The distance between 26 and 15 on a number line is 9.

Answer:

y ≤ 45

Step-by-step explanation:

First y must be less than or equal to 45.

y ≤ 45 x + y  ≤  80

And total number of reservations cannot exceed 80:

x + y  ≤  80.

Answer:

New York

Step-by-step explanation:

Answer:

||

Step-by-step explanation:

They are parallel, so ||

Answer:

Explanation:

Since (line b; line c) and (line b; line d) are both perpendicular and at a distance, they are parallel. If they are parallel, the correct sign would be ll.

Answer:

1 Is the Variable

Step-by-step explanation:

Answer: $1.25.

Step-by-step explanation: The unit price of the oatmeal is calculated by dividing the total cost by the weight of the carton. In this case, the unit price is $6.25 / 5 pounds = $1.25 per pound. This means that for every pound of oatmeal, the cost is $1.25.

Answer:

dang he beat me to it

Step-by-step explanation:

6.25/5 is 1.25 per pound

The percent of change 8 to 2

Answer:

Number 4 is -5 I believe

Answer:

Step-by-step explanation:

quit

Answer:

Simplifying

3u = 72

Solving

3u = 72

Solving for variable 'u'.

Move all terms containing u to the left, all other terms to the right.

Divide each side by '3'.

u = 24

Simplifying

u = 24

3u= 72

three will go to the other side so it will divide

and it well be

u= 24

Answer:

D) 24

Step-by-step explanation:

Hope this helps. Pls give brainliest.

a) To find the elements of the set \(XY\), we need to concatenate each element of \(X\) with each element of \(Y\  b) To list the elements of \(X^*\) of length 4 or less, we need to consider all possible combinations of elements from \(X\) with repetition.

Since the maximum length is 4, we can have elements with lengths 1, 2, 3, or 4. The elements of \(X^*\) are:

where ε represents the empty string.

c) To provide a regular expression for \(X^*\), we can represent the elements of \(X^*\) using the alternation operator \(+\). The regular expression for \(X^*\) is:

This regular expression matches any combination of elements from \(X\) including the empty string.

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This declaration is True.

The anticipated variability or widespread deviation of the means from MANY unique random samples is known Sampling distribution.

The standard deviation of this distribution, i.e. the standard deviation of sample means, is called the standard error. The standard error tells you how accurate the mean of any given sample from that population is likely to be compared to the true population mean.

What is the suggest variance and fashionable deviation of the sampling distribution of the pattern mean?

Since the suggest is 1/N times the sum, the variance of the sampling distribution of the suggest would be 1/N2 instances the variance of the sum, which equals σ2/N. The widespread error of the suggest is the standard deviation of the sampling distribution of the mean.

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The given question is incomplete, complete question is:

The expected variability or standard deviation of the means from MANY different random samples is known as what quantity: a. Sampling variability b. Standard error (panel 51 from slides), itâs also said in the video c. Sampling distribution d. Parameter

Hi there!

With a normal distribution, we can use the operation 'normalcdf' on a calculator to find the probability that a randomly selected adult has an IQ between 96 and 111.

Here is the format for using the operation:

LB = Lower bound (96)

UB = Upper bound (111)

μ = Mean of normal distribution (100)

σ = Standard deviation of normal distribution (15)

Plug in the given values into the calculator and solve.

\(normalcdf(96, 111, 100, 15) = \boxed{0.3735 }\)

y = (-1/8)x^2 is a downward opening parabola with vertex = the origin (0,0) relatively flat.

Parabola points horizontally  left and right of the focus = from (4,-2) to (-4,-2) = 2(4) = 8.  

what is parabola?

Focus and directrix are equidistant from the vertex.

Focus has an x coordinate = 0 and y coordinate <0 axis of symmetry is the y axis or x=0.

Find one more point on the parabola, go horizontally from the focus to the parabola, that distance equals the distance from the parabola at that point to the directrix. its x coordinate = -2 times its y coordinate. it helps to graph a rough sketch of the parabola.

y = (-1/8)x^2

y = (-1/8)(-2y)^2

y = -4y^2/8 = -y^2/2

2y = -y^2

2 =- y

x=-2y = -2(-2) = 4

plug that point (4,-2) into y =(-1/8)x^2

-2 = (-1/8)(4)^2 = -16/8 = -2 = the y coordinate of the vertex,

x coordinate = 0

the focus = (0,-2)

distance from the focus to the vertex = 2

distance from the directrix to the vertex = 2

the latus rectum = distance from the parabola points horizontally  left and right of the focus = from (4,-2) to (-4,-2) = 2(4) = 8.   "Latus rectum" is the math term for that distance.

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y = (-1/8)x² is a downward opening parabola with vertex = the origin (0,0) relatively flat. Parabola points horizontally  left and right of the focus = from (4,-2) to (-4,-2) = 2(4) = 8.  

What is a parabola?

A parabola is a U-shaped plane curve. Any point on a parabola is at an equal distance from both the focus, a fixed point, and the directrix, a fixed straight line.

The topic of conic sections includes a parabola, and all of its principles are discussed here.

Three different parabolas exist. Vertex form, standard form, and intercept form are the three forms.

Several examples of parabolas in real life The wheel stance in yoga resembles a parabola.

The Banana's shape is beginning to resemble a parabola. A parabola is emerging from the Rainbow.

A series of points in a plane that are evenly spaced off from a straight line is referred to as a parabola.

Focus and directrix are equidistant from the vertex.

Focus has an x coordinate = 0 and y coordinate <0 axis of symmetry is the y axis or x=0.

Find one more point on the parabola, and go horizontally from the focus to the parabola, that distance equals the distance from the parabola at that point to the directrix. its x coordinate = -2 times its y coordinate. it helps to graph a rough sketch of the parabola.

y = (-1/8)x²

y = (-1/8)(-2y)²

y = -4y²/8 = -y²/2

2y = -y²

2 =- y

x=-2y = -2(-2) = 4

plug that point (4,-2) into y =(-1/8)x²

-2 = (-1/8)(4)² = -16/8 = -2 = the y coordinate of the vertex,

x coordinate = 0

the focus = (0,-2)

distance from the focus to the vertex = 2

distance from the directrix to the vertex = 2

the latus rectum = distance from the parabola points horizontally left and right of the focus = from (4,-2) to (-4,-2) = 2(4) = 8.   "Latus rectum" is the math term for that distance.

Hence, the distance from the focus to the vertex is 2 and the distance from the directrix to the vertex is 2 of the parabola y=-1/8x².

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The example of choosing candy falls under the dignified criteria of Qualitative data. Then the correct option required is Option B.

Qualitative data refers to data that is considered descriptive and conceptual which are collected through questionnaires, observation, and interviews. candy choices in the given question fall under the description of Qualitative data. Due to the  following reasons

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Answer:

D Option is the correct one.

Step-by-step explanation:

As,

Distance covered = 40km = 40000m(1k=1000m)

time = 10:15-9:00 = 1:15hours = 75mins

We need to find the rates of the bicyclist in one hour so, for this first we need to calculate the total distance which covered in one hour.

For calculating distance for one hour,

40000/75 = 533.33m/min (means they covered 533.33m distance in one min)

for one hour:

533.33*60= 32000m = 32km

They covered 32km distance in one hour.

Now from the given options D is the correct one because according to give condition north bicyclist covered 4km more that south one. And other reason is we also need to check the sum of distance covered by the both cyclist which must be equal to 32km.

So for A,

Sum = 19 + 15 =34 (wrong not equal to 32)

For B,

Sum = 18 + 13 = 31 (wrong)

For C,

Sum = 16 + 10 = 26(wrong)

For D,

Sum = 18 + 14 = 32 (Right)

And second distance b/w both distance is 4km.

18-14 = 4(Right)

So, D option is the right one.

I hope it will help you.

No, there is not enough evidence to support the executive's claim.

In order to determine whether there is enough evidence to support the executive's claim, we need to compare the mean household incomes of Visa Gold cardholders and MasterCard Gold cardholders. The mean household income for Visa Gold cardholders is $77,450 with a standard deviation of $11,200, while the mean household income for MasterCard Gold cardholders is $68,360 with a standard deviation of $11,400.

To assess the significance of the difference between these means, we can conduct a hypothesis test. The null hypothesis would state that there is no significant difference between the mean household incomes of Visa Gold and MasterCard Gold cardholders, while the alternative hypothesis would state that there is a significant difference.

By comparing the means and standard deviations, we can calculate the test statistic. Since the sample sizes are small (11 for MasterCard Gold cardholders), we can use a t-test for independent samples. With the given information, we find that the t-value is approximately -1.29.

To determine whether the difference is statistically significant, we need to compare the calculated t-value with the critical t-value at a specified level of significance (e.g., 0.05). The critical t-value for a two-tailed test with 10 degrees of freedom is approximately ±2.228.

Since the calculated t-value (-1.29) is within the range of the critical t-values (-2.228 to 2.228), we fail to reject the null hypothesis. Therefore, there is not enough evidence to support the executive's claim. The difference in mean household incomes between Visa Gold and MasterCard Gold cardholders is not statistically significant.

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Answer:

3/20 or 15%

Step-by-step explanation:

Out of 1,2,3,4, and 5, there are 3 prime numbers. This makes the odds of selecting one of those prime numbers 3/5. Then, saying that he does pick a prime number and discards that card, there are now four cards, one of them being the number one. His chances of selecting this card is 1/4.

To find the probability you need to multiply the two probabilities together.

3/5 times 1/4 is 3/20.

So your answer is 3/20 or 15%.

Answer:

Only answer choice number 4

Step-by-step explanation:

All parallelograms have 4 right angles: False. Only rectangles have 4 right angles. Parallelograms have opposite angles that are equal but not necessarily right angles.

   All parallelograms have rotational symmetry of 180°: False. A parallelogram has rotational symmetry of 180° only if it is a rectangle or a square.

   All parallelograms have exactly 4 lines of symmetry: False. A parallelogram can have 0, 1, 2, or 4 lines of symmetry depending on its shape and size.

   All rectangles are parallelograms: True. A rectangle is a special type of parallelogram with 4 right angles.

   All parallelograms have rotational symmetry of 90°: False. A parallelogram has rotational symmetry of 90° only if it is a rhombus.

Answer:

x=1

Step-by-step explanation:

1/5(10x-20)=x-3

2x-4=x-3

2x-x=4-3

x=1

Answer:

The value of x is 1 after solving the linear equation.

Step-by-step explanation:

Given equation is:

\(\frac{1}{5}(10x-20)=x-3\)

We will solve the equation by simplifying first.

\(\frac{1}{5}*10x-\frac{1}{5}*{20}=x-3\\2x-4=x-3\)

Now, we will subtract x from both sides of the equation,

2x-x-4 = x-x-3

x-4 = -3

Next, we will add 4 on the both sides of the equation,

x-4+4 = -3+4

x = 1

Hence,

The value of x is 1 after solving the linear equation.

Answer:

D)  30

Step-by-step explanation:

AB is the diameter of the circle

AB = AE + EB

     = 25 + 9

     = 34

OB, OC and OD are all the radius of the circle.

Radius = half the diameter

Therefore, OB = OC = OD = 34 ÷ 2 = 17

ΔCOD is an isosceles triangle with congruent sides OC and OD, and height OE

OE = OB - 9

     = 17 - 9

     = 8

Base of isosceles triangle = \(2\sqrt{a^2-h^2}\)

(where a is one of the congruent side lengths and h is the height)

\(\implies CD=2\sqrt{OD^2-OE^2}\)

\(\implies CD=2\sqrt{17^2-8^2}\)

\(\implies CD=30\)

Answer:

6. \( s = \dfrac{95 \pi}{6}~ft \)

7. \(A = \dfrac{50 \pi}{3}~in.^2\)

Step-by-step explanation:

6.

\( s = \dfrac{n}{360^\circ} 2 \pi r \)

\( s = \dfrac{150^\circ}{360^\circ} 2 \pi \times 19~ft \)

\( s = \dfrac{15}{36} 2 \pi \times 19~ft \)

\( s = \dfrac{15}{18} \pi \times 19~ft \)

\( s = \dfrac{5 \times 19}{6} \pi~ft \)

\( s = \dfrac{95 \pi}{6}~ft \)

7.

\( A = \dfrac{n}{360^\circ} \pi r^2 \)

\( A = \dfrac{60^\circ}{360^\circ} \pi \times (10~in.)^2 \)

\( A = \dfrac{6}{36} \pi \times 100~in.^2 \)

\( A = \dfrac{100 \pi}{6}~in.^2 \)

\( A = \dfrac{50 \pi}{3}~in.^2 \)

The critical point of f at z = 1 is a local minimum.

To find the critical points of the function f(z, 3) = 4z^2 - 8z + 1, we need to find the values of z where the first partial derivatives with respect to z are equal to zero. Let's solve it step by step.

Take the partial derivative of f with respect to z:

∂f/∂z = 8z - 8

Set the derivative equal to zero and solve for z:

8z - 8 = 0

8z = 8

z = 1

The critical point of f occurs when z = 1.

To determine whether the critical point is a local minimum, local maximum, or a saddle point, we can use the second partial derivative test. We need to calculate the second partial derivative ∂²f/∂z² and evaluate it at the critical point (z = 1).

Taking the second partial derivative of f with respect to z:

∂²f/∂z² = 8

Evaluate the second derivative at the critical point:

∂²f/∂z² at z = 1 is 8.

Analyzing the second derivative:

Since the second derivative ∂²f/∂z² = 8 is positive, the critical point (z = 1) corresponds to a local minimum.

Therefore, the critical point of f at z = 1 is a local minimum.

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Answer:

no

Step-by-step explanation:

it is outside of the wanted area

Answer:

no

Step-by-step explanation:

Cause i was on khan acedemy and got it right

Given That:

x - (Rebecca's share + John's share) = 24

x - (x/3 + x/4) = 24

12x/12 - (4x / 12 + 3x / 12) = 24

5x/12 = 24

5x = 24 x 12

5x = 288

x = 57 or 58

Answer: linear equation

Step-by-step explanation:

because x is not squared

D. The energy used is the same for both segments, the power while running is greater.

Walking and running both require energy, but the distance covered and the time taken are different. In this case, the person covers the same distance of 1 km in both segments.

Therefore, the energy used is the same for both. However, since running involves covering the same distance in less time, the power while running is greater. Power is the rate at which energy is used, and since running takes less time, the power output is higher.

D. The energy used is the same for both segments, the power while running is greater.

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