What is the answer to -3n+8=4

The simplified value of the expression −5 5/8 ÷ 5 is −1 1/8

Expressions are mathematical statements that are represented by variables, coefficients and operators

The expression is given as

−5 5/8 ÷ 5

Convert the mixed fractions to improper fractions

So, we have

−5 5/8 ÷ 5 = −45/8 ÷ 5

Express the quotient as a product

So, we have

−5 5/8 ÷ 5 = −45/8 x 1/5

Evaluate the product of the numerators in the above expression

So, we have

−5 5/8 ÷ 5 = −45/8 x 1/5

Evaluate the product of the denominators in the above expression

So, we have

−5 5/8 ÷ 5 = −45/40

Simplify the result

So, we have

−5 5/8 ÷ 5 = −9/8

Express as a mixed number

So, we have

−5 5/8 ÷ 5 = −1 1/8

Hence, the simplified value of the expression −5 5/8 ÷ 5 is −1 1/8

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Answer:

What is 12.5 percent of 350? = 43.75.

Answer:

The correct value for n is 2800.

Step-by-step explanation:

We need to find the value of n.  According to the given information, 12.5% of n is 350.  Here the percentagle 12.5% must be converted to the equivalent 0.125.  

Then the equation to be solved is 0.125n = 350, so that

       350

n = --------- = 2800

      0.125

The correct value for n is 2800.

Answer:

the first one

Step-by-step explanation:

Ill take that brainliest now 0_o

Answer:

It is the third one

Step-by-step explanation: All the sides are congruent.

For a standard normal distribution, a negative value of z indicates that the observed value is below the mean of the distribution.

In a standard normal distribution, which has a mean of 0 and a standard deviation of 1, a negative value of z indicates that the observed value is located below the mean. The z-score represents the number of standard deviations a data point is away from the mean.

A negative z-score means that the observed value is lower than the mean, indicating that it falls to the left of the center of the distribution. This means that the data point is relatively lower compared to the average and can provide information about its position within the distribution and its deviation from the mean.

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Step-by-step explanation:

I don't see any answer options.

110 teachers, 1320 students.

the ratio is therefore

110/1320 = 11/132 = 1/12

so, there is 1 teacher for every 12 students.

Answer:

Terms: 7, 5c, 2k, 15

Variables: C, K

Co efficients: 5, 2

Constants: 7, 15

The flexible air-filled container has volume of -33 liter (A) at 20 meter in sea water.

At the surface, the pressure is 1 atm (atmosphere). As we go deeper into the sea, the pressure increases by 1 atm for every 10 meters. Therefore, at 20 meters, the pressure is 3 atm (1 atm at the surface + 2 atm for the 20 meters).

The relationship between pressure and volume is described by Boyle's Law, which states that the pressure and volume of a gas are inversely proportional at a constant temperature. This means that as the pressure increases, the volume decreases, and vice versa.

Using Boyle's Law, we can calculate the volume at 20 meters:

P1V1 = P2V2

Where P1 is the initial pressure, V1 is the initial volume, P2 is the final pressure, and V2 is the final volume.

Plugging in the values:

(1 atm)(100 liter) = (3 atm)(V2)

Solving for V2:

V2 = (1 atm)(100 liter) / (3 atm)

V2 = 33.33 liter

Rounding off to the nearest whole number, the volume at 20 meters is 33 liter.

Therefore, the correct answer is A - 33 liter.

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The algebraic expression is equivalent to the expression below is 36x+110

According to the Distributive Law, multiplying a number by a collection of numbers is equivalent to performing each multiplication independently.

For instance, given the standard expression C(D + E). Using the distributive law;

C(D + E) = CD + DE

Using this rule to the given expression shown below;

11(4x + 10) - 8x

Apply the distributive property;

11(4x + 10) - 8x

11(4x) + 11(10) - 8x

44x + 110 - 8x

Collect the like terms

44x + 110 - 8x

44x-8x+110

36x+110

This gives the resulting equation of the linear function after expansion

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Answer:

0

Step-by-step explanation:

So we have the equation:

\(3(x+14)=42\)

Divide both sides by 3:

\(x+14=14\)

Subtract 14:

\(x=0\)

The value of x is 0

Answer: x=0

Step-by-step explanation:

Given

3(x+14)=42

Distributive property

3x+42=42

Subtract 42 from both sides

3x=0

Divide 3 on both sides

x=0

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

Given

3(x+14)=42

Divide 3 on both sides

x+14=14

Subtract 14 on both sides

x=0

Both ways are fine

Hope this helps!! :)

Answers:

Part 1

16. Nominal

17. Nominal

18. Nominal

19. Nominal

20. Nominal

21. Continuous

22. Continuous

23. Continuous

24. Continuous

25. Continuous

Part 2

26. Discrete

27. Continuous

28. Discrete

29. Discrete

30. Ordinal

31. Ordinal

32. Nominal

33. Ordinal

34. Ordinal

35. Nominal

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

Explanation:

A nominal variable is one where usually a name is attached to it, instead of a number. Something like "mood" is nominal because it takes on the options of "happy", "sad", "angry", etc which are all non-numeric names. We can't do math on them. The same goes for colors, blood type, dog breed, nationality, and month names.

An ordinal variable is one where we can rank the names but we can't exactly do math on them. An example of this would be pain severity (from "no pain" to "in extreme pain") since we can rank and order the pain levels in a natural order. Another example is satisfcation rating, rank in class, and clothing sizes.

A discrete variable is one that takes on finitely many values between two endpoints. Usually (but not always) discrete values are whole numbers. When it comes to counting the number of people or objects, we turn to a discrete variable. With discrete variables, it doesn't make sense to have a midpoint between say 1 and 2 because we cannot have 1.5 of a person.

A continouous variable is one where we can pick any real number in a given interval. Midpoints make sense here now because we can select the midpoint of say 1 and 2 to get 1.5; an example of a continuous variable is someone's height, wind speed, water temperature, or the voltage of electricity.

First, find the product of the numbers:

Now, rewrite the given expression as:

Proved that the given expression is divisible by 3, 7, 13 and 37.

To get the balance to the acceptable debt ratio percentage, you would need to pay approximately $2089.90 at the end of the month.

To calculate the amount you must pay at the end of the month to get the balance to the acceptable debt ratio percentage, we need to determine the acceptable debt ratio percentage and the current balance on the credit card.

Let's assume the acceptable debt ratio percentage is 30%. This means that the balance on the credit card should not exceed 30% of the credit limit.

Credit Limit: $5000

Acceptable Debt Ratio: 30%

The maximum allowable balance can be calculated as follows:

Maximum Allowable Balance = Credit Limit * Acceptable Debt Ratio

Maximum Allowable Balance = $5000 * 0.30

Maximum Allowable Balance = $1500

To find the amount you must pay at the end of the month, subtract the maximum allowable balance from the current balance:

Amount to Pay = Current Balance - Maximum Allowable Balance

Amount to Pay = $3589.90 - $1500

Amount to Pay = $2089.90

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The vector equation that is equivalent to the given system of equations is:

[x1, x2, x3] = [-59/112, -3/28, 29/112]t + [-1/16, -5/56, 11/112]u + [-31/112, 11/28, -3/112]v,

where t, u, and v are any real numbers.

The system of equations:

4x1 + x2 + 3x3 = 9

x1 - 7x2 - 2x3 = 28

x1 + 6x2 - 5x3 = 15

can be written in matrix form as AX = B, where:

A =  [4   1   3]

[1  -7  -2]

[1   6  -5]

X = [x1]

[x2]

[x3]

B = [9]

[28]

[15]

To convert this into a vector equation, we can write:

X = A^(-1)B,

where A^(-1) is the inverse of the matrix A. We can find the inverse by using row reduction or an inverse calculator. After performing the necessary calculations, we get:

A^(-1) = [-59/112  -3/28   29/112]

[-1/16   -5/56   11/112]

[-31/112  11/28  -3/112]

So the vector equation that is equivalent to the given system of equations is:

[x1, x2, x3] = [-59/112, -3/28, 29/112]t + [-1/16, -5/56, 11/112]u + [-31/112, 11/28, -3/112]v,

where t, u, and v are any real numbers.

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The optimal level of production is 3 units. Profit function is P(x) = -2x² + 24x + 7500. The profit at the optimal level is rounded off to $7488.

The complete question :

Cost, revenue, and profit are in dollars and x as the number of units.

A firm knows that its marginal cost for a product is MC = 2x+25, that its marginal revenue is MR = 49-6x, and that the cost of production of 60 units is$5,260.

(a) Find the optimal level of production.

(b) Find the profit function.

(c) Find the profit or loss at the optimal level.

(a) Optimal level of production

We know that Profit is given as :P(x) = R(x) - C(x), where R(x) is the Revenue function, C(x) is the Cost function.

We are given marginal cost and marginal revenue. We know that the marginal cost is the first derivative of the cost function, so we can obtain the cost function by integrating the marginal cost. Similarly, the marginal revenue tis the first derivative of the revenue function, so we can obtain the revenue function by integrating the marginal revenue. Then we can obtain the profit function by subtracting the cost function from the revenue function.

Let's find the cost function.

C(x) = ∫MC dxC(x) = ∫(2x + 25) dxC(x) = x² + 25x + CC(x) = C(60) - 5260 (substituting x=60, given the cost of production of 60 units is $5260)

C(x) = 60² + 25*60 - 5260C(x) = 360 (we get the value of C)

C(x) = x² + 25x + 360

Therefore the cost function is C(x) = x² + 25x + 360

Let's find the revenue function.

R(x) = ∫MR dxR(x) = ∫(49 - 6x) dxR(x) = 49x - 3x² + KR(60) = 0 (Given that the revenue of 60 units is zero)

0 = 49*60 - 3*60² + K0 = 2940 - 10800 + KK = 7860

Therefore the revenue function is R(x) = 49x - 3x² + 7860

Let's find the profit function.

P(x) = R(x) - C(x)P(x) = (49x - 3x² + 7860) - (x² + 25x + 360)P(x) = -2x² + 24x + 7500P(x) = -2(x² - 12x - 3750)P(x) = -2(x - 6)² + 7512

At the optimal level of production, the profit will be maximum, and the derivative of the profit will be zero.

dP/dx = -4x + 24 = 0x = 6

Therefore, the optimal level of production is 6÷2=3 units.

But we need to confirm if this is a maximum or a minimum. We need to find the second derivative of the profit at x=3.

d²P/dx² = -4 < 0

Therefore, at x = 3, the function P(x) has a maximum value, hence the optimal level of production is 3 units.

(b) The profit function is P(x) = -2x² + 24x + 7500

(c) The profit at the optimal level is: P(3) = -2(3²) + 24(3) + 7500P(3) = -18 + 72 + 7500P(3) = $7488

Therefore, the profit at the optimal level is $7488, which is rounded off to $7488.

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you will be on floor no. -8 and your friend will be in floor no. 5 if you and your friend started at floor no. 0

YOU CAN ALSO VISUALISE THIS WAY

Answer:

on the left: y = -4x - 2 and y = 1/3x - 2

on the right: 3s + 1c = 3 and 3s + 2c = 52

Answer:

80 × 30 = 2,400

Step-by-step explanation:

We can easily round 79 up to 80 and round 31 down to 30. This would make our expression 80 × 30, which is much easier to compute. We just take 8 × 3 (which is 24) and add two zeros onto the end of the number. This yields us an answer of 2,400 which is very close to the actual multiplication of 79 × 31 which is 2,449 (only 49 more than our estimation).

A line segment is also a line but a line with finite length and fixed endpoints. The given statement "Lines p and q intersect in points M and N" can never be true.

A line is a one-dimensional shape that is straight, has no thickness, and extends in both directions indefinitely.

A line segment is also a line but a line with finite length and fixed endpoints.

The given statement "Lines p and q intersect in points M and N" will never be true, this is because two straight lines can only bisect once, therefore, at only a single point.

Although, the line may also bisect each other at infinite points but only if the line overlap with one another.

Since it is given that bisect each other at two points M and N.

Hence, The given statement "Lines p and q intersect in points M and N" can never be true.

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Answer:

-2+i

Step-by-step explanation:

-7+4i represents (-7,4) and 3-2i represents (3,-2).

So, the midpoint is (-2,1), which represents -2+i.

Henry opens a savings account with an annual interest rate of 4.5 percent. After a year, he gets $75,000 in payment. He made a deposit into the savings account of $72,831.68.

Here are the steps on how to calculate the amount Henry invested:

Convert the annual interest rate to a monthly rate.

\(\begin{equation}4.5\% \div 12 = 0.375\%\end{equation}\)

Calculate the number of years.

\(\begin{equation}\frac{18 \text{ months}}{12 \text{ months/year}} = 1.5 \text{ years}\end{equation}\)

Use the compound interest formula to calculate the amount Henry invested.

\(\begin{equation}FV = PV * (1 + r)^t\end{equation}\)

where:

FV is the future value ($75,000)

PV is the present value (unknown)

r is the interest rate (0.375%)

t is the number of years (1.5 years)

\(\begin{equation}\$75,000 = PV \cdot (1 + 0.00375)^{1.5}\end{equation}\)

\$75,000 = PV * 1.0297

\(\begin{equation}PV = \frac{\$75,000}{1.0297}\end{equation}\)

PV = \$72,831.68

Therefore, Henry invested \$72,831.68 in the savings account.

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Answer:

  (a) 56

Step-by-step explanation:

You want the number that is 80% of 70.

In this context, "of" means "times." Thus "80% of 70" is "80% times 70".

Some calculators have a % key that lets you calculate this directly. Otherwise you may need to convert the percentage to a fraction.

The % symbol is effectively interchangeable with "/100", so we have ...

  80% of 70 = 80/100 × 70

At this point, you can employ what you know about multiplication and division to simplify this to a problem you can do in your head.

  = (80×70)/100 = (8×7×100)/100 = 8×7 = 56

If you want a grade of 80%, you need to get 56 questions correct.

Answer:

The perimeter of a scalene triangle is equal to the sum of the length of sides of a triangle and it is given as, Perimeter = a + b + c units where a, b, and c are the lengths of the sides.

Step-by-step explanation:

here’s an example

After adding (-7) to each value in the given data set, the mean is 38.25, the median is 38, the mode does not exist, the range is 24, and the standard deviation is approximately 8.85.

To find the mean of the data set, add all the values together (49, 30, 34, 43, 31, 37, 25, 47) and divide the sum by the total number of values (8). The mean is the average value of the data set.

To determine the median, arrange the values in ascending order (25, 30, 31, 34, 37, 43, 47, 49) and find the middle value. In this case, the median is the average of the two middle values (34 and 37).

The mode refers to the value(s) that appear most frequently in the data set. In this case, there is no mode since no value appears more than once.

The range is calculated by subtracting the smallest value (25) from the largest value (49). Thus, the range is 24.

To calculate the standard deviation, subtract the mean from each value, square the differences, calculate the mean of those squared differences, and finally take the square root of the resulting value. This provides a measure of the dispersion or spread of the data around the mean.

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The company's profit function, P(h), is given by P(h) = -0.002h^2 + 65h - 2200.

The profit function, P(h), can be calculated by subtracting the total cost function, C(h), from the revenue function, R(h).

Profit (P) = Revenue (R) - Total Cost (C)

Given:

R(h) = 140h

C(h) = -0.002h^2 + 75h + 2200

Substituting these values into the profit formula:

P(h) = R(h) - C(h)

= 140h - (-0.002h^2 + 75h + 2200)

= 140h + 0.002h^2 - 75h - 2200

Simplifying further:

P(h) = -0.002h^2 + 140h - 75h - 2200

= -0.002h^2 + 65h - 2200

Therefore, profit function obtained is -0.002h^2 + 65h - 2200.

The profit function P(h) allows the company to assess its financial performance and make informed decisions regarding pricing, production levels, and resource allocation.

By understanding the relationship between the number of headphones sold, production costs, and revenue, the company can determine the level of output that yields the highest profit.

This information is crucial for effective business planning, maximizing profitability, and ensuring the company's long-term success in the highly competitive headphone market.

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A. The y-intercept is at the point (0, 0).

B.  The zeros are x = 0 or x = ±√5

C.

A) The y-intercept of this graph is the point where x = 0.

When  x = 0, the value of y

= 0^4 - 5*0^2

= 0.

Therefore, the y-intercept is at the point (0, 0).

B) The x-intercepts/roots of the function are the values of x that make y = 0.

To find these values, we need to set y = 0 and solve for x:

x⁴ - 5x² = 0

x⁴ = 5x²

x² = x⁴/5

x = ±√(x⁴/5)

We can simplify this expression by factoring x² out of both sides:

x²(x² - 5) = 0

x² = 0 or x² - 5 = 0

x = 0 or x = ±√5

hence the x-intercepts are at x = 0 and x = ±√5.

C) The end behavior of this function refers to how the graph of the function approaches the x-axis as x approaches positive infinity and negative infinity.

x → ∞ f(x) → ∞

x → -∞ f(x) → -∞

D) The graph is attached

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Answer:

she makes $6.676 an hour

Step-by-step explanation:

402.17-93.26-41.86=267.05/40=6.67625

I would say (1.7, 2.5) would be best for R (im pretty sure its where the blank is at lol)

btw I like your pfp :D

The product of lower triangular matrices is lower triangular, and the product of upper triangular matrices is upper triangular. if a lower triangular matrix, upper triangular is invertible, then their inverse is lower triangular, upper triangular.

Let's consider the product of two lower triangular matrices. A lower triangular matrix has all its entries above the main diagonal equal to zero. When we multiply two lower triangular matrices, the entries in the resulting matrix will be the sum of products of corresponding elements from the original matrices. Since the original matrices have zeros above the main diagonal, the resulting matrix will also have zeros above the main diagonal, making it lower triangular.

Similarly, when we multiply two upper triangular matrices, the resulting matrix will have zeros below the main diagonal, maintaining the upper triangular form.

Now, let's consider the invertibility of lower and upper triangular matrices. If a lower triangular matrix is invertible, its inverse will be obtained by taking the inverse of each diagonal element. Since the inverse of a nonzero number is still nonzero, the inverse matrix will also have zeros above the main diagonal, preserving the lower triangular form. The same reasoning applies to upper triangular matrices, where the inverse will be upper triangular.

Therefore, the product of lower triangular matrices is lower triangular, and the product of upper triangular matrices is upper triangular. Additionally, the inverse of a lower (resp. upper) triangular matrix is lower (resp. upper) triangular if the matrix is invertible.

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Answer:

4030 or 3040 I think 4030 though

Step-by-step explanation:

I think this is it but 6*8 is 48....I used a little logic so hopefully this is right

Answer:

4030

Step-by-step explanation:

if 9× 7 = 3545 then it 7 × 5, 9× 5 which gives 3545

4x3 = 3× 5, 4×5 which gives 1520

so 6× 8 will give 8×5, 6×5 = 4030