Answer:
Step-by-step explanation:
\(D =\left[\begin{array}{cc}8&-4\\-14&12\end{array}\right] -\left[\begin{array}{cc}-1&-15\\0&7\end{array}\right] \\\\\\\\=\left[\begin{array}{ccc}8+1&-4+15\\-14-0&12-7\end{array}\right]\\\\\\=\left[\begin{array}{ccc}9&11\\-14&5\end{array}\right]\)
A right triangle has a leg of 11 cm and a hypotenuse of 17 cm. What is the length of the other leg? round to the nearest tenth. Responses 6. 0 cm 6. 0 cm 13. 0 cm 13. 0 cm 20. 2 cm 20. 2 cm 168. 0 cm.
The length of the other leg of a right triangle, as per the Pythagoras theorem, is option B: 13.0 cm.
The Pythagorean theorem, sometimes known as Pythagoras' theorem, is a basic relationship between a right triangle's three sides in Euclidean geometry. According to this statement, the areas of the squares on the other two sides add up to the size of the square whose side is the hypotenuse. The calculation of the other leg of tbe triangle is given as follows.
According to the Pythagoras theorem:
(Hypotenuse)² = (Base)² + (Height)²
As per the question,
The height or the length of a leg of a right triangle is given equal to 11 cm and hypotenuse is given 17 cm. The other leg, or the base can be calculated as:
(Base)² = (Hypotenuse)² - (height)²
b² = (17)² - (11)²
b² = 289 - 121
b² = 168
b = √168
b = 12.96
or b = 13cm.
Thus, the base or the other leg of the right triangle is equal to 13 cm.
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The list bellow shows the different choices of pizza at the local pizza shop .Peperoni 11 Supreme 7 6 cheese Hawaiano 3 based on the results if 189 pizza were sold then how many could be expected to be cheese
Answer:
The number expected to be cheese are 42 Pizzas
Step-by-step explanation:
According to the information provided, the total choices of Pizza at a local pizza shop are as follows:
Pizza Choice
Peperoni 11
Supreme 7
Cheese 6
Hawaiano 3
Total 27
The total pizza sold were 189, out of which the number expected to be cheese will be calculated by dividing the total number of choices and multiplying it with the required type of pizza chosen. This is done as follows:
189 / 27 * 6 = 42 Cheese Pizza
Which of the following correctly describes the relationship between a parameter & a statistic?
a) A statistic is calculated from sample data and it's generally used to estimate a parameter.
b) statistics are a group of subjects selected according to the parameters of the study.
c) A parameter is calculated from sample data and is generally used to estimate a statistic.
d) A perimeter and a statistic are not related.
(a) correctly describes the relationship between a parameter and a statistic.
The correct description is:
a) A statistic is calculated from sample data and is generally used to estimate a parameter.
In statistics, a parameter refers to a characteristic or measure that describes a population, while a statistic is a characteristic or measure calculated from sample data. Statistics are often used to estimate or infer the corresponding parameters of the population. Therefore, option (a) correctly describes the relationship between a parameter and a statistic.
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1. Determine whether the stress function = 50x² - 60xy - 70y² satisfies the conditions of compatibility for a two-dimensional problem. Obtain the stress distribution in the matrix plate. Also draw a sketch showing the boundary stresses on (tensor) form. [4+4+2 points]
The stress function satisfies the conditions of compatibility for a two-dimensional problem.
Given stress function is 50x² - 60xy - 70y²
To determine whether the stress function satisfies the conditions of compatibility for a two-dimensional problem, it is required to find the strains and then check for compatibility equations.
Strain components are given as,
εx = ∂υ/∂x + (du/dx)
εy = ∂υ/∂y + (du/dy)
γxy = ∂υ/∂y + (du/dx)
Here,
υ = 50x² - 60xy - 70y²
du/dx = 100x - 60
ydu/dy = -60x - 140y
∂υ/∂x = 100x - 60y
∂υ/∂y = -60x - 140y
∂²υ/∂y² = -140
∂²υ/∂x² = 100
Now,εx = 100x - 60
yεy = -140y - 60
xγxy = -60y - 60x
Taking derivative of εy w.r.t x,
∂(εy)/∂x = -60
Similarly, taking derivative of εx w.r.t y,
∂(εx)/∂y = -60
∴ The stress function satisfies the conditions of compatibility for a two-dimensional problem.
Stress components are given as,
σx = (C11εx + C12εy)
σy = (C21εx + C22εy)
τxy = (C44γxy)
Here,C11 = C22 = 100, C12 = C21 = -60 and C44 = 0
Therefore,
σx = 100(100x - 60y) - 60(-140y - 60x)
= 19600x - 8800
yσy = -60(100x - 60y) + 100(-140y - 60x)
= -19600y + 8800x
τxy = 0
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if f(x)=5x+7 and g(x)=-2-4 find g(f(x))=[?]x+[ ]
g(f(x)) = -10x - 18, which can be written as [-10]x + [-18].
How to find and what is an equation?
To find g(f(x)), we first need to find f(x) and then substitute it into g(x).
f(x) = 5x + 7
Substituting f(x) into g(x):
g(f(x)) = g(5x + 7) = -2(5x + 7) - 4
= -10x - 14 - 4
= -10x - 18
Therefore, g(f(x)) = -10x - 18, which can be written as [-10]x + [-18].
An equation is a mathematical statement that asserts the equality of two expressions. It typically consists of two expressions, separated by an equal sign. The expressions on either side of the equal sign may contain variables, constants, and mathematical operations.
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the accompanying relative frequency distribution represents the last year car sales for the sales force at kelly's mega used car center. car sales relative frequency 35 up to 45 0.07 45 up to 55 0.15 55 up to 65 0.31 65 up to 75 0.22 75 up to 85 0.25 if kelly's employs 100 salespeople, how many of these salespeople have sold at least 45 but fewer than 65 cars in the last year?
In the past year, 16 salespeople have sold between 45 and 65 cars.
Given that the accompanying relative frequency distribution represents the last year car sales for the sales force at Kelly's Mega Used Car Center, and we need to determine how many of these salespeople have sold at least 45 but fewer than 65 cars in the last year.
As per the given distribution, Car Sales Relative Frequency3 5 up to 450.0745 up to 550.1555 up to 650.3165 up to 750.2275 up to 850.25
The relative frequency of cars sold between 45 and 65 is: Relative Frequency of cars sold between 45 and 65 = 0.31 - 0.15 = 0.16
Since there are 100 salespeople at Kelly's Mega Used Car Center, the number of salespeople who have sold at least 45 but fewer than 65 cars in the last year is: Number of salespeople who have sold at least 45 but fewer than 65 cars in the last year = 0.16 x 100= 16 cars
Therefore, the number of salespeople who have sold at least 45 but fewer than 65 cars in the last year is 16.
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ANSWER FOR 30 POINTS A 13-foot ladder is leaning against a tree. The bottom of the ladder is 5 feet away from the bottom of the tree. Approximately how high up the tree does the top of the ladder reach?
Answer:
12 feet
Step-by-step explanation:
Use the Pythagorean Theorem to find how high up the tree the top of the ladder reaches.
13 feet - hypotenuse
5 feet - can be a or b
a² + b² = c²
5² + b² = 13²
25 + b² = 169
b² = 144
b = √144
b = 12
The top of the ladder reaches 12 feet up the tree.
Hope that helps.
Answer:
12 ft
Step-by-step explanation:
These circumstances describe a triangle with hypotenuse 13 ft and bottom side 5 ft. The vertical side (height above ground to top of ladder) is to be found. According to the Pythagorean Theorem,
5^2 + (vertical side)^2 = 13 ft = 169, and so
(vertical side) = sqrt( 169 - 25 ) = 144 (ft)
The top of the ladder is s 12 ft above the ground.
simplify
(8p^6)^1/3
simplifyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
Answer:
\(2p^2\)
Step-by-step explanation:
Step 1: Apply the exponentiation property:
\((8p^6)^\frac{1}{3} = 8^\frac{1}{3} * (p^6)^\frac{1}{3}\)
Step 2: Simplify the cube root of 8:
The cube root of 8 is 2:
\(8^\frac{1}{3} =2\)
Step 3: Simplify the cube root of \((p^6)\):
The cube root of \((p^6)\) is \(p^\frac{6}{3} =p^2\)
Step 4: Combine the simplified terms:
\(2 * p^2\)
So, the simplified expression is \(2p^2\).
The question is in the photo. Disregard the checked answer i just picked an answer.
Answer:
0,3, and 6.
Explanation:
The second derivative of the function f is given below:
\(f^{\prime}^{\prime}(x)=x^2(x-3)(x-6)\)To find the x-coordinate of the point of inflection, set the second derivative of the function equal to zero and solve for x.
\(\begin{gathered} x^2(x-3)(x-6)=0 \\ \implies x^2=0\text{ or }x-3=0\text{ or }x-6=0 \\ \operatorname{\implies}x=0\text{ or }x=3\text{ or }x=6 \end{gathered}\)The x-coordinates of the point of inflection are 0,3, and 6.
An exam consists of 40 multiple-choice questions. Each question has a choice of five answers, only one of which is correct. For each correct answer, a candidate gets 1 mark, and no penalty is applied for getting an incorrect answer. A particular candidate answers each question purely by guess-work. Using Normal approximation to Binomial distribution with continuity correction, what is the estimated probability this student obtains a score greater than or equal to 10? Please use R to obtain probabilities and keep at least 6 decimal places in intermediate steps.
A. 0.7234 B. 0.2766 C. 0.5927 D. 0.1615 E. 0.3773
The estimated probability that the candidate obtains a score greater than or equal to 10 is 0.7234, rounded to four decimal places, so the answer is (A).
The number of correct answers that the candidate gets is a binomial random variable with parameters n = 40 (number of trials) and p = 1/5 (probability of success). We want to find the probability that the candidate gets a score greater than or equal to 10, which is equivalent to getting 10 or more questions correct.
Using the normal approximation to the binomial distribution with continuity correction, we can approximate the distribution of the number of correct answers by a normal distribution with mean μ = np = 40 * 1/5 = 8 and variance σ^2 = np(1-p) = 40 * 1/5 * 4/5 = 6.4.
To find the probability that the candidate gets 10 or more questions correct, we can standardize the normal distribution and use the standard normal distribution table or R to find the probability.
Let X be the number of correct answers. Then, we have:
P(X >= 10) = P((X - μ) / σ >= (10 - μ) / σ)
= P(Z >= (10 - 8) / sqrt(6.4)), where Z is a standard normal random variable.
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Paul pent $72 on 4 day-lilie and 7 geranium. Megan pent $128 on 10 day-lilie and 11 geranium. Find the cot of one day-lily and the cot of one geranium
The cost of one day-Lilly is found to be $4 and the cost of one geranium is found to be $8. Therefore, Paul spent about $16 for day-Lilly and $56 for geranium. And Megan spent about $40 for day-Lilly and $88 for geranium.
Two or more algebraic equations that have a common variable and are solved simultaneously are referred to as simultaneous equations. We can find the answers to both unknowns if we have two separate equations with the same two unknowns in each. Here, we'll employ the addition-and-subtraction or elimination method.
Let's consider the cost of day-Lilly as x and the cost of geranium as y. The cost spent by Paul is written as 4x+7y=$72 and Megan is written as 10x+11y=$128.
Solving these two equations for x and y,
\(\begin{aligned}40x+70y = \$720\\\underline{40x+44y=\$512}\\26y=\$208\\y=\$8 \end{aligned}\)
Substitute the value of y in equation 4x+7y=$72 to get the value of x,
\(\begin{aligned}4x+7(8)&=\$72\\4x&=\$16\\x&=\$4\end{aligned}\)
The answers are $4 and $8.
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an ecology center wants to set up an experimental garden in the shape of a rectangle. the length of the rectangle is 4 yards longer than the width. what are the dimensions of the garden if the enclosed area is 21 square yards. state units.
in which situation do the quantities combine to make 0?
Answer:
The additive inverse of a real number is the opposite of that number on the real number line. For example, the opposite of −3 is 3. A number and its additive inverse have a sum of 0. The sum of any number and its opposite is equal to zero.
Miss Smith bought 60 notebooks and 72 pencils to make identical packages with some notebooks and some pencils for her students. She used everything she bought, and every student got a package. What is the largest number of packages she can make? How many notebooks and pencils would be in each package?
Answer: 12 packages with 5 notebooks and 6 pencils in each package.
Step-by-step explanation:
The greatest common factor of 60 and 72 is 12. Thus divide both numbers(60 and 72) by 12 to get 5 and 6. Thus, Miss Smith made 12 packages with 5 notebooks and 6 pencils in each package.
Answer:
12 packages with 5 notebooks and 6 pencils in each package.
Step-by-step explanation:
This is one question please help me I’ll mark as brainliest
I JUST NEED TO KNOW THE EXPRESSION I WILL GIVE BRAINLIESTJackson purchased a pack of game cards that was on sale for 22% off. The sales tax in his county is 6%. Let y represent the original price of the cards. Write an expression that can be used to determine the final cost of the cards.
Answer:
y-0.22%=x+0.06%
Step-by-step explanation:
Is 3x + 2y = 6 a function??
A. No, the equation is not a function; there is an x-value that produces two distinct y-values.
B. Yes, the equation is a function; the graph of the line passes the vertical line test.
C. Yes, the equation represents a function because there is both an x and a y.
Answer:
B :)
Step-by-step explanation:
A research company surveys people in a community about a new recycling program. The company expects 6,000 people to respond favorably. If there is a percent error of 2.5%, what is the range of the number of people who are expected to respond favorably to the survey?
Answer:
5850
Step-by-step explanation:
is the question complete? if so this is the answer pls check if the question has more details
Q1. A heavy general purpose truck costs $12,000 has a life of six years with a $2,000 SV. using the
MACRS with a GDS recovery period of five years. What is the BV of the equipment at the end of
(including) year four?
IN EXCEL WITH EXPLANATION PLEASE
Answer:
Therefore, the book value of the equipment at the end of year four (including year four) is $2,880.
Step-by-step explanation:
To calculate the book value of the equipment at the end of year four using the MACRS method with GDS recovery period of five years, we can use the following steps in Excel:
1. Open a new Excel spreadsheet and create the following headers in row 1: Year, Cost, Depreciation Rate, Annual Depreciation, Cumulative Depreciation, and Book Value.
2. Fill in the Year column with the years 1 through 6 (since the truck has a life of six years).
3. Enter the cost of the truck, $12,000, in cell B2.
4. Use the following formula in cell C2 to calculate the depreciation rate for each year:
=MACRS.VDB(B2, 5, 5, 1, C1)
This formula uses the MACRS.VDB function to calculate the depreciation rate for each year based on the cost of the truck (B2), the GDS recovery period of five years, the useful life of six years, the salvage value of $2,000, and the year (C1).
5. Copy the formula in cell C2 and paste it into cells C3 through C7 to calculate the depreciation rate for each year.
6. Use the following formula in cell D2 to calculate the annual depreciation for each year:
=B2*C2
This formula multiplies the cost of the truck (B2) by the depreciation rate for each year (C2) to get the annual depreciation.
7. Copy the formula in cell D2 and paste it into cells D3 through D7 to calculate the annual depreciation for each year.
8. Use the following formula in cell E2 to calculate the cumulative depreciation for each year:
=SUM(D$2:D2)
This formula adds up the annual depreciation for each year from D2 to the current row to get the cumulative depreciation.
9. Copy the formula in cell E2 and paste it into cells E3 through E7 to calculate the cumulative depreciation for each year.
10. Use the following formula in cell F2 to calculate the book value of the equipment for each year:
=B2-E2
This formula subtracts the cumulative depreciation for each year (E2) from the cost of the truck (B2) to get the book value.
11. Copy the formula in cell F2 and paste it into cells F3 through F7 to calculate the book value for each year.
12. The book value of the equipment at the end of year four (including year four) is the value in cell F5, which should be $2,880.
convert 22 Australian dollars to US dollars
Answer:
22 Australian dollars are 16.12 USD
1) write a for loop that displays the following set of numbers: 0, 10, 20, 30, 40, 50...1000 (3 points)
To write a for loop that displays the numbers 0, 10, 20, 30, 40, 50...1000, use the following code:
```python
for i in range(0, 1001, 10):
print(i)
```
1. Start by creating a for loop using the `for` keyword.
2. Use the variable `i` as an iterator.
3. Utilize the `range()` function to generate a sequence of numbers.
4. Set the starting value of the range to 0, the end value to 1001 (since the end value is exclusive, it won't be included in the loop), and the step value to 10.
5. Inside the for loop, use the `print()` function to display the value of `i` for each iteration.
6. The for loop will iterate from 0 to 1000 (inclusive) with a step of 10, displaying the required sequence of numbers.
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m₂
A. 2
C. 1/3
2
1
-2-10
-2
-3
Y
B
1
D
F
2
C
A
3
4
5
In the similarity
transformation of AABC
to ADEF, AABC was dilated by
a scale factor of [?], reflected
across the [], and moved
through the translation [ ].
6
B. 1/2
O
D. 3
AABC was dilated by a scale factor of 2. Option A
What is dilation in mathematicsIn mathematics, dilation refers to a transformation that rescales an object, without changing its shape or orientation, by multiplying the coordinates of its points by a certain factor. This factor is called the dilation factor or scale factor.
A dilation can be either a reduction, if the scale factor is between 0 and 1, or an enlargement, if the scale factor is greater than 1. A dilation with a scale factor of 1 does not change the size of the object.
The first triangle has ED = 4 boxes
The second triangle has BA = 2
4 / 2 = 2
Scale factor would be 2
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(ii) Show that the equation x(x−2)2=3 can be expressed as x3−4x2+4x−3=0 The polynomial p(x) is given by p(x)=x3−4x2+4x−3. (i) Find the remainder when p(x) is divided by x+1. (ii) Use the Factor Theorem to show that x−3 is a factor of p(x). (iii) Express p(x) in the form (x−3)(x2+bx+c), where b and c are integers. c) Hence show that the equation x(x−2)2=3 has only one real root and state the value of this root.
(i) The remainder is -12.
(ii) Concluded that x - 3 is a factor of p(x).
(iii) It can be express p(x) as (x - 3)(x² - x + 1).
c) The equation x(x - 2)² = 3 has only one real root, which is x = 3.
(i) To find the remainder when p(x) = x³ - 4x² + 4x - 3 is divided by x + 1, we can use synthetic division, which is shown in the attached image.
Here, the remainder is -12.
(ii) According to the Factor Theorem, if (x - a) is a factor of a polynomial p(x), then p(a) = 0.
Substitute x = 3 into p(x) to verify if x - 3 is a factor:
p(3) = 3³ - 4(3)² + 4(3) - 3
= 27 - 36 + 12 - 3
= 0
Since p(3) = 0, we can conclude that x - 3 is a factor of p(x).
(iii) Using the factor we found in part (ii), we can divide p(x) by (x - 3) using long division or synthetic division:
We obtain a quotient of x² - x + 1 and no remainder.
Therefore, we can express p(x) as (x - 3)(x² - x + 1).
(c) Now let's consider the original equation x(x - 2)² = 3.
We know that x = 3 is a root of p(x) = x³ - 4x² + 4x - 3, which means it satisfies the equation p(x) = 0.
Hence, x = 3 is a solution to the equation x(x - 2)² = 3.
Since (x - 3) is a factor of p(x) and the quadratic factor (x² - x + 1) does not have any real roots, the equation x(x - 2)² = 3 has only one real root, which is x = 3.
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Simplify 12 + 16 ÷ 4 · 5 - 8
Step-by-step explanation:
12 + 16 ÷ 4 × 5 - 8
12 + 4 × 5 - 8
12 + 20 - 8
32 - 8
24
Answer: 24
Step-by-step explanation:
Given expression
12 + 16 ÷ 4 · 5 - 8
Simplify by division
=12 + 4 · 5 - 8
Simplify by multiplication
=12 + 20 - 8
Simplify by addition
=32 - 8
Simplify by subtraction
=\(\boxed{24}\)
Hope this helps!! :)
Please let me know if you have any questions
Brooklyns mother gave her an allowance at the beginning of a certain summer break. Brooklyn spent an equal amount of money each week from the allowance. The line graph shows her allowance over 4 weeks. How much did brooklyn spend on her allowance each week
Pls help!! Iv'e been struggling for a while!
Answer: wait how much was her allowance
Step-by-step explanation:
Julie does not want to spend more than $300 on ice skating. Her skates will cost $42, her lessons will cost a total of $56, and the practice time will cost $7.50 per hour. Which inequality should Julie use to determine the maximum number of hours, h, she can practice without spending more than $300?
Answer:
42+56+7.5h ≤ 300
≤ means less than or equal to and Julie does not want to go over 300 so this would be the correct symbol to use
Find the slope of the line passing through the points (-6, -5) and (4,4).
Answer:
9/10 or 0.9
Step-by-step explanation:
Slope of a line passing through two points (x1, y1) and (x2, y2) is given by
Slope m = rise/run
where
rise = y2 - y1
run = x2 - x1
Given points (- 6, - 5) and (4, 4),
rise = 4 - (-5) = 4 + 5 = 9
run = 4 - ( - 6) = 4 + 6 = 10
Slope = rise/run = 9/10 or 0.9
a water wave travels a distance of 10.0 meters in 5.0 seconds. what can be determined from this information?
The speed of the water wave is 2.0 meters per second.
The speed of a wave is calculated by dividing the distance traveled by the time it takes to travel that distance. In this case, the distance traveled by the water wave is 10.0 meters, and the time taken is 5.0 seconds.
To determine the speed, we use the formula:
Speed = Distance / Time
Substituting the given values, we have:
Speed = 10.0 meters / 5.0 seconds = 2.0 meters per second
Therefore, from the given information, we can determine that the speed of the water wave is 2.0 meters per second.
This information about the speed of the water wave is useful for various purposes. It allows us to understand how quickly the wave is propagating through the medium. It also helps in analyzing wave behavior, such as interference, reflection, or refraction, and studying the characteristics of the medium through which the wave is traveling. Additionally, the speed of the wave can be used in calculations involving wave frequencies, wavelengths, and periods.
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cynthia has earned 1,000 and wants to put it in a savings account that earns 5% simple interest assuming she makes no additional deposits or withdrawals what will be the total value of cynthias account after 48 months
Answer:
6746734
Step-by-step explanation:
first fo 45 minus 45 get 0 add then 56 plus 34
Answer:
1200
Step-by-step explanation:
1000(1+.05x4)
5%=.05
convert the months into years
An operation is defined as p*q=5q+p2 evaluate 7*3
Answer:
64
Step-by-step explanation:
7*3 ( with p = 7 and q = 3 )
= 5(3) + 7²
= 15 + 49
= 64