Write your answer as two numbers separated by a comma.
Answers
Answer:
x+y=41
x=2y+14
by solving eq
2y+14+y=41
y=27
×=68
What is the distance between point G(−4, 1) and point H(−12, 1) ?
would be (8)
Answers
Answer:
Yes, the distance between the points would be 8
Step-by-step explanation:
Since the y is the same, you can just find the distance between 12 and 4
12-4=8
