3x - 4y = 6 and 5x + 8y = -1

 Other methods that may be used to collect data on this topic include observation or self-report measures, but these may be less accurate than standardized measures.

When using terms in your answer, it is important to ensure that they are used correctly and in the appropriate context. This will help to provide clear and accurate information to the student asking the question.

The best way for a researcher to collect quantitative data about how much emergency department nurses use touch to comfort patients would be to use a standardized measure such as the Touch Questionnaire.

This measure assesses the frequency and nature of touch behaviors used by healthcare providers during interactions with patients, including comforting touches.

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Answer:

I am positve it 2mph

Step-by-step explanation:

becuase for evry hr u drive 2 miles

Answer:

245

Step-by-step explanation:

70% =.07

350 × .07 =245

The correlation between X and Y, captured by the joint pmf Px,y(x,y), allows for this difference in heights and explains the seemingly contradictory result.

The given scenario states that there is a joint probability mass function (pmf) Px,y(x,y) with marginal probabilities Px(u) = Py(u) for all u. However, it also states that the probability of Y being greater than X, P(Y > X), is greater than or equal to 0.9.

This situation seems contradictory at first, as the marginals are equal but the probability of Y being greater than X is significantly high. However, it is important to note that the joint pmf Px,y(x,y) accounts for the correlation between X and Y, not just their marginals.

The correlation between X and Y allows for the possibility that Y may be greater than X with a high probability, even though the marginals are equal. This indicates a dependence between the two random variables.

To illustrate this, let's consider an example where X and Y represent the heights of two groups of individuals. The equal marginals Px(u) = Py(u) imply that the heights in each group have the same distribution. However, the high probability of Y being greater than X (P(Y > X) ≥ 0.9) suggests that, on average, the individuals in one group tend to be taller than those in the other group.

Therefore, the correlation between X and Y, captured by the joint pmf Px,y(x,y), allows for this difference in heights and explains the seemingly contradictory result.

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Answer:

62

Step-by-step explanation:

4*7 = 28

(14 - 1 - 4) * (7 - 4) = 27

1 * 7 = 7

7 + 28 + 27 = 62

Answer: 62m^2

Step-by-step explanation:

total area = (7 * 4) + ( 1 * 7 ) + ( 9 * 3 ) = 62m^2

Answer:

max at (- 6, 18 )

Step-by-step explanation:

Given the equation of a parabola in intercept form

y = a(x + c)(x + d)

• If a > 0 then min vertex

• If a < 0 then max vertex

y = - 2(x + 9)(x + 3) ← is in intercept form

with a = - 2 < 0 then max vertex

y = - 2(x + 9)(x + 3) ← expand factors using FOIL

  = - 2(x² + 12x + 27) ← distribute parenthesis by - 2

y = - 2x² - 24x - 54 ← in standard form

with a = - 2 and b = - 24

The x- coordinate of the vertex is

x = - \(\frac{b}{2a}\) = - \(\frac{-24}{-4}\) = - 6

Substitute x = - 6 into the equation and evaluate for y

y = - 2(- 6 + 9)(- 6 + 3) = - 2(3)(- 3) = 18

vertex = (- 6, 18 ) and is a max

Answer:

Answer:

large area: small area = 100:25 = 4:1

Step-by-step explanation:

Mid-Segment of a triangle is always parallel to the third side, and the length of the midsegment is half the length of the third side.

(x₁,y₁) (x₂,y₂) (x₃,y₃): A(-10,30), B(30,50, C(-40,20)

XY = 1/2 AC , YZ = 1/2 AB , ZX = 1/2 BC

X (10,40) , Y (-5,35) , Z (-25,25) : X(x'₁,y'₁), Y(x'₂,y'₂), Z(x'₃,y'₃)

area of triangle by 3 vertices: (x₁,y₁) (x₂,y₂) (x₃,y₃) is

a = abs[x₁(y₂-y₃)+x₂(y₃-y₁)+x₃(y₁-y₂)] / 2  ... this is just a common formula for any triangle

a = abs(-10*30 + 30*-10 + -40*-20) / 2 = 100

a' = abs(10*10 + -5*-15 + -25*5) / 2 = 25

a/a' = 100/25 = 4/1

Answer:

\(y-1=\frac{3}{2} (x+3)\)

Step-by-step explanation:

Slope of the line drawn is -6 ÷ -4 = \(\frac{3}{2}\)

Point slope is y - y1 = m(x - x1)

y1 = 1, x1 = -3

\(y-1=\frac{3}{2} (x+3)\)

The fourth choice. For example, (x+2)(x-2)>0 we'll get x>2 or x<-2 because whenever you substitute x>2 for example x = 3, the value will be higher than 0 itself.

If we substitute x = 3 (for x>2)

We'll get (3+2)(3-2)>0

5(1)>0

5>0 The statement is true.

If we substitute x = -3 (for x<-2)

We'll get (-3+2)(-3-2)>0

-1(-5)>0

5>0 The statement is true.

We don't say x>2 AND x<-2, In math, we only say x>2 OR x<-2

Answer:

x >2 and x < -2

Step-by-step explanation:

The line on the right starts on -2 and goes towards -10

So ; x is x < -2

The line on the right starts on 2 and goes towards 10

So ; x is  x >2

The row of the input/output is incorrect is Row D.

Given equation: y = 2x - 3

For, row A:  

x = 3

y = 2x - 3

So,

y = 2(3) - 3

y = 3, which is correct

For row B:

x = 5

y = 2x - 3

So,

y = 2(5) - 3

y = 7, which is also correct.

For row C:

x = 7

y = 2x - 3

So,

y = 2(7) - 3

y = 11, which is also correct.

For, row D:

x = 10

y = 2x - 3

So, y = 2(10) - 3

y  = 17, which is incorrect.

Hence, the row of the input/output is incorrect is Row D.

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Answer:

Q1 1000     1

    3500    3.5

   500       .5

   75   .075

   1        .001

   x       1/1000x or .001x        Q2    Y=  1/1000x

Step-by-step explanation:

just search up 1000 meters to 1 kilometer and go from there :)  

The parabola opens upward, the range of the function is [6/5, ∞) in interval notation.

We can find the range of the function by finding the vertex of the parabola, which will give us the minimum value, and then noting that the function increases without bound as x approaches infinity.

First, we need to find the vertex of the parabola. We can do this by finding the x-coordinate of the vertex, which is given by:

x = -b/2a

where a = 5, b = -2. Substituting these values, we get:

x = -(-2)/(2(5)) = 2/5

To find the y-coordinate of the vertex, we can substitute this value of x into the equation for g(x):

g(2/5) = 5(2/5)^2 - 2(2/5) + 1 = 5/5 - 4/5 + 1 = 6/5

So the vertex of the parabola is (2/5, 6/5), which is the minimum value of the function.

Since the parabola opens upward, the range of the function is [6/5, ∞) in interval notation.

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Answer:

90+30=120

180-120=60 this is degree measure

An employee receives a 2% rise once every year. If an employee's starting salary is $61,900.00, salary after seven years will be $71,103.64.

We will calculate the salary for each year till 7th year.

Salary after 1 year = Original salary × (100 + raise)/100

= 61,900 × (100+2)/100
= 61,900 × 102/100

= $63,138

Salary after second year = salary after first year × 1.02

= 63,138 × 1.02

= $ 64,400.76

Salary after third year = salary after second year × 1.02

= 64,400.76 × 1.02

= $ 65,688.78

Salary after fourth year = salary after third year × 1.02

= 65,688.78 × 1.02

= $ 67,002.55

Salary after fifth year = salary after fourth year × 1.02

= $ 67,002.55 × 1.02

= $ 68,342.60

Salary after sixth year = salary after fifth year × 1.02

= $ 68,342.60 × 1.02

= $ 69,709.45

Salary after seventh year = salary after sixth year × 1.02

= $ 69,709.45 × 1.02

= $ 71,103.64

So, the final salary after seven years after all the increments will be $ 71,103.64

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Answer:

When there are 2 answers there will be a crown you can click and that will give brainlest

Step-by-step explanation:

=  

a + b + c

2

=  

8 + 10 + 5

2

=  11.5 inches

Area =  √s(s-a)(s-b)(s-c)

=  √11.5×(11.5 - 8)×(11.5 - 10)×(11.5 - 5)

=  19.810035335658 inches

Answer:

the answer is 19.81 inches

Answer:

y= 3/4x + 6.4

Step-by-step explanation:

If your teacher asks why it's so specific tell them you used desmos <3

Answer:

D

Step-by-step explanation:

The by product of nuclear power is radiation as it is dangerous for health of living creatures and environment.

the correct answer is (b) No,

the statement does not the represent an exponential function.

The given function is h(t) = -4.9t² + 18t + 40.

We need to identify whether the statement represents an exponential function or not.

Exponential functions are of the form f(x) = abⁿ where b > 0

and b ≠ 1 and a is the initial value of the function.

That is, exponential functions have a constant base raised to

the variable exponent.

In the given function, the variable t is raised to the exponent 2,

not a constant base.

So, the given function is not an exponential function.

Hence, the correct answer is option (b) No,

the statement does not the represent an exponential function.

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Answer:

1.72

Step-by-step explanation:

0.52 plus 1.2 is equal to 1.72

Answer:

1.5

Step-by-step explanation:

0.52+1.2

approx.

0.5+1.0=1.5

Answer:

12.6

Step-by-step explanation:

\(\frac{84}{87}\) = \(\frac{x}{13}\)

cross multiply

87x = 1092

x =  12.6 rounded

(a) P(C AND D) = P(C∣D) × P(D) = 0.4 × 0.3 = 0.12. (b) C and D are not mutually exclusive because P(C AND D) ≠ 0.(c) C and D are not independent events because P(C∣D) ≠ P(C).

(a) To find P(C AND D), we can use the formula for conditional probability:

P(C AND D) = P(C∣D) × P(D)

Given that P(C) = 0.2, P(D) = 0.3, and P(C∣D) = 0.4, we substitute the values into the formula:

P(C AND D) = 0.4 × 0.3 = 0.12

Therefore, the probability of both events C and D occurring simultaneously is 0.12.

(b) To determine if events C and D are mutually exclusive, we need to check if P(C AND D) = 0. If the probability of their intersection is 0, then they are mutually exclusive.

In this case, P(C AND D) = 0.12, which means that C and D are not mutually exclusive. If they were mutually exclusive, the probability of both occurring together would be 0.

(c) To determine if events C and D are independent, we need to check if P(C∣D) = P(C). If the conditional probability of C given D is equal to the probability of C, then the events are independent.

In this case, P(C∣D) = 0.4 and P(C) = 0.2. Since P(C∣D) ≠ P(C), we can conclude that events C and D are not independent. The occurrence of event D affects the probability of event C, indicating a dependence between the two events.

Therefore, based on the given probabilities, events C and D are not mutually exclusive and not independent.


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Answer:

57%

Step-by-step explanation:

Answer:

I think the first one 57%

Step-by-step explanation:

hope this helps sorry if it doesn't have a good rest of your afternoon/day :) ❤

Answer:

A=11x^2 -4x-2

Step-by-step explanation:

3x^2 +2x-4 +8x^2 -2 -5x+2

(8+3)x^2 +(2-1-5)x -4+2

=11x^2 -4x-2

Answer:

66 m^2

Step-by-step explanation:

6*11=66

Parabolic CoordinatesParabolic coordinates are a coordinate system that can be used to define any point in 2D Euclidean space.

In this system, points are defined by two variables u and v. The parabolic coordinates of a point in 2D Euclidean space can be found using the following equations: x = (u^2 - v^2) / 2y = uvIn this coordinate system, the differential unit of length, ds2, can be found using the equation:ds2 = du2 + dv2 + dx2where du2 and dv2 are the differentials of u and v, respectively, and dx2 is the differential of x. Cylindrical CoordinatesCylindrical coordinates are a coordinate system that can be used to define any point in 3D Euclidean space. In this system, points are defined by three variables r, θ, and z.

The cylindrical coordinates of a point in 3D Euclidean space can be found using the following equations: x = r cos(θ)y = r sin(θ)z = zIn this coordinate system, the differential unit of length, ds2, can be found using the equation:ds2 = dr2 + r2 dθ2 + dz2where dr2 and dθ2 are the differentials of r and θ, respectively, and dz2 is the differential of z. The volume element dV can be found using the equation:dV = r dr dθ dz. Using the above explanations, the differential unit of length, ds2, and the volume element dV for parabolic coordinates and cylindrical coordinates are as follows: For Parabolic Coordinates: ds2 = du2 + dv2 + dx2= du2 + dv2 + [(u2 - v2)/2]2dV = dudvdxdydz = [(u2 - v2)/2] dudvdzFor Cylindrical Coordinates: ds2 = dr2 + r2 dθ2 + dz2= dr2 + r2 dθ2 + dz2dV = rdrdθdzThe above explanations provide the main answer, which is the differential unit of length, ds2 and the volume element dV for parabolic coordinates and cylindrical coordinates.

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Answer:

there is a 0.02 or 2% difference

Answer:

8% is 2% more than 6%

Step-by-step explanation:

Let's say the total is 100.

8% of 100 is 8.

6% of 100 is 6.

8 - 6 is 2.

2 is 2% of 100.