After a helicopter flies to a height of 500 meters, it starts to descend to a
landing pad that ground distance is 11 meters. What is the measure of the
angle formed with the ground looking up to the helicopter?

Answer:

( -5,0)

Step-by-step explanation:

The x intercept is where it crosses the x axis

The x value where it crosses the x axis is -5 and the y value is 0

( -5,0)

Jay's net weight change in 6 month is 30 pounds.

a) Given that, in February, the record low temperature for ST.Paul Minnesota was -3° F

In January temperature = -3×6

= -18 F

c) Jay went on a diet and last 5 pounds each month

Jay's net weight change in 6 months = 5×6

= 30 pounds

Therefore, Jay's net weight change in 6 month is 30 pounds.

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Answer:

A. 106

Step-by-step explanation:

Use the correct order of operations.

(8 + 2)² + (6 − 4) × 3 =

= 10² + 2 × 3

= 100 + 6

= 106

Step-by-step explanation:

2.1.1 ) next term is 42

2.1.2)3n^2 - 8n + 7

2.1.3)1047

the 26th term is = -140

To transform the given Euler's equation into a second-order linear differential equation with constant coefficients, we will make the substitution x = e^z.

Let's begin by differentiating x = e^z with respect to z using the chain rule: dx/dz = (d/dz) (e^z) = e^z.

Taking the derivative of both sides again, we have:

d²x/dz² = (d/dz) (e^z) = e^z.

Next, we will express the derivatives of y with respect to x in terms of z using the chain rule:

dy/dx = (dy/dz) / (dx/dz),

d²y/dx² = (d²y/dz²) / (dx/dz)².

Substituting the expressions we derived for dx/dz and d²x/dz² into the Euler's equation:

x²(d²y/dz²)(e^z)² - 4x(e^z)(dy/dz) + 5y = ln(x),

(e^z)²(d²y/dz²) - 4e^z(dy/dz) + 5y = ln(e^z),

(e^2z)(d²y/dz²) - 4e^z(dy/dz) + 5y = z.

Now, we have transformed the equation into a second-order linear differential equation with constant coefficients. The transformed equation is:

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A. To find the value of 3 - 2, we simply subtract 2 from 3, which equals 1.

B. To solve the system of simultaneous equations, let's represent the given equations in matrix form:

[A | B] * [x; y; z] = [C]

where A is the coefficient matrix, B is the constant matrix, and C is the solution matrix.

Substituting the given values, we have:

A = 0 1 -2

   2 -3 1

B = -2 1

    2 3

C = -2 -1

    1 1

Now, let's solve for [x; y; z] using the matrix method. We need to find the inverse of matrix A:

A^-1 = 1/((0*(-3)) - (1*2)) * (-3 2)

                                (-2 0)

Calculating the inverse, we get:

A^-1 = 1/6 * (-3 2)

              (-2 0)

A^-1 = (-1/2 1/3)

           (-1/3 0)

Now, multiply A^-1 by matrix C to find the solution [x; y; z]:

[x; y; z] = A^-1 * C

[x; y; z] = (-1/2 1/3) * (-2 -1)

                                   (1 1)

[x; y; z] = (3/2)

             (-1/3)

Therefore, the solution to the system of simultaneous equations is x = 3/2, y = -1/3, and z is arbitrary.

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Step-by-step explanation:

green: 6/4

red: 7/4

this is all i know

Answer:

A single number that estimates the value of an unknown parameter is called a point estimate.

Step-by-step explanation:

Don't see the point (haha) of elaborating

Answer: 8. Tens:4 Hundreds:5 Thousands:7

9. Tens:9 Hundreds:9 Thousands:9

10.Tenths:6 Hundredths:2 Thousandths:4

11. Tenths:7 Hundredths:3 Thousandths:6

Step-by-step explanation:

An effective sampling method is not cast doubt on the usefulness of the sample

The effective sample is a calculation of the approximate sample size needed to obtain the same degree of accuracy as a simple random sample. It is denoted mathematically by the formula n/D, where n represents the sample size and D denotes the design effect. It is employed as a means of condensing the volume of data.

Effective sample size calculations are mostly used for qualitative analyses of the sample size. The sample size calculates the total number of measurements or observations made during an experiment or survey. The effective sample size—rather than the actual sample size—is utilized in this assessment since it is thought that a sample size of 30 is necessary for an analysis to be valid.

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I'm sorry, but I cannot determine the values of the line segment lengths

and angle measures without further information or context about the

geometry problem. Please provide me with more details or the specific

problem in question.

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Answer:

Step-by-step explanation:

given r = 2

hence,

(2)2 - 11*2 -12=

4-22-12= -30

hence ans = -30

The missing sides of the triangle are m = 4√3 and n = 8

From the question, we have the following parameters that can be used in our computation:

The triangle

Using the sine and cosine ratios, we have

cos(60) = 4/n

When solved for n, we have

n = 4/cos(60)

When evaluated, we have

n = 8

To calculate m, we use the following

m² = n² - 4²

This gives

m² = 8² - 4²

Evaluate

m² = 48

So, we have

m = 4√3

Hence, the missing sides of the triangle are m = 4√3 and n = 8

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The answer is (b) 3.48PM.Let the speed of each boat in still water be v and let the speed of the river's current be u.

Then, the effective speed of the first boat upstream towards Q is v - u, and its effective speed downstream towards P is v + u. Similarly, the effective speed of the second boat upstream towards R is v - u, and its effective speed downstream towards Q is v + u.

The distance between P and Q is 80km, so the time taken by the first boat to travel from P to Q upstream is 80 / (v - u) hours, and the time taken to return downstream from Q to P is 80 / (v + u) hours. Since the total time taken by the first boat is 8 hours (from 10AM to 6PM), we have:

80 / (v - u) + 80 / (v + u) = 8

Simplifying this equation, we get:

2v^2 + 5uv - 320 = 0

Similarly, the distance between P and R is 96km, so the time taken by the second boat to travel from P to R upstream is 96 / (v - u) hours, and the time taken to return downstream from R to Q is 16 / (v + u) hours (since it reaches Q at 6PM). Therefore, the total time taken by the second boat is:

96 / (v - u) + 16 / (v + u)

Since the second boat reaches Q at 6PM, it means that it took 8 hours to travel from P to R and back to Q. Hence, we have:

96 / (v - u) + 96 / (v + u) + 16 / (v - u) + 16 / (v + u) = 8

Simplifying this equation and using the quadratic equation obtained earlier, we can find v - u and v + u. Then, we can use the formula d = rt to find the time taken by each boat to travel from P to Q upstream.

After calculations, we get that the time taken by each boat to travel from P to Q upstream is 3.2 hours. Therefore, the first boat reaches Q at 1:12 PM (10:00AM + 3.2 hours + 3.2 hours), and the second boat reaches Q at 4:24 PM (10:00AM + 3.2 hours + 6.4 hours).

Therefore, the answer is (b) 3.48PM.

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===================================================

Explanation:

She starts off with $350 in savings. Then she adds on another $30 per week. After w of those weeks, she adds a total of 30w dollars. The w is just a placeholder for a number. For example, if w = 5, then 30*w = 30*5 = 150 dollars is added on top of the $350 already there.

Overall, the expression 30w+350 represents how much is in her savings after w weeks. Therefore, the equation Martina wants would be

s = 30w+350

----------------------

For the second part, we'll plug w = 17 into that equation to find s

s = 30w+350

s = 30*17+350

s = 510+350

s = 860

Martina has $860 in her account after 17 weeks.

Answer:

The maximal area of the rectangle with the perimeter of 20 feet is 5*5 = 25 square feet.

So, the area can not be 26 square feet.

Step-by-step explanation:

Answer:

the mid point of the segment will be (1,3)

Answer:

Step-by-step explanation:

hello : given z =  (-6-10i)/(4+7i)

the complex conjugate of the denominator is : 4-7i

1. Multiply the numerator and the denominator by the complex conjugate of the denominator:  z =  (-6-10i)(4-7i)/(4+7i)(4-7i)

use identity : (a + b)(a - b) = a² - b² calculate the product : (4+7i)(4-7i)

(4+7i)(4-7i) = 4² -(7i)² =16 -49i² =16+49 = 65..... ( i² = -1)

2) Simplify the results calculate the numerator :  (-6-10i)(4-7i)

(-6-10i)(4-7i)  = -24+42i -40i+70i²   = -24+42i -40i-70 .....( i² = -1)

(-6-10i)(4-7i) = -94+2i

now :  z =  (-94+2i )/65  = (-94/65) +(2/65) i

   the real part is :   ( -94/65) and the imaginary part is : 2/65

The new basic feasible solution will have x\ as a non-basic variable and a new basic variable with a value not equal to zero.

When a problem is in canonical form and the associated basic feasible solution is degenerate, this means that one of the basic variables has a value of zero. If the pivot operation is then performed with the basic variable with a value of zero extracted from the basis, the new basic feasible solution will have x\ as a non-basic variable and a new basic variable with a value not equal to zero. This is because the pivot operation involves exchanging the extracted basic variable with one of the non-basic variables. Therefore, the new basic feasible solution will not be degenerate, as the new basic variable will have a value not equal to zero.

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Answer:

A is the answer as to me check it

Answer:

The right answer is g(x) = -|x|

Step-by-step explanation:

Answer:

40

Step-by-step explanation:

14/35 = f/100

35f = 14 x 100

f = 14 x 100 /35

f = 40

Answer:

40

Step-by-step explanation:

Well, 35% of 40 is 14, but I'm not confident on what it wants when it suggests to answer as a numeric expression. But, if it means in it's unadulterated, unsimplified, primitive nature, then sure, let me list the work below.

14/.35

There.

I search it but I failed sorry

for not answering I just don't know

Answer:50

Step-by-step explanation:

Answer:

Step-by-step explanation:

The graph of x = 5 is a solid, vertical line through (x,0).

The graph of x > 5 is a dotted, vertical line through (5,0) , and the area to the right of the dotted line is shaded.

Answer:-1

Step-by-step explanation:

Answer: -6

Step-by-step explanation:

the line pass through (-3,-6)

Answer:

0

Step-by-step explanation:

anything below sea is negative and anything above sea level is positive. but you are at sea level so 0

Answer:

0

Step-by-step explanation:

Because he was at -80 the they dove up positive 80 so that would equal 0

Answer:

y = 1

Step-by-step explanation:

x + y = 16

x - y = 14     add the equations

--------------

2x = 30

x = 15

x + y = 16

15 + y = 16

y = 1

the numbers are 15 and 1