whinch expression is greater than 250

Answer:

Step-by-step explanation:

One-third of an hour is:

60 × ⅓ = 20 minutes.

Miles per minute:

2 ÷ 20 = 0.1 mile.

How far can Josh run in 5 hours?:

5 hours = 5 × 60 = 300 minutes.

1 minute = 0.1 mile.

300 minutes = ?

300 × 0.1 = 30 miles.

Answer:

x = 3

Step-by-step explanation:

2x - y = 4

y = -2x + 8

-y = -2x + 4

y = -2x + 8

0 = -4x + 12

-4x = -12

x = 3

The distance from the center to where the foci is located is 8 units

The formula associated with the focus of an ellipse is given as;

c² = a² − b²

where;

Let's use the Pythagorean theorem

Hypotenuse square = opposite square + adjacent square

Substitute the values into the formula

c² = 10² - 6²

Find the square

c² = 100 - 36

c² = 64

Find the square root

c = √64

c = 8

Thus, the distance from the center to where the foci is located is 8 units

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A perfect square is a number obtaining by squaring a whole number

A perfect square can be defined as a number that is being expressed as the product of an integer by itself.

It is also seen as the second exponent of an integer.

In determining the perfect of a number, when you multiply an integer which could be a “whole” number, positive, zero or negative) by itself, the product of the multiplication is termed a square number, or a perfect square.

Perfect square is also described as a number made by squaring a whole number.

Some perfect squares in mathematics are;

Number 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, 139, 144, etc

Hence, a perfect square is described as a number that is the product of an integer with itself.

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Answer:

65 girls and 45 boys

Step-by-step explanation:

Answer:

The answer is b

Step-by-step explanation:

The distance traveled by the passenger train and the cattle train is equal to the total distance between them, which is 960 miles. Let x be the time (in hours) traveled by the passenger train and cattle train. Then, the equation that represents this situation is:

55x + 65x = 960

Simplifying the left-hand side of the equation, we get:

120x = 960

Dividing both sides by 120, we get:

x = 8

Therefore, the correct equation is:

B - 65x - 55x = 960

Answer:

= 25x² - 40x + 16

Step-by-step explanation:

(5x - 4)²

= (5x - 4) (5x - 4)

= 25x² - 20x - 20x + 16

= 25x² - 40x + 16

Hope this helps :)

Let me know if there are any mistakes!!

Answer:

Step-by-step explanation:

Hope this helps u!!

Answer:

Hope u got it :)

Step-by-step explanation:

\(9x^2 - 30xy + 25y^2 = (3x)^2 - 2 (15xy) + (5y)^2\)

                           \(= (3x)^2 - 2(3x \times 5y) + (5y)^2\\\\\)

\(This \ is \ of \ the \ form \ a^2 - 2ab + b^2 , \ that \ is \ (a-b)^2\\\\a = 3x, \ b = 5y\)

\(9x^2 - 30xy + 25y^2 = (3x - 5y)^2\)

Answer:

slope - (-7,1)

y-intercept - (0, -1)

Step-by-step explanation:

y=mx (slope) + b (y-intercept)

slope = rise/run

slope = -7/1 (go down 7 from the origin and go right 1)

y-intercept= -1 (the line passes through -1 on the y axis)

can I get brainliest thanks

Answer:

6 -5i

Step-by-step explanation:

(1 + 3) + (2 - 5i)

Combine like terms

1+3+2    -5i

6 -5i

Answer:

Answers in document. Answer Key

Step-by-step explanation:

Hope this helps ^^

Have a great day!

The product upgrade has led to the creation of two new operations, one of which is a high-precision drilling operation, that necessitates the use of Machines 3 and 4.

For the new version of the component described in Practice Problem 1, the aim is to create a manufacturing system that can handle high production levels with a limited chance of downtime. Machine 3's mean time to failure is 10 hours, and its mean time to repair is 45 minutes. This means that the machine's failure rate is roughly 1/6000, while its repair rate is approximately 1/45. Machine 4, on the other hand, has a mean time to failure of 100 hours and a mean time to repair of 6 hours. This means that its failure rate is approximately 1/10000, while its repair rate is approximately 1/6.The rate of production of the machines is 2 minutes. As a result, the manufacturing system engineer must decide whether to have buffers between the machines. The production rate is 0.5 pieces per minute if the buffer is set to zero.

The decision to add buffers to an assembly line is critical in ensuring that production runs smoothly and without interruption. The buffer sizes are determined by a number of factors, including the equipment's mean time to failure and repair, as well as the rate of production.

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Answer:

false

Step-by-step explanation:

false. it can also be used for finding forces or the mass of objects (like centres of mass)

Nikki applied to 3x colleges.

To determine the number of colleges Nikki applied to, we need to multiply the number of colleges Diego applied to by 3. Hence, the answer is represented by the mathematical expression 3x.

In this problem, 'x' represents the number of colleges Diego applied to. Nikki, on the other hand, applied to 3 times as many colleges as Diego did.

So, to find out the total number of colleges Nikki applied to, we multiply the number of colleges Diego applied to ('x') by 3.

Hence, the correct mathematical expression for the number of colleges Nikki applied to would be 3x.

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Answer:

1. MAD for Jada's data set = 1

Step-by-step explanation:

Mean Absolute Deviation = sum of the distances of each data value from the mean ÷ number of data value

Jada's data set is given as: 4, 4, 4, 6, 6 ,6

Mean = 5

✔️Find the distance between each data value form the mean

4 = |4 - 5| = 1

4 = |4 - 5| = 1

4 = |4 - 5| = 1

6 = |6 - 5| = 1

6 = |6 - 5| = 1

6 = |6 - 5| = 1

✔️Find the sum of the distances of each data value from the mean

1 + 1 + 1 + 1 + 1 + 1 = 6

✔️Find the MAD:

MAD = 6/6

MAD = 1

Answer:

3x+12/10 simplified is =3x+ 6 /5

Step-by-step explanation:

x+2 /x^2 +6x +8=  7x3+8x2+2 x2

She needs 20 olive oil for 8 teaspoons of vinegar.

To calculate the number of teaspoons required for olive oil, we will use the concept of ratio and proportion. We will equate the ratio of original amount to be taken with the required amount.

Now, According to the question:

Based on the given conditions:

6/15 = 8/x

Solve the equation:

2/5 = 8/x

2x = 40

x = 40/2

x = 20

Hence, She needs 20 olive oil for 8 teaspoons of vinegar.

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A situation in which conclusions based upon aggregated crosstabulation are different from unaggregated crosstabulation is known as Simpson's paradox.

Simpson’s Paradox is an example of statistics that can be wrong. The paradox is defined as averages that can be silly and misleading. Sometimes they can be just plain baffling.

It is also called the Yule-Simpson effect which is an effect that occurs when the marginal association between two categorical variables is qualitatively different from the partial association between the same two variables after controlling for one or more other variables.

This result is often encountered in social science and medical science statistics and is particularly problematic when frequency data are unduly given causal interpretations.

It is a statistical phenomenon where an association between two variables in a population emerges or reverses when the population is divided into subpopulations.

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Answer:

-16t^2 + 120t + 50

Step-by-step explanation:

Using the given values, we can write the model for this situation as:

h(t) = -16t^2 + 120t + 50

To determine how long it takes the thrown object to reach maximum height, we need to find the time at which the object reaches its maximum height. The maximum height occurs at the vertex of the parabolic path, which is given by:

t = -b / 2a

where a = -16, b = 120.

Substituting these values, we get:

t = -120 / 2(-16) = 3.75 seconds

Therefore, it takes 3.75 seconds for the thrown object to reach maximum height.

The correct prime numbers x that make this inequality true is,

⇒ x = 7, 11, 13, 17, 19

We have to given that;

The expression is,

''5 is less than x and x is less than or equal to 19.''

Now, We can formulate;

⇒ 5 < x ≤ 19

Hence, Possible prime numbers that make this inequality true are,

⇒ x = 7, 11, 13, 17, 19

Thus, The correct prime numbers x that make this inequality true is,

⇒ x = 7, 11, 13, 17, 19

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The probability that the three pieces can be assembled into a triangle is 25%

Let the length of the stick be 1, so each break can occur at a position in the interval [0,1]. Let x and y be the two breaks in the stick. Then the area of the region in the square bounded x=0, x=1, y=0, y=1, which represents combinations of x and y, for which we can form a triangle. Since the area of the whole square is 1, the area of the region inside is the probability of the triangle.

If y>x, then the lengths of the pieces are x, y-x, and 1-y.

The triangle inequality must hold for each combination of edges.

for  y>x ...

x+y−x≥1−y

x+1−y≥y−x

y−x+1−y≥x

these simplify to...

for  y>x ...

y≥1/2

x+1/2≥y

x≤1/2

If we cut our 1x1 square into two triangles along the line x=y,

then the region in the upper triangle which satisfies the inequalities above forms a smaller triangle which connects the midpoints of the upper triangle.

The lower triangle (x>y), is just a reflection about x=y of the upper triangle, so together, the entire region looks like a bow-tie at a 45 degree angle.

This region takes up 25% of the square,

Thus, the probability that the three pieces can be assembled into a triangle is 25%

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Using the D-operator elimination method, we simplify the equation X' = x' - (2-3)xX to X'' = Dx' - (2-3)xDX, representing the second derivative of X.



To solve the system of equations using the D-operator elimination method, we are given the equation:X' = x' - (2-3) x X

To begin, let's define a new variable, D, as the derivative operator d/dt. Using this notation, we can rewrite the equation as:DX = Dx - (2-3)xX

Next, let's differentiate both sides of the equation with respect to t:

D²X = D(Dx) - D((2-3)xX)

Now, let's simplify each term:

D²X = Dx' - (2-3)xDX

Since D²X represents the second derivative of X with respect to t, we can substitute it with X''.

X'' = Dx' - (2-3)xDX

This is the simplified form of the original equation after applying the D-operator elimination method.

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Answer:

775 feet.

Explanation:

• The number of rolls of fencing = 50

• The length of each roll = 15 1/2 ft.

To find the total length of fencing, multiply the number of rolls by the length of each roll.

Change the mixed fraction to an improper fraction.

The total length of fencing is 775 feet.

The probability of getting a head and a number greater than 5 i.e, independent events is 0.0833.

A coin is tossed and a die is rolled. These are two independent events. Two events are defined as independent if the outcome of one event has no effect on the outcome of another event. The probability is calculated by multiplying two independent probabilities together, i.e, P(A and B) = P(A) x P(B)

We have, Let us assume two independent events be ,

A : A coin is tossed and the head is thrown.

B : A die is rolled, and a number greater than 5 occurs.

Total possible outcomes when a coin tossed = 2 ={ H ,T }

Total possible outcomes when a die rolled = 6 = { 1,2,3,4,5,6} .

We have to determine probability of getting a head and a number greater

than 5.

Probability of getting the head on toss a coin, P(A) = 1/2

Probability of occuring a number greater than 5 on rolling a die = P(B) = 1/6

So, the probability of getting a head on coin and a number greater than 5 on die =P(A)×P(B)

=(1/2)× 1/6 = 1/12=0.0833

Hence, required probability is 0.0833.

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The second step when evaluating the given expression is to subtract 6 from 18, simplifying the expression within the parentheses to 12.

The second step when evaluating the expression 3 + (18 - 6) + 20 + 4 is to perform the operation within the parentheses, specifically the subtraction inside the parentheses.

Let's break down the expression step by step:

1. Start with the expression: 3 + (18 - 6) + 20 + 4

2. The expression inside the parentheses is 18 - 6. To simplify this, we subtract 6 from 18, which equals 12.

3. Now, we rewrite the expression with the simplified part: 3 + 12 + 20 + 4

4. At this point, the expression consists of addition operations only. When evaluating an expression with multiple addition operations, we start from the left and work our way to the right, performing the addition operation between two numbers at a time.

5. The first addition operation is between 3 and 12. Adding these two numbers gives us 15.

6. We rewrite the expression again, replacing the addition of 3 and 12 with the result: 15 + 20 + 4

7. Now, we perform the next addition operation between 15 and 20, resulting in 35.

8. We rewrite the expression once more: 35 + 4

9. Finally, we perform the last addition operation between 35 and 4, resulting in 39.

Therefore, the second step when evaluating the given expression is to subtract 6 from 18, simplifying the expression within the parentheses to 12.

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Answer:

(5,3)

Step-by-step explan

becuse you're moving the points to the right you add two to each point

hope its right good luck

Answer:

x >= 9.

Step-by-step explanation:

To earn a free movie ticket, Liam needs at least 160 points. He already has 50 points from signing up, so he needs 160 - 50 = <<160-50=110>>110 more points.

Each visit to the movie theater earns Liam 12.5 points, so the inequality representing the number of visits he needs to make is:

12.5 * x >= 110

To solve this inequality, we need to divide both sides by 12.5:

12.5 * x / 12.5 >= 110 / 12.5

This simplifies to:

x >= 8.8

Thus, Liam needs to make at least 9 visits to the movie theater to earn his first free movie ticket.

Therefore, the solution to the inequality is x >= 9.

Answer:

9 visits

Step-by-step explanation:

12.5 x 9 = 112.5

112.5 + 50 = 162.5

It is true that +10 and -10, are 10 units from 0 on the number line

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

Numbers = +10 and -10

The number of units of these numbers from 0 is calculated as

Units = |0 - Number|

So, we have

Units = |0 - 10| = 10

Units = |0 + 10| = 10

This means that the number of units is 10

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