I need help with this before 9

The surface area of the cube is 1536 ft².

We have,

The cube can be seen as 6 square areas in the net.

So,

The surface area of the cube.

= 6 x area of one square surface.

Now,

Side = 16 ft

Area of one square surface.

= side²

= 16²

= 256 ft²

Now,

The surface area of the cube.

= 6 x area of one square surface.

= 6 x 256

= 1536 ft²

Thus,

The surface area of the cube is 1536 ft².

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Answer:

Both were major port cities. (A)

Step-by-step explanation:

Answer:

The correct answer is A. Both were major port cities

Step-by-step explanation:

I am 100% sure

Answer:

B) 2

Step-by-step explanation:

Is BK bisecting CD?

x + 1 = 2x -1  Subtract x from both sides

1 = x -1  Add 1 to both sides

2 = x

Answer:

The answer is 19/2.

Step-by-step explanation:

Alternatives are 9 1/2 and 9.5.

Brainliest? Thanks!

Answer:

3 and 2/5

Step-by-step explanation:

because when it says divide it means take away and the denominator is the same so it stays the same

Answer:

y = 10

Step-by-step explanation:

given DEFG = SPQR

QR = FG

=> 2x - 4 = 12

=> 2x = 16

=> x = 8

angle PQR = EFG

=> 6y + x = 68

=> 6y + 8 = 68

=> 6y = 60

=> y = 10

Answer:

The coefficient of x is 2.

Step-by-step explanation:

1) Add the numbers

7y + 4x + 4 - 2x + 8

7y + 4x + 12 - 2x

2) Combine like terms

7y + 4x + 12 - 2x

7y + 2x + 12

3) Rearrange items

7y + 2x + 12

2x + 7y + 12

Step-by-step explanation:

f(-xl= 6(-x)^2 - 1/(-x)^2

=6x^2- 1/x^2

f(x)= f(-x)

It is an even function

Answer:

-17/12

Step-by-step explanation:

║5/6 - 7/12║- ║5/3║

= ║10/12 - 7/12║ - ║5/3║

= ║3/12║- ║5/3║

= 3/12 - 5/3

= 3/12 - 20/12

= -17/12

Answer:

b)  7

Step-by-step explanation:

Given equation:

\((\sin x + \csc x)^2+(\cos x + \sec x)^2=k+\tan^2 x + \cot^2 x\)

Expand the left side of the equation:

\(\implies \sin^2x+2 \sin x \csc x + \csc^2x + \cos^2 x + 2 \cos x \sec x + \sec^2 x\)

Simplify:

\(\implies \sin^2x+2 \sin x \cdot \dfrac{1}{\sin x} + \csc^2x + \cos^2 x + 2 \cos x \cdot \dfrac{1}{\cos x} + \sec^2 x\)

\(\implies \sin^2x+2 + \csc^2x + \cos^2 x + 2 + \sec^2 x\)

\(\implies \sec^2 x+\csc^2x+ \sin^2x + \cos^2 x +4\)

Use the identity:   sin²x + cos²x = 1

\(\implies \sec^2 x+ \csc^2x+1+4\)

\(\implies \sec^2 x+ \csc^2x+5\)

Use the identities:  sec²x = tan²x + 1  and  csc²x = cot²x + 1

\(\implies \tan^2x +1 +\cot^2x +1 +5\)

\(\implies 7+\tan^2x + \cot^2x\)

Therefore:

\((\sin x + \csc x)^2+(\cos x + \sec x)^2=7+\tan^2 x + \cot^2 x\)

\( \huge{ \bold{Answer -: }}\)

Option b is correct

\( \large \bf{given}\)

\( \large{ \sf{ \: (sin \: x \: + cosec \: x) {}^{2} + (cos \: x + sec \: x) {}^{2} }}\)

\(\large{ \sf{ = k + { \tan^{2} x + \cot^{2} x}}}\)

\( \large{ \sf{\implies \: sin {}^{2} x + cosec {}^{2} x + 2 + {cos}^{2} x + {sec}^{2} x + 2}}\)

\(\large{ \sf{ = k + {tan}^{2} x + {cot}^{2} x}}\)

\(\large{ \sf{ \implies \: 1 + {cosec}^{2} x - {cot}^{2} x + {sec}^{2} x - {tan}^{2} x + 4 = k}}\)

\(\large{ \sf{ \pink{ \implies \: 1 + 1 + 1 + 4 = k \implies \: k = 7}}}\)

\( \therefore \: k \: = 7\)

Answer:

60%

Step-by-step explanation:

Answer:

1) Sometimes

2) Always

3) Never

4) Always

5) Sometimes

Step-by-step explanation:

1) Sometimes

2) Always

3) Never

4) Always

5) Sometimes

The expression (sinx + cosx)^2 + (sinx - cosx)^2 simplifies to

To simplify the expression (sinx + cosx)^2 + (sinx - cosx)^2 using trigonometric identities, we can expand and simplify the expression.

Expanding the squared terms

(sin^2x + 2sinxcosx + cos^2x) + (sin^2x - 2sinxcosx + cos^2x)

Using the trigonometric identity sin^2x + cos^2x = 1, we can simplify further:

(1 + 2sinxcosx + 1) + (1 - 2sinxcosx + 1)

Simplifying the expression, we have:

2 + 2sinxcosx + 2

Combining like terms, we get:

4 + 2sinxcosx

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Answer:

یه گل یک گل بام میی مه فیلم بام حس بام حس فمس یکم باشگاه هی یک گل یه حس سیم هی فکریه خشک پیل هر یک حس صب زی صب هم گچ نی بلن هر بر قل هم بی دو حس قیین

Step-by-step explanation:

سبک حس بام نی شیک حس

یا کمی سیم حس او

نی یک حس بکشم یک حس بام نی که خیلی تنیام که اما الا دیه انجام نمییم ای موضوع که دعوا خیلی تخفیف خیلی خوعه ای موضوع که اما الا دیمش خوش

۳ خشک هی یک هی بام نی با که اما ۷غ هه بام نی بلن کف بام نی بکر

به نمییم هی بام میی لاک حس بام

بلن هی یک

حالم ای زبونه فراموش که

فخ بیم فک

Answer:

x = 4

Step-by-step explanation:

We know that M is the mid-point of AB. So,

AM = BM ( A mid point divides a line segment into 2 equal parts. )

Also it's given that length of AM is 20 & length of BM is 3x + 8.

But as AM = BM ,

\(20 = 3x + 8\)

\( = > 3x = 20 - 8 = 12\)

\( = > x = \frac{12}{3} = 4\)

Step-by-step explanation:

I hope this answer is helpful ):

Rounded to the nearest hundredth, the value of y at \(x = 7\) is approximately \(12.78\), according to the concept of linear regression line.

To find the linear regression line for the given data, we can use statistical software or a calculator. The equation of the linear regression line is of the form \(y = mx + b\), where m represents the slope and b represents the y-intercept.

Using the provided data, the linear regression line equation is:

\(\[ y = 1.3642x + 3.2324 \]\)

To find the value of \(y\) at \(x = 7\), we substitute \(x = 7\) into the equation:

\(\[ y = 1.3642(7) + 3.2324 \]\)

Simplifying the equation, we get:

\(\[ y = 9.5494 + 3.2324 \]\[ y = 12.7818 \]\)

In conclusion, the linear regression analysis allows us to determine the relationship between the variables x and y in the given data set. By finding the equation of the linear regression line, we can estimate the value of y for any given x. In this case, the linear regression line equation is \(y = 1.3642x + 3.2324\). By substituting \(x = 7\) into the equation, we find that the estimated value of y is approximately \(12.78\). This analysis provides a useful tool for predicting and understanding the relationship between variables, allowing us to make informed decisions and interpretations based on the data.

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Answer:

Option A : y = 40x - 85 is the correct answer.

Step-by-step explanation:

Given that:

Cost of purchasing supplies = $85

Cost charged for cleaning a pool = $40

Let,

x be the number of pools cleaned.

y be the profit

Profit = Cost of pools cleaned - purchase price of supplies

y = 40x - 85

Hence,

Option A : y = 40x - 85 is the correct answer.

Answer:

\( A = 1986(1+ \frac{0.063}{12})^{12*8} =3283.153\)

So then after 8 years we will have in the account 3283.153

And in order to find the interest we can do the following operation:

\( I = 3283.153 -1986 = 1297.153\)

Step-by-step explanation:

For this case we can use the formula for the future value using compound interest given by:

\( A = P (1+ \frac{r}{n})^{nt}\)

Where P= 1986 the initial amount invested. r = 0.063 represent the interest rate. n=12 represent the number of times that the rate is compounded in a year. And t =8 years . Replacing the info we got:

\( A = 1986(1+ \frac{0.063}{12})^{12*8} =3283.153\)

So then after 8 years we will have in the account 3283.153

And in order to find the interest we can do the following operation:

\( I = 3283.153 -1986 = 1297.153\)

Answer:

70

Step-by-step explanation:

Because 2100 divided by 30 is 70 I  hope this is the answer :)

Answer:

380 seconds

Step-by-step explanation:

Convert 6 minutes to seconds by multiplying 6 times 60, because there are 60 seconds per minute.
6 x 60 = 360

Now add the 20 seconds.
360 + 20 = 380

6 minutes and 20 seconds are equal to 380 seconds.

D. F(x)=(x-1)/x(x-3) Just took the test

Step-by-step explanation:

correct answer 2) y> 3x+2

Answer:

x = √2/17

= approximately 0.083

Step-by-step explanation:

Answer: 340

Step-by-step explanation:

10 x 5 = 50

10 x 5 = 50

10 x 8 = 80

10 x 8 = 80

8 x 5 = 40

8 x 5 = 40

50 + 50 + 80 + 80 + 40 + 40

100 + 160 + 80

340

Answer:

If 1 inch on the map represents 15 miles in reality, then 2 inches on the map represents 2 times 15 miles, or 30 miles in reality.

Therefore, the actual distance between Lake Village and Bay Cove is 30 miles.

Step-by-step explanation:

Answer:

The second option: 3.5x+685\(\leq \\\)85

Step-by-step explanation:

The addition fee is 6 meaning adding not subtracting. Cancel out the first and last one. Then, it says without going over. Meaning it could equal exactly $85. Which means \(\leq\). So it would be the second option.

Answer:

hope this helped! Can you give me brainliest please? :))

Step-by-step explanation:

A: -7

E: +6.9

9514 1404 393

Answer:

  (-4√494)/13i +(6√494)/13k ≈ -6.8388i +0j +10.2585k

Step-by-step explanation:

To answer this question, you need to know two things:

  1) the direction of vector v

  2) the magnitude of vector u

__

direction of v

A direction is specified by a "unit vector", one with the proper ratio of components, and a magnitude of 1. It is found from a given vector by dividing that vector by its magnitude.

The unit vector in the v direction is ...

  v/|v| = (-2i +3k)/(√((-2)² +3²) = (-2i +3k)/√13

__

magnitude of u

The magnitude of vector u is ...

  |u| = √(5² +(-2)² +3²) = √38

__

Then the desired vector is ...

  (2|u|)(v/|v|) = 2√38(-2i+3k)/√13 = (-4√494)/13i +(6√494)/13k

_____

Additional comment

We have chosen to "rationalize the denominator" by writing √(38/13) as (√494)/13.

Answer:

C) $65.00

hope that helps!

The missing piece of information in the proof is that m∠DOA and m∠BOC are vertical opposite angles.

We want to prove that m∠BOC = 90°.

We are given that m∠AOB is a right angle triangle. Thus;

m∠BOC must also be equal to 90°

Now, since m∠BOC and m∠AOB are right angles, then it means that we must equally say that m∠DOA and m∠BOC are vertical opposite angles and they are as such equal.

Thus, the missing piece of information in the proof is that m∠DOA and m∠BOC are vertical opposite angles.

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