can anyone please help i have no one to help me​

Answer:

288 sq feet is my best guess

Step-by-step explanation:

Answer:

yeah the answer is in the question just needed the points

Step-by-step explanation:

[tex]\begin{bmatrix}4 & 0 & -4& |& -8 \\0 & 1 & 0& |& -1 \\0 & 0 & 1& |& 3\end{bmatrix} \xrightarrow{\text{4R3+R1}\rightarrow \text{R1}} \begin{bmatrix}\bold{4} & \bold{0} & \bold{0}& |& \bold{4} \\0 & 1 & 0& |& -1 \\0 & 0 & 1& |& 3\end{bmatrix}[/tex]

and,

[tex]\begin{bmatrix}4 & 0 & -4& |& 4 \\0 & 1 & 0& |& -1 \\0 & 0 & 1& |& 3\end{bmatrix} \xrightarrow{\frac{1}{4} \text{R1}\rightarrow \text{R1}} \begin{bmatrix}\bold{1} & \bold{0} & \bold{0}& |& \bold{1} \\0 & 1 & 0& |& -1 \\0 & 0 & 1& |& 3\end{bmatrix}[/tex]

"A set of numbers arranged in rows and columns so as to form a rectangular array."

"A matrix formed by combining the columns of two matrices to form a new matrix."

"The mathematical operations that are performed on rows of a matrix."

For given question,

We have been given an augmented matrix.

[tex]\begin{bmatrix}4 & 0 & -4& |& -8 \\0 & 1 & 0& |& -1 \\0 & 0 & 1& |& 3\end{bmatrix}[/tex]

We need to perform the row operation 4R3 + R1 → R1

To perform above row operation,

- First multiply the third row by 4. ([tex]4R_3[/tex])

- Add the new third row (4[tex]R_3[/tex]) with the first row.

- Then replace Row 1 with the result.

The resultant augmented matrix would be,

[tex]\begin{bmatrix}\bold{4} & \bold{0} & \bold{0}& |& \bold{4} \\0 & 1 & 0& |& -1 \\0 & 0 & 1& |& 3\end{bmatrix}[/tex]

That is,

[tex]\begin{bmatrix}4 & 0 & -4& |& -8 \\0 & 1 & 0& |& -1 \\0 & 0 & 1& |& 3\end{bmatrix} \xrightarrow{\text{4R3+R1}\rightarrow \text{R1}} \begin{bmatrix}\bold{4} & \bold{0} & \bold{0}& |& \bold{4} \\0 & 1 & 0& |& -1 \\0 & 0 & 1& |& 3\end{bmatrix}[/tex]

Now, we need to perform the row operation  [tex]\frac{1}{4}[/tex] R1 → R1 on the above resultant augmented matrix.

To perform above row operation,

- Multiply the Row 1 by the reciprocal of 4.

- Then replace Row 1 with the result.

The resultant augmented matrix would be,

[tex]\begin{bmatrix}4 & 0 & -4& |& 4 \\0 & 1 & 0& |& -1 \\0 & 0 & 1& |& 3\end{bmatrix} \xrightarrow{\frac{1}{4} \text{R1}\rightarrow \text{R1}} \begin{bmatrix}\bold{1} & \bold{0} & \bold{0}& |& \bold{1} \\0 & 1 & 0& |& -1 \\0 & 0 & 1& |& 3\end{bmatrix}[/tex]

Therefore,

[tex]\begin{bmatrix}4 & 0 & -4& |& -8 \\0 & 1 & 0& |& -1 \\0 & 0 & 1& |& 3\end{bmatrix} \xrightarrow{\text{4R3+R1}\rightarrow \text{R1}} \begin{bmatrix}\bold{4} & \bold{0} & \bold{0}& |& \bold{4} \\0 & 1 & 0& |& -1 \\0 & 0 & 1& |& 3\end{bmatrix}[/tex]

and,

[tex]\begin{bmatrix}4 & 0 & -4& |& 4 \\0 & 1 & 0& |& -1 \\0 & 0 & 1& |& 3\end{bmatrix} \xrightarrow{\frac{1}{4} \text{R1}\rightarrow \text{R1}} \begin{bmatrix}\bold{1} & \bold{0} & \bold{0}& |& \bold{1} \\0 & 1 & 0& |& -1 \\0 & 0 & 1& |& 3\end{bmatrix}[/tex]

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The correlation of the values in the tables is the existence of a

relationship between the x and y values.

Correct response:

A table that shows a strong correlation is one in which the y-values can be predicted more or less accurately from the x-values.

The table that shows no correlation is one in which the x and y-values have different patterns;

The level of correlation is given by the correlation coefficient, which is found by the following formula;

[tex]\displaystyle r = \mathbf{ \dfrac{\sum \left(x_i - \overline{x} \right) \cdot \left(y_i - \overline{y} \right)}{\sqrt{\sum \left(x_i - \overline{x} \right)^2 \cdot \sum \left(y_i - \overline{y} \right)^2} }}[/tex]

By plotting the values using MS Excel, we have the values of r², for the tables as follows;

The value of r² for the first table is r² = 0.7307

Therefore;

r ≈ 0.8548 The correlation of the first table is strong.

Second table, r² = 0.8156

r = √(0.8156) ≈ 0.9031 The correlation in the second table is very strong.

Third table, r² = 0.0107

Therefore, r ≈ 0.1034

Fourth table, r² = 0.9342

Therefore, r ≈ 0.9665

The correlation of the x and y-values of the fourth table is very strong indicating the presence of a correlation.

Therefore;

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Answer:

2

Step-by-step explanation:

Answer:

B= 1.5

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Answer:

8a^3

Step-by-step explanation:

Given that;

2^x = a, we want an expression for 8^(x + 1)

we have this as;

8^(x + 1) = 8^x * 8^1

8^x = (2^x)(3)

8^x is thus same as 2^3x

So replace 2^x by a

Thus, we have a^3

Multiply this by the 8 we had initially; that will give;

8 * a^3 = 8a^3

Answer:

cevap C olabilir ama emin değilim

Answer:

-5/3

Step-by-step explanation:

We can find the slope between two points using

m = ( y2-y1)/(x2-x1)

   = ( 1-6)/(0 - -3)

   = ( 1-6)/( 0+3)

   = -5/3

Answer:

5440 acres

Step-by-step explanation:

Given: The equation a = 640s gives the relationship between s square miles and a acres. Kevin owns 8.5 square miles of farmland.

To Find: How many acres does he own.

Solution:

Area of farmland owned by kevin  

The given equation is

here  is area in acres, and  is area in square miles.

putting values in equation

Hence kevin owns   of farmland

Answer: 66

Step-by-step explanation:

From the question, we are informed that a player at a basketball camp set a goal to make 55% if his shots and that he has 120 attempts.

The number of shots that he would he need to make in order to reach his goal will be 55% of 120. This will be:

= 55% × 120

= 55/100 × 120

= 0.55 × 120

= 66

He would need to make 66 shots

Answer: Answer D, 42,000 in

Step-by-step explanation:

ok no one cares lol  lolololol

Answer: oh wow that sucks

Step-by-step explanation:

Answer:

i donk really know :(

Step-by-step explanation:

sorry

:)

Answer:

$46,053

Step-by-step explanation:

Answer:

a. 10.4m above the cliff

b. 18.4m below the cliff

c. Os or 3.1s

d. 5.1s

a) The rock be 10 m above the cliff after two seconds.

b) The rock be 20 m below the cliff after 4 seconds.

c) After 3 second it again be at the same level you threw it.

d) After 5 second it hit the water, 50 m below the cliff.

What is Multiplication?

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.  

Since, The formula for the distance,

s = ut - 1/2 gt²

Where, s is distance of an object.

u is initial velocity.

t is time taken by object.

Now,

a) Given that;

t = 2 seconds , u = 15 m/sec , g = 10 m/s

Since, s = ut - 1/2 gt²

Substitute all values we get;

s = 15 × 2 - 1/2 × 10 × 2²

s = 30 - 20

s = 10 m

Thus, The rock be 10 m above the cliff after two seconds.

b) Given that;

t = 4 second,

Then, s = ut - 1/2 gt²

s = 15 × 4 - 1/2 × 10 × 4²

s = 60 - 80

s = - 20

Hence, The rock be 20 m below the cliff after 4 seconds.

c) Given that;

s = 0 meter

Then, s = ut - 1/2 gt²

Substitute all the values,

0 = 15t - 1/2 × 10 × t²

15t - 5t² = 0

5t² - 15t = 0

5t ( t - 3) = 0

Gives, t = 0 second and t = 3second

So, After 3 second it again be at the same level you threw it.

d) Given that;

s = -50 m

Since, s = ut - 1/2 gt²

Thus, Substitute all the values we get,

- 50 = 15t - 1/2 × 10 × t²

15t - 5t² = -50

5t² - 15t - 50 = 0

5 (t² - 3t - 10) = 0

t² - 3t - 10 = 0

By using quadratic formula;

t = -(-3) ± √(-3)² - 4 × 1 × -10 / 2 × 1

t = 3 ± √9 + 40 / 2

t = 3 ± √49 / 2

t = 3 ± 7 / 2

Gives t = 3 + 7 / 2 = 5 second

and , t = 3 - 7/ 2 = -4/2 = -2 second

Thus, After 5 second it hit the water, 50 m below the cliff.

So,

a) The rock be 10 m above the cliff after two seconds.

b) The rock be 20 m below the cliff after 4 seconds.

c) After 3 second it again be at the same level you threw it.

d) After 5 second it hit the water, 50 m below the cliff.

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Answer:

9.8cm

Step-by-step explanation:

The pythagorean theorem states that, for right triangles, [tex]a^{2}+b^{2} =c^{2}[/tex]. Using this equation, we can solve for the hypotenuse.

a = 9cm

b = 4cm

c = hypotenuse

9^2 + 4^2 =c^2

81 + 16 = c^2

[tex]\sqrt{97} =c[/tex]

9.8 = c

Answer:

x < 45

Step-by-step explanation:

Let's call that number x. x/3 - 5 < 10, and we can add by five on both sides then multiply by 3 on both sides to get that x < 45.

Answer:

the answer is D

Step-by-step explanation:

makes sense...

Answer:

function A is have the best compares of the graphs

Answer:

Actual height of lighthouse = 32 m

Step-by-step explanation:

Given:

Scale height of lighthouse = 8 cm

Scale;

1 cm = 4 m

Find:

Actual height of lighthouse

Computation:

Actual height of lighthouse = Scale height of lighthouse x 4 m

Actual height of lighthouse = 8 x 4 m

Actual height of lighthouse = 32 m

Answer:

Where is the test?

Step-by-step explanation:

[tex] \frac{400}{0.12} = 400 \: feet[/tex]

[tex]400 \times 0.12 = 48[/tex]

Answer:

the height will be 11 cm

Step-by-step explanation:

As:

given,

base area = 380

volume = 4180

We know,

Base area = l * w

or, 380 = l * w

Then,

volume= l * w * h

or, 4180 = 380 * h

or, 4180/380 = h

or, h = 11

Therefore, the height will be 11 ft.

All the best!!

The height of the rectangular prism is 11 feet

The volume of the prism is given as:

Volume = 4180 cubic feet

The base area of the prism is given as:

Base Area = 380 square feet

The volume of the prism is calculated as:

[tex]Volume = Bh[/tex]

Where, B represents the base area and h represents the height

So, we have:

[tex]4180= 380 \times h[/tex]

Divide both sides by 380

[tex]11 = h[/tex]

Rewrite the equation as:

[tex]h =11[/tex]

Hence, the height of the rectangular prism is 11 feet

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Answer:

x= 20

Step-by-step explanation:

set up a proportion:

(2x - 4)/24 = 39 / (x + 6)

(2x - 4)(x + 6) = 936

2x^2 + 8x - 24 = 936

x^2 + 4x - 12 = 468

x^2 + 4x - 480 = 0

(x - 20)(x + 24) = 0

x= 20, -24

has to be positive so x = 20

Answer:

4

Step-by-step explanation:

because subtract 4+7 which is 11 from 19 which is 7 and 4x3 equals 9 so X is 3

Answer:

80cm²

Step-by-step explanation:

Area of parallelogram =base×height

B=16cm

H=5

Area=16×5

80cm²

Hope this helps you :)

Step-by-step explanation:

area= b×h

area= 16cm × 5cm

area= 80 cm²

Answer:

9.099 seconds

Step-by-step explanation:

The rock hits the surface of the moon when is t is 0.

[tex]-t^2 + 8t + 10 = 0\\t^2 - 8t - 10 = 0[/tex]

Use the quadratic formula

t = -1.099 and 9.099

Since time can't be negative, the answer is t = 9.099

Answer:

I think the answer is 1 7/9

Answer:

-4, 6, 16, 26

Step-by-step explanation:

For each y-value, all you need to do is put x into the function or equation wherever there is an x, and the result will be the y-value.

When x = 0; y = 2(0)-4, or y = -4.

When x = 5; y = 2(5)-4 = 10-4 = 6

When x = 10; y = 2(10)-4 = 20-4 = 16

When x = 15; y = 2(15)-4 = 30-4 = 26

Answer:

D. 2.69 lb is your answer

13vases=34.97lb

1 vase=34.97/13=2.69lb

Answer:

Discount:

20% is .2 as a decimal, so you multiply the value of 12 by .2

12(.2)=2.4

The discount is $2.40

Sale Price:

subtract 2.4 from the price of the original price

12-2.4=9.6

The sale price is $9.60

Step-by-step explanation:

Answer:

Each can of soda will cost $0.37

Step-by-step explanation:

First you write 24/8.99 = 1/x because you are trying to find the cost for 1 soda

24/8.99 = 1/x

Then you cross multiply.

24*x  8.99*1

24x=8.99

Divide each side by 24

24x/24=8.99/24

x=0.374583

Round it to the nearest hundredths place.

x=0.37