Scalar and Matrix multiplication What is the dang product???

Answer:

Step-by-step explanation:

The question is about area of a triangle

The formula for a triangle's area is

Area = 1/2 h * b

h = 8

b = 20

Solution

Area = 1/2 20 * 8

Area = 80 ft^2

Herman plans to paint a triangular section of his house. The house is 20 feet long. The height of the triangular section is 8 feet. How many square feet of paint will Herman need?

Given -

Need to find -

Solution -

This question is based on Area of a triangle to solve this question we need to calculate the area of the triangular section of the house.

We know,

\(⍟ \large \ \boxed { \rm{ Area_{(triangle)} = \dfrac{1}{2} × b × h }}\)

Where,

Substituting the value of h = 8 feet and b = 20 feet

\( \large\sf{ Area_{(triangle)} = \dfrac{1}{2} × 20 × 8 }\)

\( \large\rm{ Area_{(triangle)} = \dfrac{1} { \cancel{2}} × \cancel{20 }× 8 }\)

\( \large\rm{Area_{(triangle)} = 10 × 8} \)

\( \large \red{\underline{\color {red} \boxed{ \sf{Area_{(triangle)} = 80 \: {feet}^{2 }} }}}\)

Hence, Herman need 80 square feet of paint to paint the triangular section of his house

\( \rule{182mm}{4pt}\)

Formulas of Area

Answer:

Annie's Orange Grove

Step-by-step explanation:

* you need to find out how much each pound of oranges cost at both orchards.

* to do so you take the total amount of money and divide it by the number of pounds you get.

1) 7.25 ÷ 20 = .36

2) 5 ÷12 = .4

* as you can see .36 is less than .4 and therefore is the better deal.

Answer:  

Step-by-step explanation:

1/10 + 2.5/10 = 3.5/10 of an hour to make one bracelet. Then change to 20ths so the numerator is a whole number.

Divide your time available by the time it takes to make one.                  

                                               21  

                                               4             = 420= 15 bracelets

                                               7                 28

                                              20

Answer:

10.20 regular cost

Step-by-step explanation:

8.50 x 6 = 51 total

51/5 = 10.20

Answer:

12.04

Step-by-step explanation:

the distance between two points in the x-axis

15-3 = 12

the distance between two points in the y-axis

7-6=1

using Pythagorean theory

a²+b²=c²

12²+1²=c²

144+1=c²

145=c²

√145=√c²

12.04=c

Answer:

four billion two hundred fifty-eight million one hundred forty-five thousand three hundred ninety-seven

Step-by-step explanation:

Answer:

Word form-

four billion, two hundred fifty-eight million, one hundred forty-five thousand, three hundred ninety-seven.

Step-by-step explanation:

Answer:

31.5

Step-by-step explanation:

hope this helps

Answer:

2x-9=0

2x-9+9=0+9.add the inverse of subtraction /addition/ (+9)

2x=9....then divide by 2

x=9/2

x=4.5. will the final answer

It is essential that you do not depart too much from overall mean value of x when predicting a future value of y because the variance of the estimate increases as we deviate, increasing uncertainty.

Regression analysis is a method being used finance, investments, and other disciplines to evaluate the strength and character of a relationship between a single dependent variable (typically represented by Y) and a set of other factors like independent variables.

Thus, when utilizing a historical regression models that predict a future value of y, it is advised to ensure that you not deviate too drastically from the mean value of x because our estimate's variance increases as we move further away from the mean, implying greater uncertainty.

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The  lengths of the two diagonals of the parallelogram are D1 and D2, where:

D1 = ||A + B||

D2 = ||A - B||

Let's denote the vectors as vector A and vector B. The lengths of the two diagonals of the parallelogram can be calculated using vector operations.

The length of the first diagonal (D1) can be calculated using the formula:

D1 = ||A + B||

The length of the second diagonal (D2) can be calculated using the formula:

D2 = ||A - B||

Here, ||A|| represents the magnitude (length) of vector A, and ||B|| represents the magnitude of vector B.

Therefore, the lengths of the two diagonals of the parallelogram are D1 and D2, where:

D1 = ||A + B||

D2 = ||A - B||

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hyfhsudeh it heieheueheiheeiheehheehe 70m

Answer: X= -15

Step-by-step explanation:  

Isolate the variable by dividing each side by factors that don't contain the variable.

The expected value 'w' for the total raffle tickets sold for $1.00 with other conditions is equal to $0.784.

Number of raffle tickets sold for $1.00 = 2000

Expected value of w is ,

= Expected value of the prize won - cost of a single ticket $1.00

The probability of winning a $25 prize is

=  20/2000

= 0.01.

The expected value of winning this prize is equal to

= (25 - 1) × 0.01

= 0.24

The probability of winning a $50 prize is

= 10/2000

= 0.005.

The expected value of winning this prize is equal to

=  (50 - 1) × 0.005

= 0.245

The probability of winning a $300 prize is

= 2/2000

= 0.001.

The expected value of winning this prize is,

= (300 - 1) × 0.001

= 0.299

This implies,

The expected value of w is equal to

= 0.24 + 0.245 + 0.299

= 0.784

Therefore, the expected value of winning a prize minus the cost of the ticket is $0.784.

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Answer:

No Solution

Step-by-step explanation:

I hope this helps

Multicollinearity occurs when independent variables in a regression model are correlated.

Multicollinearity is a statistical concept that describes the correlation of several independent variables in a model. If the correlation coefficient between two variables is +/- 1.0, they are considered perfectly collinear. When independent variables are multicollinear, statistical inferences are less reliable.
Multicollinearity is a problem because it undermines an independent variable's statistical significance. Other things being equal, the larger a regression coefficient's standard error, the less likely it is that this coefficient will be statistically significant.
When two or more predictors in a regression model are moderately or highly correlated with one another, multicollinearity exists. Unfortunately, it can wreak havoc on our analysis, limiting the research conclusions we can draw.

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There were total 276 guests in the wedding that Joy organised.

Given,

fraction of the guest that chose beef = 1/3

fraction of the guest that chose chicken = 5/12

fraction of the guest that chose vegetarian = 1  - 1/3 - 5/12 = 1/4

we are asked to find the total number of guests in the wedding:

guests that chose vegetarian = 1/4

guests that chose vegetarian = 69

1/4 of the guest = 69

4/4 of the guest = 69 x 4 = 276

Hence there are total 276 guests in the wedding.

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No, nominal data is not rank ordered.

Nominal data, also known as categorical data, is a type of data that is used to label and classify groups of items based on characteristics and attributes.

It does not involve any measurement or numerical value and typically does not follow any order.

Nominal data is not measured in any way, so it does not have a ranking system.

In contrast, data that is rank-ordered, such as ordinal data, is measured and can be ranked from lowest to highest.

If you had a list of test scores from a group of students, the scores would be rank-ordered from lowest to highest.  

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In this the correct choice is: D. There are no relative maxima and no relative minima.

The given function is y = \(x^{3}\) - 12x + 3. To find the relative maxima and minima, we need to calculate the first and second derivatives of the function.

First, let's find the first derivative: y' = 3\(x^{2}\) - 12

Now, let's find the second derivative: y'' = 6x

To apply the second-derivative test, we need to determine the critical points by setting the first derivative equal to zero and solving for x:

3\(x^{2}\) - 12 = 0

\(x^{2}\)- 4 = 0

(x - 2)(x + 2) = 0

From this equation, we find that x = 2 and x = -2 are the critical points.

Now, let's evaluate the second derivative at these critical points:

y''(2) = 6(2) = 12

y''(-2) = 6(-2) = -12

Since the second derivative at x = 2 is positive (12 > 0) and the second derivative at x = -2 is negative (-12 < 0), the second-derivative test tells us that there are no relative maxima or minima. Therefore, the correct choice is D. There are no relative maxima and no relative minima for the given function.

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The complete question is:

Test for relative maxima and minima. Use the second-derivative test, if possible. y=x3 - 12x + 3 Select the correct choice below and, if necessary, fill in the answer box(es) to complete your choice. O A. The relative maxima occur at x = 2. The relative minima occur at -2. (Type integers or simplified fractions. Use a comma to separate answers as needed.) The relative maxima occur at x=-2. There are no relative minima. (Type an integer or a simplified fraction. Use a comma to separate answers as needed.) O C. The relative minima occur at x = 2 . There are no relative maxima. (Type an integer or a simplified fraction. Use a comma to separate answers as needed.) OD. There are no relative maxima and no relative minima.

Answer:

C

Step-by-step explanation:

Answer:

7.5

Step-by-step explanation:

1/2 is .5 as a decimal and 7 is a whole number, so 7 would replace the 0 and it will be 7.5

Answer:

26

Explanation:

\(\int\limits^{25}_{-1} {e^{x-[x]}} \, dx\)

simplify

\(\int\limits^{25}_{-1} {e^{0} \, dx\)

any variable to the power 0 is 1

\(\int\limits^{25}_{-1} 1 \, dx\)

integrating 1 gives x

\(\left[ \:x \: \right]^{25}_{-1}\)

apply limits

\(25 - (-1)\)

add terms

\(26\)

\(\\ \rm\hookrightarrow \displaystyle\int\limits_{-1}^{25}e^{x-[x]}dx\)

\(\\ \rm\hookrightarrow \displaystyle\int\limits_{-1}^{25}e^{x-x}dx\)

\(\\ \rm\hookrightarrow \displaystyle\int\limits_{-1}^{25}e^0dx\)

\(\\ \rm\hookrightarrow \displaystyle\int\limits_{-1}^{25}dx\)

\(\\ \rm\hookrightarrow \left[x\right]_{-1}^{25}\)

\(\\ \rm\hookrightarrow 25-(-1)\)

\(\\ \rm\hookrightarrow 25+1\)

\(\\ \rm\hookrightarrow 26\)

The correct option for the above equation  is b. -√5/5.

The given function is f(x)=3x^5−4x^3−3x.Therefore, we have to find out where the relative maximum of the function

occurs. So, let's begin by finding the derivative of the given function. f(x)=3x^5−4x^3−3xDifferentiating both sides w.r.t.

x, we get: f'(x)= 15x^4 - 12x^2 - 3Now, to find the relative maxima and minima, we must solve for f'(x)=0 and f''(x) !=

0.Therefore, we have: f'(x)= 15x^4 - 12x^2 - 3= 3(5x^4 - 4x^2 - 1)We have to solve for the above equation: f'(x) = 0Or

3(5x^4 - 4x^2 - 1) = 0Or 5x^4 - 4x^2 - 1 = 0. We can solve the above equation by substituting t=x^2. Hence we get:5t^2 -

4t - 1 = 0Now, using the quadratic formula, we get: t = (4 ± √36)/10So, t = (2 ± √5)/5Now, we know that f''(x) = 60x^3 -

24x.We can substitute the value of x in f''(x) to check whether the given value of x is a relative maximum or not. When

we substitute x = -√5/5, we get f''(-√5/5) = -24(√5)/5 < 0Hence, x = -√5/5 is a relative maximum. Therefore, the correct

option is b. -√5/5.

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Answer: is 13

Step-by-step explanation:

Answer:

13

Step-by-step explanation:

Answer: 26

Step-by-step explanation:

Two Angles are Complementary when they add up to 90 degrees (a Right Angle). Then

∠A + ∠B = 90

∠A =90- ∠B

∠A  = 26

Answer:

The measure of \(\angle A\):

\(\angle A = 26\textdegree\)

Step-by-step explanation:

Since both \(\angle A\) and \(\angle B\) are complementary (Which they both add up to 90°), and you want to find the measure of

Measure of \(\angle A\): unknown

Measure of \(\angle B\): 64°

Finding the measure of \(\angle A\):

\(90 - 64 = 26\)

\(\angle A = 26\textdegree\)

So, the measure for \(\angle A\) is \(26\textdegree\).

Answer: -(1/4)

Step-by-step explanation:

2x-3/4=x-3/3

=>2x-x = -3/3 + 3/4

=> x =     (-12+9)  /12                   [Taking LCM and solving]

=> x= -3/12

=> x= -1/4                   [After simplifying]

Answer: x = -1/4

Step-by-step explanation:

2x− 4/3 =x− 3/3

​

Divide 3 by 3 to get 1.

2x− 3/4 =x−1

Subtract x from both sides.

2x− 3/4−x=−1

Combine 2x and −x to get x.

x− 3/4 =−1

Add 3/4 both sides.

x=−1+ 3/4

​

Convert −1 to fraction − 4/4

​

x=− 4/4 + 3/4

​

Since − 4/4 and  3/4

​

 have the same denominator, add them by adding their numerators.

x= -4 +3 /4

​

Add −4 and 3 to get −1.

x=− 1/4

​

Answer:

16 meters

Step-by-step explanation:

Area of a circle = πr²

Diameter of a circle = 2 x r

where r = radius

If area of the circle is given, the radius can be determined by finding the square root of the area

64 πm²  = πr²

r² = 64 πm²

r = √64

r = 8m

diameter = 8 x 2 = 16m

Answer:

C. A parallelogram, and then rectangle

Answer:

Option A: 2338.3 cm² is the correct answer.

Step-by-step explanation:

Given that:

The given figure is a regular hexagon.

Length of side = 30 cm

Area of a hexagon is given by;

Area = \(\frac{3\sqrt{3}}{2}a^2\)

Putting a=30 in the formula

Area = \(\frac{3\sqrt{3}}{2}(30)^2\)

Area = \(\frac{3\sqrt{3}}{2}*900\)

Area = \(3\sqrt{3}*450\)

Area = 2338.26 cm²

Rounding off to one decimal place,

Area = 2338.3 cm²

Hence,

Option A: 2338.3 cm² is the correct answer.

Answer:do you remember what number 6 was on these ? It was a link Triangle and on the left said it had a like with the number 19 bedside it. Please get back to me

Step-by-step explanation:

Answer:

I would be Channel #2 from scream queens

Step-by-step explanation:

Why just because she was the first one that came to mind :)

Answer:

Stitch from Lilo and Stitch ^^

Step-by-step explanation:

That movie always was a favorite of mine, also, so fluffy!

(a) When performing an ANOVA with the data the alternative hypothesis is at least two of the restaurants have different mean delivery times.

(b)75.8

Analysis of variance. or ANOVA, is a statistical method that separate observed variance data into different components to use for additional tests. A one way ANOVA is used for three or more groups of data, to gain information about the relationship between the dependent and independent variables.

The ANOVA table shows how the sum of squares are distributed according to source of variation, and hence the mean sum of squares.

It is given that a pizza lover wants to compare the average delivery times.

Therefore the null hypothesis and alternate hypothesis implies that,

H₀ =  all restaurants have equal mean delivery time

Hₐ = at least two restaurants have different two deliveries

Hence the alternate hypothesis for performing an ANOVA with the data is at least two of the restaurants have different mean delivery times.

The alternate hypothesis (Hₐ) defines that there is a statistically important relationship between two variables. Whereas null hypothesis states that is no statistical relationship between the two variables.

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The probability (P) for a z-score of 0.5880 is approximately 0.7219. Therefore, the probability that the sample mean would be less than 135.6 millimeters is approximately 0.7219, or 72.19% when rounded to four decimal places.

To solve this problem, we can use the central limit theorem, which states that the distribution of sample means approaches a normal distribution as the sample size increases.

First, we need to calculate the standard error of the mean, which is equal to the standard deviation divided by the square root of the sample size:

standard error of the mean = 7 / sqrt(47) = 1.020

Next, we can calculate the z-score for a sample mean of 135.6 millimeters:

z = (135.6 - 135) / 1.020 = 0.588

Using a standard normal distribution table or calculator, we can find the probability of a z-score less than 0.588, which is 0.7211.

Using a z-table or calculator, the probability that a random sample of 47 steel bolts will have a mean diameter less than 135.6 millimeters is 0.7211, rounded to four decimal places.


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