Can somebody please help me with this question I am completely confused I am giving lots of points and more if it is correct.

Answer:

did u ever get on answer cause I'm stuck in this too

Step-by-step explanation:

Mr. Wrench would charge $139 for a two-hour repair job for coming out to the house as N dollars and the charge per hour of work as x dollars.

Let's denote the charge for coming out to the house as N dollars and the charge per hour of work as x dollars. We are given the following information:

For a one-hour repair job, the total charge is $97.

For a five-hour repair job, the total charge is $265.

From this, we can set up two equations:

N + 1x = 97 (equation 1)

N + 5x = 265 (equation 2)

To find the charge for a two-hour repair job, we need to solve for N and x in the equations above and substitute the value of x into the equation for a two-hour repair job.

Subtracting equation 1 from equation 2, we get:

(5x - 1x) = (265 - 97)

4x = 168

x = 42

Now we can substitute the value of x into equation 1 to solve for N:

N + 1(42) = 97

N + 42 = 97

N = 97 - 42

N = 55

Therefore, the charge for a two-hour repair job is N + 2x:

55 + 2(42) = 55 + 84

= $139

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Answer:

\(\frac{4}{4} ,\frac{5}{5}\)

Step-by-step explanation:

In order to find the answer to this question you need to remember that if the denominator and the numerator are the same they equal one or one whole.

\(\frac{2}{2} =1\)

\(\frac{3}{3}=1\)

\(\frac{4}{4}=1\)

\(\frac{5}{5} =1\)

As long as the numerator and the denominator are the same they will be equivalent to 2/2 and 3/3.

Hope this helps.

The inverse of a biconditional statement is not equivalent to the original statement. The inverse statement may have a different meaning or convey a different condition.

The inverse of a biconditional statement involves negating both the "if" and the "only if" parts of the statement. In this case, the inverse of the biconditional statement would be:Inverse of Statement 1: A figure is not a polygon if and only if not all of its sides are line segments.

Now, let's analyze the relationship between Statement 2 and its inverse.

Statement 2: A figure is not a polygon if and only if not all of its sides are line segments.

Inverse of Statement 2: A figure is not a polygon if and only if all of its sides are line segments.

The inverse of Statement 2 is not equivalent to Statement 1. In fact, the inverse of Statement 2 is a different statement altogether. It states that a figure is not a polygon if and only if all of its sides are line segments. This means that if all of the sides of a figure are line segments, then it is not considered a polygon.

In contrast, Statement 1 states that a figure is a polygon if and only if all of its sides are line segments. It affirms the condition for a figure to be considered a polygon, stating that if all of its sides are line segments, then it is indeed a polygon.

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Okay, here we have this:

Considering that the slope of a line with the form Ax+By=C is equal to -A/B, we obtain the following:

m=-6/-5

m=6/5=1.2

Finally we obtain that the slope is 6/5 or 1.2.

Let's solve the exercise in another way, solving for "y", and the coefficient that we obtain from x will be our slope:

6x-5y=20

-5y=-6x+20

y=(-6x+20)/-5

y=-6x/-5-4

y=6/5x-4

Here we can see that the slope is 6/5.

Answer:

++hhhhhhhhhhhhhhhhhh

Answer:

All real numbers would be the correct answer.

Step-by-step explanation:

First of all, add 6n to -2n which now the equation would be 4n+3 < 4n+8.

Now, subtract 4n to both sides and subtract 3 to both sides. Now you will have 0n < 5 which will be all real numbers.

Answer:

y = -2.5x

Step-by-step explanation:

The constant of variation = y/ x = 5/-2 = -2.5

Also -7.5 / 3 = -2.5

-10 /4 = -2.5 and so on

If {v1, v2, v3} is an orthonormal basis for a subspace W of a vector space V, then multiplying v3 by a non-zero scalar c does not necessarily give a new orthonormal basis for W.

To see why, consider the dot product of cv3 with itself. If v3 is an orthonormal vector, then its norm is 1, so the dot product of cv3 with itself is (cv3) • (cv3) = c^2(v3 • v3) = c^2(1) = c^2. Thus, cv3 has a norm of |c|, rather than 1, and so it cannot be an element of an orthonormal basis for W.

However, multiplying v3 by a scalar does give a new basis for W. Specifically, {v1, v2, cv3} is a basis for W if c is non-zero, since v1 and v2 are orthogonal to cv3, and any vector in W can be written as a linear combination of these three vectors. But this new basis is not orthonormal, since cv3 has a norm of |c|. To obtain an orthonormal basis from this new basis, we can normalize each vector in the basis by dividing it by its norm.

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Answer:

The temperature from least to greatest is as follows;

-12°F, -10°F , -8°F

Step-by-step explanation:

Here, given the temperatures at different times, we want to arrange the given temperatures from the least to the greatest;

This means we are arranging in descending order;

While we are dealing with negative numbers, the biggest negative numbers are the smallest

in values while the smallest negative numbers are the biggest in value. What we are saying here is that -8 is greater than -24

So the temperature arrangement will be ;

-12 , -10 , -8

Answer:

24 seconds

Step-by-step explanation:

Given data

Blues flashes= 8 seconds

Red flashes= 12 seconds

Let us find the least common factor of 8 and 12

8= 2,4,8,16,24

12=2,3,4,6,24

Hence the number seconds is 24 seconds

For all values of x greater than or equal to -2, the function f(x) = √(x + 2) + 2 will yield real outputs. So, x = -2.

To determine the input value at which the function f(x) = √(x + 2) + 2 begins to have real outputs, we need to find the values of x for which the expression inside the square root is non-negative. In other words, we need to solve the inequality x + 2 ≥ 0.

Subtracting 2 from both sides of the inequality, we get:

x ≥ -2

Therefore, the function f(x) = √(x + 2) + 2 will have real outputs for all values of x greater than or equal to -2.

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Answer:

the answer would be S/ 2= 140/ 2 = 70°

If two variables are perfectly correlated, their correlation coefficient would be 1. A correlation coefficient is a statistical measure that quantifies the degree of association between two variables.

It ranges from -1 to 1, where -1 represents a perfect negative correlation (i.e., when one variable increases, the other decreases) and 1 represents a perfect positive correlation (i.e., when one variable increases, the other increases). If two variables are perfectly correlated, they have a strong and direct linear relationship, and their correlation coefficient is at its maximum value of 1. In other words, if you know the value of one variable, you can accurately predict the value of the other variable.

Conversely, if the correlation coefficient is 0, there is no linear relationship between the two variables. A correlation coefficient of 0.02 or 0.65 would indicate a weak to moderate correlation, respectively, but not a perfect one.

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Answer:

8

Step-by-step explanation:

-6x + 7(5) = -13

-6x + 35 = -13

subtract 35 from both sides

-6x = -13 - 35

-6x = -48

divide both sides by -6

x =

Answer:

The answer is B yes, a reasonable estimate is around 7•$9=63

Step-by-step explanation:

I took the test and picked B it was right.

Answer:

m=4

Step-by-step explanation:

−9(m+3)+14=−49

Step 1: Simplify both sides of the equation.

−9(m+3)+14=−49

(−9)(m)+(−9)(3)+14=−49(Distribute)

−9m+−27+14=−49

(−9m)+(−27+14)=−49(Combine Like Terms)

−9m+−13=−49

−9m−13=−49

Step 2: Add 13 to both sides.

−9m−13+13=−49+13

−9m=−36

Step 3: Divide both sides by -9.

−9m

−9

=

−36

−9

m=4

Answer:

x= z-m+y

Step-by-step explanation:

subtract m from both sides

add y to both sides

and switch sides

The value of the integral C1 and C2 are below:

∫[C1] (y + x – 4ix³) dz = -1/2 + 4/3 i

∫[C2] (y + x – 4ix³) dz = 0

To evaluate the integral, we need to parameterize the given contour C and express it as a function of a single variable. Then we substitute the parameterization into the integrand and evaluate the integral with respect to the parameter.

Let's evaluate the integral along contour C1: the straight line from Z = 0 to Z = 1 + i.

Parameterizing C1:

Let's denote the parameter t, where 0 ≤ t ≤ 1.

We can express the contour C1 as a function of t using the equation of a line:

Z(t) = (1 - t) ×0 + t× (1 + i)

= t + ti, where 0 ≤ t ≤ 1

Now, we'll calculate the differential dz/dt:

dz/dt = 1 + i

Substituting these into the integral:

∫[C1] (y + x – 4ix³) dz = ∫[0 to 1] (Im(Z) + Re(Z) - 4i(Re(Z))³)(dz/dt) dt

= ∫[0 to 1] (t + 0 - 4i(0)³)(1 + i) dt

= ∫[0 to 1] (t + 0)(1 + i) dt

= ∫[0 to 1] (t + ti)(1 + i) dt

= ∫[0 to 1] (t + ti - t + ti²) dt

= ∫[0 to 1] (2ti - t + ti²) dt

= ∫[0 to 1] (-t + 2ti + ti²) dt

Now, let's integrate each term:

∫[0 to 1] -t dt = [-t²/2] [0 to 1] = -1/2

∫[0 to 1] 2ti dt = \(t^{2i}\)[0 to 1] = i

∫[0 to 1] ti² dt = (1/3)\(t^{3i}\) [0 to 1] = (1/3)i

Adding the results together:

∫[C1] (y + x – 4ix³) dz = -1/2 + i + (1/3)i = -1/2 + 4/3 i

Therefore, the value of the integral along contour C1 is -1/2 + 4/3 i.

Let's now evaluate the integral along contour C2: along the imaginary axis from Z = 0 to Z = i.

Parameterizing C2:

Let's denote the parameter t, where 0 ≤ t ≤ 1.

We can express the contour C2 as a function of t using the equation of a line:

Z(t) = (1 - t)× 0 + t × i

= ti, where 0 ≤ t ≤ 1

Now, we'll calculate the differential dz/dt:

dz/dt = i

Substituting these into the integral:

∫[C2] (y + x – 4ix³) dz = ∫[0 to 1] (Im(Z) + Re(Z) - 4i(Re(Z))³)(dz/dt) dt

= ∫[0 to 1] (0 + 0 - 4i(0)³)(i) dt

= ∫[0 to 1] (0)(i) dt

= ∫[0 to 1] 0 dt

= 0

Therefore, the value of the integral along contour C2 is 0.

In summary:

∫[C1] (y + x – 4ix³) dz = -1/2 + 4/3 i

∫[C2] (y + x – 4ix³) dz = 0

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Given that there are no favorable events, there is no probability that the machine will be running at 1300 hours.

Science uses a figure called the probability of occurrence to quantify how likely an event is to occur.

It is written as a number between 0 and 1, or between 0% and 100% when represented as a percentage.

The possibility of an event occurring increases as it gets higher.

It is based on the probability that something will happen.

The fundamental underpinning of theoretical probability is the justification for probability.

For instance, while flipping a coin, there is a 12-percent probability that it will land on its head.

Thus, this is the probability formula:

P(E) = Favorable events/Total events

Now, we have a battery that works for 25 hours.

We have 50 batteries.

Then the number of hours will be:

50 * 25 = 1,250 hours

Then, favorable events will be 0.

Hence, the probability will be 0.

Therefore, given that there are no favorable events, there is no probability that the machine will be running at 1300 hours.

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Answer:

-12x+7

Step-by-step explanation:

combine the like terms

Answer:  Midpoint

Step-by-step explanation:

Midpoint is the point that is equal distance from the endpoints.

Answer:

slope is 1/4

Step-by-step explanation:

Use rise over run

The slope of the line will be equal to 1/4.

Slope or the gradient is the number or the ratio which determines the direction or the steepness of the line. The slope of the line is the ratio of the rise to the run of the line.

The formula to calculate the slope of the line is given as,

Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )

Given that the line is passing through points ( 0,6) and (8,8). The slope of the line is calculated below,

Slope = ( y₂ - y₁ ) / ( x₂ - x₁ )

Slope = (8 - 6 ) / ( 8 - 0)

Slope = 2 / 8

Slope = 1 / 4

Therefore, the slope of the line will be equal to 1/4.

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Answer:

2 grams

Step-by-step explanation:

50 years is 5 half lives as 1 half life is 10 years.

64 divide 2 = 32-1 half life

32 divide 2 =16-2nd half life

16 divide 2 = 8-3rd half life

8 divide 2 = 4-4th half life

4 divide 2 = 2-5th half life

This means we will have 2 grams left of the radioactive substance after 50 years.

Answer:

C. y=-3x+2

Step-by-step explanation:

Looking at the graph, we see that the line intercepts the y axis at 2 and is decreasing as x increases.

The formula for a linear equation is y=mx+b

where b is the y intercept, which in this case is 2

since the y values decreases as x increases, m must be negative

Step-by-step explanation:

Principal = 250,000

Rate = 4%

Simple interest = 850,000

Time = ?

\(t = \frac{100 \times interest}{principal \times rate} \\ t = \frac{100 \times 850000}{250000 \times 4} \\ t = \frac{100 \times 85}{25 \times 4} \\ t = \frac{8500}{100} \\ t = 85years\)

(a) P(0) = 132,911, P(10) = 139,336, P(15) = 141,464.75, P(20) = 142,000, P(25) = 143,554.75 (all values are in thousands)

(b) The population growth rate is given by dp/dt, which is equal to 787

(c) The values of dp/dt remain constant at 787, indicating a constant population growth rate of 787,000 people per year, implying that the population is growing steadily over time, but the rate of growth is not changing.

(a) To evaluate P for t = 0, 10, 15, 20, and 25, we substitute these values into the given function:

P(0) = -14.452(0) + 787(0) + 132,911 = 132,911 (in thousands)

P(10) = -14.452(10) + 787(10) + 132,911 = 139,336 (in thousands)

P(15) = -14.452(15) + 787(15) + 132,911 = 141,464.75 (in thousands)

P(20) = -14.452(20) + 787(20) + 132,911 = 142,000 (in thousands)

P(25) = -14.452(25) + 787(25) + 132,911 = 143,554.75 (in thousands)

These values represent the estimated population of the country in thousands for the corresponding years.

(b) To determine the population growth rate, we need to find P'(t), which represents the derivative of P with respect to t:

P'(t) = dP/dt = 0 - 14.452 + 787 = 787 - 14.452

The population growth rate is given by dp/dt, which is equal to 787.

(c) Evaluating dp/dt for the same values as in part (a):

P'(0) = 787 - 14.452 = 787 (in thousands per year)

P'(10) = 787 - 14.452 = 787 (in thousands per year)

P'(15) = 787 - 14.452 = 787 (in thousands per year)

P'(20) = 787 - 14.452 = 787 (in thousands per year)

P'(25) = 787 - 14.452 = 787 (in thousands per year)

The values of dp/dt remain constant at 787, indicating a constant population growth rate of 787,000 people per year. This means that the population is growing steadily over time, but the rate of growth is not changing.

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Answer:

920

Hope that this helps!

The speed of the light in miles per hour is

66913574.4 miles per hour

It is the conversion of one unit to another unit with its standard conversion.

Example:

1 minute = 60 seconds

1 km = 1000 m

1 hour = 60 minutes

We have,

1 km = 0.62 mi

1 min = 60 s

1 hr = 60 min

Speed of light = 299,792 km per second

This can be written as,

1 km = 0.62 miles

299792 km = 299792 x 0.62 miles

299792 km = 185871.04 miles

1 hour = 60 minute

1 hour = 360 seconds

1/360 hour = 1 second

1 second = 1/360 hour

Now,

= 299792 km / 1 second

= 185871.04 miles / 1/360 hour

= 185871..04 x 360 miles per hour

= 66913574.4 miles per hour

Thus,

The speed of the light is 66913574.4 miles per hour.

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Answer:

Step-by-step explanation:

Let the number of free throws = x

And the number of regular field goals = y

Total shots made by the team = 31

Equation for the shots will be,

x + y = 31 ------(1)

If the team gets 1 point for free throws and 2 points for a regular field goal,

x + 2y = 49 --------(2)

[total points gained by the team = 49]

1). Option (2) is the correct option.

2). Subtracting equation (1) from equation (2),

  (x + 2y) - (x + y) = 49 - 31

  y = 18

  Therefore, number of  regular field goals made by the team = 18