Answer:dada
Step-by-step explanation:
dada
Ms.Nguyen needs to separate $385 into three parts to pay some depts. The second part must be five times as large as the first part. The third part must be $35 more than the first part. How much money must be in each part?
solve the simultaneous equation 4x^2 - 9y^2 = 19
2x + 3y= 1
The line 2x +3y = 1 is tangent to 4x^2 -9y^2 = 19
:
Solve the linear equation for y
:
1) y = -2x/3 +1/3
:
substitute for y in the equation of the hyperbole
:
4x^2 -9(-2x/3 +1/3)^2 = 19
:
4x^2 -9(4x^2/9 -4x/9 +1/9) = 19
:
4x^2 -4x^2 +4x -1 = 19
:
4x -20 = 0
:
4x = 20
:
x = 5
:
use equation 1 to get the value of y
:
y = -2(5)/3 +1/3 = -3
:
******************************************************************
solution is x = 5, y = -3 which is the point (5, -3)
:
check the solution
:
hyperbole
:
4(5^2) -9(-3)^2 = 19
:
100 -81 = 19
:
19 = 19
:
Line
:
2(5) +3(-3) = 1
:
10 -9 = 1
:
1 = 1
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Question 2 (1 point) (11.01 MC) Nina has a piece of fabric measuring 5 yards. How many 1-inch strips can be cut from the fabric? (1 point) a 17 strips b 50 strips c 60 strips d 120 strips
Answer:
180 strips
Step-by-step explanation:
Note that:
1 yard = 36 inches
5 yards = x
Cross Multiply
x = 5 × 36 inches
x = 180 inches
Hence:
1 piece of fabric = 180 inches
How many 1-inch strips can be cut from the fabric?
180 inches = 1 piece of fabric
1 inch = x
x = 180 strips
4s - (s - 12) = 1- (1 - 6s)?
Answer:
s=-4
Step-by-step explanation:
combine like terms on each side and get 3s-12=6ssubtract 3s from both sides to get -12=3sdivide both sides by three and get s=-4What is the answer help me??!!
What is the mass of 2.5 moles of carbon dioxide?
Answer:
110 grams
Step-by-step explanation:
CO2 molecule is made up of Carbon (atomic mass =12) and oxygen (atomic mass=16).
So first finding the mass of 1 molecule of CO2 which is equals to
= mass of 1 carbon atom + masses of 2 oxygen atom, we get
= 12+(16*2)= 12+32= 44 a.m.u.
Now 1 molecule of CO2 has mass 44 amu so mass of 1 mole CO2 will be 44 grams.( 1 a.m.u.=1.6729*10^-33 grams. 1 mole = 6.022*10^23, so 44 a.m.u.=73.6076*10^-33 grams approx. For one mole CO2, 73.6076*10^-33*6.022*10^23 which is approximately equals to 44 grams. )
1 mole CO2= 44grams, so 2.5 moles = 44*2.5= 110 grams
So our answer is 110 grams.
lowkey hope this helped you, good luck whatever you need it for Imaooo
Can someone pl help. Thx
Answer:
3.10?
Step-by-step explanation:
i dont know sorry if its wrong
Two functions, A and B, are described as follows: Function A y = 9x + 4 Function B The rate of change is 3 and the y-intercept is 4. How much more is the rate of change of function A than the slope of function B? (5 points)
Answer:
The answer to this problem is 6.
Step-by-step explanation:
y
70
What is the sum of the degree measures
of angles x and y?
Answer:
I know for sure, x=110 and the interior of a triangle is 180 degrees added up, so it is definately less than 180 degrees for the 2 angles added up, I am not sure what y is I haven't done geometry for almost 2 years now sorry.
A=πr2 If the radius (r) of the circle is 3, what is the area in terms of π?
hope it's helpful ❤❤❤❤❤❤
THANK YOU.
15/4 improper fraction to whole number
Answer:
The answer is 3
Step-by-step explanation:
the paint store has 45 gallons of white paint in stock how many quarters how many quarters of white panit is this
Answer:
45 • 4 = 180
Step-by-step explanation:
1 quart = 1/4 gallon.
45 • 4 = 180
Eloise has 293 books that she must package into boxes. Each box must hold 8 books. Eloise divides 293 by 8 and gets an answer of 36 R 5.
What is the correct interpretation of R 5 for this situation?
Answer:
it means there are five books left, and the 36 boxes are filled
Triangle QRS is located at Q(‐2, 3), R(6, 3), and S(‐2,‐2). Which of the following classifies triangle QRS?
Answer:
Equiangular Triangle (D)
Step-by-step explanation:
The points connect to make a right angle which has all equal angles.
Answer:
it's isosceles!
Step-by-step explanation:
the points form a right triangle, which eliminates equiangular without even thinking about it since equiangular triangles must have all equal angles, which is impossible with a 90 degree angle since all angles of a triangle add up to 180. Equilateral is also eliminated because the side lengths are not equivalent. Scalene is also eliminated because the two sides adjacent to the 90 degree angle are congruent. This leaves isosceles. It is isosceles because it has two congruent side lengths and two congruent angles.
for every 3 hours of ballet practice, Danielle drinks 2 cups of water. How much will she drink during 7.5 hours of practice?
Answer:
5 cups of water
Step-by-step explanation:
well if we take this and turn it into a ratio, we know the base is 3hrs/2cups
so if we want to find 7.5hrs/x then we just multiply the two fractions and see what we get. so 7.5 divided by 3 is equal to 2.5
so we take the amount of water she drinks in 3hrs which is 2cups of water and we multiply that by 2.5 leaving us with Danielle drinking 5 cups of water in 7.5 hours of ballet practice.
hope this helps if it did please leave a like, rate, and give me the brainliest is possible!
have a great day!
I would assume it would be 4.5 cups
I need help fast
If triangle RST cong triangle XYZ , then ST is congruent to which of the following?
Nicole had two days to write a paper for
her English class. She wrote 3 pages the
first day and 4į pages the second day.
How many total pages did Nicole write for
her paper?
Give your answer as a mixed number in simplest form.
Enter the number that belongs in the green box.
Ok
Answer:
7/1
Step-by-step explanation:
7 over 1 equals 7 which is the answer.
during a holiday sale, a furniture store is offering 12% off all merchandise. after the discount is applied, the customer must pay 5% sales tax on the purchase price. which of these shows the correct final price for the given item? select all that apply
Answer:
Answer Key 7-5 Thru 7-8
Step-by-step explanation:
Find z.
5 = z/-4 - 3
Answer:
z = -32
Step-by-step explanation:
5 = z/-4 - 3
Add 3 to both sides
8 = z/-4
Multiply both sides by -4
-32 = z
(3x)^3
(power of a product rule)
Answer:
Step-by-step explanation:
Here is your workings
(3x)^3 Apply the rule of exponents
Step 2
(3x)^3=3^3x^3 Simplify
Step 3
3^2=27 Solve
27x^3
find the number of distinct permutations of the word "CALCULATOR."
Given:
The word is "CALCULATOR."
To find:
The number of distinct permutations.
Solution:
In the word "CALCULATOR",
The number of letters = 10
In which, we have 2 C, A, L and 1 U, T, O, R.
We know that,
[tex]^nC_r=\dfrac{n!}{(n-r)!}[/tex]
[tex]^nC_n=\dfrac{n!}{(n-n)!}=n![/tex]
To find the number of distinct permutations of the given word need to divide permutation of all letter by the permutations of repeated letters.
[tex]\text{Total ways}=\dfrac{^{10}C_{10}}{^2C_2\ ^2C_2\ ^2C_2\ ^1C_1\ ^1C_1\ ^1C_1\ ^1C_1}[/tex]
[tex]\text{Total ways}=\dfrac{10!}{2!2!2!1!1!1!1!}[/tex]
[tex]\text{Total ways}=\dfrac{10\times 9\times 8\times 7\times 6\times 5\times 4\times 3\times 2\times 1}{2\times 2\times 2\times 1\times 1\times 1\times 1}[/tex]
[tex]\text{Total ways}=453600[/tex]
Therefore, the number of distinct permutations of the word "CALCULATOR" is 453600.
Number of distinct permutation of the word "CALCULATOR." is 453600
How to solve this problem?
permutations of the word "CALCULATOR"Total number of words in "CALCULATOR" is 10
we find out the words that are repeating
A is repeating twice (2)
C is repeating twice (2)
L is repeating twice (2)
Number of permutations = number of letters !/ repeating letters!
Number of distinct permutation =
[tex]\frac{10!}{2!2!2!} \\\frac{10\cdot9\cdot8\cdot7\cdot6\cdot5\cdot4\cdot3\cdot2\cdot1}{2\cdot2\cdot2} \\453600[/tex]
Number of distinct permutation of the word "CALCULATOR." is 453600
learn more about the distinct permutations here:
https://brainly.com/question/21767354
Tyler bought 2 tickets to a basketball game on the website Game Finder. Each ticket cost $65, and the website charged a convenience fee that was a small percent of the ticket cost.
If Tyler’s total bill came to $132.60, what percent was the convenience fee?
Answer: 1.961%
Step-by-step explanation:
A band earns $400 for playing at the festival the manager is pay 10% of the money earned and the band is saving 15% of the money earned to put towards Recording expenses how much money is left for the band to split?
According to the graph, what is the solution (ordered pair) of this system of equations?
Answers:
(2, -3) and (3, -3)
==================================================
Work Shown:
Since f(x) = -3, we'll replace f(x) with -3 and solve for x
f(x) = x^2 - 5x + 3
-3 = x^2 - 5x + 3 .... f(x) replaced with -3
0 = x^2 - 5x + 3 + 3 ... adding 3 to both sides
0 = x^2 - 5x + 6
x^2 - 5x + 6 = 0
(x - 3)(x - 2) = 0 .... factor; you can also apply the quadratic formula
x-3=0 or x-2=0
x = 3 or x = 2
So that explains where that '2' comes from when they listed (2, ?)
-------------
To find what replaces the question mark, we will plug x = 2 into the function
f(x) = x^2 - 5x + 3
f(2) = 2^2 - 5(2) + 3
f(2) = 4 - 10 + 3
f(2) = -3
We could have skipped this portion and said that the solution is (2,-3) but plugging x = 2 into the function to get the output y = -3 helps confirm that x = 2 is one of the x solutions.
-------------
Let's do the same for x = 3
f(x) = x^2 - 5x + 3
f(3) = 3^2 - 5(3) + 3
f(3) = 9 - 15 + 3
f(3) = -3
We end up with the same output, so x = 3 is confirmed as well.
The graph below visually helps reinforce these confirmations. Each solution is an intersection between the two curves.
Answer:
cool
Step-by-step explanation:
I'm not sure I'm just getting points
Please help, due Tomorrow. Will mark brainlist if correct
Answer:
Its non-linear and decreasing
Step-by-step explanation:
Answer:
( -∞,2)
Step-by-step explanation:
The function is decreasing from the left up until the vertex
What type of slope does the following equation have y = -6?
A. Positive
B. Negative
C. Zero
D. Undefined
Answer:
C. Zero
Step-by-step explanation:
This is because if you graph it, it is in a straight line horizontally, it doesn't go up or down.
HELP PLEASE I NEED THE ANSWER
find x
You have to add the sides so 3cm + 9cm which gives you 12 cm therefore....
X = 12 cm :D
what was the median of a number plot again? its the.........middle right? XD
yall please help i am struggling
Answer:
I think it might be around 93
Step-by-step explanation:
Can someone help me solve this question !
Answer:
m= 2/3
Step-by-step explanation:
up 2 right 3
y= 2/3x-2
Answer:
m=2/3
Step-by-step explanation:
when it asks for m its asking for the slope and the slope of that line is 1/3