Answer:
To subtract the second polynomial from the first, we need to distribute the negative sign to all terms inside the second set of parentheses, and then combine like terms:
(8s^2 - 3s - 3) - (-4s^2 + s - 13)
= 8s^2 - 3s - 3 + 4s^2 - s + 13 (distributing the negative sign)
= 12s^2 - 4s + 10 (combining like terms)
The resulting polynomial is already in standard form because the terms are arranged in descending order of degree. Therefore, the final answer in standard form is:
12s^2 - 4s + 10
Write a quadratic function for the area of the figure. Then, find the area for the given value of x. x = 20 A quadratic function for the area of the figure is A(x) = (Simplify your answer.) ... X
answer: x= 20x
Step-by-step explanation: 2+2 is 4, 4+4 is 8, quick maths
A company estimates that 0.8% of their products will fail after the original warranty period but within 2 years of the purchase, with a replacement cost of $200.
If they offer a 2 year extended warranty for $22, what is the company's expected value of each warranty sold?
$
Therefore , the solution of the given problem of percentage comes out to be the firm expects that each warranty it sells will be worth $1.41.
What is percentage?In statistics, "a%" is used to refer to a figure or number that is expressed as a percentage of 100. Additionally rare are the forms that "pct," "pct," or "pc". It is typically represented by the symbol "%," though. Additionally, there are not any indicators and the proportion of each item to the overall amount is flat. Since percentages typically add up to 100, they are essentially integers. Either the expression "fraction" or the symbol for percentage (%) .
Here,
The price to substitute each item is $200. The anticipated price for each component is thus:
Expected cost per product equals Replacement cost x Failure Probability
=> Cost per product anticipated = 0.008 x $200
=> Expected price per item is $1.60.
So, the following is the anticipated value of each warranty sold:
Expected worth of the warranty = Failure rate x (Replacement cost - Cost of warranty)
=> Expected guarantee value = 0.008 * ($200 - $22 - $1.60).
=> Expected guarantee value = 0.008 * $176.40
=> Expected warranty worth is $1.41
As a result, the firm expects that each warranty it sells will be worth $1.41.
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70% of 140 is what value? 20 70 84 98
Answer:
Step-by-step explanation:
70% of 140 is equal to 0.7 x 140 = 98. Therefore, the answer is 98.
Answer:
98
Step-by-step explanation:
70% can also be written as 0.7, therefore, we can multiply 140 by 0.7.
140 x 0.7 = 98.
Amiya jogged 1/3 of a mile, and stopped to rest. Then, she jogged another 1/3 of a mile. How far did Amiya jog? Draw to solve.
Answer:
To solve the problem, we can draw a number line and mark off the distances that Amiya jogged.
We start at 0 and mark off 1/3 of a mile to represent the distance Amiya jogged initially. Then we mark off another 1/3 of a mile to represent the distance she jogged after resting.
The total distance Amiya jogged is the distance from the starting point (0) to the end point (2/3), which is 2/3 of a mile.
Therefore, Amiya jogged a total of 2/3 of a mile.
Taking it further, to convert miles to meters, we need to know that 1 mile is equal to 1609.34 meters (approximately).
So to find out what 2/3 of a mile is in meters, we can multiply 2/3 by the conversion factor:
2/3 mile x 1609.34 meters/mile = 1072.89 meters
Therefore, 2/3 of a mile is approximately equal to 1072.89 meters.
Mr. Valdez has $95 in his budget to buy paint brushes and
boxes of colored pencils. He will buy an equal number of
each art supply. The cost of each item is shown in the table.
The inequality 3n+ 5n at least 95 can be used to find the
number of each item that he can buy. How much money will
Mr. Valdez have left in the budget after buying the greatest
number of paint brushes and colored pencils?
Answer:
3n + 5n = 8n = 95
n = 11
$95 - $88 = $7
(11 paint brushes, 11 boxes of colored pencils)
A fizzy drink comes in a rigid can (its volume remains constant). If the can is left in a hot car, what will happen to the pressure of the gas inside the can as the temperature increases? Explain what is happening to the gas particles. Which gas law does this follow?
its for chemistry class not for math
Therefore , the solution of the given problem of unitary method comes out to be the gas particles inside the can will acquire kinetic energy and collide with its walls more frequently, increasing pressure.
A unitary technique is what ?The objective can be accomplished by variable use of what has been clearly learned thus far, implementing advantage of this worldwide convenience, and incorporating all essential components from prior flexible research that used a specific approach. If the anticipated claim outcome actually occurs, it will be feasible to get in connection with the entity once more; if not, both crucial systems will undoubtedly miss the statement.
Here,
The pressure of the gas inside the can will rise as the temperature rises. This is due to the fact that the gas particles inside the can will accelerate and acquire kinetic energy, causing them to collide with the can's walls more frequently and more violently.
The pressure rises as a result of these collisions' greater power per unit area.
The Ideal Gas Law, which says that PV = nRT, where P is tension, V is volume, n is the number of moles of gas,
R is the optimal gas constant, and T is temperature in Kelvin, describes this relationship between pressure and temperature.
In conclusion, the Ideal Gas Law predicts that as the temperature inside the vehicle rises, the gas particles inside the can will acquire kinetic energy and collide with its walls more frequently, increasing pressure.
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Sophia and morgan are interested in recycling they each weight their families daily recycling for 2 weeks the dot plots show their data Without calculating Sophia says that the Mad for Morgan's data is Sophia correct? Iready check
No, Sophia is not correct. While we can see that Morgan had more total weight overall in their two week recycling data, we can't say for sure that Morgan's data is greater without calculating the exact numbers.
What is recycling data?Recycling data is information collected from the recycling process that is used to measure and analyze the effectiveness of the process. This data can include the type and amount of materials collected, the location of collection, the method of collection, and the end-use of recycled materials. Recycling data can be used to help identify areas for improvement, develop innovative recycling solutions, and evaluate the impact of current programs. It can also be used to understand consumer behavior and inform decisions on waste management. By collecting and analyzing recycling data, governments, businesses, and organizations can better understand how to reduce waste and increase the reuse and recycling of materials.
We need to calculate the means of the data to determine which one is larger.
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prove this question in the image please
The parallelogram ABCD's congruency can be proven using Side-Angle-Side (SAS) congruence theorem.
How to prove congruency?Prove that ΔABC ≅ ΔDCB using the Side-Angle-Side (SAS) congruence theorem.
Given that ABCD is a parallelogram, AB || CD and BC || AD. Therefore, ∠ABC ≅ ∠DCB and ∠ACB ≅ ∠DCA because they are corresponding angles.
AB ≅ CD and BC ≅ AD because opposite sides of a parallelogram are congruent.
Lastly, AC ≅ AC because it is a shared side between the two triangles.
Therefore, the following congruent parts:
∠ABC ≅ ∠DCB (by corresponding angles)
AB ≅ CD (by opposite sides)
BC ≅ AD (by opposite sides)
AC ≅ AC (shared side)
The SAS congruence theorem concludes that ΔABC ≅ ΔDCB.
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Image transcribed:
Prove ΔABC ≅ ΔDCB
Note: For questions 13–21, remember to show all of the steps that you use to solve the problem. You can use the comments field to explain our work. Your teacher will review each step of your responses to ensure your receive proper credit for your answers.
Note: Your teacher will grade your response to this question to ensure you receive proper credit for your answer.
Complete the proof.
Given: AB · BE = CB · BD
Prove: ΔABC ~ ΔDBE
PLEASE HELP! LAST ONE! ILL GIVE BRAINLIST AGAIN IF I CAN!
We have shown that ΔABC ~ ΔDBE because the corresponding angles are congruent and the corresponding sides are proportional.
Does a ratio imply equality?The relationship between two quantities is constant for all values when they are proportional, which indicates that as one quantity rises, the other rises as well.
We must demonstrate that the respective angles of the two triangles are congruent and the corresponding sides are proportionate in order to demonstrate that ABC DBE.
To begin with, we can relate the sides of the two triangles using the following equation AB BE = CB BD. Let x, y, and z all be equal to AB. Next, we have:
x · BE = y · z (substituting the given values)
y/x = BE/BD (dividing both sides by BD and then by x)
Now, we can utilise the knowledge that a triangle's angles sum to 180 degrees to get the length of ABC:
ACB - 180° = ABC (from the given triangle ABC)
ABC = 180 degrees - BDE (corresponding angles)
The measure of BDE can then be determined using the connection between the sides that we discovered earlier:
y/x = BE/BD (from above)
BE/DE = y/(x+z) (substituting z = BD)
BDE is equal to tan(y/(x+z)) Inverse tangent is used.
Now, we can use the fact that a triangle's angles sum to 180 degrees to determine the size of the DBE:
DBE = 180°, BDE, and BED
DBE is equal to 180 - tan(y/(x+z)) - ∠BED (substituting the angle measure we just found) (substituting the angle measure we just found)
DBE is equal to 180° - tan(y/(x+z)) - tan(y/z) (using inverse tangent again)
tan(z(y+x)/(xz-yz)) = DBE (using the tangent of the sum formula)
In order to demonstrate that the sides of the two triangles are proportional, we can once more use the relationship between the sides:
BE/BD = AB/CB (from the given equation and simplification)
Y/x = AB/CB (from the relationship between the sides)
As a result, we have demonstrated that ABC DBE since the associated angles and sides are congruent and proportionate, respectively.
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All I need to know is the answer to this problem so I can compare mine.
Answer:
we will do TanA = perpendicular / Base
A = 35°
Tan 35° = 217 / W
value of Tan 35° is approx = 0.7
0.7 = 217/ W
W = 217 / 0.7
W = 310
*PLEASE HELP ME!*
Explore
Here is a number pyramid puzzle. Fill in the blanks so that each number is the product of the two numbers directly beneath it.
The blanks of the number pyramid puzzle can be filled with numbers calculated below.
How fill in the blanks of the number pyramid puzzle?
A number pyramid puzzle is a type of mathematical puzzle where a pyramid-shaped grid of numbers is given, with some of the numbers missing.
Check the attached image for labeling. Since each number is the product of the two numbers directly beneath it. We can say:
m = -4 * 0.5 = -2
k = 0.5 * 1/8 = 1/16
x * (-1/8) = 8
x = 8/(-1/8)
x = -64
y = x * 1/8
y = -64 * 1/8
y = -8
j = m * k
j = -2 * 1/16 = -1/8
p = -48 * m
p = -48 * (-2) = 96
n = y * 8
n = -8 * 8 = -64
t = p * j
t = 96 * (-1/8) = -12
w = -1/2 * n
w = -1/2 * (-64) = 32
c = t * 1/16
c = -12 * 1/16 = -3/4
u = 1/16 * w
u = 1/16 * 32 = 2
d = c * u
d = -3/4 * 2 = -3/2
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The sum of twice a number,n, and 14 is 30. Write an equation that models this statement.Then explain how you might use reasoning to find the value of n.
Answer:
2n + 14 = 30
Step-by-step explanation:
Since you know that 2n + 14 = 30, we can determine the values by first subtracting 14 from 30. Our equation would then be 2n = 16. Divide 2 from both sides and n = 8.
This model represents the total on the top and the 2 parts on the bottom.
is AP stats easy???????
not to sure about that try researching that
depends on ur teacher for me its really hard but the material wouldnt be too bad if you have a good teacher. it contains a lot of logistics and specific wording but memorization is key
help plsssss… i don’t understand & or know how to do it
Answer: sorry I can't see it.
Step-by-step explanation:
PLEASE HELP! Find missing side lengths of B and C. Explain
Answer:
b=7 & c=7√2
Step-by-step explanation:
b=7 as it is an isosceles triangle
now using Pythagoras theorem,
(c)^2= (7)^2+(7)^2
⇒(c)^2= 49+49
⇒(c)^2= 98
⇒c= √98
⇒c=7√2
Answer:
b = 7c = 7√2Step-by-step explanation:
You want the missing side lengths in an isosceles right triangle with one side given as 7.
Isosceles right triangleThe two congruent acute angles tell you this right triangle is isosceles. That means sides 7 and b are the same length:
b = 7
The hypotenuse of an isosceles right triangle is √2 times the side length:
c = 7√2
__
Additional comment
You can figure the hypotenuse using the Pythagorean theorem if you haven't memorized the side relations of this "special" right triangle.
c² = 7² + b²
c² = 7² +7² = 2·7²
c = √(2·7²) = 7√2
The side length ratios for an isosceles right triangle (angles 45°-45°-90°) are 1 : 1 : √2.
The other "special" right triangle is the 30°-60°-90° triangle, which has side length ratios 1 : √3 : 2.
Is ∆PQR a right triangle? Explain
Answer:
Yes, ∆PQR is a right triangle.
Step-by-step explanation:
A right triangle has one right angle, which is 90°. This triangle has one right angle, so it is a right triangle.
Elena wants to tile the top of a circular table. The diameter of the tabletop is 28 inches. What is the perimeter?
Answer:
86.96 inches.
Step-by-step explanation:
C = 2πr
d = 2r
Solving for C
C = πd = π · 28 ≈ 87.96459 inches
Simplificacion de 18/25
Answer:
Step-by-step explanation:
Ici, nous allons réduire la fraction 18/25 aux termes les plus bas et la convertir en un nombre fractionnaire, si nécessaire.
Dans la fraction 18/25, 18 est le numérateur et 25 est le dénominateur.
On commence par trouver le plus grand diviseur commun de 18 et 25, qui est 1. Ensuite, on divise 18 et 25 par le plus grand diviseur commun pour obtenir la plus petite expression, écrite comme suit :
(18 ÷ 1) / (25 ÷ 1)
= 18/25
PLS HELP MEEEEEEEEEEEEEEEEEE I CAN'T ANSWER
A. Tell whether distance, speed, or time is asked in each given situation.
_____1. How long will it take Zihann to arrive at school if she walks a constants 2 kilometers per hour?
_____2. How far do you need to travel at an average speed for 5 hours?
_____3. How fast should you travel to arrive at your destination that is 2.5 hours away?
_____4. If Carla travels a distance of 150 kilometers and arrive after 3 hours, how fast did she drive?
_____5. If Alwyn drove at an average speed to travel a certain distance, how long did it take him to travel?
Just number 9 with work
The answer of the given question based on rational parent function , to identify a correct transformation of the function, The correct answer choice is (c) Left 5.
What is Function?A function is mathematical relationship that assigns unique output value for each input value. It describes relationship between two variables, where output value is dependent on input value. A function can be represented by equation, a graph, or table. In its simplest form, function takes input value, performs a specified operation on that value, and produces corresponding output value.
Functions are used to model real-world phenomena, to solve problems, and to analyze and understand complex systems. They are fundamental concept in mathematics and are used in wide variety of fields, like science, engineering, economics, and finance.
The given equation is y = 12/(x + 5), which represents the rational parent function. To identify a correct transformation of the function, we can consider the effect of each transformation on the parent function.
a) Vertical reflection: This transformation would change the sign of the function, resulting in y = -12/(x + 5). This is not the given equation, so it is not a correct transformation.
b) Vertical stretch by 12: This transformation would multiply the function by 12, resulting in y = 12(12/(x + 5)) = 144/(x + 5). This is not the given equation, so it is not a correct transformation.
c) Left 5: This transformation would shift the function to the left by 5 units, resulting in y = 12/(x + 10). This is a correct transformation of the function, as it represents a horizontal shift of 5 units to the left.
d) Down 5: This transformation would shift the function down by 5 units, resulting in y = 12/(x + 5) - 5. This is not the given equation, so it is not a correct transformation.
Therefore, the correct transformation of the rational parent function as described by the given equation is a horizontal shift of 5 units to the left. The answer choice is (c) Left 5.
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The correct transformation of the function on rational parent function as described by the given equation. The correct answer choice is (c) Left 5.
What is Function?A function is mathematical relationship that assigns unique output value for each input value. It describes relationship between two variables, where output value is dependent on input value. A function can be represented by equation, a graph, or table. In its simplest form, function takes input value, performs a specified operation on that value, and produces corresponding output value.
The given equation is y = 12/(x + 5), which represents the rational parent function. To identify a correct transformation of the function, we can consider the effect of each transformation on the parent function.
a) Vertical reflection: This transformation would change the sign of the function, resulting in y = -12/(x + 5). This is not the given equation, so it is not a correct transformation.
b) Vertical stretch by 12: This transformation would multiply the function by 12, resulting in y = 12(12/(x + 5)) = 144/(x + 5). This is not the given equation, so it is not a correct transformation.
c) Left 5: This transformation would shift the function to the left by 5 units, resulting in y = 12/(x + 10). This is a correct transformation of the function, as it represents a horizontal shift of 5 units to the left.
d) Down 5: This transformation would shift the function down by 5 units, resulting in y = 12/(x + 5) - 5. This is not the given equation, so it is not a correct transformation.
Therefore, the correct transformation of the rational parent function as described by the given equation is a horizontal shift of 5 units to the left. The answer choice is (c) Left 5.
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21 students in the class like chocolate ice cream. this is 75% of the class. how many students are in the class?
Answer:
28 people
Step-by-step explanation:
21 / 3 = 25
7 = 25%
25 x 4 = 100%
so
7 x 4 = 28
28 people are in the class
Relationships and Equations Homework
For #1–3, evaluate to find the value of y. Show your work.
y=4x-7
If x=8, what is y?
If x=3, what is y?
y=2x2
If x=3, what is y?
If x=5, what is y?
y=(2+x)2
If x=1, what is y?
If x=3.5, what is y?
For #8–15, write < , > , or = to make each statement true.
2.4 2.8
53 1.666….
1.43 .296
92 4.500
5.62 5.602
0.32 0.032
314 318
3437 3435
Answer:
Step-by-step explanation:
If x=8, y = 4(8) - 7 = 25
If x=3, y = 4(3) - 7 = 5
If x=3, y = 2(3^2) = 18
If x=5, y = 2(5^2) = 50
If x=1, y = (2+1)^2 = 9
If x=3.5, y = (2+3.5)^2 = 30.25
2.4 < 2.8
53 > 1.666…
1.43 > .296
92 > 4.500
5.62 > 5.602
0.32 > 0.032
314 < 318
3437 > 3435
Wally Martin purchased an office chair for $167.87. He received a $19.95 rebate from the manufacturer and a $8.95 rebate from the store. What is the final price?
please help, thank you!
Answer:
To find all values of x for which f(x) = 26, we can set up the equation:
8x + 15/x = 26
Multiplying both sides by x, we get:
8x^2 + 15 = 26x
Bringing all the terms to one side, we get:
8x^2 - 26x + 15 = 0
We can factor this quadratic equation using the factoring method or by using the quadratic formula. Here, we will use the factoring method:
8x^2 - 26x + 15 = 0
(4x - 3)(2x - 5) = 0
Setting each factor equal to zero and solving for x, we get:
4x - 3 = 0 OR 2x - 5 = 0
4x = 3 OR 2x = 5
x = 3/4 OR x = 5/2
Therefore, the values of x for which f(x) = 26 are x = 3/4 or x = 5/2.
Find the surface area of the composite figure shown below that
consists of a right cone sitting atop a right cylinder. Use 3.14 form and
give the answer in square meters.
1-20 m
r 13 m
h=13m
Using the right cone formula we know that the surface area is 1281.77638m³ respectively.
An axis that is perpendicular to the base plane defines a right circular cone. By rotating a right triangle around one of its legs, we may create a right cone.
The right circular cone in the illustration has an axis that is perpendicular to the base and a circular base with a radius r.
So, the formula for the surface area of the right cone is as follows:
πr(r+√h²+r²)
We have the values: r = 13m and h = 13m
Now, insert values as follows:
= πr(r+√h²+r²)
= π13(r+√13²+13²)
= 1281.77638
Therefore, using the right cone formula we know that the surface area is 1281.77638m³ respectively.
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The radius of a circle is 11 meters. What is the circle's circumference?
Use 3.14 for л.
r=11 m
Answer:
The formula for the circumference of a circle is C = 2πr, where r is the radius of the circle and π (pi) is a mathematical constant approximately equal to 3.14.
Substituting the given value of r=11 m and using π = 3.14, we get:
C = 2πr
C = 2 x 3.14 x 11 m
C = 69.08 m
Therefore, the circumference of the circle is 69.08 meters
Help Please! (And FAST) THANK YOU
Answer:
(6,3)
(-6,3)
Step-by-step explanation:
A shipping container is in the form of a right rectangular prism, with dimensions of
30 ft by 8 ft by 8 ft 9 inches. How many cubic feet of shipped goods would it hold
when it is full? Round your answer to the nearest tenth if necessary.
Answer:2,160ft
Step-by-step explanation: Volume=length * width * height
30x8x9=2160
can someone please solve????!! thanks
Answer:
(a) Figure 3
(b) 66.2 meters per second
Step-by-step explanation:
You want to know the figure that shows the best fit of a curve to the data, and you want to know the value of the curve when x = 8 seconds.
Best fitThe fit is best when the difference between the data points and the curve is minimized. Often the sum of the squared differences is the metric that is minimized when the fit is best.
The gaps between the data points and the curve shown are greatest in Figures 1 and 2, so Figure 3 has the best fit.
Estimated valueThe speed is estimated by the equation of the curve of best fit as ...
y = 0.6x² +2.1x +11
A slight rearrangement can make this easier to evaluate:
y = (0.6x +2.1)x +11
For x=8, the value of y is ...
y = (0.6·8 +2.1)·8 +11 = 6.9·8 +11 = 66.2
The predicted speed at 8 seconds is 66.2 meters per second.
What is the image of the point (7, 0) when the translation rule (x, y)→(x+1, y−2) is used?
(1, −2)
(8, −2)
(6, 2)
(5, 1)
Answer:
To find the image of the point (7, 0) under the given translation, we apply the translation rule:
(x, y) → (x + 1, y - 2)
Substituting (7, 0) for (x, y), we get:
(7, 0) → (7 + 1, 0 - 2)
= (8, -2)
Therefore, the image of the point (7, 0) under the given translation is (8, -2).
So, the correct answer is (8, −2).
Step-by-step explanation:
hope its help <: