if a 9 inch stick is held up perpendicular and touching the ground and its shadow is 6 inches, what is the shadow height of a 40 FOOT stick?

Answer:

82% Add .34+.48.

Step-by-step explanation:

The question is asking how many people CAN swim. This is why the answer is 82. But if the question asks how many people CANT swim the answer will be 18. This is why some people might get confused.

Answer:

A, or 50.24 ft.

Step-by-step explanation:

Doing the equation above, we know the radius of the circle, which is 8 ft.

8ft times 2 is 16ft.

16ft times pi gives us (rounded) 50.24 ft.

Answer:

x = 2

Step-by-step explanation:

3(5x + 2) = 8x + 20

open the parenthesis

15x + 6 = 8x + 20

subtract 8x from both sides of the equation

15x - 8x + 6 = 8x - 8x + 20

7x + 6 = 20

subtract 6 from both sides of the equation

7x + 6 - 6 = 20 - 6

7x = 20 - 6

7x = 14

divide both sides of the equation by 7

7x/7 = 14/7

x = 14/7

x = 2

Answer:

x=2

Step-by-step explanation:

3(5x+2)=8x+20

First, we distribute the 3.

15x+6=8x+20

Now we can subtract 8x from both sides of the equation.

7x+6=20

Next, we subtract 6 from both sides.

7x=14

Finally, we divide both sides by 7.

x=2

HTH :)

The curl of the vector field

curl(F) = -2ey cos(z)i + 8ez cos(x)j - 9ex cos(y)k

The divergence of the vector field

div(F) = 9e^x sin(y) + 2e^y sin(z) + 8e^z

To find the curl of the vector field F(x, y, z) = 9ex sin(y), 2ey sin(z), 8ez sin(x), we need to compute the determinant of the curl matrix.

(a) Curl of F:

The curl of a vector field F = P(x, y, z)i + Q(x, y, z)j + R(x, y, z)k is given by the following formula:

curl(F) = (∂R/∂y - ∂Q/∂z)i + (∂P/∂z - ∂R/∂x)j + (∂Q/∂x - ∂P/∂y)k

In this case, we have:

P(x, y, z) = 9ex sin(y)

Q(x, y, z) = 2ey sin(z)

R(x, y, z) = 8ez sin(x)

Taking the partial derivatives, we get:

∂P/∂y = 9ex cos(y)

∂Q/∂z = 2ey cos(z)

∂R/∂x = 8ez cos(x)

∂R/∂y = 0 (no y-dependence in R)

∂Q/∂x = 0 (no x-dependence in Q)

∂P/∂z = 0 (no z-dependence in P)

Substituting these values into the curl formula, we have:

curl(F) = (0 - 2ey cos(z))i + (8ez cos(x) - 0)j + (0 - 9ex cos(y))k

= -2ey cos(z)i + 8ez cos(x)j - 9ex cos(y)k

Therefore, the curl of the vector field F is given by:

curl(F) = -2ey cos(z)i + 8ez cos(x)j - 9ex cos(y)k

(b) Divergence of F:

The divergence of a vector field F = P(x, y, z)i + Q(x, y, z)j + R(x, y, z)k is given by the following formula:

div(F) = ∂P/∂x + ∂Q/∂y + ∂R/∂z

In this case, we have:

∂P/∂x = 9e^x sin(y)

∂Q/∂y = 2e^y sin(z)

∂R/∂z = 8e^z

Substituting these values into the divergence formula, we have:

div(F) = 9e^x sin(y) + 2e^y sin(z) + 8e^z

Therefore, the divergence of the vector field F is given by:

div(F) = 9e^x sin(y) + 2e^y sin(z) + 8e^z

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\(|\Omega|=6\\|A|=3\\\\P(A)=\dfrac{3}{6}=\dfrac{1}{2}\)

Answer:

Step-by-step explanation: A represents 1, 3, 5, or a half of the numbers.

3/6 reduces to 1/2 final answer.

Answer:

Point D

Step-by-step explanation:

Point D is where lines starting from A, B, and C intersect.

Answer:

D

Step-by-step explanation:

Answer:

x = 5

Step-by-step explanation:

Answer:

9,999,909,009

Step-by-step explanation:

plz mark me brainliest. :0

Answer:

it does not equal the same

Step-by-step explanation:

but heres ur answer 9999909009

Answer:

Kindly check explanation

Step-by-step explanation:

Given the expression :

Jacob's yearly income :

2000x + 3000 ; x = number of hours worked per week.

Carlos income :

3800x - 40000

Managers prediction = 35

Jacob.: 2000(35) + 3000 = 73000

Carlos : 3800(35) - 40000 = 93000

Carlos will earn more than Jacob given the manager's prediction.

Number of hours required so they can earn the same amount :

2000x + 3000 = 3800x - 40000

3000 + 40000 = 3800x - 2000x

43000 = 1800x

x = 43000/1800

x = 23.88

x = 24 hours

If the production of wood tables on an assembly line increases from 1600 tables per shift to 2000 tables per shift, the labor productivity will increase by 25%.We need to determine the percentage change.

To calculate the increase in labor productivity, we need to compare the difference in production levels and determine the percentage change.The initial production level is 1600 tables per shift, and the increased production level is 2000 tables per shift. The difference in production is 2000 - 1600 = 400 tables.

To calculate the percentage change, we divide the difference by the initial production and multiply by 100:

Percentage Change = (Difference / Initial Production) * 100 = (400 / 1600) * 100 = 25%.

Therefore, the correct answer is option C) 25%, indicating that labor productivity will increase by 25% when the production is increased to 2000 tables per shift.

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Answer:

n=28

Step-by-step explanation:

Do I have to explain how i got the answer?

Answer:

4n=112

n=112/4

n=28

Step-by-step explanation:

Please give me brainliest, if I helped you

Answer:  the future value of $7,000, given that it will be invested for five years at an annual interest rate of 6 percent, would be approximately:

a. $8,677.10 when compounded annually.
b. $8,774.04 when compounded semiannually.
c. $8,802.77 when compounded bimonthly.

To calculate the future value of $7,000, we need to use the formula for compound interest:

Future Value = Principal * (1 + Rate/Compounding Period)^(Compounding Period * Time)

a. For the first part of the question, we need to calculate the future value of $7,000 when invested for five years at an annual interest rate of 6 percent. Since the interest is compounded annually, the compounding period is 1 year.

Using the formula, we have:

Future Value = $7,000 * (1 + 0.06/1)^(1 * 5)

Simplifying this calculation:

Future Value = $7,000 * (1 + 0.06)^5

Future Value = $7,000 * (1.06)^5

Future Value ≈ $8,677.10

b. For the second part, we need to recalculate the future value using different compounding periods:

1) Semiannually:
In this case, the compounding period is 0.5 years. Using the formula:

Future Value = $7,000 * (1 + 0.06/0.5)^(0.5 * 5)

Simplifying this calculation:

Future Value = $7,000 * (1 + 0.12)^2.5

Future Value ≈ $8,774.04

2) Bimonthly:
In this case, the compounding period is 1/6 years (since there are 12 months in a year and 2 months in each compounding period). Using the formula:

Future Value = $7,000 * (1 + 0.06/1/6)^(1/6 * 5)

Simplifying this calculation:

Future Value = $7,000 * (1 + 0.36)^5/6

Future Value ≈ $8,802.77

So, the future value of $7,000, given that it will be invested for five years at an annual interest rate of 6 percent, would be approximately:

a. $8,677.10 when compounded annually.
b. $8,774.04 when compounded semiannually.
c. $8,802.77 when compounded bimonthly.

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Answer:

pick number 3 I think that's the one

To solve this problem, we will need to take a number of actions.

Step 01:

Data

3/4 pound jars

24 pounds of jelly

Step 02:

jars = 24 pounds / (3/4 pound / jar)

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Answer: m= 85

Step-by-step explanation:

15+25=m-45

40=m-45

m=85

Answer:

¿Cómo andás? and ¿Dónde vivís?

Step-by-step explanation:

Hope this helps! <3

Answer:

cόmo andás and dόnde vivís

Step-by-step explanation:

The solutions to the system of equations f(x) = g(x), from the function's graphs, are given as follows:

1. x = 0 and x = 2.

2. x = 0.

3. x = 0 and x = 2.

The graphical solution of a system of equations is composed by the points of intersection of the functions that form the system.

For item 1, the functions are given as follows:

Hence the correct graph is the bottom graph, as it contains a linear function with intercept at -3 and the exponential function shifted down four units.

From the correct he points of intersection are given as follows:

x = 0 and x = 2.

For item 2, the functions are given as follows:

Hence the top graph is the correct graph and the point of intersection is given as follows:

x = 0.

For item 3, the functions are given as follows:

Hence the top graph is the correct graph and the points of intersection are given as follows:

x = 0 and x = 2.

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Answer:

Expand the polynomial using the FOIL method.

x

2

−

7

x

+

10

Step-by-step explanation:

Answer:

£ 4.20

Step-by-step explanation:

1 kg= £1.20

3.5 kg = £1.20*3.5

=£ 4.20

The cost of the apples being weighed on the scales would be £ 4.20

The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.

Multiplication is the mathematical operation that is used to determine the product of two or more numbers.

We are given that Apples are sold in a supermarket at £1.20 per gram.

Therefore, we know that

1 kg= £1.20

For 3.5 kg

= £1.20 x 3.5

=£ 4.20

The cost of the apples is £ 4.20

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The correct option is b which tells that an optimal solution to a linear programming problem must lie at the intersection of at least two constraints.

Linear programming is an optimization technique that is fine for the purpose of getting the best solution such as maximizing profit or certain 4th-era quantities.

When there are just two choice variables, the graphic method of solving a linear programming issue can be employed.

It is fine by modelling real-life problems into mathematical models that have linear relationships or constraints such as in the form of objective functions.

In linear programming, an objective function defines the formula for quantity optimization and the goal from this is to determine variable values that maximize or minimize the objective function depending on the problem robbery solved.

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ĉu ne, ĉu ne, sorore kaj eĉ ne sendante mesaĝojn al mi?

Answer:

-3/5

Step-by-step explanation:

from 1st point to second, you go down 3, right 5

The dimensions of the rectangle are width = 7/2 meters and length = 4 meters.

Let's assume that the width of the rectangle is x meters. According to the given information, the length of the rectangle is 3 meters less than double the width, which can be expressed as 2x - 3.

The area of a rectangle is given by the formula: Area = Length × Width. In this case, the area is given as 14 m². Therefore, we can write the equation:

(x)(2x - 3) = 14

Expanding the equation:

2x² - 3x = 14

Rearranging the equation to standard form:

2x² - 3x - 14 = 0

To solve this quadratic equation, we can factor it or use the quadratic formula. In this case, let's use the quadratic formula:

x = (-b ± √(b² - 4ac)) / (2a)

In our equation, a = 2, b = -3, and c = -14. Plugging in these values into the quadratic formula:

x = (-(-3) ± √((-3)² - 4(2)(-14))) / (2(2))

x = (3 ± √(9 + 112)) / 4

x = (3 ± √121) / 4

x = (3 ± 11) / 4

Simplifying further:

x = (3 + 11) / 4 or x = (3 - 11) / 4

x = 14 / 4 or x = -8 / 4

x = 7/2 or x = -2

Since the width cannot be negative, we discard the negative solution. Therefore, the width of the rectangle is 7/2 meters.

Now, we can substitute the value of x into the expression for the length:

Length = 2x - 3

Length = 2(7/2) - 3

Length = 7 - 3

Length = 4 meters

Thus, the dimensions of the rectangle are width = 7/2 meters and length = 4 meters.

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Answer:

Step-by-step explanation:

We are told that  Jeanette uses 18 square inches of paper for each card, for us to get the number of square inches she will need to make 150 cards, we will use the equality operation;

18 in² = 1 card

x in² = 150 cards

cross multiply

x * 1 = 18*150

x = 2700 in²

Convert 2700 in² to feet²

Since 1in² = 0.00694444ft²

2700in² = x

cross multiply

x = 2700 * 0.00694444

x = 18.749988ft²

Hence she will] need 18.749988ft²  to make 150 cards

Answer:

12. (2, -3)

13. AH: +15   B: +721   CB: 0   N: +462   WB: -1200

Step-by-step explanation:

12.

When a point is reflected over the x-axis, the y coordinate becomes opposite because you are changing its y value, not its x-value. So (-2, 3) reflecting over the x-axis becomes (-2, -3).

The same concept goes for reflecting over the y-axis. The x coordinate becomes opposite because you are changing its x value. (It's like folding the graph in half and seeing where the point matches up with. So (-2, -3) reflecting over the y-axis becomes (2, -3).

13.

All you have to do is list each artifact and where they were found in relation the sea level (0). If it is above sea level then it is a positive number, below sea level is a negative number.

Arrow head: +15 (since it is 15 feet above sea level)

Woven basket: -1200 (since it is 1200 feet below sea level)

Answer:

12 degrees

Step-by-step explanation:

Total angle in a circle = 360 degrees

If a circle is divided into 30 equal parts

measure of each part = Total angle in a circle/Total parts

measure of each part  = 360/30

measure of each part  = 12 degrees

Hence the measure of each part is 12 degrees

Answer:

The answer to picture 1 is C D B A

Step-by-step explanation:

Total earnings = $117

Total hours = 17

Earnings on each job:

Baseball coaching per hour = $6

Gym per hour = $9

So, we have to write an equation:

x= number of hours at baseball cocaching

y= number of hours working at the gym

The system of equations:

x+y= 17 (a)

6x+9y=117 (b)

Solve (a) for x:

x=17-y

Replace x on (b) and solve for y:

6(17-y)+9y=117

102-6y+9y=117

-6y+9y =117-102

3y= 15

y=15/3

y=5

Replace y on (a) ans solve for x:

x+5 = 17

x=17-5

x= 12

Hours worked at the gym (y)= 5

Hours worked at basesball (x)= 12

1. The initial height of the plant is 6cm

2. The plant grows at a rate of 6cm/week

3. The equation of the line is y = 6x+6

The equation of a straight line is y=mx+c where m is the gradient and c is the height at which the line crosses the y -axis which is also known as the y -intercept.

1. The initial height of the plant is 6cm

2. The slope of the line = y2-y1)/x2-x1

= 12-6)/2-1

= 6/1 = 6cm/week

therefore the plant grows 6cm per week.

3. The equation of the line is

y = mx +c

y = 6x +6

therefore the equation of the line is y = 6x+6

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