I need help I’m stuck!

(1) The result of the row operation R₂ ↔ R₃ is [ -5   1    0    8]

                                                                            [  8  8    -7   5 ]

                                                                            [ 2   2     6   -5]

(2) The result of the row operation  3R₁ ↔ R₁ is  [24  - 27   -21   - 18]

                                                                                [8       9      -4      -5]

                                                                                 [2       2       -7     -8]

The result of the row operation in the matrix is calculated as follows;

R₂ ↔ R₃, implies changing row 2 and row, and the result would be;

[ -5   1    0    8]

[  8  8    -7   5 ]

[ 2   2     6   -5]

The result of obtained from 3R₁;

3R₁ = [24  - 27   -21   - 18]

3R₁ ↔ R₁ is determined as; (the row interchange)

[24  - 27   -21   - 18]

[8       9      -4      -5]

[2       2       -7     -8]

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Answer: 7

Step-by-step explanation:

Since there are 42 tubes and each tray can hold 6 tubes, it will be 42/6 which is 7.

So, "down" is the translation direction, while "7 units down" is the number of units.

A right triangle's hypotenuse is its longest side, its "opposite" face is the one which faces a certain angle, and its "adjacent" side is the one that faces the angle in question. To define the side of right triangles, we utilize specific terminology.

We must change a point's x and y coordinates by the same amount in order to translate it. Let's calculate the difference between Y and Y′'s coordinates:

Difference in x-coordinates = 2 − 2 = 0

Difference in the y-coordinate = −2 − 5 = −7

This reveals that in the y-direction, Y′ is 7 units lower than Y. Hence, we must translate its entire triangle 7 units down inside the y-direction in order for Y to shift to Y′.

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So, "down" is the translation direction, while "7 units down" is the number of units.

A right triangle's hypotenuse is its longest side, its "opposite" face is the one which faces a certain angle, and its "adjacent" side is the one that faces the angle in question. To define the side of right triangles, we utilize specific terminology.

We must change a point's x and y coordinates by the same amount in order to translate it. Let's calculate the difference between Y and Y′'s coordinates:

Difference in x-coordinates = 2 − 2 = 0

Difference in the y-coordinate = −2 − 5 = −7

This reveals that in the y-direction, Y′ is 7 units lower than Y. Hence, we must translate its entire triangle 7 units down inside the y-direction in order for Y to shift to Y′.

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\(QUESTION:\)

\(WORK\) \(OUT\) \(THE\)  \(VALUE\) \(OF\) \(2^{6}\)

Or 2 times 2 times 2 times 2 times 2 times 2 times 2

\(ANSWER:\)

So, 2^6 is:

64

Now, 7^4 is:

2,401

Hope it helps!

\(Grace Rosalia\)

Answer:

a) 2x2x2x2x2x2=64

b)7x7x7x7=2401

First we must find the opposite-reciprocal of the original slope.

current slope: \(\frac{7}{3}\)

new slope: \(-\frac{3}{7}\)

Using the new slope and the given point, we will plug them into slope-intercept form and solve for b, the y-intercept.

\(9 = -\frac{3}{7}(-4) + b\\\\9 = \frac{12}{7} + b\\\\-\frac{51}{7} = b\)

The y-intercept is \(-\frac{51}{7}\).

Now, we can write the formula for the new line.

Slope-intercept form: \(y = -\frac{3}{7}x - \frac{51}{7}\)

Point-slope form: \(y - 9 = -\frac{3}{7}(x + 4)\)

Answer:

Heres this!!

Step-by-step explanation:

The formula to find the surface area of a rectangular prism is A = 2wl + 2lh + 2hw, where w is the width, the l is the length, and the h is the height.

Answer: x=20

Step-by-step explanation:

The two angles are vertically opposite so they are equal to each other

7x-99=2x+1

5x=100

x=20

the formula for y in terms of x and c is y = c⁵ / √x. we can solve this by  inversely proportional rule .

what is inversely proportional ?

Two quantities are said to be inversely proportional if an increase in one quantity results in a decrease in the other quantity, and vice versa. In other words, as one quantity increases, the other quantity decreases at the same rate

In the given question,

We are given that 17y is inversely proportional to √(x), which can be written as:

17y ∝ 1/√x

Using proportionality constant k, we can write:

17y = k / √x

Now, we are also given that y = c⁴ when x = c². We can use this information to solve for k:

17y = k / √x

17c⁴ = k / √c²

17c⁴ = k / c

k = 17c⁵

Substituting the value of k in the original equation, we get:

17y = (17c⁵) / √x

Simplifying further, we can write:

y = c⁵ / √x

Therefore, the formula for y in terms of x and c is:

y = c⁵ / √x

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9514 1404 393

Answer:

Step-by-step explanation:

The amortization formula can be used to find the payment value.

  A = P(r/2)/(1 -(1 +r/2)^(2n))

where P is the principal amount at the beginning of the loan period, r is the annual interest rate, n is the number of years remaining on the loan

The value of A in this scenario is the semi-annual payment.

Initially, the interest rate is 0.055 and the number of years remaining is 25.

After the first 5-year period, the interest rate goes up by 12%, so is multiplied by a factor of 1.12 to become 6.16% per year. The same growth factor is applied to the interest rate at the beginning of each 5-year period.

Of course, the number of years remaining is decreased by 5 years at the beginning of the next 5-year period.

__

The Principal remaining at the end of each 5-year period is the starting principal for the next period. It is calculated from ...

  FV = P(1 +r/2)^10 -A((1 +r/2)^10 -1)/(r/2)

Where P is the starting principal, A is the loan payment as calculated above, and r is the annual interest rate.

__

These formulas are built into spreadsheet functions, so the desired set of loan payments can be calculated easily by that technology. The result is attached. In the "# pmts" column is the value used to amortize the loan for the 5-year period. The semiannual payment is calculated as though the loan would be completely paid off in that number of payments, keeping the same interest rate for the duration. Of course, that payment series is interrupted and the loan recalculated at the beginning of the next 5 years.

The half-yearly payments for each 5-year interval are ...

  $33,336.83

  $35,176.68

  $36,869.23

  $38,266.75

  $39,158.08

_____

Additional comment

The values displayed in the spreadsheet are rounded to the values shown. The values used in calculation have 14 or more significant digits. This means the numbers here may vary from those provided by a lending institution. In the real world, the principal and interest values are rounded to cents with each payment, so actual results may vary by a few cents either way.

The linear function parallel to the line represented by y = 3x/4 - 1/2 is given as follows:

y = 3x/4 + 1/2.

The slope-intercept equation for a linear function is presented as follows:

y = mx + b

In which:

When two lines are parallel, they have the same slope.

The slope of the line y = 3x/4 - 1/2 is given as follows:

m = 3/4.

Hence the equation of the parallel line is given as follows:

y = 3x/4 + 1/2.

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There are 331 ways when 66 identical coins can be separated into three nonempty piles

Let the piles have a, b and c coins, with 0<a <b <c. Then, let b=a+k₁, and

c=b+k₂, such that each ki≥1.

The sum is then a+a+k₁+a+k₁+k₂= 66 ⇒ 3a+2k₁+k₂ = 66.

This is simply the number of positive solutions to the equation

3x+2y+z = 66.

If a = 1, then 2k₁ + k₂ = 63⇒ 1≤k₁ ≤31. Each value of k₁ corresponds to a unique value of k₂, so there are 31 solutions in this case.

Similarly, if a = 2, then 2k₁+k₂= 60⇒ 1≤k₁ ≤29, for a total of 29 solutions in this case.

If a = 3, then 2k₁+ k₁= 57 ⇒ 1 ≤ k₁ ≤28, for a total of 28 solutions.

In general, the number of solutions is just all the numbers that aren't a multiple of 3, that are less than or equal to 31.

We then add our cases to get

=1+2+4+....31=1+2+3+...31-3(1+2+3+...10)

=31*(32)/2-3(55)

=31*16-165

=496-165

=331

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Answer:

It will take them 3.5 hours to paint the room.

Step-by-step explanation:

Step 1: Add the number of hours it takes them together

    A. 6 + 8

Step 2: Divide the total number of hours by two (since two people are working together)

    B. 12 / 2 = 7 hours

Step 3: Divide by two again since you now have twice the speed

    C. 7 / 2 = 3.5 hours

Answer:

All of the above, except for 'What is the name of the doctor at Healthy Kids Pediatrics?'

Step-by-step explanation:

What is your favorite television show that you watched this week? - If we define your favourite show as that which you watched most, you could gather data here on time spent watching each show to determine the answer

What store in the mall are you most likely to purchase apparel from? - Similar to before, data on your previous trips to the mall could be gathered to determine which stores you have been to the most often, and using this make a prediction of the most likely you are to purchase apparel from

How many students at your school have a skateboard? - Here data could be gathered by asking which students have a skateboard and which do not

What is the name of the doctor at Healthy Kids Pediatrics? - This question only has an answer, and it would be the name of the doctor

Answer:

How many students at your school have a skateboard?

Step-by-step explanation:

Since it is asking multiple people it can result in data. It can't result in data if it asks just one question to someone

Answer:

(15*5)sq ft

=75 sqft

Step-by-step explanation:

Answer:

events at A and B are independent because P(A)(B)≠P(A)

Answer:

B is the correct answer

Step-by-step explanation:

Angles 1, 2, and 3 added together should make 180 degrees.

So, if angle 2 is 70 degrees, you subtract 70 from 180 (180-70=110) and you're left with 110 degrees.

Angle 1 and 3 add together should make 110 degrees which makes B the only true statement.

1. Using an exponential equation, the number of dinners that the Tennis Center should prepare to maximize its profits is 1,800.

2. The maximum profit is $2,740.

An exponential equation is an exponential function that has a variable exponent.

Exponential functions are written in the form of y = ab^x, which identifies the common ratio (b) and the y-intercept.

y = -0.001x^2 + 3.6x- 500

y = -0.002x + 3.6 = 0

x = 3.6/.002

= 1800  dinners

y = -0.001(1800)^2 + 3.6(1800) -500 = max profit

= 1.8(1800) + 6,480 -500

= -3,240 + 5,980

= $2,740

Thus, 1,800 dinners are expected to generate a maximum profit of $2,740.

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Answer:

11

Step-by-step explanation:

h = 15 yards

Volume = 475.17 cubic yards

Diameter = 5.5*2 = 11.0 = 11 yards

If the perpendicular from chord is x, the length of cord is 11.3 and diameter be 15.5 then the value of x is 4.54.

Given Perpendicular from center to chord is x. The length of cord be 11.3 and the diameter be 15.5.

Perpendicular means a line on other line making an angle of 90 degrees. Cord is the length of line joining two points on a circle and is different from radius or diameter. We know that the formula of calculating the length of chord is as under:

l=\(2\sqrt{r^{2} -d^{2} }\)

now put the value of l=11.3 and r=15.5/2=7.25

11.3=\(2\sqrt{7.25^{2} -x^{2} }\)

11.3/2=\(\sqrt{52.5625-x^{2} }\)

5.65=\(\sqrt{52.5625-x^{2} }\)

squaring both sides

\(5.65^{2} =52.5625-x^{2}\)

31.9225=52.5625-\(x^{2}\)

31.9225-52.5625=-\(x^{2}\)

-20.64=-\(x^{2}\)

20.64=\(x^{2}\)

x=4.54

Hence if the length of cord is 11.3 and diameter is 15.5 then the value of x is 4.54.

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Answer:

90  berries

Step-by-step explanation:

To find the area of a parallelogram, you need to multiply the base by the height. In this case, the given dimensions are 60ft (base) and 67ft (height), and you need to subtract 52ft from the height.

New height = 67ft - 52ft = 15ft

Area of the parallelogram = Base * Height = 60ft * 15ft = 900 square feet.

Therefore, the area of the parallelogram is 900 square feet.

~~~Harsha~~~

The pounds of cheese that Mr Sharma used is 25 / 48 pounds

From the information, Mr sharma has 3/4 pounds of swiss cheese and 2/3 pounds of cheddar cheese. he uses 1/4 of the swiss cheese and 1/2 of the cheddar cheese.

The cheese that was used will be:

= (1/4 × 3/4) + (1/2 × 2/3)

= 3/16 + 1/3

= 9/48 + 16/48

= 25 / 48

He used 25/48 pounds.

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Answer:

Mean = 7

Step-by-step explanation:

The mean is all the numbers added together divided by the number of numbers.

\(\frac{7+0+11+10}{4}\)

\(\frac{28}{4}=7\)

Answer:

7

Step-by-step explanation:

To find the mean, add up all the numbers then divide by the number of numbers

( 7+0+11+10) /4

28/4

7

The mean is 7

Using Scale Factor, the value of x = 33.6.

The ratio of the scale of an original thing to a new object that is a representation of it but of a different size is known as a scale factor (bigger or smaller).

Scale factor = Dimension of the new shape / Dimension of the original shape is the fundamental formula used to calculate it.

The formula is expressed as Scale factor = Larger figure dimensions Smaller figure dimensions in the event that the original figure is enlarged.

Dimension of the large triangle divided by the little triangle is the formula to utilize.

Based on the accompanying figure,

The little triangle's corresponding side length is 28, whereas the giant triangle's side length is x.

Scale factor = 6/5 Scale factor = 6/5 = 28

x = 33.6

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Complete Question -

If the figures below are similar with a scale factor of 6:5, find the value of x

Each function on the left should be matched to all points on the right that would be located on the graph of the function as follows;

f(x) = 2x + 2         ⇒   (0, 2).

f(x) = 2x² - 2        ⇒   (-1, 0).

\(f(x) = 2\sqrt{x+1}\)   ⇒   (0, 2).

In Mathematics and Geometry, a function is a mathematical equation which defines and represents the relationship that exists between two or more variables such as an ordered pair in tables or relations.

Next, we would determine the point or ordered pair that represent a solution on the graph of each of the function as follows;

For the ordered pair (0, 2), we have:

f(x) = 2x + 2

2 = 2(0) + 2

2 = 2 (True).

For the ordered pair (-1, 0), we have:

f(x) = 2x² - 2

0 = 2(-1)² - 2

0 = 2 - 2

0 = 0 (True).

For the ordered pair (0, 2), we have:

\(f(x) = 2\sqrt{x+1}\\\\2= 2\sqrt{0+1}\\\\2 = 2\sqrt{1}\)

2 = 2 (True).

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Answer: THE ANSWER IS 3 BECAUSE I HAD THIS TEST

RATE BRAINLIEST PLEASE

Step-by-step explanation:

8 + 24 = 32 feet long

Area = length x width

384 = 32 x width

Width = 384/32

Width = 12 feet

Answer: The room is 12 feet wide.

Step-by-step explanation: 8+24= the total length of the room. The area of anything divided by either the width or the length always gives you the missing measurement. So, 8+24=32. 384/32=12. You can check any answer you get doing one operation by taking the information you get and preforming the inverse (opposite) operation. Since the opposite of division is multiplication, all you have to do to check your answer is this: 32*12=384.

Answer:

52

Step-by-step explanation:

78 divided by 3 is 26

26 times 2 is 52