Can someone help me please

Answer:d

Step-by-step explanation:

The answer is d. None of the above is true.

To calculate velocity, we need to use the equation:

Velocity = M * P / Y

Given:

M = 1,000

P = 2.25

Y = 2,000

Plugging in the values:

Velocity = 1,000 * 2.25 / 2,000

Simplifying:

Velocity = 2.25 / 2

The result is:

Velocity = 1.125

Therefore, the correct answer is: d. None of the above is true.

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We square the residuals when using the least-squares line method to find the line of best fit because we believe that huge negative residuals (i.e., points well below the line) are just as harmful as large positive residuals (i.e., points that are high above the line).

We treat both positive and negative disparities equally by squaring the residual values.  We cannot discover a single straight line that concurrently minimizes all residuals. The average (squared) residual value is instead minimized.

We might also take the absolute values of the residuals rather than squaring them. Positive disparities are viewed as just as harmful as negative ones under both strategies.

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Using the sample proportion and sample size, the test statistic is -9.02

To calculate the test statistic for a hypothesis test for the population proportion, we can use the formula:

Test statistic (Z) = (p - P) / √(P(1-P) / n)

Where:

Let's substitute the values into the formula:

Test statistic (Z) = ((207/450) - 0.47) / √(0.47(1-0.47) / 450)

Test statistic (Z) = -9.02

Rounding the test statistic to two decimal places, we get approximately -9.02

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A'(1, -4)

B'(3, 2)

C'(4. -2)

Step-by-step explanation:

Given

Triangle ABC with coordinates

A(1, 4), B(3, -2), C(4, 2)

To find

Coordinates of the image A'B'C' after a reflection over the x-axis

Solution

Rule for reflection over x-axis is

R(x) = (x, y) → (x, -y)

The coordinates will change as follows

A(1, 4) → A'(1, -4)

B(3, -2) → B'(3, 2)

C(4, 2) → C'(4. -2)

Answer:

219

Step-by-step explanation:

adulta 219×17=3723

5563-323=1840

1840÷10=184 kids

219+184=403

a. Null distribution is expected to be centered at the hypothesized proportion, which is 0.25.

b. Null distribution is expected to be centered at 25.

a. If you are using a proportion as your statistic, you expect the null distribution to be centered at the hypothesized proportion, which is 0.25 in this case.

b. If you are using a count as your statistic, you expect the null distribution to be centered at the expected count, which is np under the null hypothesis, where n is the sample size and p is the hypothesized proportion. In this case, np = 100 * 0.25 = 25.

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Answer:

\(-\frac35\)

Step-by-step explanation:

Slope Formula = \(\frac{y_1-y_2}{x_1-x_2}\)

Using this formula we can input the different y-values and x-values

Slope = \(\frac{-2-1}{2-(-3)}\)

          = \(\frac{-3}{5}\)

⚠️Watch out for "double negatives⚠️

Double negatives are when you subtract a negative number. This is very common in finding slope.

We encountered a double negative: 2 - (-3). Remember to use parenthesis for negative numbers and make sure that "-(-" is always "+"

The slope of this line is \(-\frac35\)

-Chetan K

Answer:

Step-by-step explanation:

Let's say 'x' as the percentage. Then:

Simplifying:

Dividing:

Answer in decimal form:

Converting:

Answer in percentage form:

Hence, 90% of $10 is $9.

Hoped this helped.

\(BrainiacUser1357\)

Answer:

7.171428571

Step-by-step explanation:

<3

Observations can you make from a comparison of the number of water supply stoppages reported by owner-occupied units versus renter-occupied units 1.

Total no. of times owner-occupied units had a water supply stoppage lasting 6 or more hours

547000 + 5012000 + 6110000 + 2544000 + 557000 = 14770000

x = no. of times owner-occupied units had a water supply stoppage.

P(x=0) = 547000/14770000

P(x=0) = 0.0370

Similarly, we have at x=1

P(x=1) = 5012000/14770000

P(x=1) = 0.3393

P(x=2) = 6110000/14770000

P(x=2) = 0.4137

P(x=3) = 2544000/14770000

P(x=3) = 0.1722

P(x=4) = 557000/14770000

P(x=4) = 0.0378

x           f(x)

0             0.0370

1              0.3393

2         0.4137

3              0.1722

4         0.0378

Total     1

Observations can you make from a comparison of the number of water supply stoppages reported by owner-occupied units versus renter-occupied units 1.

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Answer:

Option F: $71.43 is the correct answer.

Step-by-step explanation:

By the question we can observe that 35% of regular price is $25 so this information will be used to calculate the original price of the shoes.

Let

P be the price of shoes

and d be the discount

So

\(d = \$25\\P=?\)

The discount is 35% of P so

\(d = 35\%\ of\ P\\25 = 0.35 * P\\P = \frac{25}{0.35}\\P = 71.42857...\)

Rounding off to the nearest hundredth

The regular price is: $17.43

Hence, option F: $71.43 is the correct answer.

The solution to the equation by completing the square is x = 5 or 1/3

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

6x2 − 32x = −10

Express the exponents properly

So, we have the following representation

6x² − 32x = −10

Divide through by 6

So, we have

x² − 16/3x = −5/3

--------------------------------------

Take the coefficient of x

k = -16/3

Divide by 2

k = -8/3

Square both sides

k = 64/9

--------------------------------------

Add 64/9 to both sides

x² − 16/3x + 64/9 = 64/9 − 5/3

So, we have

x² − 16/3x + 64/9 = 49/9

This gives

(x - 8/3)² = 49/9

Take square roots

x - 8/3 = ±7/3

So, we have

x = 8/3 ±7/3

Solve for x

x = 5 or 1/3

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Answer:

D

Step-by-step explanation:

draw a line c on point3 and // to a and b, then angle3 will be 32+41 will be 73

There are 8,640 ways the five people can be seated in the eight empty seats.

To determine the number of ways the five people can be seated in eight empty seats, we can use the concept of permutations.

Since the order in which the people are seated matters, we need to calculate the number of permutations of five people taken from eight seats.

The formula for permutations is given by:

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

where n represents the total number of items and r represents the number of items taken at a time.

In this case, we have 8 empty seats (n) and want to seat 5 people (r). Therefore, we can calculate the number of ways as:

P(8, 5) = 8! / (8 - 5)!

= 8! / 3!

= (8 * 7 * 6 * 5 * 4 * 3!) / 3!

= 8 * 7 * 6 * 5 * 4

= 8,640

Hence, there are 8,640 ways the five people can be seated in the eight empty seats.

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Answer:

12 Nickels & 9 Dimes

Step-by-step explanation:

Systems of Equations

0.05x + 0.10y = 1.50

x + y = 21

Find the intercept and you get (12,9)

Answer:

Okie since i "answered" you can give him brainly

Step-by-step explanation:

Answer:

Step-by-step explanation:

We can use trigonometry to solve this problem. Let's draw a right triangle to represent the situation:

        |\

        | \

   h    |  \   9 ft

        |   \

        |    \

        |     \

        -------

        6 ft

Here, h represents the height on the wall where the ladder touches. We want to find the angle of elevation θ.

Using the right triangle, we can write:

sin(θ) = h / 9

cos(θ) = 6 / 9 = 2 / 3

We can solve for h using the Pythagorean theorem:

h^2 + 6^2 = 9^2

h^2 = 9^2 - 6^2

h = √(9^2 - 6^2)

h = √45

h = 3√5

So, sin(θ) = 3√5 / 9 = √5 / 3. We can solve for θ by taking the inverse sine:

θ = sin^-1(√5 / 3)

θ ≈ 37.5 degrees

Therefore, to the nearest tenth of a degree, the angle of elevation the ladder makes with the ground is 37.5 degrees.

Choice B) Jacket world has the better deal.

Choice D) Both stores are offering a 25% discount on the jacket.

Choice E) The difference in sale prices at the two stores is $7.50

===========================================================

Explanation:

25% = 0.25

25% of $190 = 0.25*190 = 47.50

190 - 47.50 = 142.5

This indicates the price at Jacket World is $142.5 instead of $150

Therefore, choice A is false.

---------------------

Choice B on the other hand is true because $142.50 at Jacket World is a lower price compared to $150 at Clothes Are Us. Jacket World has the better deal.

---------------------

Because choice B was shown to be true, there's no way choice C can be true as well. Otherwise, we'd have a contradiction. So we can rule out choice C.

---------------------

Let's find the percentage discount for Clothes Are Us.

The original price is $200 and its sale price is $150. So you save 200-150 = 50 dollars.

Divide that over the original price to find the discount: 50/200 = 0.25 = 25%

Therefore, Clothes Are Us has the same discount percentage as Jacket World. Both have a 25% discount. Choice D is true.

---------------------

Comparing the two sale prices of $150 (Clothes Are Us) and $142.50 (Jacket World), the difference in price is 150-142.50 = 7.50; this means choice E is a true statement.

Answer:

(5, 2 )

Step-by-step explanation:

Given the 2 equations

2x + 3y = 16 → (1)

6x - 5y = 20 → (2)

Multiplying (1) by - 3 and adding to (2) will eliminate the x- term

- 6x - 9y = - 48 → (3)

Add (2) and (3) term by term to eliminate x

0 - 14y = - 28

- 14y = - 28 ( divide both sides by - 14 )

y = 2

Substitute y = 2 into either of the 2 equations and solve for x

Substituting into (1)

2x + 3(2) = 16

2x + 6 = 16 ( subtract 6 from both sides )

2x = 10 ( divide both sides by 2 )

x = 5

solution is (5, 2 )

I) f is continuous at x=2

II) f is differentiable at x=2

These both f (function ) are true

The given limit can be recognized as the definition of the derivative of f at x=2. Specifically, it states that the derivative of f at x=2 is equal to 5.

Using this information, we can make the following conclusions:

I) We cannot say for sure whether f is continuous at x=2 based on the given limit alone. While a function being differentiable at a point implies that it is also continuous at that point, the converse is not necessarily true. Therefore, we would need additional information to determine whether f is continuous at x=2.

II) The given limit implies that f is differentiable at x=2, since the limit exists and is finite. Specifically, we can say that the derivative of f at x=2 exists and is equal to 5.

III) The given limit also implies that the derivative of f is continuous at x=2. This is because the limit defines a continuous function at x=2, and it is well-known that if a function is differentiable at a point, then it is also continuous at that point.

Therefore, the correct answers are II and III.

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Tthe number of miles in a day at which the rental costs for Company A and Company B are the same is    500 miles

The truck is driven X miles per day

Charges of company A will be = 90+0.5x

Charges of company B will be =40+0.60x

We need to find the value of X when charges of both companies are same

90+0.5X= 40+0.60x

   90-40 = 0.60x-0,50x

            50 = 0.10x

                    50/0.10= X

                             X= 500

The charges of both companies will be same if truck is driven 500 miles per day

The logical symbols, such as\(↔, →, ∧, and ~\), represent logical operations. In the given question, we are to rewrite the proposition\((p → ( → )) ↔ ((p ∧ ) → )\) by utilizing only logical operators ∧ and ~.

The following steps can be used to solve the given problem: We can first make use of the implication law, which states that p → q is equivalent to ~p ∨ q to obtain:
\(~p ∨ ( → ) ↔ (~p ∧ ~) ∨ ( ∧ )\)

Next, we can make use of De Morgan's law to eliminate disjunctions and make use of the conjunction law, which states that p ∧ q is equivalent to ~\((~p ∨ ~q)\), to get:
\(~[~(~p ∨ ( → )) ∨ ( ∧ ~)] ∧ ~[~( ∧ ~) ∨ (~(p ∧ ~))]\)
We can now distribute the negation and obtain:
\([~(~p ∨ ( → )) ∧ ~( ∧ ~)] ∧ [( ∧ ~) ∧ ~(p ∧ ~)]\)

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-1/3 × 3/5

= -1 × 3/ 3 × 5

= -3/15

= -1/5 (divide the fraction by 3 to convert  it to the  simplest form.)

Hope it helps!

RainbowSalt2222

_______

Comment if you still have doubts.

The given equation 6x+2y=13 is a linear equation in two variables. In this equation, x and y are variables while 6 and 2 are their respective coefficients, and 13 is a constant term. The equation can be represented as a straight line on a graph. The slope of this line is -3, and it intersects the y-axis at the point (0, 13/2).

In this equation, if we substitute x=0, then y=13/2, and if we substitute y=0, then x=13/6. These are the two points that the line passes through the x and y-axis.

A linear equation is a polynomial equation that is of the first degree, meaning the variables in the equation are not raised to any powers other than one. This equation is in the standard form where the variables are in the first degree. 6x + 2y = 13 is the form of the given linear equation. x and y are the two variables, and 6 and 2 are their respective coefficients. The equation can be represented as a straight line on a graph. The slope-intercept form of this equation is y = -3x + 13/2. The equation is also in standard form.

When x = 0, the equation becomes 2y = 13. This means that the point of intersection is (0, 13/2) when y = 0, the equation becomes 6x = 13, and the point of intersection is (13/6, 0). The slope of the line is -3. When x increases by 1, y decreases by 3.

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As per the given graph, the shape of the coordinate is square.

The term coordinate in math is defined as a set of numbers or numbers and letters together that show you a position on a map.

Here we given that  the coordinates (1, 1), (4, 4), (7, 1), and (4, -2) are joined.

Then we have to identified the form of the shape that has been formed using the coordinates.

Here we know that when the coordinates are joined, then the following graph can be obtained and when we observe that all the sides of the figure formed are of the same length and the diagonals bisect each other at 90°.

Through the graph we have identified that the lengths of the diagonals are equal and the opposite sides are parallel.

Therefore, the properties of a square are matched.

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Answer: 63

Step-by-step explanation:

180-117=63

Answer:

63

Step-by-step explanation:

Pretty simple really.

A straight line is 180...

180-117=63

Answer 63

TADAAA!!!

Answer:

-24f+72

Step-by-step explanation:

You distribute the -8 to 3f and -9 by multiplying.    -8*3f=-24f    -8*-9=72

−24+72

Step-by-step explanation: