Answer:
10
Step-by-step explanation:
3c - 5 =2c +5
3c - 2c =5 +5
c=10
Pls give me the answer to
12 – 3x = -6х
Answer:
-4
Step-by-step explanation:
Move variables to one side and numbers on the other.
12 - 3x = -6x
+ 3x +3x
12 = -3x
/-3 /-3
-4 = x
Straight angle represents?
A. 90 degrees
B. 180 degrees
C. 270 degrees
D. 360 degrees
Answer:
B. 180 degrees
Step-by-step explanation:
The straight angle represents 180°. Hence, option (B) is the correct answer.
Si a:b:c= 4:3:2 ayudaaaa
Answer:
a=6 b=4 3=2.55555555567
Evaluate the function for an input value of 3. f (x) = -4x^2 – 3x – 5
Answer:
-50Step-by-step explanation:
Function given:
f(x) = -4x² – 3x – 5Evaluate the function for an input value of 3
Input value is x = 3, output value is:
f(3) = -4(3²) – 3(3) – 5 = -4(9) - 9 - 5 = -36 - 14 = -50f(3) = -50f(3)
-4(3)²-3(3)-5-4(9)-9-5-36-14-50WILL MARK BRAINLIEST!
which quadratic function best fits this data?
x y
1 350
2 539
3 678
4 875
5 690
6 502
A. y=−56.80x2+437.91x−65.5
B. y=−56.80x2+437.91x+65.5
C. y=56.80x2−437.91x+65.5
D. y=−56.80x2−437.91x+65.5
Answer: A
Step-by-step explanation: Took the test |
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The quadratic equation that best fits this data would be A.
\(y=-56.80x^2+437.91x-65.5\)
What is a solution for a quadratic equation?Suppose that we've a function y = f(x) such that f(x) is quadratic.
When y = 0, then the values of x for which f(x) = 0 is called solution of quadratic equation f(x) = 0
This solution gives values of x, and when we plot x and f(x), we'd see that the graph intersects the x-axis at its solution points.
The given data is follows as;
x y
1 350
2 539
3 678
4 875
5 690
6 502
The quadratic equation that best fits this data
A. \(y=-56.80x^2+437.91x-65.5\)
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the faucet can fill the tub in 15 minutes. the drain can empty the tub in 20 minutes. how long will it take to fill the tub with drain open?
Using Tap working problem solving,
when faucet and drain working together, the time to fill up the tub is 60 minutes.
We have the following information about question,
The time taken by faucet to fill up the tub
= 15 minutes
The time taken by drain to empty the tub
= 20 minutes
we have to calculate the time in which the tub is fully fill the tube with drain open.
Rate of fill up the tub by faucet = 1/15 i.e 1/15 th of tub in one minute .
Rate of empty the tub by drain = 1/20 i.e 1/20 th of tub in one minute.
In one minute both are working together and will fill the tub = 1/15 - 1/20 = 1/60 i.e 1/60 th of tub
Since, it takes one minute to fill 1/60th of the tub and it will take 60 minutes to fill the tub.
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What are the 4 steps to solving inequalities?.
For solving the inequalities, there are more than four steps.
The step to solve given inequalities, the first step is to add the same number to both sides, the second step is to Subtract the same number from both sides and the third step is to Multiply both sides by the same positive number, and the fourth step is to Divide both sides by the same positive number, and the fifth step is to Multiply both sides by the same negative number and reverse the sign and the last step is to Divide both sides by the same negative number and reverse the sign. Out of which steps 2,3,4 and 5 are the most important steps.
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2) MULTIPLE CHOICE: Find the value of y in the triangles.
A. 10/3
B. 10v2
C. 20V2
D. 106
if a is an n × n matrix such that a = p dp −1 with d diagonal and p invertible, then the columns of p must be eigenvectors of a.T/F
False. The columns of matrix P are not necessarily eigenvectors of matrix A. While the diagonal matrix D contains the eigenvalues of A, the eigenvectors are not explicitly determined by the columns of P.
False. The columns of matrix P are not guaranteed to be eigenvectors of the transpose of matrix A (A.T).
In the given equation, \(a = PDP^(-1),\)
where D is a diagonal matrix and P is an invertible matrix.
The diagonal elements of D represent the eigenvalues of matrix A, while the columns of P correspond to the eigenvectors of A.
When considering the transpose of matrix A (A.T), we have \((A.T) = (PDP^(-1)).T = (P^{(-1)})^T D^T P^T.\)
Taking the transpose of a product involves reversing the order of the matrices and transposing each matrix individually.
Therefore, we have \((A.T) = P^T D^T (P^{(-1)})^T.\)
Since P is an invertible matrix, its transpose \(P^T\) is also invertible. Similarly, the transpose of the inverse of \(P, (P^{(-1)} )^T,\) is also invertible.
However, the key point is that the diagonal matrix\(D^T\) is not guaranteed to have the same eigenvalues as matrix A.
The eigenvalues of A are present in D, but they may not remain on the main diagonal after transposing.
Thus, the columns of matrix P, which correspond to the eigenvectors of A, may not necessarily be the eigenvectors of A.T.
In conclusion, the statement is false.
The columns of matrix P do not have to be eigenvectors of the transpose of matrix A (A.T).
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NEED THIS DONE STAT
WILL GIVE BRAINLIEST
15 POINTS!!!!!
Answer:
I don't have the explanation however I did this equation like months ago and I believe it's "the number of miles"
Rosa ran the hurdles in 58.32 seconds. maya ran the hurdles in 54.078 seconds. what is the difference between the two times? 3.954 seconds 4.242 seconds 4.258 seconds 5.758 seconds
Answer:
Step-by-step explanation: 4.242
The difference of time taken by Rosa and Maya to ran the hurdles is 4.242 seconds .
The correct option is B .
Given, time taken by Rosa and Maya to ran the hurdles.
Time taken by Rosa to ran the hurdle = 58.32 seconds .
Time taken by Maya to ran the hurdle = 54.078 seconds .
Difference between the time taken:
Rosa is taking more time to cover the distance than Maya . Thus the speed of Rosa is less than the speed of Maya .
Relationship between speed, time and distance.
Distance = Speed × Time
Subtract time taken by Rosa to ran the hurdle from time taken by Maya to ran the hurdle.
= 58.32 - 54.078
= 4.242 seconds
Therefore the correct option is B .
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Same Day Surgery Center received a 120-day, \( 6 \% \) note for \( \$ 72,000 \), dated April 9 from a customer on account. Assume 360 days in a year. a. Determine the due date of the note.
Therefore, the due date of the note is August 9 adding the number of days in the note's term to the note's date adding the number of days in the note's term to the note's date.
To determine the due date of the note, we need to add the number of days in the note's term to the note's date.
Given:
Note term: 120 days
Note date: April 9
To find the due date, we add 120 days to April 9.
April has 30 days, so we can calculate the due date as follows:
April 9 + 120 days = April 9 + 4 months = August 9
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1) A wallet is full of $5 and $10 bills. He has a total of 25 bills and a total of $230. How many of each bill do you have?
Answer:
6 $5 dollar bills, and 20 $10 dollar bills
Step-by-step explanation:
Five Spanish friends are playing in a house. Cammy, Ann, Rake, Dora, Stephen. Cammy and Ann are playing Chess, while Rake and Dora are playing together. Then Stephen is playing by himself, which would mean he is playing One player games. Can you figure out which game they are playing?
Answer:
Step-by-step explanation:A. Solution:
So we know that Ann and Cammy are playing Chess, and Stephen is playing by himself, which would mean he is playing -ONE-player games. So we have Rake and Dora, when you see their names, it creates a word. Cammy, Ann, Rake, Dora, and Stephen.
C A R D S
So Rake and Dora are playing cards. But what kind of cards? The ONE is spotlighted for clues, we have Spanish. So -ONE- in Spanish is UNO. If you search UNO, its a card game, TAAAAADDDDDDDDDAAAAAAAAA.
hey what's 3 3/8 + 3 3/8 + 3 3/8 as a proper fraction i need it right right now
Answer: 10.1
Step-by-step explanation:
What is the area of Dawn’s porch
Solve by using Substitution: 3x-y=13 2x +2y = -10
someone help me pleaseee
Answer:
x =< 5
Step-by-step explanation:
-x >= -5
(-)× -x >= -5 ×(-) <-- When you change signs by multiplying it in inequalities, you'll have to flip >, <, =<, >= to satisfy the inequality.
x =< 5
A plane flying with a constant speed of 25 km/min passes over a ground radar station at an altitude of 12 km and climbs at an angle of 30 degrees. At what rate, in km/min is the distance from the plane to the radar station increasing 2 minutes later?
Your answer: ____ kilometers per minute.
Hint: The law of cosines for a triangle is c²=a²+ b²-2ab cos (theta)
where theta is the angle between the sides of length a and b.
the distance from the plane to the radar station is increasing at a rate of approximately 30.84 kilometers per minute.
What is the right-angle triangle?A triangle is said to be right-angled if one of its angles is exactly 90 degrees. The total of the other two angles is 90 degrees. Perpendicular and the triangle's base are the sides that make up the right angle. The longest of the three sides, the third side is known as the hypotenuse.
Given, A plane flying with a constant speed of 25 km/min passes over a ground radar station at an altitude of 12 km and climbs at an angle of 30 degrees.
We can use the law of cosines to find d:
d² = 12² + (h + 12)² - 2(12)(h + 12)cos(θ)
Since the plane is climbing at an angle of 30 degrees, we can use trigonometry to find h:
sin(30) = h / (25 km/min * 2 min)
h = 25 km/min
Now we can substitute this value of h into the equation for d and simplify:
d² = 12² + (25 + 12)² - 2(12)(25 + 12)cos(θ)
d² = 12² + 37² - 2(12)(37)cos(θ)
d² = 144 + 1369 - 888cos(θ)
d² = 1513 - 888cos(θ)
To find the rate at which d is changing, we can take the derivative of both sides of this equation with respect to time:
2dd/dt = -888(d(cos(θ))/dt)
Since the plane is flying with a constant speed of 25 km/min, we can use trigonometry to find d(cos(θ))/dt:
cos(θ) = 12/d
d(cos(θ))/dt = -(12/d²)(dd/dt)
d(cos(θ))/dt = -(12/d²)(25 km/min)
Now we can substitute these values into the equation for the rate of change of d:
2dd/dt = -888(-(12/d²)(25 km/min))
2dd/dt = (888*12)/(d²)(25 km/min)
dd/dt = (5328)/(d²) km/min
Finally, we can substitute the value we found for d into this equation to get the rate at which d is changing 2 minutes later:
d = sqrt(1513 - 888cos(θ))
θ = 30 degrees
dd/dt = (5328)/(d²) km/min
dd/dt = (5328)/(1513 - 888cos(30)) km/min
dd/dt ≈ 30.84 km/min
Therefore, the distance from the plane to the radar station is increasing at a rate of approximately 30.84 kilometers per minute.
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If 5 + 2T - 3 = 6 then what is the value of T?
Answer:
T = 2
Step-by-step explanation:
5 + 2T - 3 = 6
2 + 2T = 6
2T = 4
T = 2
Answer:
T=2
Step-by-step explanation:
first you're going to subtract the numbers 5-3=2
then you're going to move the constant to the right and change its sign(-2 now)
then you're going to do 6-2=4
divide both sides of the equation by 2
T=2
HELP ME ASAP!!! PLS!!
The Chu family can hike 3 miles per hour. How long will it take them to hike 15 miles?
A- 3.75 hours
B- 4 hours
C- 4.5 hours
D- 5 hours
Answer:
D- 5hrs
Step-by-step explanation:
If the family can hike 3 miles per hour,
for 15 miles: 15/3 = 5 hours.
Every hour they cover 3 miles per hour, so to cover 15 miles, they will take 5 hours
Answer:
D. 5 hours
Step-by-step explanation:
3 miles per 1 hour so 3/1
15 miles per x hours so 15/x
3/1 = 15/x or 3 = 15/x
get x by itself so
3 divided by 3 and 15 divided by 3
x = 5 hours
A grass fertilizer is sold in 5-pound bags. Stuart calculates that he needs enough fertilizer to cover 4,350 square feet. If each pound of fertilizer covers 362.5 square feet, how many 5-pound bags does Stuart need to buy?
Answer:
3
Step-by-step explanation:
please help with question below thank you
Answer:
44/51
Step-by-step explanation:
1 5/6 ÷ 2 1/8
Change to improper fractions
1 5/6 = (6*1+5)/6 = 11/6
2 1/8 = (8*2 +1) /8 = 17/8
11/6 ÷17/8
Copy dot flip
11/6 * 8/17
11/17 * 8/6
11/17 *4/3
44/51
Danielle created a scale drawing of her room. Sheused the scale where 1 inch represents 2 feet of theactual room. Her drawing is 8 ½ in. by 11 in. What arethe measurements of her actual room?
A cup of fruit contains 12 graps and 3 strawberries Compare strawberries to the total number of fruit
Answer:
There are 3 strawberries and the total number of fruit is 15, so 3:15 is the ratio, or 3/15.
Step-by-step explanation:
The total number is all of the fruits added together, so 12 + 3.
The 3 means the number of strawberries, so you just put them together into a ratio.
Hope this helps.
Mark as brainliest please
what is 5u+10u for math 8?
Answer:
(5+10)u
= 15u
is the solution
Triangle ABC has vertices with coordinates -1,-1 , 4,0 and 0,4 Prove that ABC is an isosceles triangle but not a right triangle.
what is 1 +1 i hav a home work to doo ples helps mee
Answer:
2
Step-by-step explanation:
add
mitchels room measures 10 inches by 6 inches on a scale drawing. what are the actual measermets of his room (in feet) of he uses a scale of 1 to 24?
width height
Answer:
20 ft by 12 ft
Step-by-step explanation:
(10 in x 24) / 12 ft = (240 in / 12 ft) = 20 ft
(6 in x 24) / 12 ft = (144 in / 12 ft) = 12 ft
You are baking cookies. Each batch makes 24 cookies. You make x batches of cookies. but eat 5 cookies as you are bkaing. Write an expression for the number of cookies you have
My answer from brainly for part a : 24x-5
Is your answer to part a the same if you eat 5 cookies from each batch as you are baking? explain.
You make 3 batches of cookies to make bags for a sale. You put 5 cookies in each bag. Given 14(5)+2=3(24), what do the terms represent?
Answer: The answer to part a is the same if you eat 5 cookies from each batch as you are baking because the number of cookies you have is the product of the number of batches times the number of cookies per batch minus the number of cookies you eat.
In the expression 14(5) + 2 = 3(24)
14(5) represents the total number of cookies you put in 14 bags. (14 x 5) = 70
2 represents the number of cookies left after you have put 5 cookies in each of the 14 bags.
3(24) represents the total number of cookies you made from the 3 batches of cookies. (3 x 24) = 72
So the equation can be read as:
The total number of cookies you put in bags (70) plus the number of cookies left (2) is equal to the total number of cookies made from the 3 batches (72).
Step-by-step explanation: