Use a cofunction to write an expression equal to sec 12 π 믐 sec 0 sin ☐cot - 12 = a X B ☐cos ☐tan sec csc Ś

To collapse worksheet rows to display only subtotals and the grand total, and then display individual records for the Appliances subcategory, follow these steps:

Step:1. Select the range of data in your worksheet that you want to collapse, including the headers, subcategory rows, and subtotal rows.
Step:2. Go to the Data tab in the Excel toolbar.
Step:3. Click on the Group button (located in the Outline section) and choose the Group option from the drop-down menu.
Step:4. Excel will create row level buttons with minus (-) symbols to the left of your data. Click on the row level button with the number "2" to collapse the rows and display only the subtotals and grand total.
Step:5. Locate the subtotal row for the Appliances subcategory. To the left of this row, you should see a show details button with a plus (+) symbol.
Step:6. Click on the show details button to display individual records for the Appliances subcategory.
By following these steps, you have successfully collapsed the worksheet rows to display only subtotals and the grand total, and then used the show details button to display individual records for the Appliances subcategory.

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Answer:

3rd one

Step-by-step explanation:

Range goes to the y-values

The y values are 16 19 and 16

So the range will be (16,19)

ΔXYZ will also be an equilateral triangle.

What is equilateral triangle?

An equilateral triangle in geometry is a triangle with equal-length sides on all three sides. In the well-known Euclidean space, an equilateral triangle also is equiangular, meaning that each of its three internal angles is 60 degrees and congruent with the others. It's also referred to it as a regular triangle because it is a regular polygon.

As X,Y,Z are the midpoints of sides of equilateral triangle so when we will join the X,Y,Z we will find that distances XY=YZ=XZ are three are equal because this is proved by similarity of triangles which in itself is a detailed and vast topic

Hence XYZ will also be an equilateral triangle

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The teacher could use a hypothesis test for a population mean in the following situation:

The teacher wants to determine if computer-based instruction has a statistically significant effect on the average test scores of students in the class. The teacher can collect a sample of test scores from students who received computer-based instruction and a sample of test scores from students who did not receive computer-based instruction. Then, the teacher can use a hypothesis test for the population mean to compare the mean test scores of the two groups and determine if the difference is statistically significant.

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Complete question:

teacher is experimenting with computer-based instruction In which situation could the teacher use a hypothesis test for a ifference in two population means?

O The teacher uses a combination of treditional methods and computer based instruction She asks students # they lked computer based instruction better She wants to determine if the maorty prete the computer-based instruction

O She gives each student a pretest Then she teaches a lesson using a computer program Afterwards, she gives each student a postest The teacher wants to see f the difference in scores willshow an improvement 。

She ran om y d des the class into t goups One gup ecerves computer based instruction The other group recen es tradit na n rete wit t copters Ahe rst eten een student ha to solve a single problem. The teachers wants to compare the proportion of each group who can solve the problem 。She gives each student a pretest he then randomly dvides the class mto two groups.

Ο e group receves compte based i struct . The other go p eceves tradtind rst cto with t computers After instruction each student takes a post test. The teacher compares the improvement in scores (post test minus pretest) in the two groups

Answer:

28/5

Step-by-step explanation:

7 x 4/5 = 28/5

use keep, change, flip

Answer:

28/5

Step-by-step explanation:

just did it on khan academy.

Since we are looking for the value of f(7), we need to find the corresponding output value when the input is 7. From the given function, we see that input 7 corresponds to output 2. f(7) = 2.

To determine the value of f(7), we need to look at the given function f and substitute 7 for the independent variable.

The function f is defined by the ordered pairs (7,2), (9,7), (4,9), and (3,4). The first value in each ordered pair represents the input, while the second value represents the output.

In summary, when we substitute 7 for the independent variable in the given function f = (7,2), (9,7), (4,9), (3,4), we find that f(7) = 2.

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The set of sides (Square root of 6,8, Square root of 70) could be used to form a right-angle triangle.

Option (C) is correct.

What is a Pythagorean Triplet?

Pythagorean triples are defined as a²+b² = c², where a, b, and c are positive integers. These triples are denoted as (a, b, c). The perpendicular is a the base is b, and the hypotenuse is c of a right-angled triangle. The most well-known and tiniest triplets are (3,4,5).

For option (C), the set of sides is  (Square root of 6,8, Square root of 70).

Let the largest side in the above set is c = \(\sqrt{70}\)

so a = \(\sqrt{6}\) and b= 8,
Now by using the Pythagorean triplets property,

         LHS = a² + b²

                 = \((\sqrt{6})^2 + 8^{2}\)

                 = 6 + 64

                  = 70 -----------------(I)

Now, RHS = c²

                 = \((\sqrt{70})^2\)

                  = 70 -----------------(II)

By using (I) and (II), we can say that, LHS = RHS,

So the given set of sides holds the property of Pythagorean triplets.
Hence, the set of sides (Square root of 6,8, Square root of 70) could be used to form a right-angle triangle.

Option (C) is correct.

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The exercise involves finding the product C = AB, where matrix A is given by [2 9] and matrix B is given by [3 6 1]. We need to perform the matrix multiplication to obtain the resulting matrix C.

Let's calculate the matrix product C = AB step by step:

Matrix A has dimensions 2x1, and matrix B has dimensions 1x3. To perform the multiplication, the number of columns in A must match the number of rows in B.

In this case, both matrices satisfy this condition, so the product C = AB is defined.

Calculating AB:

AB = [23 + 912 26 + 94 21 + 95]

[103 + 612 106 + 64 101 + 65]

Simplifying the calculations:

AB = [6 + 108 12 + 36 2 + 45]

[30 + 72 60 + 24 10 + 30]

AB = [114 48 47]

[102 84 40]

Therefore, the product C = AB is:

C = [114 48 47]

[102 84 40]

In summary, the matrix product C = AB, where A = [2 9] and B = [3 6 1], is given by:

C = [114 48 47]

[102 84 40]

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Answer:

3 + y = 18

y = 18 - 3

y = 15

Step-by-step explanation:

brainliest plz

15 is the answer.

3+15=18

Answer:

The tanks by volume per fish from least to greatest:

Tank C, Tank A, Tank B

Step-by-step explanation:

A pet store has three fish tanks, each holding a different volume of water and a different number of fish.

Order the tanks by volume per fish from least to greatest.

Tank A holds 40 L and 5 fish.

= 40L/5 fishes

= 8 volume per fish

Tank B holds 100 L and 12 fish

= 100L/12 fishes

= 8.3333333333 volume per fish

Tank C holds 180 L and 23 fish.

= 180L /23 fish

= 7.8260869565 volume per fish

The tanks by volume per fish from least to greatest

Tank C, Tank A, Tank B

Answer:

Step-by-step explanation:

\(10[2x-4]=100\\\\\mathrm{Divide\:both\:sides\:by\:}10\\\frac{10\left(2x-4\right)}{10}=\frac{100}{10}\\\\Simplify\\2x -4=10\\\\\mathrm{Add\:}4\mathrm{\:to\:both\:sides}\\2x-4+4=10+4\\\\Simplify\\2x =14\\\\\mathrm{Divide\:both\:sides\:by\:}2\\\frac{2x}{2}=\frac{14}{2}\\\\Simplify\\x = 7\)

By solving the given equation, we have determined that x is equal to 1/500.

The given equation is "1/25 = 5x4". We need to solve this equation to find the value of "x".

To solve the equation, we will perform the following steps:

Step 1: Multiply both sides of the equation by 25 to eliminate the denominator:

(1/25) * 25 = (5x4) * 25

1 = 125x4

Step 2: Simplify the right-hand side of the equation:

1 = 500x

Step 3: Divide both sides of the equation by 500 to isolate x:

1/500 = x

Hence, the value of x is 1/500. Therefore, the correct option is x = 1/500.

Thus, by solving the given equation, we have determined that x is equal to 1/500.

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The sheets of metal on the roof must be parallel to each other in order to be perpendicular to the top line of the roof. This means that the sheets of metal are parallel to each other and that their relationship is one of parallelism. This parallelism is necessary so that the roof can maintain its structure and be waterproof.

The relationship between sheets of metal on a roof is one of parallelism. This is because each sheet must be perpendicular to the top line of the roof in order to maintain the structure and be waterproof. In order for the roof to remain secure and waterproof, the sheets must be parallel to each other. This parallelism is necessary in order for the roof to form one complete structure and for the sheets to remain secure. Without the parallelism of the sheets, the roof would be unable to maintain its structure and could easily be damaged by wind and rain. This is why the relationship between the sheets of metal on a roof is one of parallelism.

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the joint probability distribution for x and y is as follows:

f(x, y): x=0, y=0: 1/9

x=0, y=1: 2/9

x=1, y=0: 2/9

x=1, y=1: 4/9

Based on the given information, we can determine the marginal probability distributions for x and y:

For x:

f(x=0) = 1/3

f(x=1) = 2/3

For y, since it is independent of x, the probabilities remain the same:

f(y=0) = 1/3

f(y=1) = 2/3

To find the joint probability distribution, we multiply the probabilities for x and y since they are independent:

f(x=0, y=0) = f(x=0) * f(y=0) = (1/3) * (1/3) = 1/9

f(x=0, y=1) = f(x=0) * f(y=1) = (1/3) * (2/3) = 2/9

f(x=1, y=0) = f(x=1) * f(y=0) = (2/3) * (1/3) = 2/9

f(x=1, y=1) = f(x=1) * f(y=1) = (2/3) * (2/3) = 4/9

Therefore, the joint probability distribution for x and y is as follows:

f(x, y):

x=0, y=0: 1/9

x=0, y=1: 2/9

x=1, y=0: 2/9

x=1, y=1: 4/9

This represents the probabilities for each possible combination of x and y.

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Answer:

John got 13 questions right and 2 questions wrong.

Step-by-step explanation:

15 questions right equals 100%.

100 {divided by} 15 = % for each question right

Each question is worth (100 diveded by 15) 6.7%.

84% {diveded by} 6.7% = 12.5

100% - 84% = 16%

16% {divided by} 6.7% = 2.38

Because 12.5 has a higher dicimle value than 2.38 and when the amount he got right is added to the amount he got wrong it needs to equal 15, 12.5 becomes 13 and 2.38 becomes 2.

Answer:

\(\frac{n}{15} =\frac{84}{100}\)

\(n = \frac{21}{25}*5\)

\(n = \frac{21*15}{25}\)

\(n = \frac{315}{25}\)

\(n = \frac{63}{5} or 12.6\)

Answer:-1

Step-by-step explanation:

Answer:

tbh I don't know either that's what brainley is for ☺️

Answer:

Step-by-step explanation:

let the eq. of parabola be

y=ax²+bx+c

points (-1,0),(2,0),(3,4) and (0,-2) lie on it.

0=a-b+c

0=4a+2b+c

subtract

3a+3b=0

a=-b

4=9a+3b+c

-2=0+0+c

c=-2

a-b-2=0

-b-b-2=0

-2b-2=0

b+1=0

b=-1

a=-b=-(-1)=1

eq. of parabola is

y=x²-x-2

Answer:

A) the set of integers is commutative under operation '-'

The commutative property holds for Addition and Multiplication, but not for subtraction and division.

So, option (D) is correct.

The commutative property states that the numbers on which we operate can be moved or swapped from their position without making any difference to the answer.

The commutative property holds for Addition and Multiplication,

Example,   \(2+4=4+2\)

                  \(3*2=2*3\)

The commutative property does not  holds for subtraction and division.

Example,       \(3-2\neq 2-3\)

                    \(4/2\neq 2/4\)

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⅘×25=20

of means times.

Answer:

none of those answers are correct unless u mean 5 and 3/4

Step-by-step explanation:

Answer:

The probability that Cormac takes a lime flavoured sweet is 9/16.

Probability is the occurence of likely events. It is the area of mathematics that deals with numerical estimates of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1.

The following can be deduced:

number of lime = 9

number of strawberry = 4

number of orange = 3

Total = 16

Probability of picking a lime will be:

= Number of lime / Total

= 9/16

The probability is 9/16.

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Complete question

The sweets are lime flavoured or strawberry flavoured or orange flavoured.

In the bag

number of lime = 9

number of strawberry = 4

number of orange = 3

Answer:

1. THERE S NO JI ON THE FIGURE???

2. 2/3 is scale factor

Step-by-step explanation:

pls mark brainliest and hope this helps :)

If the conditions for a binomial distribution are met, the variance, given the number of trials (n) and the probability of success(p) is given as:

Given:

n = 170

p = 0.7

Solution

By substituting the given values, the variance is:

Answer: 35.7

Answer:

3√6

Step-by-step explanation:

\( {a}^{2} = {b}^{2} + {c}^{2} \)

\( = {1}^{2} + {( \sqrt{53} )}^{2} \)

\( = 1 + 53\)

\( {a}^{2} = 54\)

\(a = \sqrt{54} = 3 \sqrt{6} \)

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.