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Answer:

7/40

Step-by-step explanation:

once again not bothered

The probability she takes out exactly $2.50 is 7/40.

Probability deals with the occurrence of a random event. The chance that a given event will occur. It is the measure of the likelihood of an event to occur.The value is expressed from zero to one.

For the given situation,

Number of coins in Kia bag = 10 coins

Number of $1 coins = 3

Number of 50 pence coins = 7

Kia takes at random 3 coins from the bag and the number of ways are

[tex]10C_{3} =\frac{(10)(9)(8)}{(1)(2)(3)}[/tex]

⇒ [tex]10C_{3} =\frac{720}{6}[/tex]

⇒ 120

Kia takes out exactly $2.50

So the combination could be two $1 coins and one 50 pence coins,

⇒ [tex](3C_{2}) (7C_{1} )[/tex]

⇒ [tex](\frac{(3)(2)}{(1)(2)} )(7)[/tex]

⇒ 21

Thus the probability she takes out exactly $2.50 is P(E) = [tex]\frac{21}{120}[/tex]

⇒ 7/40

Hence we can conclude that the probability she takes out exactly $2.50 is 7/40.

Learn more about probability here

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The scenario described in the question involves using a rope to whirl a bucket in a vertical circle. This relates to the physics concepts of centripetal force, tension in the rope, and gravity. The tension in the rope provides the centripetal force needed for the curved path of the bucket, and the scenario implies a constant speed and a counterbalance between tension and gravity at the highest point of the circle.

The question involves a principle of physics known as centripetal force, which is the force that makes a body follow a curved path. Its direction is always orthogonal to the motion of the body, towards the fixed point of the instantaneous center of curvature of the path.

In this case, the 60 cm rope tied to the bucket and whirled in a vertical circle becomes a system where the bucket, the force of gravity, and the tension in the rope all play a part. When the bucket is whirled, it experiences a centripetal force that keeps it moving in a circle. This force comes from the tension in the rope, which always pulls the bucket towards the center of the circle (the hand holding the rope). Hence, there are two key forces in this scenario - the force of gravity, pulling the bucket downward, and the tension in the rope providing the centripetal force.

Since the question does not state otherwise, we can reasonably assume that the movement is steady, implying the speed of the bucket is constant. In such a case, the swinging bucket will rise to a certain point, where the tension in the rope and the gravity cancel each other, causing the bucket to start falling back to the other side, therefore, forming the vertical circular path.

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Answer:

The answer is 25

Step-by-step explanation:

Answer:

[tex]x=6.11  feet[/tex]

Step-by-step explanation:

Given that in a fulcrum weights are perfectly balanced.

One side 40 lb weight is there and another side 50 lb weight is given

Let x be the length of 40 lb weight from fulcrum.  Then 50 lbs is at a distance of 11-x.

Then we have since weights are perfectly balanced

[tex]40x = 50(11-x)\\90x=550\\x=6.111[/tex]

Thus we get [tex]x=6.11[/tex]feet

Answer:

its C

Step-by-step explanation:

(x, y) → (x + 8, y – 3)

Answer:

got it right and was option A     thx

Step-by-step explanation:

The lengths of the two pieces of wire, when one is formed into a square and the other into a circle with equal areas, are approximately 186.3 inches and 133.7 inches respectively.

To solve this problem, we first need to understand that the total perimeter of both the square and the circle made from the wire lengths equal to the original wire length, which is 320 inches. Suppose the length of the wire used for the square is 'a' and the length for the circle is 'b'. So, 'a + b = 320' inches.

Given that, the areas of both the square and the circle are equal. The area of a square is side^2 and the side of our square will be 'a/4' (since a square has four equal sides) and the area of a circle is πr^2, with the circumference being 2πr or 'b' in this case, so the radius is 'b / (2π)'.

Setting these two areas equal gives us the equation '(a/4)^2 = π * (b/ (2π))^2'. Solving this system of equations, we find that 'a' is approximately 186.3 inches and 'b' is approximately 133.7 inches.

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We calculate P to be approximately $7,759.58, which is the amount Ryan invested initially.

To determine the initial investment that Ryan made, which grew to $12,835.94 after 10 years with an annual interest rate of 4.31% compounded monthly, we will use the formula for compound interest:

[tex]A = P(1 + r/n)^{nt}[/tex]

Where:

A is the amount of money accumulated after n years, including interest.

P is the principal amount (the initial amount of money).

r is the annual interest rate (decimal).

n is the number of times that interest is compounded per year.

t is the time the money is invested for, in years.

We know that:

A = $12,835.94

r = 4.31/100 = 0.0431

n = 12

t = 10

We need to solve for P:

P = A /[tex](1 + r/n)^{nt}[/tex]

Substituting the known values, we get:

P =[tex]$12,835.94 / (1 + 0.0431/12)^{12*10}[/tex]

P = $12,835.94 / [tex](1 + 0.0035925)^{120}[/tex]

P = $12,835.94 / ([tex]1.0035925)^{120}[/tex]

Calculating the value inside the parenthesis first:

[tex](1.0035925)^{120}[/tex] = 1.654297553

Now, we divide the final amount by this compound factor:

P = $12,835.94 / 1.654297553

P ≈ $7,759.58

Therefore, Ryan's initial investment was approximately $7,759.58.

Factor out the common numbers/variables from the terms given

4 is a common number

4m + 4p

4(m + p) is your answer

hope this helps

Answer:

Scale factor = [tex] \frac{1}{2} [/tex]

Explanation:

The purple shape is a dilation of the black shape.

A dilation is a transformation that produces an image that is the same shape as the original, but is a different size.

Now findd the scale factor.

If given two shapes and need to find the scale factor, We must know which one was the original and which one is the image or the new shape. Then we need to know the length of corresponding sides and set them up in a ratio like so:

Scale Factor = [tex] \frac{purple}{black} [/tex]

Scale factor = [tex] \frac{10}{20} = \frac{1}{2} [/tex]

The number of distinct ways the letters in TALLAHASSEE can be arranged is calculated using permutations with repetitions. It involves taking the factorial of the total number of letters and dividing by the factorial of the number of times each letter repeats.

To determine the number of distinct ways the letters in TALLAHASSEE can be arranged, we must consider it as a permutation problem with repeating elements. We need to calculate the factorial of the total number of letters and then divide by the factorial of the number of times each individual letter repeats.

The word TALLAHASSEE contains 11 letters in total:

The permutation formula considering repetitions is:

Number of arrangements = Total letters factorial / (Product of each letter's factorial)

Therefore:

Number of arrangements = 11! / (2! * 2! * 2! * 2!)

This would give us the total number of distinct arrangements of the letters in TALLAHASSEE.

Answer: 3.A

Step-by-step explanation: At the exallent rating

Answer:

0

if you were confused to the one on top

To choose 3 kinds of ice cream and 2 kinds of toppings from the dessert buffet with 10 different kinds of ice cream and 6 kinds of toppings, you can use the concept of combinations. The total number of ways to choose is 1800.

To determine the number of ways to choose 3 kinds of ice cream and 2 kinds of toppings from the dessert buffet, we can use the concept of combinations. We have 10 different kinds of ice cream to choose from, and we want to choose 3 of them. The number of combinations can be calculated using the formula:

C(n, r) = n! / (r!(n-r)!)

where n is the total number of objects (10 ice cream flavors) and r is the number of objects to be chosen (3 ice cream flavors), and ! denotes factorial.

In this case, the number of combinations of ice cream flavors is:

C(10, 3) = 10! / (3!(10-3)!) = 120

Similarly, we have 6 different kinds of toppings to choose from, and we want to choose 2 of them. The number of combinations of toppings is:

C(6, 2) = 6! / (2!(6-2)!) = 15

Therefore, the total number of ways to choose 3 kinds of ice cream and 2 kinds of toppings is the product of the number of combinations of ice cream flavors and toppings:

Total number of ways = 120 * 15 = 1800

Final answer:

To find the circle's equation from its diameter's endpoints, calculate the circle's center using the midpoint formula, then determine the radius with the distance formula. Finally, use these values in the circle's standard equation.

Explanation:

To find the equation of the circle, we first need to determine its center and radius. The midpoint of the diameter will give us the center of the circle, and the distance from one of the endpoints to the midpoint will give us the radius.

Step 1: Find the Center of the Circle

The midpoint formula ((x1 + x2)/2, (y1 + y2)/2) gives us the center of the circle. Applying this to our points (7, -7) and (5, -3):

Center = ((7 + 5) / 2, (-7 - 3) / 2) = (6, -5)

Step 2: Calculate the Radius

We use the distance formula, √((x2 - x1)² + (y2 - y1)²), between one of the endpoints and the center:

Radius = √((7 - 6)² + (-7 + 5)²) = √(1 + 4) = √5

Step 3: Write the Equation

Using the standard equation, (x - h)² + (y - k)² = r², where (h, k) is the center and r is the radius:

Equation: (x - 6)² + (y + 5)² = 5

This equation gives the precise location and size of the circle based on its diameter's endpoints.

∠V is calculated to be 70°.

When two triangles are similar (QRS ~ TUV), their corresponding angles are equal. This means:

Given ∠R = 47° and ∠Q = 63°, we know that ∠T = 63° and ∠U = 47°.

Since the sum of the angles in any triangle is 180°:

∠Q + ∠R + ∠S = 180°

Substituting the known values:

63° + 47° + ∠S = 180°

Solving for ∠S:

∠S = 180° - 63° - 47° = 70°

Therefore, ∠V = 70° because ∠S corresponds to ∠V in the similar triangles.

Complete question: Triangle QRS is similar to triangle TUV. ∠R=47°, ∠Q=63°. What is the measure of angle V?

Answer:      x<−2

(just had a test)

hope this helps

Answer:

NONE OF THE ABOVE!!

Step-by-step explanation:

A regular polygon is equilateral and equiangular, and also, can be inscribed into a circle. The polygon shown doesn't meet any of these conditions.

Final answer:

To find the center of a wooden wheel for a toy car, use a carpenter's square to draw two perpendicular diameters across the wheel; their intersection is the center where the axle hole should be drilled.

Explanation:

To find the center of a wooden wheel using a carpenter's square, which is used to draw right angles, follow these steps:

This method effectively divides the wooden wheel into four equal quadrants, and the intersection point of the diameters marks the center, where the axle hole should be drilled.