Luna and her family are season ticket holders for their favorite baseball team. Last year, the cost of season tickets was $1,030. This year, the cost is $927. What was the percent of decrease in the cost of season tickets?

Answer:

Associative property

Step-by-step explanation:

The given property is:

A + (B +  C) = (A + B) + C

which is called "associative property of addition".

Hence, this property is used in the given expression which is "rearranging the parenthesis does not affect the result."

\(\rule[225]{225}{2}\)

Hope this helped!

The observation is located to the left of the mean by a distance of 1.2 standard deviations.

The z-score of an observation represents the number of standard deviations the observation is away from the mean.

If the z-score for a particular observation is z = -1.2, this means that the observation is 1.2 standard deviations below the mean.

If the mean is represented by μ and the standard deviation by σ, then we can express this observation as:

observation = μ + (z * σ)

observation = μ + (-1.2 * σ)

This means that the observation is located to the left of the mean by a distance of 1.2 standard deviations.

For example, The z-score represents the number of standard deviations an observation is above or below the mean of the distribution.

In this case, a z-score of -1.2 indicates that the observation is 1.2 standard deviations below the mean height of the group.

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Answer:

B

Step-by-step explanation:

Just reduce your x's and y's. The x^-1 cancels with the x^5, and the y^-9 and y^-3 get simplified. After some basic simplifying, you get answer B.

Answer:

vertex = (2, 9 )

Step-by-step explanation:

The vertex is the turning point on the graph

This occurs at (2, 9 )

Answer:

Step-by-step explanation:

-10.6*0.5=m+11.7

-5.3=m+11.7

-5.3-11.7=m

-17=m

14.2=2(-5.8+t)

14.2=-11.6+2t

14.2+11.6=2t

25.8=2t

25.8/2=t

12.9=t

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Answer:

choice c has a value of .9, so c

Step-by-step explanation:

i hope this helps

Answer:

Ans: The number will be six (6)

In this triangle, the product of tan A and tan C is `(BC)^2/(AB)^2`.

The given triangle ABC has angle A measuring 45 degrees, angle B measuring 90 degrees, and angle C measuring 45 degrees , Answer: `(BC)^2/(AB)^2`.

We have to find the product of tan A and tan C.

In triangle ABC, tan A and tan C are equal as the opposite and adjacent sides of angles A and C are the same.

So, we have, tan A = tan C

Therefore, the product of tan A and tan C will be equal to (tan A)^2 or (tan C)^2.

Using the formula of tan: tan A = opposite/adjacent=BC/A Band, tan C = opposite/adjacent=AB/BC.

Thus, tan A = BC/AB tan C = AB/BC Taking the ratio of these two equations, we have: tan A/tan C = BC/AB ÷ AB/BC Tan A * tan C = BC^2/AB^2So, the product of tan A and tan C is equal to `(BC)^2/(AB)^2`.

Answer: `(BC)^2/(AB)^2`.

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Answer:

\(x\geq -\frac{15}{2}\)

Step-by-step explanation:

add 4 on both sides

leaves you with 15 on the right side

you then divide by negative 2

since you divide by a negative you have to switch the sign

Isolate the variable by dividing each side by factors that don't contain the variable.

Inequality Form:

x ≥ −15/2

Interval Notation:

[−15/2, ∞)

Answer:

Step-by-step explanation:

Geometric mean = 7.3

Answer:

This is the isosceles right triangle as one of the angles is 45°.

The second leg is same as the first and the hypotenuse is √2 times the leg.

This is the 30°x60°x90° triangle and the ratio of sides is:

Since the hypotenuse is 16, the other sides are:

Geometric mean of two numbers is the square root of their product.

Correct choice is C

There will be 221 highway signs on the road trip.

What is Total Length?

Whole Length (TL) is the measurement taken in a straight line, with the fish lying on its side, from the tip of the snout to the end of the tail (caudal fin).

The total length of the road trip is 13.2 hours.

Highway signs are posted every 0.06 hours. To find out how many highway signs are on the road trip, we can divide the total length of the road trip by the interval between each sign and then add one more sign for the end of the road trip:

(number of signs) = (total length of road trip) / (interval between signs) + 1

Substituting the values, we get:

(number of signs) = 13.2 / 0.06 + 1

(number of signs) = 220 + 1

(number of signs) = 221

Therefore, there will be 221 highway signs on the road trip.

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Answer:

through a given plane

Step-by-step explanation:

Answer:

3 cm

Step-by-step explanation:

Answer:

not a right triangle in maths

Step-by-step explanation:

FALSE, the Pythagorean Theorem is not satisfied

but true in real life, i mean the shape

The problem describes a scenario where a device runs until either of two components fails, and the joint density function of the lifetimes of the two components is given.

The task is to calculate the probability that the device fails during its first hour of operation. The possible values for the lifetimes of the two components are between 0 and 3 hours, and the joint density function is f(x, y) = (x + y)/27. The answer choices are 0.41, 0.59, 0.44, 0.96, and 0.04.

To solve this problem, we need to integrate the joint density function over the area where x + y is less than or equal to 1. This is because the device fails during its first hour of operation if and only if the lifetime of one of the components is less than or equal to 1 hour. The integration limits are from 0 to 1 for y and from 0 to 1 - y for x, since x + y cannot be greater than 1. Evaluating this double integral gives us the answer of 0.44. Therefore, the correct answer is option (c).

In summary, the problem involves finding the probability that a device fails during its first hour of operation, given the joint density function of the lifetimes of its two components. To solve the problem, we need to integrate the joint density function over the area where x + y is less than or equal to 1. The correct answer is 0.44.

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Answer:

13101687

Alternate form

1.3101687×10^7

The value to this operation is approximately 13.1017

Data;

To solve this problem, we have to multiply the two decimal numbers given such that we take into consideration their place value.

In this given case,

\(1.567*8.361=13.101687\)

What we need to do here, is multiply the tenths value by all, then followed by the hundredth value and lastly the thousandth value across and then take the ten value just after the decimal place.

NB; Do not put the decimal value until you're done multiplying.

The answer can be further approximated to 13.1017

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Answer:

Step-by-step explanation:

a) In an inverse proportion, as one variable increases, the other variable decreases in a way that their product remains constant.

The correct graph for an inverse proportion would show a curve that approaches the x-axis but never touches it. This curve represents the decreasing relationship between y and x.

b) To find the value of y when x = 4, we can use the given information.

Given:

y is inversely proportional to x

When x = 2, y = 1/2

In an inverse proportion, we can write the equation as:

y = k/x

To find the constant of proportionality (k), we can substitute the values (x, y) = (2, 1/2) into the equation:

1/2 = k/2

k = 1

Now that we have the value of k, we can use it to find y when x = 4:

y = k/x

y = 1/4

Therefore, when x = 4, y = 1/4.

Answer: It's A

Step-by-step explanation:

The dy/dx of y cos(x) = 4x² + 3y² by implicit differentiation is dy/dx = (8x - y cos(x))/(3y + 2y*cos(x)).


1. Differentiate both sides of the equation with respect to x using the product rule and chain rule.

2. For y cos(x), the derivative is -y sin(x) + cos(x) dy/dx.

3. For 4x² + 3y², the derivative is 8x + 6y dy/dx.

4. Set the derivatives equal: -y sin(x) + cos(x) dy/dx = 8x + 6y dy/dx.

5. Solve for dy/dx by moving all terms with dy/dx to one side: dy/dx (cos(x) - 6y) = 8x + y sin(x).

6. Divide by (cos(x) - 6y) to get dy/dx = (8x - y cos(x))/(3y + 2y*cos(x)).

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In the given study comparing the effects of regular-fat cheese to reduced-fat cheese on LDL cholesterol levels, the dependent variable(s) refers to the outcome(s) that are being measured or observed. In this case, the dependent variable in this study is: b. LDL levels

The dependent variable is the variable that is measured or observed to assess the effect of the independent variable(s). In this case, the study is comparing the effects of regular-fat cheese and reduced-fat cheese on LDL cholesterol levels.

LDL cholesterol levels are the outcome being measured to determine the impact of the different types of cheese on cholesterol. Therefore, option b, LDL levels, is the dependent variable in this study. Options a (regular fat cheese) and c (reduced fat cheese) are not the dependent variables but rather the independent variables, as they are the different conditions being compared to assess their effect on LDL levels.

Option d (both a and b) and option e (both b and c) are incorrect because regular-fat cheese (option a) is an independent variable, not a dependent variable.

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Answer:

nothing at all.

Step-by-step explanation:

Answer: The value for X is 16!~

x = 16

I had this question before!

Answer:

0839

Step-by-step explanation:

First of all, let's cancel 0620 and 0746, because they dont have any other number that has the same last 2 digits as them. Jean would've immediately known the train number if it was one of these two.

Now, when Marie says "I'm sure that neither does Jean", it means she is guaranteed Jean doesn't know the train number. It mean she couldnt've gotten 06 or 07, as 0620 and 0746 have it.

We're left with 0825,0839,0917,0925 and 0950
When Jean replies he knows the train number, it means he couldnt've gotten 25, as it's repeated.

And when Marie responds she knows as well, she couldnt've gotten 09, as it's also repeated.

We can cancel 0825,0917,0925 and 0950

So, the train number is 0839

J = {-3, -2, -1}

J={x | x is an integer and -4 < x ≤ to -1}​

Integers are negative and positive whole numbers. This means that decimals will not be included in the set

From the set, x will start from integers greater than -4 but stop at -1.

The given set can be rewritten by listing as:

J = {-3, -2, -1}

Answer:

The orthocenter is the intersection point of the altitudes of a triangle.

Step-by-step explanation:

There are three altitudes in any triangle, one for each side.

Answer:

False

Step-by-step explanation:

When a constant is added to every data value in a data set?

If you add a constant to every value, the mean and median increase by the same constant. For example, suppose you have a set of scores with a mean equal to 5 and a median equal to 6. If you add 10 to every score, the new mean will be 5 + 10 = 15; and the new median will be 6 + 10 = 16.

BRAINLIEST?

Answer:

False

Step-by-step explanation:

Answer:

\(\dfrac{6x+2}5}\)

Step-by-step explanation:

The given expression is :

\(\dfrac{3x}{5}+\dfrac{2}{5}+\dfrac{3x}{5}\)

We need to write the equivalent expression for the above expression.

Taking like terms together,

\(=(\dfrac{3x}{5}+\dfrac{3x}{5})+\dfrac{2}{5}\\\\=\dfrac{3x+3x}{5}+\dfrac{2}{5}\\\\=\dfrac{6x}{5}+\dfrac{2}{5}\\\\=\dfrac{6x+2}5}\)

So, the equivalent expression is \(\dfrac{6x+2}5}\).

Answer: x=14

Step-by-step explanation:Simplify both sides of the equation(Distribute),Subtract 4/5 from both sides.Multiply both sides by 5/(-1).

Answer:

No, this is not a correct amount. The correct amount is $203.88

Step-by-step explanation:

The computation of the credit card amount is shown below:

Given that

The credit card is $220.87

But if we calculate the credit card amount, so it would be

= 12 months × 16.99

= $203.88

hence, the credit amount is $203.88

And, the given amount is wrong

So, the correct amount is $203.88