[tex](\stackrel{x_1}{-4}~,~\stackrel{y_1}{-1})\qquad (\stackrel{x_2}{8}~,~\stackrel{y_2}{2}) \\\\\\ \stackrel{slope}{m}\implies \cfrac{\stackrel{rise} {\stackrel{y_2}{2}-\stackrel{y1}{(-1)}}}{\underset{run} {\underset{x_2}{8}-\underset{x_1}{(-4)}}} \implies \cfrac{2 +1}{8 +4} \implies \cfrac{ 3 }{ 12 } \implies \cfrac{1 }{ 4 }[/tex]
[tex]\begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-1)}=\stackrel{m}{ \cfrac{1 }{ 4 }}(x-\stackrel{x_1}{(-4)}) \implies y +1 = \cfrac{1 }{ 4 } ( x +4) \\\\\\ y+1=\cfrac{1 }{ 4 }x+1\implies {\Large \begin{array}{llll} y=\cfrac{1 }{ 4 }x \end{array}}[/tex]
a right cylindrical tank is full of water. the tank has a radius of 10 inches. how fast is the height of water in the tank changing if the water is being drained at 34 cubic inches per hour?
The answer is 3/25π m/h.
What is unitary method?The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units. What can be values and units.Let's say you go to the store to buy six apples. You are informed by the shopkeeper that he is offering 10 apples for Rs 100. In this instance, the value and the units are the price of the apples.Recognizing the units and values is crucial when using the unitary technique to a problem.Always write the items that need to be computed on the right side and the things that are known on the left side to simplify things. We are aware of the quantity of apples and the amount of money in the aforesaid problem.acc to our question-
With related rates, we need a function to relate the 2 variables, in this case it is clearly volume and height. The formula is:
v=πr²hThere is radius in the formula, but in this problem, radius is constant so it is not a variable. We can substitute the value in:V=π(5m)2hby solving the equation with the given valueshence,The answer is 3/25π m/h.
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What is the nature of the roots for y=2x^2- 5? Use the discriminant to determine the nature of the roots.
The nature of the roots for y=2x²- 5 is there are 2 distinct real roots.
What is the nature of roots?
The nature of the roots of the quadratic can fall into one of three categories depending on the value of the discriminant
Δ > 0 means there are 2 distinct real roots.
Δ = 0 means there are 2 equal real roots or 1 distinct real root.
Δ < 0 means there are no real roots, but 2 complex roots.
Here,
The discriminant of a quadratic is the expression inside the radical of the quadratic formula.
b² - 4ac
Substitute the values of a, b, and c.
Evaluate the given equation to find the discriminant, we get
= 0 - 4×2×(-5)
= 41
> 0
Since the discriminant is greater than 0
Hence, there are 2 distinct real roots.
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For a ride on a rental scooter, Eric paid an $8 fee to start the scooter plus 6 cents per minute of the ride. The total bill for Eric's ride was $17.84. For how many
minutes did Eric ride the scooter?
minutes
Answer:
164 minutes
Step-by-step explanation:
$8 + $0.06m = $17.84
To isolate the m, first bring the eight to the other side
0.06m = 9.84
then divide both sides by 0.06
m = 164
E
<
15
Question 15/15
0
B) (-6,-5)
(6,5)
SUBMIT
BOOKMARK
Point G, located at (-5, 6) is rotated 270° counterclockwise. Find the coordinates of G' after the rotation.
(5,-6)
The coordinates of G' after the rotation = (6, 5)
In this question we have been given a point G, located at (-5, 6) is rotated 270° counterclockwise.
We need to find the coordinates of G' after the rotation.
a point (-5, 6) is located in the second quadrant.
First 90° counterclockwise rotation gives (-6, -5) because x & y are interchanged and in Quadrant III both coordinates will be negative.
Second 90° counterclockwise rotation yields (5,-6) because x & y are interchanged and in Quadrant IV the y coordinate will be negative.
Last 90° counterclockwise rotation yields (6, 5) because x & y are interchanged and in Quadrant I both coordinates will be positive.
Therefore, the coordinates of G' after the rotation = (6, 5)
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outside temperature over a day can be modeled as a sinusoidal function. suppose you know the temperature varies between 60 and 70 degrees during the day and the average daily temperature first occurs at 9 am. how many hours after midnight, to two decimal places, does the temperature first reach 63 degrees?
The 4.89 hours after midnight did the temperature first hit 63 degrees.
What is sinusoidal function ?A sinusoidal function can be used to mimic the daily variation in outdoor temperature. Assume you are aware that the daily average temperature starts at 9 am and swings between 60 and 70 degrees throughout the day.
We have to find to two decimal places, how many hours after midnight did the temperature first hit 63 degrees.
Max T=70 and Min T=60
D = (Max + Min)/2
= 70+60/2
= 65
A = Max- D
= 70 - 65
= 5
Since,
Period is 24 hours,
So,
W = 2π/24
= π/12
The function will be:
T(t) = 5 Sin (π/12(t-C)) + 65
Given average temperature occurs at 8 am so,
T(9)=65
Solving this we get
C=9
Hence,
T(t)= 5Sin(π/12( t-9))+65
Now,
We need to find t such that T(t)=63
63=5Sin(π/12( t-9))+65
t = 4.89 hours.
Therefore, The 4.89 hours after midnight did the temperature first hit 63 degrees.
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Jackie old lemonade and made $24 while Liana old lemonade
and made $36. Write the ratio of money made by Jackie and
Liana by elling lemonade
The Ratio of money made by Jackie and Liana by selling lemonade is 2/3
What does a math ratio mean?
Definitions: If b is not equal to 0, then an ordered pair of numbers a and b, denoted as a/b, is a ratio. A proportion is an equation that equalizes two ratios. You could, for instance, write the ratio as follows: 1: 3 in the case of 1 boy and 3 girls.
How is a ratio calculated?
By typically dividing two figures, ratios contrast them. If you were comparing one data point (A) to another data point, your formula would be A/B. (B). You are multiplying information A by information B, as indicated by this. For instance, if A is 5 and B is 10, your ratio will be 5/10.
Given that
Jackie earn = $24
Liana earn = $36
Ratio of their earning = 24/36 = 2/3
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The possible rational roots are ±1, ±3, ±5, ±9, ±15, and ±45.
The actual roots ordered from least to greatest are
and
.
The actual roots ordered from least to greatest is -45, - 15, -9, - 5, - 3, - 1, +1, +3, +5, +9, +15, and +45
What are rational roots?Rational roots are roots of a quadratic equation which can be expressed as a ratio or are elements of rational numbers.
How to the actual roots ordered from least to greatest?Since we have that the possible rational roots are ±1, ±3, ±5, ±9, ±15, and ±45.
We list the actual roots as follows
+1, -1, +3, -3, +5, -5, +9, -9, +15, - 15, +45 and -45
Since we require the actual roots from least to greatest knowing that the largest negative number is the least and tha largest positive number is the greatest, rearranging, we have
-45, - 15, -9, - 5, - 3, - 1, +1, +3, +5, +9, +15, and +45
So, the actual roots are -45, - 15, -9, - 5, - 3, - 1, +1, +3, +5, +9, +15, and +45
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What is the area of the figure?
17.5 yd2
20.0 yd
19.1 yd
35.0 yd2
The area of the triangle is A. 17.5yd².
How to find the area?Using this formula to find the area
Area = 1/2 ( b × h)
Where:
b = base = 5
h = Height = 7
Hence,
Area = 1/2 (5 ×7)
Area = 1/2 (35)
Area = 1× 35/2
Area = 35/2
Area = 17.5yd²
Therefore the correct option is A.
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PLSS HELP EXTRMELY URGENT WILL GIVE BRAINLIEST!
2 parents and their 7 children are taking family photos. Seats are arranged in two rows
so that the first row has 4 chairs and the back row has 5 chairs. If exactly two children
must be sitting in the first row, how many ways can the seating be arranged?
Answer: .................................................
how many ways can the seating be arranged?
answer = 128 ways
correct or what???
3/8 - 5/6 Please put a step by step
Answer:
(-11/24)
Step-by-step explanation:
3 5
------- - -------
8 6
3(3) 5(4)
------- - -------
8(3) 6(4)
9 20 - 11
------- - ------- = -------
24 24 24
I hope this helps!
20 PIONTS
Suppose you have a $6-off coupon at a fabric store. You buy fabric that costs $9.50 per yard. Write an equation that models the total amount of money y you pay if you buy x yards of fabric. What is the graph of the equation?
The equation that models the total amount of money y you pay if you buy x yards of fabric is y = 9.50x - 6
Given,
You have a coupon for a $6 discount at a fabric shop. You purchase fabric for $9.50 per yard.
We have to find an equation that models the total amount of money y you pay if you buy x yards of fabric.
Here,
The equation for the situation be like;
y = 9.50x - 6
Where,
y is the total amount paid
x is the number of yards of fabric you bought
That is,
The equation that models the total amount of money y you pay if you buy x yards of fabric is y = 9.50x - 6
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write a problem that could be represented by the equation 5n - 6 = 19
Which are correct representations of the inequality –3(2x – 5) < 5(2 – x)? Select two options. x < 5 –6x – 5 < 10 – x –6x + 15 < 10 – 5x A number line from negative 3 to 3 in increments of 1. An open circle is at 5 and a bold line starts at 5 and is pointing to the right. A number line from negative 3 to 3 in increments of 1. An open circle is at negative 5 and a bold line starts at negative 5 and is pointing to the left.
An open circle at 5 and a bold line starting at 5 and pointing to the right (>) is the correct representations of the inequality
How to identify the correct representations of the inequality?An inequality compares two values, showing if one is less than, greater than, or simply not equal to another value e.g 5 < 6, x ≥ 2, etc.
Given: the inequality –3(2x – 5) < 5(2 – x)
First, we have to solve for x in the inequality
–3(2x – 5) < 5(2 – x)
Clear the parenthesis:
-6x + 15 < 10 - 5x
Collect like terms:
-6x + 5x < 10 - 15
-x < -5
Divide both sides by -1:
x > 5 ( Note: Divide both sides by -1 will change the < to > )
This is what will determine our answer
Since our answer is x > 5. An open circle will be at 5 and a bold line starts at 5 and is pointing to the right (>)
Therefore, the correct representations of the inequality is an open circle is at 5 and a bold line starts at 5 and is pointing to the right r
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The line graphed below has a slope equal to -2. The point (3, 28) lies on
this line as shown. Determine the y-value on this line when the x-value is
equal to 11.
Answer:
y = 12
Step-by-step explanation:
We'll use the form of an equation of a straight line of y=mx+b, where m is the slope and b the y-intercept (the value of y when x=0).
We are told the slope, m, is -2.
That leads to: y = -2x + b
y = -2x + b
B, the y-intercept, can be found by using the given point (3,28) in the equation (it falls on the line, so must be a valid solution to the equation. Use the given x and y in the equation and solve for b:
y = -2x + b
28 = -2*(3) + b
28 = -6 + b
b = 34
The equation is y = -2x + 34
Use this to find y when x = 11:
y = -2(11) + 34
y = -22 + 34
y = 12
y is 12 when x is 11
See the attached graph.
if you were able to add the numbers 26 and 41 in your head, it is assumed that you would be doing this in your:
If you were able to add the numbers 26 and 41 in your head, it is assumed that you would be doing this in your working memory.
Define working memory.A cognitive apparatus known as working memory has a finite capacity and can only temporarily store information. It is crucial for reasoning, decision-making, and behaviour direction. When working on a long-division problem, kids use their working memory abilities to retain the long-division steps. Other instances include keeping track of complicated instructions, taking notes in class, recalling an argument while someone else is speaking, or performing mental calculations. In contrast to long-term memory, which stores a large amount of knowledge over a lifetime, working memory is the little amount of information that may be kept in mind and used to carry out cognitive tasks. One of the most often used concepts in psychology is working memory.
Given,
If you were able to add the numbers 26 and 41 in your head, it is assumed that you would be doing this in your:
d) Working memory
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help meeeeeeeeeeeeeeeeeee pleaseeee rn rnnnnnnnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
help meeeeeeeeeeeeeeeeeee pleaseeee rn rnnnnnnnnnn!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
x3+3x2−10x+24
Factorice el polinomio
The expression x³ + 3x² - 10x + 24 cannot be factorized
How to factorize the polynomial?From the question, the polynomial is given as
x3+3x2−10x+24
Rewrite the polynomial properly
So, we have the following representation
x³ + 3x² - 10x + 24
Next, we represent the above expression on a graph
From the attached graph, we can see that the polynomial expression only cross the x-axis at x = -5.569
This implies that the expression cannot be factored
So, we cannot further rewrite the given expression
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<
>
<
In the following diagram, BC is parallel to DE.
What is the measure of Zx?
Angles are not necessarily drawn to scale.
B
D
F
54°
105°
A
E
And please explain how I get the answer pls
The value of Angle DAF, x is 21°
Given,
Line BC parallel to line DE
The value of Angle ABC = 54°
The value of Angle BAC = 105°
We have to find the value of angle DAF
Here,
Angle DAF = x
Now,
Angle ABC = Angle DAB (Alternate interior angles)
So,
Angle DAB = 54°
Then,
Angle DAF, x = 180 - (105 + 54) (Linear pair of angles)
Linear Pair of Angles;
When two lines cross at one point, a linear pair of angles is created. If the angles follow the intersection of the two lines in a straight line, they are said to be linear. A linear pair's total angles are always equal to 180°.
That is,
Angle DAF, x = 180 - 159
Angle DAF, x = 21°
Therefore,
The value of Angle DAF, x is 21°
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A
If m ZABD = 75° and m/ABC = 40°,
then mZCBD = [?]°
We see BC is in the middle of the lines AB and BD, therefore mABC + mCBD = mABD.
We're given mABD = 75, mABC = 40.
Therefore, mCBD = mABD - mABC = 75 - 40 = 35.
Answer:
∠CBD = 35°
Step-by-step explanation:
We are told in the question that m∠ABD = 75° and m∠ABC = 40°. We are then asked what the value of m∠CBD is.
As we can see from the diagram, ∠ABD is made up of the angles ABC and CBD. Therefore:
∠ABD = ∠ABC + ∠CBD
⇒ 75° = 40° + ∠CBD
⇒ 75° - 40° = 40° + ∠CBD - 40° [
⇒ 35° = ∠CBD
∴ ∠CBD = 35°
Jenna and Becca were both selling cookies door to door. Jenna sold 8 boxes of cookies for every 3 boxes of cookies Becca sold. Combined,they sold a total of 385 boxes of cookies. How many boxes did each girl sell?
Suzanne's average daily balance for last month was x dollars. The finance
charge was y dollars.
a. What was the monthly percentage rate?
b. What was the APR?
Part a: Monthly percent rate = y/x
Part b: APR = y/x × 12.
What is meant by the term APR?The annual interest produced by a sum that is paid to investors or charged to borrowers is referred to as the annual percentage rate (APR). APR is a percentage that expresses the actual annual cost of borrowing money over the course of a loan or the income from an investment. An APR might not accurately represent the cost of borrowing but since lenders have some latitude in determining it, excluding some fees.APR and APY (annual percentage yield), a computation that takes interest compounding into account, should not be confused.For the given question;
Average daily balance sheet of Suzanne's is x dollars.
Finance charges = y
Part a: monthly percentage rate
Finance charge = Monthly percent rate × Average daily balance
Monthly percent rate = Finance charge/Average daily balance
Monthly percent rate = y/x
Part b: APR
The annual percentage rate (APR) is calculated by dividing the periodic interest rate even by number of periods in the year that it was in effect. The number of times the rate is applied to a balance is not stated.Thus,
For 12 months.
APR = y/x × 12
Thus, the value of APR for the period of 12 months is APR = y/x × 12 .
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PLEASE HELP! WILL GIVE BRAINLEST! IM BEGGIN YOUUUU. It’s just creative writing not english work!
which OF THE Following have infinitely many solutions? Choose all answers that apply, A -76x+76=-76x+76 B 76x+76=76x+76 C76x+76=-76x+76 D -76x+76=76x+76. please really need help
The equation which has infinitely many solutions from the given answer choices is; Choice A: -76x+76=-76x+76 and Choice B: 76x + 76 = 76x + 76.
Equations with infinitely many solutions.It follows from the task content the the equation with infinitely many solutions among the given answer choices is to be determined.
An equation of the type; a(1)x + b(1) = a(2)x + b(2) is said to have infinitely many solutions if; a(1) = a(2) and b(1) = b(2).
Hence, the equations which have infinitely many solutions among the given answer choices are; Choice A: -76x+76=-76x+76 and Choice B: 76x + 76 = 76x + 76.
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Multiply.
4 1/3 x 2 3/4
7 1/12
8 1/4
11 11/12
i dont know
Complete the two column proof.
The two-column table to prove ∠ABC ≅ ∠DBE using the angle addition postulate is presented as follows;
Statements [tex]{}[/tex] Reasons
1. ∠ABD is a right angle [tex]{}[/tex] 1. Given
∠CBE is a right angle
2. ∠ABD are complementary [tex]{}[/tex] 2. Definition of complementary angles
3. ∠CBE are complementary [tex]{}[/tex] 3. Definition of complementary angles
4. ∠ABC ≅ ∠DBE [tex]{}[/tex] 4. Congruent complements theorem
What is the angle addition postulate?The angle addition postulate states that the when two angles are placed side by side such that they share a common ray, the measure of the angle formed by the two angles is the sum of the measure of the individual angles.
∠ABD = ∠ABC + ∠CBD (angle addition postulate)
∠ABD = 90° (definition of right angle)
∠ABC + ∠CBD = 90° (substitution property of equality)
∠ABC and ∠CBD are complementary (definition of complementary)
Similarly
∠CBE = ∠CBD + ∠DBE (angle addition postulate)
∠CBE = 90° (definition of right angle)
∠CBD + ∠DBE = 90° (substitution property of equality)
∠CBD and ∠DBE are complementary (definition of complementary)
∠ABC is a complementary angle to ∠CBD and ∠DBE is a complementary angle to ∠CBD
Therefore;
∠ABC is congruent to ∠DBE (congruent complements theorem)
∠ABC ≅ ∠DBEThe congruent complement theorem states if an angle ∠A is a complement to an angle ∠C and if an angle ∠B is also a complement of angle ∠C then ∠A is congruent to ∠B.
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cosec 2A + cosec 4A = cot A - cot 4A
The given expression is proved by the necessary changes.
cosec 2A + cosec 4A = cot A - cot 4A
Cosec 2 A + Cot 4 A = Cosec 4 A - Cot 2 A
Taking LHS :
⇒Cosec 2 A + Cot 4 A
⇒Cosec 2 A + ( Cot 2 A )2
⇒Cosec 2 A + ( Cosec 2 A - 1 )2 ( we know:1+ Cot 2 θ = Cosec 2 θ )
⇒Cosec 2 A + Cosec 4 A + 1 - 2 Cosec 2 A
⇒ Cosec 4 A + 1 - Cosec 2 A
⇒ Cosec 4 A + 1 - ( 1 + Cot 2 A)
⇒ Cosec 4 A + 1 - 1 - Cot 2 A
⇒ Cosec 4 A - Cot 2 A
or cosec2A+cosec4A=cotA-cot4A
Hence Proved.
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Find the missing side of this right
triangle.
X
18
14
X =
✓[?]
Enter the number that belongs in the green box.
Answer:
128
Step-by-step explanation:
Using the Pythagorean theorem,
[tex]14^2+x^2=18^2 \\ \\ 196+x^2=324 \\ \\ x^2=128 \\ \\ x=\sqrt{128}[/tex]
A pencil is 712 inches long.
How long is the pencil in centimeters?
1 inch =2.54 centimeters
do you mean 712 or 7.12?
If for 712 it is 1808.48
if for 7.12 it is 18.0848
in a study, physicians were asked what the odds of breast cancer would be in a woman who was initially thought to have a 1% risk of cancer but who ended up with a positive mammogram result (a mammogram accurately classifies about 80% of cancerous tumors and 90% of benign tumors.) what is the probability of a woman having a malignant (cancerous) tumor in her breast if she has a positive mammogram result? round to 3 decimal places as needed.
The probability that a woman has a malignant tumor in her breast is 7.5%. ie 75
Let + = mammogram result is positive
B = tumor is benign
M = tumor is malignant.
Note that Bc = M.
given that P(M) = .01,
so P(B) = 1 − P(M) = 0.99.
We are also given the conditional probabilities
P(+ | M) = .80 and
P(− | B) = .90, where the event − is the complement of +
P(+ | B) = .10
Bayes’ formula:-
P(M | +) = P(+ | M) P(M) / (P(+ | M)P(M) + P(+ | B)P(B))
= 0.80 × 0.01 / (0.80 × 0.01 + 0.10 × 0.99)
=0.075
So the chance would be 7.5%. ie 75
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PLEASE HELP ASAP NEEDED SOON
They will require 4 (4/11) days to complete the remaining work together.
Time is the duration during which any activity or work happens or continues. Work is a task or set of activities to achieve a certain result
It takes Ann alone 10 days to translate a document.
Ann's work in one day = 1/10
In 2 days = 2 / 10
Work left = 8 / 10
Ben alone now takes 12 days to translate a document.
Ben's work in one day = 1/12
We will now use addition.
Combined work of both Ann and Ben in 1 day = 1 / 10 + 1 / 12 = 11 / 60
Time taken to complete the rest of the work = 8 / 10 ÷ 11 / 60
= 48 / 11 = 4.4 days.
As a result, they need 4 (4/11) days to finish the remaining work together.
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