T and I Construction is paving a rectangular-shaped parking lot with Hot Asphalt Mix. The parking lot is 100 yards by 44 yards and will have a 9-inch base. If the Hot Asphalt Mix has a density of 140 pounds per cubic foot, about how many tons of mix will be needed to pave the parking lot?


A. ) 77


B. ) 91


C. ) 2079


D. ) 2772

Answer:

8

Step-by-step explanation:

Answer:

48 would be your answer. <3

Step-by-step explanation:

1/4y=12

Multiply both sides by 4.

4 * (1/4y) = (4) * (12)

y=48

The mass of the marble lifter by a sculpture is 0.0306 kg.

A cuboid is a three-dimensional closed figure which has volume along with surface area.

The volume of a cuboid is the product of its length, width, and height.

The total surface area of a cuboid is 2(lw + wh + wl) and the lateral surface area is 2(l + w)×h.

We know the volume of a cuboid is (length×width×height).

Therefore, The volume of this cuboid is (1×0.6×0.3) = 0.18 m³.

The marble has a density of 2.7g/cm which is equivalent to 0.17kg/meter.

We know Mass = volume×density.

Therefore, The mass of the marble is 0.17×10.18 kg.

= 0.0306 kg.

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Step-by-step explanation:

Substitute g = 10, and h = 5 into the expression:

\(4 - 0.25(10) + 0.5(5)\)

Multiply:

\(4 - 2.5 + 2.5\)

Cross out -2.5 and 2.5, as they're equal to 0:

4.

It appears that a Type II error was made in the hypothesis test conducted by the user.

A Type II error, also known as a "false negative," is a statistical error that occurs when a null hypothesis is actually true, but a hypothesis test fails to reject the null hypothesis, leading to the incorrect conclusion that there is no significant effect or difference when, in fact, there is.

According to the given information:

Based on the given information, it appears that a Type II error was made in the hypothesis test conducted by the user.

In this case, the user claimed that the mean number of shades the toothpaste whitens teeth is less than four, and conducted a hypothesis test to test this claim. However, the given information states that the true mean number of shades the toothpaste whitens teeth is actually four. If the user failed to reject the null hypothesis, it means that they did not find enough evidence to support their claim that the mean number of shades is less than four, even though it is actually true.

This would be a Type II error because the null hypothesis (which assumes that the mean number of shades is four) is actually true, but the test failed to detect this and erroneously failed to reject the null hypothesis. In other words, the user made an error in concluding that there is no significant effect or difference, when in fact there is.

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Answer:

.5

Step-by-step explanation:

because a pint is 2 cups so divide by 4  because you multiply that 2 by another 2 is 4 so once you do that its .5

Answer:

34

Step-by-step explanation:

Substitute the values.

s = 3 and t = -2

8s-5t

8 (3) - 5(-2)

( 8 x 3 ) - ( 5 x -2 )

24 + 10 [ - x - = + ]

= 34

Answer:

Step-by-step explanation:

Angle formed by two chords = 1/2(sum of intercepted arcs)

The expected value of M does not change in a predictable manner when sample size increases; it can increase, decrease, or stay the same.

The expected value of M, or the mean of a sample, is determined by the values of the individual elements that comprise it. As such, when the sample size increases, the expected value of M could increase, decrease, or remain constant, depending on the particular values of the individual elements in the sample. This is because the expected value of M is the average of the individual elements and the contribution of each element to the average depends on its value and the number of elements in the sample. Therefore, the expected value of M does not change in a predictable manner when sample size increases. Depending on the individual elements in the sample, the expected value of M could be higher, lower, or constant.

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Answer:

175.9

Step-by-step explanation:

AL=2πrh=2·π·4·7≈175.92919 rounded to the nearest tenth would be 175.9

Answer:I don’t Knowt Try To Answer it yourself

Step-by-step explanation:

Answer:

8<8 and 2>8 are both false

Answer:

B

Step-by-step explanation:

The time complexity of an algorithm depends on both the number of steps it performs and the time taken by each step. If an algorithm performs f(n) steps, and each step takes g(n) time, then the total time taken by the algorithm would be given by the product f(n)g(n).

This means that as the input size n grows larger, the total time taken by the algorithm would also grow larger, based on the growth rate of f(n) and g(n). If f(n) and g(n) both have polynomial growth rates, such as \(O(n^2)\), then the time complexity of the algorithm would also have a polynomial growth rate, which can be expressed as \(O(n^4)\).

On the other hand, if f(n) and g(n) have exponential growth rates, such as \(O(2^n)\), then the time complexity of the algorithm would have an exponential growth rate, which can be expressed as \(O(2^n)\).

Therefore, it is important to consider both the number of steps and the time taken by each step when analyzing the time complexity of an algorithm.

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To find dz/dt using the chain rule, we need to calculate the derivatives of z with respect to x and y separately, and then multiply them by the derivatives of x and y with respect to t.

Given:

z =  \(cosh^{2} (xy)\)

x = (1/2)t

y = \(e^{t}\)

Let's start by finding the partial derivatives of z with respect to x and y:

∂z/∂x = \(2cosh(xy) * sinh(xy) * y\)  (using the chain rule)

∂z/∂y = \(2cosh(xy) *sinh(xy)*x\)    (using the chain rule)

Next, let's find the derivatives of x and y with respect to t:

dx/dt = 1/2

dy/dt = \(e^{t}\)

Finally, we can use the chain rule to find dz/dt:

dz/dt = (∂z/∂x)(dx/dt) + (∂z/∂y)(dy/dt)

      = \(2cosh(xy) *sinh(xy)*y*(1/2) + 2cosh(xy)*sinh(xy)*x*e^{t}\)

Now, substitute the given expressions for x and y:

\(dz/dt = 2cosh((1/2)t*e^{t} * sinh((1/2)t*e^{t} *(1/2)* + 2cosh((1/2)t*e^{t} *sinh((1/2)t*e^{t} *((1/2)t)\)

Simplifying further, we have:

\(dz/dt = cosh((1/2)t*e^{t} *sinh((1/2)t*e^{t})* e^{t} + cosh((1/2)t* e^{t}*sinh((1/2)t*e^{t}* ((1/2)t)\)

This is the expression for dz/dt using the chain rule with the given values of x and y.

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Answer:

39

Step-by-step explanation:

0.40 x 65 = 26

65 - 26 = 39

The school sold 39 early-admission tickets.

Answer:what is the question i have 40% but not 90%

Step-by-step explanation:

Answer:

9) we get value of x: \(\mathbf{x=-4+\sqrt{42}\:i, x=-4-\sqrt{42}\:i}\)

Option C is correct.

10) The difference is \(2k^3+3k-1\)

Option A is correct.

Step-by-step explanation:

9) We need to solve:

\(x^2+8x+58=0\)

Solving using quadratic formula: \(x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\)

We have a=1, b=8 and c=58

Putting values and finding value of x

\(x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\\x=\frac{-8\pm\sqrt{(8)^2-4(1)(58)}}{2(1)}\\x=\frac{-8\pm\sqrt{64-232}}{2}\\x=\frac{-8\pm\sqrt{-168}}{2}\\We\:know\sqrt{-1}=i \\x=\frac{-8\pm2\sqrt{42}\:i}{2}\\x=\frac{2(-4\pm\sqrt{42}\:i)}{2}\\x=\frac{2(-4+\sqrt{42}\:i)}{2}, x=\frac{2(-4-\sqrt{42}\:i)}{2}\\x=-4+\sqrt{42}\:i, x=-4-\sqrt{42}\:i\)

So, we get value of x: \(\mathbf{x=-4+\sqrt{42}\:i, x=-4-\sqrt{42}\:i}\)

Option C is correct.

10) \((5-2k^3-5k)-(-4k^2+6-8k)\)

Combining like terms and subtracting:

\((5-2k^3-5k)-(-4k^3+6-8k)\\=5-2k^3-5k+4k^3-6+8k\\=-2k^3+4k^3-5k+8k+5-6\\=2k^3+3k-1\)

The difference is \(2k^3+3k-1\)

Option A is correct.

Answer:

7^3 x 7^8

Step-by-step explanation:

I used a calculator, pls let me know if im incorrect

Answer:

A. It is the graph of y = x translated 7 units up.

Step-by-step explanation:

Imagine you have a friend named Y who always copies what you do. If you walk forward, Y walks forward. If you jump, Y jumps. If you eat a sandwich, Y eats a sandwich. You and Y are like twins, except Y is always one step behind you. Now imagine you have another friend named X who likes to give you money. Every time you see X, he gives you a dollar. You're happy, but Y is jealous. He wants money too. So he makes a deal with X: every time X gives you a dollar, he also gives Y a dollar plus seven more. That way, Y gets more money than you. How do you feel about that? Not so happy, right? Well, that's what happens when you add 7 to y = x. You're still doing the same thing as before, but Y is getting more than you by 7 units. He's moving up on the money scale, while you stay the same. The graph of y = x + 7 shows this relationship: Y is always above you by 7 units, no matter what X does. The other options don't make sense because they change how Y copies you or how X gives you money. Option B means that Y copies you but with a delay of 7 units. Option C means that Y copies you but exaggerates everything by 7 times. Option D means that Y copies you but gets less money than you by 7 units.

Answer:

1

Step-by-step explanation:

For the top, you can write it as (2-b)^2 = (-1(b-2))^2 = (-1)^2(b-2)^2 = 1(b-2)^2 = (b-2)^2. Putting that back in, we get: ((b-2)^2)/((b-2)^2) = 1 because the top and bottom cancel.

I hope this helps! :)

Answer:

71.25 (or 71 1/4) mi

Step-by-step explanation:

15/4 = 3.75

1 in = 3.75 mi

3.75 × 19 = 71.25 mi

The remainder when N is divided by 1000 is 106.

The Principle of Inclusion-Exclusion, often known as PIE, offers a method/formula for organizing information about the size of each set, the number of elements in the union of a given set of sets, and the size of all potential set intersections.

From the question,

First, we think about all the possible divisions of the 7×1 board. Since we require at least one tile of each color, we exclude the cases of just one or two pieces.

Three pieces = 5+1+1 , 4+2+1 , 4+1+2 etc (6C2) = 15 ways

Four pieces = 6C3 = 20

Five pieces = 6C4 = 15

Six pieces = 6C5 = 6

Seven pieces =6C6 = 1

Now, we apply the Principle of Inclusion-Exclusion to consider how many ways to color them:

Three pieces : 3³ - 3 × 2³ + 3 = 6

Four pieces: 3⁴ - 3 × 2⁴ + 3 = 36

Five  pieces : 3⁵ - 3 × 2⁵ + 3 = 150

Six pieces : 3⁶ - 3 × 2⁶ + 3 = 540

Seven pieces : 3⁷ - 3 × 2⁷ + 3 = 1806

Adding them together, we get

15×6 + 20×36 + 15×150 + 6×540 + 1×1806 = 8106

Hence, the remainder when it is divided by 1000 is 106.

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Answer:

106

Step-by-step explanation:

The correct option regarding the inverse function is given by:

B.They are reflections of each other.

The inverse function is the reflection of the original function over the line y = x, that is, they are reflections of each other, hence option B is correct.

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Answer:

Step-by-step explanation:

The root which is 2 is the fractional portion of your exponent

\(\sqrt{x^{7} y^{12} }\)

=\((x^{7} y^{12} )^{\frac{1}{2} }\)              >You can distribute 1/2 to each term by multiplying

\(=x^{\frac{7}{2} } y^{6\)

The key thing to look for to determine whether a sequence is geometric is to see whether the ratio between consecutive terms - the number I would multiply one term by to get the next - is constant.

By inspection, we see that the fourth answer choice satisfies that, as \(\frac{81}{27}=\frac{27}{9}=\frac{9}{3}=\frac{3}{1}=3.\) Why not the first? We have \(2=\frac{12}{6}\ne\frac{6}{2}=3.\)

The third choice is not a geometric sequence, but rather an arithmetic sequence, where the difference between consecutive terms is constant. Just to make sure that it isn't geometric, we compute \(\frac{14}{9}\ne\frac{9}{4}.\)

The second sequence is not geometric (although it does eventually converge to 1, but not its corresponding series), as \(\frac{4}{3}=\frac{2/3}{1/2}\ne\frac{3/4}{2/3}=\frac{9}{8}.\)

Answer:

its D

Step-by-step explanation:

The value today of a money machine is $4,712.25. The value of the investment is $31,323.15.

Question 9:

To calculate the present value of the money machine, we can use the formula for the present value of an ordinary annuity:

PV = P * [(1 - (1 + r)^(-n)) / r],

where PV is the present value, P is the annual payment, r is the interest rate per period, and n is the number of periods.

Given:

Annual payment (P) = $1000,

Interest rate per period (r) = 4% = 0.04,

Number of periods (n) = 6 - 2 = 4.

Plugging in the values, we get:

PV = $1000 * [(1 - (1 + 0.04)^(-4)) / 0.04] = $4712.25.

Therefore, the value today of the money machine is $4712.25.

Question 10:

To calculate the present value of the investment, we can use the formula for the present value of a perpetuity:

PV = P / r,

where PV is the present value, P is the periodic payment, and r is the interest rate per period.

Given:

Periodic payment (P) = $500,

Interest rate per period (r) = 12% / 12 = 0.12 / 12 = 0.01.

Plugging in the values, we get:

PV = $500 / 0.01 = $31,500.

Therefore, the value of the investment today is $31,323.15.

In summary, the value today of the money machine that will pay $1000 per year for 6 years is $4712.25, and the value of the investment that will pay $500 per month starting four years from today and continue indefinitely is $31,323.15.

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Answer:I feel bad

Step-by-step explanation:

Answer:

18

Explanation:

Vectors u and z are defined below:

The dot product of u and z is evaluated below:

The dot product is 18.

Answer:The 99% confidence interval is

To find the 99% confidence interval for the mean systolic blood pressure (SBP) level, we use the formula:

CONFIDENCE INTERVAL = Mean ± Z * (Standard Deviation / √n)

Where:

Mean is the sample mean of SBP

Z is the Z-score corresponding to the desired confidence level

Standard Deviation is the population standard deviation

Explanation:

Given that the sample size is 13 and the standard deviation is 10, we need to calculate the sample mean and the Z-score for the 99% confidence level.

First, we calculate the sample mean:

Mean = (129 + 134 + 142 + 114 + 120 + 116 + 133 + 142 + 138 + 148 + 129 + 133 + 140) / 13

= 1724 / 13

≈ 132.62

Next, we need to determine the Z-score for a 99% confidence level. The Z-score can be found using a Z-table or a statistical calculator. For a 99% confidence level, the Z-score is approximately 2.576.

Now, we can calculate the confidence interval:

Confidence Interval = 132.62 ± 2.576 * (10 / √13)

132.62 ± 2.576 * (10 / 3.6056)

≈ 132.62 ± 2.576 * 2.771

≈ 132.62 ± 7.147

Therefore, the 99% confidence interval for the mean SBP level is approximately (125.47, 139.77).

Answer:

More specifically, the definition of rational numbers says that any rational number can be written as the ratio of p to q, where p and q are integers and q is not zero.