Help me— My brain goes brrr in this question word problem thing ; - ;

A table tennis ball has a radius of 0. 04m. Estimate how many table tennis balls you could fit into the coin building! [search up what it is—]

( Width: 20m | height: 110m )


- How did you calculate your estimate?

- Explain how accurate you think your prediction is?

( Show Work. )

The equation of the conic with Points at (1,−1) directrix along x−y+1=0 and with eccentricity 2​ is 2xy - 4x -4y +1 = 0 .

Equation:

An equation is a formula that connects two expressions with the equal sign = to indicate that they are equal. Solving an equation involving variables involves determining which values ​​of the variables make the equation true. The variables for which the equation must be solved are also called unknowns, and the values ​​of the unknowns that satisfy the equation are called solutions of the equation. There are two types of comparisons: identity comparisons and conditional comparisons. The identity is true for all values ​​of the variable. Conditional comparisons are only true for certain values ​​of variables

According to the Question:

Let P(x, y) be any point on conic. Then,

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

⇒ (x-1)²+(y+1)² = (x- y+ 1)²

⇒ 2xy - 4x -4y +1 = 0

The above equation is the required equation of conic.

Complete Question:

The equation of the conic with focus at (1,−1) directrix along x−y+1=0 and with eccentricity 2​ is.

1) x²− y²=1O

2) xy =1O

3) 2xy−4x+4y+1 =0

4) 2xy+4x−4y−1 =0

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Answer:

\(y=3(x-50)\)

Please Give Brainliest if this is correct!

(Which I am pretty confident in...)

Answer:

10

Step-by-step explanation:

f(x) = 3x + 1

f^-1 = x-1/3 , it is known as inverse function.

f(3)= 3*3 +1

=9+1

=10

To find inverse,

x=3x + 1

y=3x+1

Exchanging the position or x and y

x=3y+1

x-1=3y

.•. y=x-1/3

Answer:

The answer should be -156-61i

The probability that you land on 8 twice is 1/64

What is probability?

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.

We spin a spinner numbered 1-8 twice

The total sample space can be given by considering all the possible values

Hence the total number of spins are 8*8= 64 spins

The possibility that getting 8 twice is only once possible. As it will be only one pair in all the possible values.

Hence, The total probability is 1/64

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The inequality representing Aisha's spending is 4x + 5y ≤ 100, where x is the number of charms and y is the number of sets of earrings.

To determine the maximum number of charms and sets of earrings Aisha can buy without spending all of her $100, we need to solve the inequality. The left-hand side of the inequality, 4x + 5y, represents the total cost of her purchases. The inequality states that the total cost must be less than or equal to $100.

By substituting different values for x and y, we can find combinations that satisfy the inequality. We can also use trial and error or graphing methods to find the valid combinations within the given constraint. The maximum number of charms and sets of earrings Aisha can buy will depend on the specific values of x and y that satisfy the inequality, ensuring she doesn't spend more than $100.

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\(\\ \rm\Rrightarrow 2x(5-x)+3x^2\)

\(\\ \rm\Rrightarrow 10x-2x^2+3x^2\)

\(\\ \rm\Rrightarrow 10x+(-2+3)x^2\)

\(\\ \rm\Rrightarrow 10x+x^2\)

\(\\ \rm\Rrightarrow x^2+10\)

Answer: $94.50 is how much sales tax will be charged at store B asumming you are talking about the image attached to this answer, if not could you attach an image?

Answer:

x^2-x-20

Step-by-step explanation:

Expand the polynomial using the FOIL method

The difference in the total costs of the 12 pairs of shoes between the two sites is $46.77,

Total cost is the sum up cost for all the individual process. we can find it by adding the cost for each steps.

In the given ques,

Super Sports is offering a 20% discount.

and shoes were originally priced at $72.50 and that a 6.5% sales tax will be applied.

On Double Dribbles, the same shoes were on for $54.75, and a 9% is added and has an extra $5.99 for shipping.

i.e. we  have to find the difference in the total costs..

Now we have to multiply 12 by 72.50. The answer to that is 870. Next, we need to multiply 8 by 870 and divide it by 10. The answer to that is 696. Then, we need to add the price and the tax. The price will be 100%, and the tax will be 6.5%. 100 + 6.5 = 106.5. After that, we need to 106.5 by 100. The answer it that is 1.065. Now do  times 1.065 by 696. And the answer to that is $741.24.

Do the same for other store.  The answer to it is 788.01.

Thus, making Super Sports a better deal.

As, we need to find the difference. So, 788.01 - 741.24 = $46.77.

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The complete question is :

The coach for a basketball team wants to buy new shoes for her 12 players.

Super Sports is offering a 20% discount on each pair of shoes, which were originally priced $72.50. A 6.5% sales tax will be applied to the discounted price.

The same shoes are also available on Double Dribble's website for $54.75. A 9% processing fee will be applied to the cost of the shoes, plus a shipping fee of $5.99 for each pair.

What is the difference in the total costs of the 12 pairs of shoes between the two stores?

Step-by-step explanation:

The ratio's can be expressed as fractions and you may compare those.

In order to compare fractions you need to bring them into equal denominator.

8 and 9 have LCM of 8*9 = 72 since they have no common factors.

The equivalent fractions with common denominator are:

Now we can compare the fractions:

Answer:

Find the radius.

Step-by-step explanation:

The task is to solve for area of a circle, and you are given the diameter.

The formula for area is :

Area of a circle = π × (radius)²

In this formula, there is only one input value, and that is the radius.

To find the radius, you must know the relation :

Radius x 2 = Diameter

Hence, the radius must be computed first and foremost.

1-a. The present value of option 1 is $30,000 and the present value of option 2 is approximately $31,745.15. 1-b. Option 1 gives Denzel the lower cost.

The present value of an investment is the current value of future cash flows, taking into account the time value of money. To calculate the present value in this scenario, we need to determine the value of each payment option.

For option 1, Denzel pays $30,000 today. Since there are no future cash flows, the present value is simply $30,000.
For option 2, Denzel pays $3,000 at the end of each quarter for three years. To calculate the present value, we need to discount each future cash flow using the discount rate of 3% per quarter.

We can use the formula for calculating the present value of an annuity:
PV = C * [(1 - (1 + r)^(-n)) / r]

Where:
PV = Present value
C = Cash flow per period
r = Discount rate per period
n = Number of periods

In this case, C = $3,000, r = 3% per quarter, and n = 12 quarters (3 years * 4 quarters per year). Plugging these values into the formula, we get:
PV = $3,000 * [(1 - (1 + 0.03)^(-12)) / 0.03]

Calculating this, we find that the present value of option 2 is approximately $31,745.15.
Therefore, the present value of option 1 is $30,000 and the present value of option 2 is $31,745.15.
To determine which option gives Denzel the lower cost, we compare the present values. Option 1 has a lower present value of $30,000 compared to option 2's present value of $31,745.15. Therefore, option 1 gives Denzel the lower cost.

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Answer:

the answer is yes

Answer:

Yes, it is greater because the higher a negative number is the less the value. If that makes sense.

Step-by-step explanation:

Answer:

138

Step-by-step explanation:

Answer:

C. 138

Step-by-step explanation:

Substitute the values for their given variables:

6(5)² - 5(4) + 8 ⇒ 150 - 20 + 8 ⇒ 138

Answer:

3.67 x 10^2 is larger

Step-by-step explanation:

Answer:

3.67 x 10^2 is larger than 1.9 x 10^2

Step-by-step explanation: Multiply

Answer:

Answer:

hope these helps

Step-by-step explanation:

y = 5x + 9 m = 5

y = -3x + 4 m = -3

y = 6 – 7x m = -7

y = 15 – 12x m = -12

Answer:

A

Step-by-step explanation:

Answer:

3/2

Step-by-step explanation:

Divide second triangle measurements by first to see what was used to multiply

6/4 = 3/2

7.5/5 = 3/2

12/8 = 3/2

Answer:

you earned 35 dollars raking leaves.

start with 63.50 and subtract the 44.99.

63.50-44.99=18.51.

then subtract the 53.41 dollars from 18.51 and get 35.

51.41-18.51=35

Answer: $35

Step-by-step explanation:

lets create an equation

x is going to be the amount of money gained by raking leaves

(63.50 + x) - 44.99 = 53.51

now remember, whatever you do to one side, you do to the other side.. oppositely.

so lets add 44.99 to both sides, either side of the equal sign, because the opposite of -44.99 is +44.99

63.50 + x = 98.50

now subtract 63.50 from both sides

x = 35

Answer:

Option (a).

Step-by-step explanation:

1) Pedro decided to build a rectangular enclosure with an area of 36 m². How many meters of canvas will he have to buy to make the enclosure considering that one side will be 3 meters more than the other?

Let the length of the rectangle be x then the width will be (3+x) m

The area of a rectangular enclosure is 36 m².

To find how may meter of canvas will he have to buy to make the enclosure, we can find its perimeter. Firstly finding length and breadth using formula of area of rectangle.

\(A=l\times b\\\\36=x(x+3)\\\\x^2+3x-36=0\)

\(x=\dfrac{-3+\sqrt{3^{2}-4(1)(-36)}}{2\times(1)},\dfrac{-3-\sqrt{3^{2}-4(1)(-36)}}{2\times(1)}\\\\x=4.68\ m\ \text{and}\ -7.68\ m\)

Neglecting negative value, we get the length is 4.64 m

Width, b = (3+x) = (3+4.64) = 7.64 m

The perimeter of rectangle is :

P = 2(l+b)

P = 2(4.64 m+7.64 m)

P = 24.56 m

or

P = 25 m

Hence, 25 m of canvas will he have to buy to make the enclosure.

Answer: The answer is 5.82417582

I dont know what your answer's are but if you can let me know i can tell you which one is best

Answer:5.824175824175824

Step-by-step explanation:

To find the average rate of change of a function over an interval, we need to calculate the slope of the secant line connecting the points on the function at the two endpoints of the interval.

The equation of a line in slope-intercept form is y = mx + b, where m is the slope of the line and b is the y-intercept. In the case of a secant line, we can calculate the slope by using the formula:

m = (y2 - y1) / (x2 - x1)

For the function y = x^2 + 4x - 1, we can plug in the values of x and y at the two endpoints of the interval, (-4 and 1), to find the slope of the secant line:

m = [(1)^2 + 4(1) - 1] - [(-4)^2 + 4(-4) - 1] / (1 - (-4))

Simplifying this expression, we get:

m = (1 + 4 - 1) - (16 + 16 - 1) / (-3)

This simplifies to:

m = -20 / -3

Therefore, the average rate of change of the function y = x^2 + 4x - 1 over the interval -4 ≤ x ≤ 1 is 6.5.

Answer:

(g*h)=x.

Step-by-step explanation:

the expression is equivalent

The value of the length of the arc indicated is,

⇒ 28π/3 feet

We have to given that;

Radius of circle = 14 feet

And, Central angle = 120 degree

Hence, We can formulate;

⇒ Arc length = 14 x 120 x π /180

⇒ Arc length = 28π/3

Thus, The value of the length of the arc indicated is,

⇒ 28π/3 feet

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Answer:

Step-by-step explanation:

Pythagorean Theorem

(AB)² = 5.6² + 3.9² = 46.57

radius r = (√46.57)/2 cm

area = πr² = π46.57/4 ≈ 36.5759925 cm l²

Answer:

x² + 34x + 104 = 0

x² + 34x = -104

x² + 34x + ((1/2)(34))² = -104 + ((1/2)(34))²

x² + 34x + 17² = -104 + 17²

x² + 34x + 289 = 185

(x + 17)² = 185

x + 17 = +√185

x = -17 + √185

Answer:

92.75 cm²

Step-by-step explanation:

area of polygon = area of ∆EDA + area of ∆ADC +area of ∆ACB.

area of triangles is ½×base×height.

area of ∆EDA=½×EF×AD

=½×4.5×12

=27 cm². -------->(1)

area of ∆ADC=½×AD×DC

=½×12×5

=30 cm². --------->(2)

area of ∆ACB=½×AC×BG

=½×AC×5.5

from pythagorean theorem

(AC)²=(AD)²+(CD)²

= 25+144

= 169 cm then. AC= 13 cm

then area of ∆ACB=½×5.5×13

=35.75 cm² ---------->(3)

from equation (1), (2) and (3):

then the area of polygon = 27 + 30 + 35.75

=92.75 cm²

The fraction which should go into the boxes marked A and B in their simplest form is 3/4 and 1/4 respectively.

Total number of fruits Amy has = 10

Number of Apples = 7

Number of Oranges = 3

First random pieces of fruits chosen:

Probability of choosing Apples = 6/9

Probability of choosing Oranges = 3/9

Second random pieces of fruits chosen:

Probability of choosing Apples = 6/8

= 3/4

Probability of choosing Oranges = 2/8

= 1/4

Therefore, the probability of choosing Apples or oranges as the second piece is 3/4 or 1/4 respectively.

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