If you add the two equations in the middle together, you'd end up with
-3y = 15
And divide both sides by -3 and you'd have
y = -5
Since there's only one solution with a y-value of -5, it must be the first option, (-19/2, -5).
You can confirm this is correct by substituting in -19/2 for x and -5 for y in both equations.
A spinner Is divided into elght equal sections. Each section is labeled with one number, from 1-8. Maggle spins the
pointer on the spinner five times, each at a different speed. Four of the times the pointer lands on the section labeled 7.
Which statement BEST explains these results?
The section labeled 7 is slightly bigger than the other sections
The bottom of the spinner is not flat.
The section labeled 7 appears more than once on the spinner.
The pointer of the spinner is not balanced.
Answer:
Step-by-step explanation:
The bottom of the spinner is not flat.
hey what's the answer
\( - 11a(3a + 2a)\)
\( - 11a(3a + 2) \\ = - 11a \times 3a \: \: \: \: \: \: \: \: \: \: \: \: \: - 11a \times 2a \\ = - 11 \times 3 \times a \times a \: \: \: \: \: \: \: \: \: \: \: \: \: - 11 \times 2 \times a \times a \\ =\boxed {- 33a {}^{2} - 22a {}^{2}}\)
\(I \: hope \: it \: will \: help \: you\)
For a science project, two students need to estimate the average height of the 273 students in the senior class at their school. Each student measures the heights of 20 randomly selected members of the senior class. The mean height for one sample is 166 cm, and the mean height for the other sample is 170 cm. Which is the better estimate of the mean height of the students in the senior class?
166 cm
170 cm
Neither result is a good estimate.
Both results are equally good estimates.
Step-by-step explanation:
Neither is a good estimate
20 is too little of a sample, in my opinion, anyway.
30-50 might be better.
(6 - 7) + (-11 + -2) =
Answer:
-14
Step-by-step explanation:
(6 - 7) + ( - 11 + -2)
= -1 + -13
= -14
Answer: - 14
Step-by-step explanation: 6 - 7 = -1 -11+ -2 = - 13 -13 + - 1 = -14
Hope that helps! :)
A fair die is rolled 2 times. What is the probability of getting a 1 followed by a 4? Give your answer to 4 decimal places.
Answer: P(1 and 4) = .0278
Step-by-step explanation:
A die has 6 sides so it has 6 possible outcomes
Probability of getting a 1:
There is only one 1 on the die of 6 sides
P(1) = 1/6
Probability of getting a 4:
P(4) = 1/6
Probability of getting a 1 and then a 4:
Because it is a dependent event. you need to get a 1 and then a 4, so you multiply
P(1 and 4) = 1/6 * 1/6
P(1 and 4) = 1/36
P(1 and 4) = .0278
The probability of getting a 1 followed by a 4 when rolling a fair die twice is approximately 0.0278
To calculate the probability of getting a 1 followed by a 4 when rolling a fair die twice, we need to consider the outcomes of each roll.
The probability of getting a 1 on the first roll is 1/6 since there is only one favorable outcome (rolling a 1) out of six possible outcomes (rolling numbers 1 to 6).
The probability of getting a 4 on the second roll is also 1/6, following the same reasoning.
Since the two rolls are independent events, we can multiply the probabilities:
P(1 followed by 4) = P(1st roll = 1) * P(2nd roll = 4) = (1/6) * (1/6) = 1/36 ≈ 0.0278
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Answer the one you are able to answer cuz o have no idea what to do. So please save me
Answer:
I only know number 7 sorry
Step-by-step explanation:
Anyways.....
The solution she has in the bucket has 80% water (as you found out), including 14.4 fl oz. water in a total of 18 fl oz. solution.
Barbara will need to add ammonia, but only after removing some (x fl oz.) of the solution she has in the bucket.
If Barbara wants an 18 fl oz. bucket full of 25% ammonia, she will need to have in that bucket 18 × 0.25=4.5 fl oz. ammonia (25% ammonia) and
18 × 0.75=13.5 fl oz. water (75% water).
Barbara will have to start by removing some of that 80% water solution to end up with just 13.5 fl oz. water in the bucket. Removing x fl oz. of solution, gets rid of 0.8x fl oz. of water, leaving 14.4 - 0.8x fl oz. of water. since the amount of water needed is 13.5 fl oz. Our equation is
13.5 = 14.4 - 0.8x
13.5= 14.4 - 0.8x →→ 0.8x = 14.4 - 13.5 →→ 0.8x = 0.9 →→ \(x= \frac{0.9}{0.8}\) →→ x=1.125 fl. oz
Therefore 1.125 (may need to round) fl. oz should be replaced with ammonia.
Hope this helps some of your stress.
What clockwise rotation would result in the same figure
transformation as a 240 degree counterclockwise rotation?
а
235 degrees
b 90 degrees
c120 degrees
d 180 degrees
Answer:
c. 120
Step-by-step explanation:
based on the equations for each line determine how many solutions the system would have.
y=5x+3
y=5x-2
The Equations have No solution.
We have,
y=5x+3
y=5x-2
Solving the Equation we get
5x + 3 = 5x - 2
5x - 5x = -2-3
0 = -5
Also, 5/5 = -1 / (-1) ≠ 3-/2
Thus, the equation have no solution as the equation represent parallel line.
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PlEASE HELP ME AND I WILL GiVE U BRAINLIEST
Answer:
-1!
Step-by-step explanation:
If you plot the points on a graph, use RISE/RUN! You will see that you go up 5, left 5. Since you went left, it's a negative slope. 5/5 is 1, so the answer is -1! I really hope this makes sense, but if you need help, Im here!
I included a graph if you need to see it!
Bonita corporation owns machinery that cost $24,400 when purchased on july 1, 2017. depreciation has been recorded at a rate of $2,928 per year, resulting in a balance in accumulated depreciation of $10,248 at december 31, 2020. the machinery is sold on september 1, 2021, for $12,810.
prepare journal entries to (a) update depreciation for 2021 and (b) record the sale. (credit account titles are automatically indented when amount is entered. do not indent manually. if no entry is required, select "no entry" for the account titles and enter 0 for the amounts.)
The entry to update depreciation will debit the Depreciation Expense acc. ,to record the sale will debit the Cash account and Accumulated Depreciation acc.,
(a) To update the depreciation for 2021, we need to determine the depreciation expense for the year. Since depreciation has been recorded at a rate of $2,928 per year, the depreciation expense for 2021 would also be $2,928. The journal entry to update depreciation for 2021 would be:
Date: December 31, 2021
Depreciation Expense 2,928
Accumulated Depreciation 2,928
This entry debits the Depreciation Expense account to record the expense for the year and credits the Accumulated Depreciation account to update the balance.
(b) To record the sale of the machinery on September 1, 2021, we need to record the cash received and remove the machinery from the books. Given that the machinery is sold for $12,810, we need to calculate the gain or loss on the sale. The original cost of the machinery was $24,400, and the accumulated depreciation at the time of sale was $10,248. Therefore, the carrying value of the machinery is $24,400 - $10,248 = $14,152. The gain or loss on the sale is the difference between the sale price and the carrying value.
Assuming there is no additional information provided, let's assume there is neither gain nor loss on the sale. The journal entry to record the sale would be:
Date: September 1, 2021
Cash 12,810
Accumulated Depreciation 10,248
Machinery 24,400
This entry debits the Cash account for the cash received from the sale, credits the Accumulated Depreciation account to remove the accumulated depreciation, and credits the Machinery account to remove the machinery from the books.
Note: If there is a gain or loss on the sale, an additional account called Gain on Sale of Machinery or Loss on Sale of Machinery would be involved, and the respective amount would be credited or debited accordingly.
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\( \sqrt[14]{6.3} \)need help showing my son how to solve this problem. explanation is key.
Divide 6.3 meters of leather
between 14
Then
6.3 meters= 630 cm
Now divide
630/14 =
Find m,c,d (max common divisor), between 63 and 14. Its 7.
divide by 7, both numerator and denominator
90/2 = 45
Then answer is , each piece is 45 cm long
Find 15.75 ÷ 0.25 using a Giant One.
Answer:
its 63
Step-by-step explanation:
Answer:
\( \frac{15.75}{0.25} = \frac{1575}{25} \\ = 63\)
...............................
An assembly line has 10 stations with times of 1, 2, 3, 4, …, 10, respectively. What is the bottleneck time?
The bottleneck time is 10, as this is the longest time for any station in the assembly line.
What is the bottleneck time?In this assembly line, the bottleneck time is 10. This is the amount of time it takes for a product to pass through the longest station, station 10, and is the limiting factor in the line's overall efficiency.This is referred to as the bottleneck time because it is the maximum time that can be achieved, regardless of how efficient the other nine stations are.The bottleneck time is an important concept in assembly line and production management, as it helps to determine the optimal speed of the line and the maximum output that can be achieved.If the bottleneck time is longer than necessary, it can lead to higher costs and slower production.To improve the bottleneck time, managers can look for ways to reduce the time it takes to complete each task, or reduce the number of tasks required.Additionally, managers may need to invest in additional resources, such as robots, to increase the speed of the bottleneck station.To learn more about The bottleneck time refer to:
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solve the equation. –9x + 1 = –x + 17. Multiple choice A) x=-8 B) x=-2 C) x=2 D) x=8
We divide both sides by 8, which yields -2 = x. This means that x is equal to -2, the correct answer is B) x = -2.
To solve the equation -9x + 1 = -x + 17, we can simplify and isolate the variable x.
First, let's combine like terms by adding 9x to both sides:
-9x + 9x + 1 = -x + 9x + 17
Simplifying further:
1 = 8x + 17
Next, let's isolate the variable x by subtracting 17 from both sides:
1 - 17 = 8x + 17 - 17
Simplifying again:
-16 = 8x
To solve for x, we divide both sides by 8:
-16/8 = 8x/8
-2 = x
Therefore, the solution to the equation -9x + 1 = -x + 17 is x = -2.
To solve the equation, we want to isolate the variable x on one side of the equation. We start by combining like terms. By adding 9x to both sides, we eliminate the variable terms on the left side, resulting in 1 = 8x + 17.
Next, we isolate the variable x by subtracting 17 from both sides. This simplifies the equation to -16 = 8x.
To solve for x, we divide both sides by 8, which yields -2 = x. This means that x is equal to -2. Therefore, the correct answer is B) x = -2.
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how do you do this equation ?
solving inequalities
8 ≤ 2x < x + 7
Answer:
4≤x<7
x€[4,7)
Step-by-step explanation:
8≤2x<x+7
=>8≤2x
=>2x<x+7
x≥4
x<7
therefore
4≤x<7
x€[4,7)
The graph of the function f(x) = –(x + 3)(x – 1) is shown below.
On a coordinate plane, a parabola opens down. It goes through (negative 3, 0), has a vertex at (negative 1, 4), and goes through (1, 0).
Which statement about the function is true?
A) The function is positive for all real values of x where x < –1.
B) The function is negative for all real values of x where x < –3 and where x > 1.
C) The function is positive for all real values of x where x > 0.
D) The function is negative for all real values of x where x < –3 or x > –1.
Answer:
The second statement is true.
Step-by-step explanation:
"The function is positive" means the graph is above the x-axis. The y values are positive.
"The function is negative" means the graph is below the x-axis. The y values are negative.
The first statement is false because there are values of x less than -1 where the graph is below the x-axis (example: x = -4).
The second statement says the graph is below the x-axis for values of x in two places: x to the left of -3, x to the right of 1. That's true.
The third statement is false because there are values of x to the right of 0 where the graph is below the x-axis.
The fourth statement is false. It is correct that the graph is below the x-axis for all x < -3, but for x > -1, the graph lies partly above and partly below the x-axis.
Answer:
B)
Step-by-step explanation:
f(x) = –(x + 3)(x – 1)
A) Untrue: the function is positive when -3 < x < 1 only
B) True : the function is negative when x < -3 and x > 1
C) Untrue: the function is positive when -3 < x < 1 only
D) Untrue: the function is negative when x < -3 and x > 1
8. Evaluate the expression under the given conditions. sin(theta − ϕ); tan(theta) = 5 12 , theta in Quadrant III, sin(ϕ) = − 3 10 10 , ϕ in Quadrant IV
_____
9. Evaluate the expression under the given conditions.
sin(theta + ϕ); sin(theta) = 8/17, theta in Quadrant I, cos(ϕ) = −√5 /5, ϕ in Quadrant II
(a) The expression under the conditions sin(θ - Ф) is (5√(91) - 36) / 130.
(b)The expression under the conditions sin(θ + Ф) is 7√5/85.
8.To evaluate the expression sin(θ - Ф), we need to use the the trigonometric identities:
sin(θ - Ф) = sin(θ) × cos(Ф) - cos(θ) × sin(Ф)
tan(θ) = 5/12 (in Quadrant III)
sin(Ф) = -3/10 (in Quadrant IV)
From the given information, we can determine the values of cos(theta) and cos(Ф) using the Pythagorean identity:
cos(θ) = 1 / √(1 + tan²(θ)) cos(Ф)
= √(1 - sin²(Ф))
Let's calculate these values:
cos(θ) = 1 / √(1 + (5/12)²)
= 12 / √(169)
= 12 / 13 cos(Ф)
= √(1 - (-3/10)²)
= √(1 - 9/100)
= √(91/100)
= √(91) / 10
Now we can substitute the values into the expression sin(θ - Ф):
sin(θ - Ф) = sin(θ) × cos(Ф) - cos(θ) × sin(Ф)
= (sin(θ) × cos(Ф)) - (cos(θ) × sin(Ф))
= (5/13) × (√(91)/10) - (12/13) × (-3/10)
= (5√(91) - 36) / 130
Therefore, sin(θ - Ф) = (5√(91) - 36) / 130.
9.To evaluate the expression sin(θ + Ф), we can use the trigonometric identities:
sin(θ + Ф) = sin(θ) × cos(Ф) + cos(θ) × sin(Ф)
sin(θ) = 8/17 (in Quadrant I)
cos(Ф) = -√5/5 (in Quadrant II)
We can determine the value of cos(θ) using the Pythagorean identity:
cos(θ) = √(1 - sin²(θ))
= √(1 - (8/17)²)
= √(1 - 64/289)
= √(225/289)
= 15/17
Now we can substitute the values into the expression sin(θ + Ф):
sin(θ + Ф) = sin(θ) × cos(Ф) + cos(θ) × sin(Ф)
= (8/17) ×(-√5/5) + (15/17) × (√5/5)
= -8√5/85 + 15√5/85
= 7√5/85
Therefore, sin(θ + Ф) = 7√5/85.
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Aâ _______ is any event combining two or more simple events.
A compound event is any event combining two or more simple events.
How to complete the blanksFrom the question, we have the following parameters that can be used in our computation:
combining two or more simple events.
As a general rule
When two or more simple events are combined, the result is a compound event
An example is selecting 1 in a die and head in a coin
This means that the statement that completes the blank is compound event
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What are binary integer variables?
a. Variables with any two values, a and b.
b. Variables with values 0 and 1.
c. Variables whose sum of digits is 2.
d. Variables with values between 0 and 1.
Binary integer variables are variables whose values consist of two values, 0 and 1.
Correct answer will be :- b. Variables with values 0 and 1.
These values are also known as bits, which are represented as 0 and 1 in computers. Binary integer variables are used in computing as a way to represent numbers, characters, and instructions. Binary integer variables are used to represent information in digital systems, because they can be used to represent any value with a single bit.
For example, a single bit can represent a number, letter, or instruction. Binary integer variables are also used in computer programming, as they can be used to represent boolean values, such as true and false. Additionally, they can be used to represent various types of data, such as numbers, characters, and images.
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PLZ HELP ME ‼️‼️‼️‼️
How many tacos will he sell?
Answer:
Step-by-step explanation:
x + y =35
3x + 2y = 90
-3x - 3y = -105
3x + 2y = 90
-y = -15
y = 15 tacos
x + 15 = 35
x = 20 sandwiches
20 sandwiches = x
15 tacos = y
16. (1 point) The inflation gap π
3
−π
1
is 0. 3 A> B< C= D incomparable with 17. (1 point) Does this policy create "divine coincidence"? A Yes B No
The answer to the question above is C which is equal to (=) is the symbol that represents the answer to the inflation gap π3−π1.
The correct option is-C
It is important to know that Inflation gap refers to the difference between actual inflation and target inflation. Inflation gaps are also associated with inflation targeting. Inflation targeting is a monetary policy where a central bank tries to keep inflation within a particular range by adjusting interest rates. If inflation is too high, the central bank will increase interest rates to cool off the economy and prevent prices from rising too quickly.
Inflation gaps are also associated with inflation targeting. Inflation targeting is a monetary policy where a central bank tries to keep inflation within a particular range by adjusting interest rates. If inflation is too high, the central bank will increase interest rates to cool off the economy and prevent prices from rising too quickly. If inflation is too low, the central bank will lower interest rates to encourage borrowing and spending, which will stimulate the economy and boost prices. According to the question, the inflation gap π3−π1 is 0.
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50 points! Correct answer will get brainliest. Random answers will be reported
Answer:
Yes, the polygons are congruent.
Step-by-step explanation:
ΔABC is translated 7 units down and 1 unit to the left, then reflected over the y axis.
Answer:
CongruentT₍₋₁,₋₇₎ ο ryStep-by-step explanation:
Plot the given points and observe the transformations
See the picture
We can observe that the triangle ABC was translated down 7 units and left 1 unit and then reflected over y-axis to give the triangle STU.
Translation is:
T₍₋₁,₋₇₎ ο ry A music store marks up the instruments it sells by 30%.
C. If the store paid $75 for a calorimeter and sold it tor $100, did the store mark up the price by 30%
Answer:
No, it was marked up more than 30%Step-by-step explanation:
Let's verify:
$75 + 30% = $75*1.3 = $97.5This is less than $100, so the answer is no
Find the gradients of the following pairs of coordinates
a)10/-5=-2
b) 6/-6 =-1
c) -10/1=-10
d)15/-6=5/-2
What is the slope of the linear function
y= -1/3x+1
is it
-1/3
1/3
-1
1
Answer:
-1/3
Step-by-step explanation:
This equation is in y-intersept form; y=mx+b, where m is the slope
Answer:
-1/3
Step-by-step explanation:
y = mx + b
m = slope
b = y-intercept
I'm sorry please help.
Solve the following system of equations.
x-3y=17
x+7y=-23
x=
y=
Answer:
-4y=40
y=-10
x-3(-10)=17
x-30=17
x=17+30
x=47
Step-by-step explanation:
Answer:
x= 5
y= -4
Step-by-step explanation:
x= 17+3y so you substitute what you got for x in so
17 +3y +7y = -23
10y=-40
y=-4 now you put -4 in for y in the first equation
x = 17 + (3 times -4)
x = 17 - 12
x=5
ABCD is a parallelogram. Find z.
Step-by-step explanation:
here is the answer Step-by-step for you
I hope you understand...
Please help i just need to know how to answer these kind of questions
Answer:
Since you didn't ask for the answer
Step-by-step explanation:
sec(∆)=1/cos(∆)
For the above diagram,cos(∆)=15/17
sec(∆)=1/(15/17)
NOTE:I replaced theta
Please help me I am really confused and need help with this.
Answer:
Step-by-step explanation:
y=10
Still need help sorry if im annoying
Answer:
ABX and EDX
Step-by-step explanation:
it is because they both have 2 sides and one angle. :D
Answer:
the first one
Step-by-step explanation: