A quadratic equation with -1 and 5 as its roots is x^2 - 4x - 5 = 0 by multiplying the terms.
The roots of a quadratic equation are the values of the variable that satisfy the equation. They are also known as the "solutions" or "zeros" of the quadratic equation.
Derive factor from the roots
x = -1 and x = 5
x + 1 = 0 and x - 5 = 0
Now, (x+1)(x-5) = 0
x(x - 5) + 1(x - 5) = 0
x^2 - 5x + x - 5 = 0
x^2 - 4x - 5 = 0
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Divide ₹1750 into 2 parts such that if one part be lent out at 15% per annum for 2 years and the other part at 16% per annum for 3 years, the total interest is 624.
The amount of lent out at 15% and 16% will be ₹1,200 and ₹550, respectively.
What is simple interest?Let P be the principal, R be the rate of interest, and T be the time. Then the interest rate is given as,
The formula for interest is written as,
I = (PRT)/100
Divide ₹1750 into 2 parts such that if one part is lent out at 15% per annum for 2 years and the other part at 16% per annum for 3 years, the total interest is 624.
Let 'x' be the amount of lent out at 15%. Then the amount of lent out at 16% is (₹1750 - x). Then the equation is given as,
(x · 0.15 · 2) + [(1750 - x) · 0.16 · 3] = 624
Simplify the equation, then we have
(x · 0.15 · 2) + [(1750 - x) · 0.16 · 3] = 624
0.30x + 840 - 0.48x = 624
0.18x = 216
x = ₹1,200
Then the value of (₹1750 - x) is given as,
₹1750 - x = (₹1750 - ₹1,200)
₹1750 - x = ₹550
The amount of lent out at 15% and 16% will be ₹1,200 and ₹550, respectively.
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how to interperet ratios into values?
solve:
3/4 : 1/2
what is the value?
The value of the given ratio 3/4 : 1/2 is 3/2.
How to interperet ratios into values?To get the value of a ratio, we just need to take the quotient between the first and second values.
For example, the value of a:b is a/b.
In this case we have the ratio:
3/4 : 1/2
Taking the quotient we will get:
(3/4)÷(1/2) = (3/4)*(2/1) = 6/4
= 3/2
That is the value of the ratio.
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82.6>-11.8d
What is d?
Answer:
d > - 7
Step-by-step explanation:
Swap the sides :
- 11.8d < 82.6
Then, divide both sides of the inequality by -11.8 and flip the inequality sign
Solve: x²-8x = 24
O x = − 4 ± √√40
O
x = 2√/10 ± 4
Ox=4±2√10
O x = 4+√40
The solution of the expression x²-8x = 24 will be x = 4+√40. The correct option is D.
What is an expression?Expression in maths is defined as the relation of numbers variables and functions by using mathematical signs like addition, subtraction, multiplication, and division.
Given that the quadratic expression is, x²-8x = 24. The expression will be solved as below,
x²-8x = 24
Solve the above expression by completing the square method.
x²-8x = 24
( x - 4 )² - 24 - 16 = 0
( x - 4)² =40
x - 4 = √40
x = √40 + 4
Therefore, the correct option is D.
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can solve the question in the picture and solve both parts
Answer:
zeroparallel to the x-axisStep-by-step explanation:
You want to know the slope of the line segment between (-4, -3) and (3, -3), and its relation to the x-axis.
SlopeThe slope of a line between two points (x1, y1) and (x2, y2) is given by the formula ...
m = (y2 -y1)/(x2 -x1)
For the given points, the slope is ...
m = (-3 -(-3))/(3 -(-4)) = 0/7 = 0
The slope of the line segment is zero.
The line segment has the same slope as the x-axis. It is parallel to the x-axis.
__
Additional comment
The equation of the line segment is ...
y = -3 . . . for -4 ≤ x ≤ 3
The equation of the x-axis is ...
y = 0
A right triangle has acute angles c and d . If c=15/8 and sin d=8/17, what are cos d and cos c?
The value of the right triangle cos d = 15/17 and cos c = 8/17.
What are trigonometric functions?Simply put, trigonometric functions—also referred to as circular functions—are the functions of a triangle's angle. This means that these trig functions provide the relationship between the angles and sides of a triangle. Sine, cosine, tangent, cotangent, secant, and cosecant are the fundamental trigonometric functions.
Given that, the value of tan c = 15/8 and the value of sin d = 8/17.
From the trigonometric functions we can conclude that:
Opposite side to c = 15
Adjacent side to c = 8
Hypotenuse = 17
Opposite side to d = 8
Adjacent side to d = 15
The values of cos d is:
cos d = Adjacent side to d / Hypotenuse = 15/17
cos c = Adjacent side to c / Hypotenuse = 8/17
Hence the value of the right triangle cos d = 15/17 and cos c = 8/17.
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A shipping container will be used to transport several 130-kilogram crates across the country by rail. The greatest weight that can be loaded into the container is 27500 kilograms. Other shipments weighing 3100 kilograms have already been loaded into the container. Which inequality can be used to determine cc, the greatest number of 130-kilogram crates that can be loaded onto the shipping container?
The inequality is c ≤ 187, where c is the number of 130-kg crates that can be added to the shipping container
What is an Inequality Equation?Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
In an inequality, the two expressions are not necessarily equal which is indicated by the symbols: >, <, ≤ or ≥.
Given data ,
Let the inequality equation be represented as A
Now , the value of A is
Substituting the values in the equation , we get
Let the number of 130-kg crates that can be added to the shipping container be c
The greatest weight the shipping container can hold = 27,500 kg
The weight that is already loaded = 3,100 kg
So , the total number of 130kg weights = 130c
Substituting the values in the equation , we get
27500 - 3100 ≥ 130c
130c ≤ 24,400
Divide by 130 on both sides of the equation , we get
c ≤ 187.69
So , the value of c is 187 crates
Hence , the inequality is c ≤ 187
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if a data set is normally distributed what percent of the data will lie below the mean
Explanation:
The normal curve, aka bell curve, has mirror symmetry with the mean at the very center. Half of the data is below the mean, while the other half is above the mean.
About 68% of the data will lie below the mean in a normally distributed data set. This is known as the Empirical Rule, which states that if a data set is approximately normally distributed, then approximately 68% of the data falls within one standard deviation of the mean, 95% falls within two standard deviations, and 99.7% falls within three standard deviations.
Felipe wants to go to all 19 home games at a football club.
For each game, a ticket costs £32
A season ticket costs £389 and gives entry to all 19 home games.
In total, how much does Felipe save by buying a season ticket?
Answer: 219
Step-by-step explanation:
32 times 19= 608
608 minus 389=219
Using the F’(x) Graph shown, find the Integral from 0 to 1 F’(x)dx if f(5) = -7.8, and f(0) = 3.
Answer:
[tex]-22.8[/tex]
Step-by-step explanation:
[tex]\int^{1}_{0} f'(x) \text{ } dx=f(1)-f(0)=f(1)-3 \\ \\ \\ B=\int^{5}_{1} f'(x) \text{ } dx=12 \implies f(5)-f(1)=12 \\ \\ -7.8-f(1)=12 \implies f(1)=-19.8 \\ \\ \therefore f(1)-3=-19.8-3=-22.8[/tex]
Which measure of centre is meaningful when the data are qualitative?
A. The range
B. The mean
C. The mode
D. The median
The correct answer is C. The Mode.
What is data in math?Data is the collection of data term that is organized and formatted in a specific way it's typically contains fact observation or statistics that are collected through a process of measurement or research data set can be used to answer question and help make informed decision they can be used in a variety of ways such as to identify trends on cover patterns and make prediction.
This measure of centre is most meaningful when the data is qualitative because it shows the value that appears most frequently in the data set. The mode can be used to identify the most popular item or most commonly occurring outcome. It is the only measure of centre that can be used for qualitative data, as the other measures (mean, median, and range) require numerical data.
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I don’t understand this can someone help
Answer:
f(-2) = 2
Step-by-step explanation:
Using the graph, we can determine the y value when x = -2.
When x = -2, the y value is 2.
f(-2) = 2
2x(x) + 28 = (2x + 2)(x + 2)
Answer:
x = 4
Step-by-step explanation:
2x(x) + 28 = (2x + 2)(x + 2) ← expand factors using FOIL
2x² + 28 = 2x² + 6x + 4 ( subtract 2x² from both sides )
28 = 6x + 4 ( subtract 4 from both sides )
24 = 6x ( divide both sides by 6 )
4 = x
Factor completely.
28x³y7z² - 7xy4
Answer: 28xy(7x^2-1)
Step-by-step explanation:
28x^3yx7z^2-7x4xy
196x^3-28xy
Pleaseeee help needddd done asappppp
8 is (6x^2-7x-5)/(2x + 1)
State how the triangles are congruent using SSS, SAS, ASA, AAS, or
HL. If they are not congruent, type NOT.
Answer:
AAS
Step-by-step explanation:
There are two pairs of congruent angles, and the pair of congruent sides is not included in between the angles.
2. How can the term unit square help you to remember
that area is measured in square units?
When ever the area is calculated the units will have a degree of two.
What is an area?The area is defined as the space covered by any two-dimensional body. The unit if the area is calculated as square units. The square units come because the area is calculated by the two parameters of length.
The area of the rectangle is calculated by the multiplication of the two lengths like length and width.
Similarly, the area of the circle is calculated by taking the square of the radius of the circle it means that the length here is also multiplied by two times.
Therefore, the area is calculated in an square units.
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19 ounces of canned corn for $3.61
Step-by-step explanation:
106 ounces106 ouncesThis 10 can contains 106 ounces of corn, making it ideal for foodservice operators and large gatherings.don't forget to smile today
and make brainalist
if the quadrilateral is enlarged by a scale factor of 3, what will be the new perimeter?3.2 3.2 9.6 8 6.4 4.8
The new perimeter of the quadrilateral is 157.2 ft
Consider the following diagram.
We name the quadrilateral ABCD such that side AB = 12.2 ft, side BC = 16 ft, side AD = 12 ft
Let us assume that the perpendicular or height be DE = 12 ft
From figure we can observe that side AB = side CD
So, side CD = 12.2 ft
The quadrilateral is enlarged by a scale factor of 3
so, the dimensions of the new quadrilateral would be,
A'B' = 3 × AB
= 36.6 ft
So, C'D' = 36.6 ft ............(as AB = CD)
B'C' = 3 × BC
B'C' = 48 ft
And A'D' = 3 × AD
A'D' = 36 ft
We know that the perimeter of quadrilateral is the sum of all the four sides.
So, the perimeter of new quadrilateral A'B'C'D' would be,
A'B' + B'C' + C'D' + A'D'
= 36.6 + 48 + 36.6 + 36
= 157.2 ft
Therefore, the perimeter is 157.2 ft
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Find the complete question below.
Start with the equation −5=x. Do the same thing to each side at least three times to create an equation that has the same solution as the starting equation.
Or
Mr. Mosley ordered pizzas for the volunteers at Highland School's fundraiser event. He ordered 12 large pizzas from the Roman Rounds pizzeria. Since this was a bulk order, Roman Rounds reduced the price of each large pizza by $2. The total came to $192. Which equation can you use to find the amount of money, p, Roman Rounds normally charges for a large pizza?
Equation that we can use to find the amount of money, p, Roman Rounds normally charges for a large pizza is 12(p - 2) = 192.
Let's use p to represent the normal price of a large pizza from Roman Rounds. Since Mr. Mosley ordered 12 large pizzas and received a $2 discount on each, he paid a total of $192. We can use this information to set up the following equation:
12(p - 2) = 192
In this equation, 12 represents the number of large pizzas that were ordered, and (p - 2) represents the discounted price of each pizza. The left side of the equation gives us the total amount that Mr. Mosley paid for the pizzas. By setting this expression equal to 192, we can solve for p, the normal price of a large pizza from Roman Rounds.
To solve for p, we first distribute the 12 on the left side of the equation:
12p - 24 = 192
Next, we add 24 to both sides of the equation:
12p = 216
Finally, we divide both sides of the equation by 12:
p = 18
Therefore, the normal price of a large pizza from Roman Rounds is $18.
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the weights of medium oranges packaged by an orchard are normally distributed with a mean of 14 oz and a standard deviation of 2 oz. 1 orange is randomly selected. what is the probability that this orange weighs more than 17 oz?
The probability that an orange weighs more than 17 oz is 0.1587.
The probability that an orange weighs more than 17 oz is 0.1587. This value can be calculated using the Z-score formula, which is used to calculate the probability of an event occurring. The formula is as follows:
Z = (x - μ) / σ
where x is the data point, μ is the mean, and σ is the standard deviation.
In this case, the Z-score is (17 - 14) / 2 or 1.5. We can find the probability using the Z-score table, which gives us 0.1587, the probability that an orange weighs more than 17 oz.
The Z-score formula is useful for determining the probability of an event occurring when the data follows a normal distribution. Knowing the mean and standard deviation, we can calculate the likelihood of a certain outcome occurring. In this case, the probability that an orange weighs more than 17 oz is 0.1587.
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What is the answer Which of the following equations have infinitely many solutions?
Choose all answers that apply:
Choose all answers that apply:
(Choice A)
A
-6x+35=-6x-35−6x+35=−6x−35minus, 6, x, plus, 35, equals, minus, 6, x, minus, 35
(Choice B)
B
6x+35=-6x-356x+35=−6x−356, x, plus, 35, equals, minus, 6, x, minus, 35
(Choice C)
C
-6x+35=-6x+35−6x+35=−6x+35minus, 6, x, plus, 35, equals, minus, 6, x, plus, 35
(Choice D)
D
6x+35=-6x+356x+35=−6x+35
I am still confused
-6x+35 = -6x+35 has the same thing on each side: , so this has infinite solutions. Option c is correct.
An equation will have infinite solutions if both sides of the equal sign are the exact same thing, for instance . (You can test this with any value of x and find that they all work!)
So to find the equations that have infinite solutions, we need to see which have the same exact sides.
(Choice A)
-6x+35 = -6x-35 have the different thing on each side: , so this has no solution.
(Choice B)
6x+35 = -6x-35 does not have the same thing on each side, so it doesn’t have infinite solutions (it has 1).
(Choice C)
-6x+35 = -6x+35 has the same thing on each side: , so this has infinite solutions.
(Choice D)
6x+35=-6x+35 And finally, has the different thing on each side: , so it has one solution.
Hence , -6x+35 = -6x+35 has the same thing on each side: , so this has infinite solutions.
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While playing a game of chance, Mei rolled a regular six-sided die 100 times and noticed that it landed on the number 4 exactly 48 times. What could Mei conclude about the die?
We are 90% confident that the true proportion of times the die would land on the number 4 is between 0. 398 and 0. 562. Since this includes 0. 5, the die appears to be fair. We are 90% confident that the true proportion of times the die would land on the number 4 is between 0. 398 and 0. 562. Since this is much greater than 1 out of 6, the die appears to be unfair. We are 90% confident that the true proportion of times the die would land on the number 4 is between 0. 382 and 0. 578. Since this is much greater than 1 out of 6, the die appears to be unfair. We are 90% confident that the true proportion of times the die would land on the number 4 is between 0. 382 and 0. 578. Since this includes 0. 5, the die appears to be fair
Mei concluded that
We are 90% confident that the true proportion of times the die would land on the number 4 is between 0.398 and 0.562. Since this includes 0.5, the die appears to be fair.
It is based on a statistical analysis of the data collected by Mei.
The proportion of times the die landed on the number 4 is calculated as 48/100 = 0.48.
Using a statistical method called a confidence interval, we can estimate the range of values that the true proportion of times the die would land on the number 4 is likely to fall within, with 90% confidence.
The confidence interval calculated for this data is 0.398 to 0.562.
Since this interval includes the value of 0.5 (which would be the proportion of times a fair die would land on the number 4), By using statistical method we cannot reject the hypothesis that the die is fair.
Hence,
By using statistical method, we can conclude that the die would land on the number 4 is between 0.398 and 0.562 as 0.5 the die appears to be fair.
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96 Vistors in 6 Hours. How many visitors per hour?
Answer:
16 visitors per hour
Step-by-step explanation:
96/6 = 16
look at attachment
The graph of the relation G is shown below.
Give the domain and range of G .
Write your answers using set notation.
please explain it too I dunno what I'm doing btw I set the point worth to 50 points
Answer:
The answer is 15 and 22
Step-by-step explanation:
KHAN
Todd and Amani started savings accounts. Todd started with
$10 and deposits $4 each week. Amani started with $10 and
makes two $2 deposits each week. Complete the table. Will
Todd and Amani ever have the same amount in their
accounts? Why or why not? Write an equation to represen-
the total amount in each of their accounts at any
given time.
a) Since Todd and Amani started with the same initial deposit, they will never have the same amount in their accounts if they keep to their weekly savings plans because Todd's weekly savings are two times that of Amani.
b) An equation to represent the total amount in each of their accounts at any given time or weeks is as follows:
Todd, t = 10 + 4wAmani, a = 10 + 2w.What is an equation?An equation is a statement of equality or equivalence of two or more mathematical expressions.
Mathematical expressions combine values, variables, and numbers or constants without the equation symbol (=), which differentiates them from equations.
Todd Amani
Initial deposit in account $10 $10
Weekly deposits $4 $2
Let the number of weeks of deposits = w
Let the total deposit in Todd's account in w weeks = t
t = 10 + 4w
Let the total deposit in Amani's account in w weeks = a
a = 10 + 2w
For Todd's and Amani's account to be equal, 10 + 4w = 10 + 2w
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Write a real-world situation and an algebraic expression that is represented by the bar diagram:
The expression is there are 2 chocolates and 5 lollypops having a total cost of $5. The expression is 2C + 5L = $5.
What is an expression?Expression in maths is defined as the relation of numbers variables and functions by using mathematical signs like addition, subtraction, multiplication, and division.
Suppose the real-time situation is if there are 2 chocolates and 5 lollypops having a total cost of $5.
The mathematical form of the expression can be written as:-
2C + 5L = 5
Here, C is the cost per chocolate and L is the cost of per Lollypop.
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The complete question is given below.
Write the expression if there are 2 chocolates and 5 lollypops having a total cost of $5.
4. Fill in the following equivalents:
1 Tbsp. =
1/4 c. =
1 c. =
1 c. =
1/3 c. =
Based on the conversion factors, the equivalent values are as follows:
1 Tbsp. = 1/16 c
1/4 c. = 4 Tbsp
1 c. = 16 Tbsp
1 c. = 1/2 pint
1/3 c. = 80 mL
What are conversion factors?A conversion factor is a number that is used to multiply or divide one set of units into another. If a conversion is required, it must be done using the correct conversion factor to get an identical value. For instance, 12 inches equals one foot when converting between inches and feet.
The conversion factor for Tbsp to c is 1/4, which means that 1 Tbsp. is equal to 1/4 c.
The conversion factor for c to mL is 236.6, which means that 1 c. is equal to 236.6 mL (rounded to one decimal place).
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fifth fifth generation equipment is state the advantage and disadvantage how such computers were designed
Answer:
Step-by-step explanation:
Advantages of Fifth Generatin of Computer:These computers are much faster than other generation computers. Development of true artificial intelligence.
Development of Natural language processing.
Advancement in Parallel Processing. Advancement in Superconductor technology. More user-friendly interfaces with multimedia features. Availability of very powerful and compact computers at cheaper rates.
Disadvantages of Fifth Generatin of Computer: They tend to be sophisticated and complex tools. ...
Example of Third Generation of Computer: Desktop.
