help me solve this problem

The density of the given metal is 19.3g/cm³ . Then, the correct answer to this given question is Option E.

The given mass of  the metal is 611 g  and it is kept in a elevated cylinder that contains 25.1 mL of water,
Now, let us increase the water level to 56.7 mL. The metal  volume can be evaluated by subtracting the initial volume  from the final volume of water released by the metal.

Hence,
Metal volume = final volume - initial volume
= 56.7 mL - 25.1 mL
= 31.6 mL

Therefore,
Density = Mass / Volume
= 611 g/31.6 mL
= 19.3 g/cm³

The density of the given metal is 19.3g/cm³ . Then, the correct answer to this given question is Option E.


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Given the expression:

We start from the inner asociative symbols: the parenthesis. We have that 3-3=0, then:

Now, we, have that 10^2=100 and 2(12)=24, then:

therefore, the simplified result of the expression x^2-2[12-(3-3)] is 76

The primal solution does not satisfy all the dual constraints, the solution to the dual problem is infeasible.

To construct the dual problem, we'll use the given primal problem and its constraints. The primal problem is as follows:

Maximize: z = x1 + 2x2

Subject to:

-2x1 + x2 + x3 + x4 = 7

-x1 + 2x2 + x5 = 3

x1, x2, x3, x4, x5 ≥ 0

Now, let's construct the dual problem:

Minimize: w = 7y1 + 3y2

Subject to:

-2y1 - y2 ≥ 1

y1 + 2y2 ≥ 2

y1 + y2 ≤ 0

y1, y2 ≥ 0

Note that the coefficients in the dual problem come from the coefficients in the primal problem, but the inequalities are flipped and the objective function coefficients are used as the right-hand side values.

Now, let's find the solution to the dual problem using the given primal solution [3, 5, 3, 0, 0]T.

We substitute the primal solution into the dual constraints and find the maximum value of the objective function:

For the constraint -2y1 - y2 ≥ 1:

-2(3) - 5 ≥ 1

-6 - 5 ≥ 1

-11 ≥ 1 (not satisfied)

For the constraint y1 + 2y2 ≥ 2:

3 + 2(5) ≥ 2

3 + 10 ≥ 2

13 ≥ 2 (satisfied)

For the constraint y1 + y2 ≤ 0:

3 + 5 ≤ 0

8 ≤ 0 (not satisfied)

Since the primal solution does not satisfy all the dual constraints, the solution to the dual problem is infeasible.

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Answer:

Answer:

Use Mixed Numbers 3/6 ÷ 4

This is the same as division with fractions.

Step-by-step explanation:

Answer:

Step-by-step explanation:

1

-

8

Answer:

1950 to 1955, and 1958 to the present

Step-by-step explanation:

did the assignment

Answer:

D. 1950 to 1955, and 1958 to the present

Step-by-step explanation:

edge 2020

Answer:

answer is 69 degree

Step-by-step explanation:

a+33+78=180 degree

a+111=180

a=180-111

a=69

Step-by-step explanation:

The line that forms the hypotenuse includes line AB.

Gradient of line AB = Rise/Run = (5-2)/(0-4) = -3/4.

y = -3/4 * (x) + c

When x = 0, y = 5. Hence c is 5.

The equation is y = 5 - (3x/4).

Answer:

C

Step-by-step explanation:

Here, we want to select the correct statement that best defines if the given points are a function

We have this answer as;

The ordered pairs do not represent a function because one input value has two different output values

What they are trying to say here is that for us to have a function, no x-value should have 2 y-values although a y-value can have 2 x-values

But according to the points given, a certain x-value has 2 y-values which does not make the relation correct as a function

By solving some linear equations we can see that:

The first missing number is 5.

The second missing number is 9

Here we have a decomposition of the number 360, this means that if we define x as the missing number, then we must have that:

2*x*2*2*3*3 = 360

So we just need to solve this linear equation.

x*72 = 360

x = 360/72 = 5

x = 5

The missing number in the tree is 5.

Similarly, for the second tree if the missing number is y, we should have:

2*5*4*y = 360

40*y = 360

y = 360/40 = 9

The missing number is 9.

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Answer: 24 dogs

Step-by-step explanation:

24 lb                     16 lb

--------         =      -------------

36 dogs                x dogs

24x = 576

x = 24

Answer:

5,184 cubic inches

Step-by-step explanation:

Answer:

Closer to 30.

Step-by-step explanation:

To answer this first find 40% of 90.

90*0.4=36

0.4 is the same as 40%

Hope this helps!

If not, I am sorry.

The measure of angles becomes:

∠a = 30°

∠b = 60°

∠c = 105°

Three vertices make up a triangle, a three-sided polygon. The angles of the triangle are formed by the connection of the three sides end to end at a point. The triangle's three angles add up to 180 degrees in total.

∠a and 30° are vertical angles and vertical angles are equal

∠a = 30°

We have a triangle with a, b and a right angle. Triangles have angles that add to 180°.

∠a + ∠b + 90° = 180°

30° + ∠b + 90° =180°

120° + ∠b = 180

∠b = 180° - 120°

∠b = 60°

Angle c and 70 form a straight line and straight lines are 180 degrees

∠c + 75° = 180°

∠c = 180° - 75°

∠c = 105°

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Step-by-step explanation:

The main diagonal of any cube can be found by multiplying the length of one side by the square root of 3. Where “5 ” is the cube side.

So now

Diagonal AB

= 5 * √3

= 8.7 CM

Hope it will help :)

The length of the diagonal AB to 1 decimal place when the sides of cube  5 cm\(\times\) 5 cm \(\times\) 5 cm is 8.7 cm.

Given that:

The length of sides of cube = 5 cm\(\times\) 5 cm \(\times\) 5 cm

Length of each body diagonal of a cube = √3a, where a is the side of each cube

The length of the cube can be calculated as:

L =\(\sqrt3a\)

Substitute the value of a

L = 5 \(\times\)\(\sqrt3\)

The value of \(\sqrt3\) is 1.732.

L = 5 \(\times\) 1.732

L = 8.66 cm

Thus, the length of the diagonal AB is 8.66 cm.

The length of the diagonal AB to 1 decimal place is 8.7 cm

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The value of the F ratio for testing the significance of this model is not 15.56.

For question 10, in a simple linear regression analysis, SST represents the total sum of squares, which measures the total variation in the dependent variable. SSE represents the sum of squared errors, which measures the variation that is not explained by the regression model.

To determine which statement is true, we need to compare the values of SST and SSE.


Now let's move on to question 14. The standard error of estimate is a measure of the variability of the observed values around the regression line. It is not directly related to the sum of the residual squared.

Therefore, the statement that the sum of the residual squared must be 120 is not necessarily true.

Lastly, for question 15, the F ratio is used to test the overall significance of a multiple regression model. It compares the explained variation (SST - SSE) with the unexplained variation (SSE) and takes into account the number of observations and number of explanatory variables.

Given that SST is 900 and SSE is 460, we can calculate the F ratio as follows:

F = ((SST - SSE) / number of explanatory variables) / (SSE / (number of observations - number of explanatory variables))

F = ((900 - 460) / 5) / (460 / (35 - 5))

F = 440 / 460

F ≈ 0.9565

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Based on the calculations we have rejected the null hypothesis .

Given,

Standard deviation = $ 45

Random sample = 20

Now,

Part 1

Set the null hypothesis and alternative hypothesis,

\(H_{0} : u = 0\\ H_{0} : u > 606.40\)

Part 2

The value of z critical signifies 5% level of significance .

\(Z_{0.05} = 1.65\)

According to critical value if z after calculation is greater than or equal to 1.65 we reject the null hypothesis .

Part 3

The value of Z can be calculated by the formula,

Z = X - µ/σ/√n

Substitute the values ,

Z = 628.85 - 606.40/45/√20

Z = 1.93

Part 4

From the above calculation the value of Z is greater than the critical value .

Thus we reject the null hypothesis .

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Answer:

1/8

Step-by-step explanation:

since there are 8 numbers from 4 to 12, there is only one 8 from 4 to 12 so probability will be 1 out of 8 which is 1/8

3230 Kilograms of the soil supplement are required for the entire Vineyard.

Some units that need to be recalled are as follows:

1 km = 1000 m

1 km^2 = 1000000 m^2

1 km^2 = 247 acres

1 kg = 1000 g

Let's tackle the problem now:

A vineyard has 145 acres of Chardonnay grapes.

145 acres = \(\frac{145}{247}\)× 1 km^2

145 acres = 145/247 km^2

145 acres ~ 0.587 km^2

A particular soil supplement requires 5.50 grams for every square meter of vineyard

1m^2 → 5.50 gram

1 km^2 = 10^6 →5.50 x 10^6 gram

1 km^2 →5.50 x 10^6 x 10^-3 kg

1 km^2 →5.50 x 10^3 kg

145 acres = 145/247 km^2 →145/247 x 5.50 x 10^3 kg

145 acres → 797500/247 kg

145 acres → 3230 kg

It required 797500/247 kg ~ 3230 kg of the soil supplement for the entire Vineyard.

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Answer:

(1/5 mi) / (1/15 hr) = 1/5 * 15/1 = 3 mi/hr

hope this helps

Step-by-step explanation:

Answer: C

Step-by-step explanation:

I believe its C since C= 7 (least) B =8 (med)  A= 9(highest ) please test it out it might be correct..

Answer:

He needs 16 boxes.

Step-by-step explanation:

1600 / 100 = 16

Answer:

He needs 16 boxes.

Step-by-step explanation:

They are boxes of 100. so you need to divide 1600 by 100.

1600÷100= 16.

so he needs 16 boxes of nails.

The value of n/p is 8.

What is quadratic equation?

A quadratic equation in algebra is any equation that can be written in standard form as where x is an unknown and where a, b, and c denote known numbers, where a ≠ 0.

Let, for x^2 + mx + n = 0

⇒ x = 2α or 2β

From the given condition,

for x^2 + mx + n = 0 ⇒ x = α or x = β

Then,

2(α + β) = -m           ..(1)

4αβ = n                    ..(2)

and α + β = -p         ..(3)

αβ = m                     ..(4)

From equation (1) and (3),

-m/2 = -p

⇒ p = m/2

and from equation (2) and (4),

n/4 = m

⇒ n = 4m

Therefore,

n/p = 4m / (m/2) = 4 x 2 = 8

Hence, n/p = 8.

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Answer:

Part A is 11 I think

Step-by-step explanation:

Answer:thank you

Step-by-step explanation:

The statement many quantitative models of decision making are based on comparing a single measure of effectiveness, generally some form of utility to the decision maker is true. So, the correct optio is option a. true.

Many quantitative models of decision theory, such as Expected Utility Theory and also                                             Multi-Attribute Utility Theory, involve comparing a single measure of effectiveness, typically some form of utility, to the decision maker. This allows for the evaluation and comparison of different options based on their expected outcomes and potential risks.

It helps the decision maker determine the best course of action.

Decision theory is a branch of probability. It is concerned with analytic philosophy. It deals with the decision making processes based on probabilities depending on the various factors and the numerical consequences of the outcome.

Therefore, the statement about the decision theory based on comparing a single measure of effectiveness is true.

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Answer:

Volume of the cylinder = 250π inch²

Step-by-step explanation:

Surface area of the cylinder is given by,

Surface area = 4πr²

Here, r = radius of the sphere

Since, surface area = 100π square inches

100π = 4πr²

r² = 25

r = 5

From the picture attached,

Height of the cylinder = diameter of the sphere

                                    = 2(r)

                                    = 2(5)

                                    = 10 inches

Volume of the cylinder is given by,

Volume = πr²h

Here, r = radius of the cylinder

h = height of the cylinder

Therefore, Volume of the cylinder = π(5)²(10)

                                                          = 250π square inches

Answer:

A, B, and C

Step-by-step explanation:

6*(2+8)=60

6*(8+2)=60

6*2+6*8=60

(6*2)+8=20