the cost of a radio is Rs 6650 . what is the cost of such 21 radios?​

Answer:

It was difficult reading the question, as written.  Check my assumptions.

Step-by-step explanation:

"five more than the product of two and a number,

decreased by seven"

---

Let the "number" be a.

We are told "five more than . ." means +5,

"the product of two and a number" means 2a,

"decreased by seven" mean -7

Put the statements together to obtain:

+5+2a-7

Simplify to 2a-2

Evaluate when a = 8:

2a-2

2(8)-2

16-2

= 14

Answer:

Consistent

Step-by-step explanation:

Answer:

Option (C)

Step-by-step explanation:

Given question is incomplete; here is the complete question.

Consider the expression \(0.8^{x-3}\) . Which of the following is an equivalent expression?

A- \(0.8^{\frac{x}{3}}\)

B- \(0.8^{\frac{3}{x}}\)

C- \(\frac{0.8^{x}}{0.8^3}\)

D- \(\frac{0.8^{3}}{0.8^{x}}\)

Given expression is \(0.8^{x-3}\)

\(0.8^{x-3}=0.8^{x}\times 0.8^{-3}\) [Since \(x^{b+c}=x^{b}\times x^{c}\)]

          \(=\frac{0.8x^{x}}{0.8^{3} }\) [Since \(a\times b^{-1}=\frac{a}{b}\)]

Therefore, Option C will be the equivalent expression.

Answer:

Consider the expression 0.8X-3.  Which of the following is an equivalent expression?

A.

B.

C.  <<<<correct

D.

Step-by-step explanation:

eDGE 2021

Answer

Step-by-step explanation:

When 9 2/3 is written simplest radical form,the value remain under radical is number 3.

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

Work Shown:

\(9^{2/3}\\\\\left(9^{2}\right)^{1/3}\\\\\left(81\right)^{1/3}\\\\\left(27*3\right)^{1/3}\\\\\left(27\right)^{1/3}*\left(3\right)^{1/3}\\\\\left(3^{3}\right)^{1/3}*\left(3\right)^{1/3}\\\\3^{3*(1/3)}*\left(3\right)^{1/3}\\\\3^{1}*\left(3\right)^{1/3}\\\\3*\left(3\right)^{1/3}\\\\3\sqrt[3]{3}\\\\\)

Interestingly, everything is a 3, though this won't happen every time with these types of problems.

Answer:

4.42 inches^3

Step-by-step explanation:

V=πr^2h/3

π x 0.75^2 x 7.5/3 ≈4.41786 -> 4.42

Jesse will pay $2,975 in income tax and Jesse will have $72,025 after paying his income tax if the local income tax rate is 8. 5%.

Amount earned = $75000

Income tax rate = 8. 5%

Income = $40,000

A. To calculate the income tax, Jesse, we need to estimate the taxable income of Jesse.

Taxable income = $75,000 - $40,000

Taxable income = $35,000

Income tax = $35,000 x 0.085

Income tax = $2,975

Therefore, we can conclude that Jesse will pay $2,975 in income tax.

B. To find out the remaining amount Jesse has after paying income tax,

Remaining amount = $75,000 - $2,975

Remaining amount  = $72,025

Therefore, we can conclude that Jesse will have $72,025 after paying his income tax.

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Answer:

the answer should be 38.75

The function which represents a quadratic function is f(x) = three-quarters x^2 + 2x - 5 as it has a degree of 2 which is highest exponent.  The correct answer is A).

The quadratic function is f(x) = three-quarters x^2 + 2x - 5.

We can identify a quadratic function by its degree, which is 2. The degree of a polynomial is the highest exponent in the expression.

In the given options, f(x) = three-quarters x^2 + 2x - 5 has a degree of 2, with the x^2 term being the highest exponent. The other options have either a degree of 3 (f(x) = -8x^3 - 16x^2 - 4x) or 0 (f(x) = 0x^2 - 9x + 7), or are not even functions (f(x) = 4/x^2 - 2/x + 1). so, the correct option is A).

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Answer:

b

Step-by-step explanation:

Answer:

ok

Step-by-step explanation

part b

Answer:

(1.5×5) + (2.5×4)

Step-by-step explanation:

if 1.5 + 2.5 is 4.0, and you have $18 and you would see how many times 4 can go into 18 (18÷4) which has four times then you have $2 left so you can get another lip balm so x equals 5 and Y equals 4. I hope this helps! :D

Answer:

On a coordinate plane, a trapezoid has points (0, 0), (0.5, 2), (1, 2), (1.5, 0). Step-by-step explanation: If a trapezoid is dilated with a scale factor between 0 and 1, the resulting trapezoid will look smaller than the original trapezoid.

Step-by-step explanation:

Answer:

Rate positively and give brainlist

The limiting reagent in a chemical reaction is a reactant that is totally consumed when the chemical reaction is completed. The amount of product formed is limited by this reagent, since the reaction cannot continue without it.

why is excess reagent used:

A good way to ensure that one reactant fully reacts is to use an excess of the other reactant. This is financially efficient when one of the reactants is very cheap. When one reactant is in excess, there will always be some left over.

how do you find the excess reagent:

The reactant that produces a lesser amount of product is the limiting reagent. The reactant that produces a larger amount of product is the excess reagent. To find the amount of remaining excess reactant, subtract the mass of excess reagent consumed from the total mass of excess reagent given

Answer:

the answer is -7

Step-by-step explanation:

Answer:

x = 1/4, 3/4

Step-by-step explanation:

From \(\displaystyle{x+x^2+\dots + x^n + \dots}\) can be rewritten as:

\(\displaystyle{\dfrac{x}{1-x}}\)

through the infinite geometric series formula for |x| < 1 which is:

\(\displaystyle{S = \dfrac{a_1}{1-r}}\)

In the series, \(\displaystyle{a_1}\) is our first term which is x and r is common ratio which is also x (by dividing next term by previous term. Hence, x²/x = x). Thus, we have the following rewritten equation:

\(\displaystyle{-1+\dfrac{1}{x}+\dfrac{x}{1-x} = \dfrac{10}{3}}\)

Solve the equation for x:

\(\displaystyle{-1 \cdot 3x(1-x)+\dfrac{1}{x} \cdot 3x(1-x)+\dfrac{x}{1-x}\cdot 3x(1-x) = \dfrac{10}{3} \cdot 3x(1-x)}\\\\\displaystyle{-3x(1-x)+3(1-x)+3x^2=10x(1-x)}\\\\\displaystyle{-3x+3x^2+3-3x+3x^2=10x-10x^2}\\\\\displaystyle{3x^2+3x^2+10x^2-3x-3x-10x+3=0}\\\\\displaystyle{16x^2-16x+3=0}\\\\\displaystyle{\left(4x-1\right)\left(4x-3\right)=0}\\\\\displaystyle{x=\dfrac{1}{4}, \dfrac{3}{4}}\)

Both solutions work since 1/4 and 3/4 are less than 1.

The z-scores will remain the same regardless of whether you use inches or centimetres for the height measurements.

The z-scores will not change if you convert the height measurements from inches to centimetres or vice versa. The z-score is a standard score representing the number of standard deviations, a value above or below the mean of a normal distribution.

The z-score is calculated using the formula z = (x - mean)/standard deviation, where x is the value being compared to the mean and standard deviation of the distribution.

Converting the height from inches to centimetres or vice versa will only change the units of measurement, but the relative position of a value within the distribution will remain unchanged.

Therefore, the z-scores will remain the same regardless of whether you use inches or centimetres for the height measurements.

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B. No, because the Central Limit Theorem states that the sampling distribution of x is approximately normally distributed only if the sample size is large enough.

The Central Limit Theorem (CLT) is a fundamental concept in statistics that states that as the sample size increases, the sampling distribution of the sample means will approach a normal distribution. However, this is only true if certain conditions are met, one of which is having a large enough sample size.
The CLT states that the sampling distribution of x will be approximately normally distributed if the sample size is large enough (usually greater than 30). If the sample size is small, the sampling distribution may not be normally distributed. In such cases, other statistical techniques like the t-distribution should be used.
Furthermore, the CLT assumes that the population being sampled is not necessarily normally distributed, but it does require that the population has a finite variance. This means that even if the population is not normally distributed, the sampling distribution of x will still be approximately normal if the sample size is large enough.
In conclusion, the answer is B, as the Central Limit Theorem states that the sampling distribution of x is approximately normally distributed only if the sample size is large enough.

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Answer

B. 500 pi

Step-by-step explanation:

Answer:

one ticket is $1.20

Step-by-step explanation:

6 / 5 = 1.2, then check it by multiplying 1.2 x 5. Its easier than you think. Im positive im correct. All you have to do is one but if u want to make sure you can do all of them

Answer:

$1.20

Step-by-step explanation:

If you divide the price of a ticket bundle by the amount of tickets, you get the individual ticket price.

5 tickets for $6.

6/5 = 1.2

10 tickets for $12.

12/10 = 1.2

15 tickets for $18

18/15 = 1.2

Answer:

360 in

Step-by-step explanation:

To figure out how many inches the dressmaker has in 10, 3 ft rolls, we can multiply by the conversion ratio:

\(\dfrac{12 \text{ in}}{1\text{ ft}} \\ \\ \text{} \ \ \implies (10 \cdot 3 \text{ ft}) \cdot \dfrac{12 \text{ in}}{1\text{ ft}} \\ \\ \text{} \ \ \implies 30 \text{ ft} \cdot \dfrac{12 \text{ in}}{1\text{ ft}} \\ \\ \text{} \ \ \implies 30\cdot 12 \text{ in} \\ \\ \text{} \ \ \implies \boxed{360 \text{ in}}\)

So, the dressmaker has 360 in of ribbon.

Answer:  the value of f′′′(4) is 3/256.

Step-by-step explanation:

Given the third-degree Taylor polynomial:

f(x) = (x−4)³/512 − (x−4)²/64 + (x−4)⁴/2

To find the value of f′′′(4), we need to differentiate the polynomial three times and evaluate it at x = 4.

First derivative:

f'(x) = 3(x−4)²/512 − 2(x−4)/64 + 4(x−4)³/2

Second derivative:

f''(x) = 6(x−4)/512 − 2/64 + 12(x−4)²/2

Third derivative:

f'''(x) = 6/512 + 24(x−4)/2

Now, substitute x = 4 into f'''(x):

f'''(4) = 6/512 + 24(4−4)/2

= 6/512 + 0

= 6/512

= 3/256

Therefore, the value of f′′′(4) is 3/256.

Answer:

b 321 and 322

Step-by-step explanation:

because 321.5 is between 321 and 322

It would take a total of, 3,461,934 drops of rain to fill a 50-gallon rain barrel.

To determine how many drops of rain it would take to fill a 50-gallon rain barrel, we need to first convert the volume of the rain barrel to milliliters. One gallon is equal to approximately 3785 milliliters, so a 50-gallon rain barrel is,

3785 * 50 = 189,250 milliliters.

If it takes 202020 drops of rain to make 111 milliliters, then it would take approximately 189,250 / 111 = 1,697 sets of 202020 drops to fill a 50-gallon rain barrel.

Thus, it would take a total of 1,697 x 202020 = 3,461,934 drops of rain to fill a 50-gallon rain barrel.

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Answer:

The answer is 23/5, or 23 over 5.

Step-by-step explanation:

4 and 3/5

Multiply the denominator by the whole number and add the numerator, all over the original denominator to calculate the improper fraction.

20 + 3 over 5

The general solution of the differential equation y''(x) + y(x) = sec(x) tan(x) is y(x) = c₁cos(x) + c₂sin(x) + (-ln|sec(x) + tan(x)| + C₁)cos(x) + (-ln|sec(x) + tan(x)| + C₂)sin(x); here c₁ and c₂ are constants.

To solve the differential equation y''(x) + y(x) = sec(x) tan(x) using variation of parameters, we first need to find the solutions to the homogeneous equation y''(x) + y(x) = 0.

The auxiliary equation for the homogeneous equation is r² + 1 = 0, which has complex roots r = ±i.

The corresponding solutions to the homogeneous equation are y₁(x) = cos(x) and y₂(x) = sin(x).

Next, we need to find the particular solution using the method of variation of parameters. Let's assume the particular solution has the form y_p(x) = u(x)cos(x) + v(x)sin(x).

Now, we need to find u(x) and v(x) by substituting this form into the original differential equation and solving for u'(x) and v'(x).

Differentiating y_p(x), we get y_p'(x) = u'(x)cos(x) - u(x)sin(x) + v'(x)sin(x) + v(x)cos(x).

Taking the second derivative, y_p''(x) = -u(x)cos(x) - u'(x)sin(x) + v(x)sin(x) + v'(x)cos(x).

Substituting these derivatives into the original differential equation, we have:

(-u(x)cos(x) - u'(x)sin(x) + v(x)sin(x) + v'(x)cos(x)) + (u(x)cos(x) + v(x)sin(x)) = sec(x)tan(x).

Simplifying, we get:

u'(x)sin(x) + v'(x)cos(x) = sec(x)tan(x).

To find u'(x) and v'(x), we solve the following system of equations:

u'(x)sin(x) + v'(x)cos(x) = sec(x)tan(x),

u(x)cos(x) + v(x)sin(x) = 0.

We can solve this system using various methods such as substitution or elimination.

Solving the system, we find:

u'(x) = sin(x)sec(x),

v'(x) = -cos(x)sec(x).

Integrating these expressions, we obtain:

u(x) = -ln|sec(x) + tan(x)| + C₁,

v(x) = -ln|sec(x) + tan(x)| + C₂.

Finally, the particular solution is given by:

y_p(x) = (-ln|sec(x) + tan(x)| + C₁)cos(x) + (-ln|sec(x) + tan(x)| + C₂)sin(x).

The general solution to the differential equation is the sum of the homogeneous and particular solutions:

y(x) = c₁cos(x) + c₂sin(x) + (-ln|sec(x) + tan(x)| + C₁)cos(x) + (-ln|sec(x) + tan(x)| + C₂)sin(x).

Here, c₁ and c₂ are constants.

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simple interest = $1092

Total amount = $6292

Principal = $5200

rate = 3% = 0.03

time = 7 years

Applying simple interest formula:

I = 5200 × 0.03 ×7

I = $1092

simple interest = $1092

We are to find total amount after getting the interest:

Amount = principal + interest

Amount = $5200 + $1092

Amount = $6292

Answer:

i think 4 feet tall

Step-by-step explanation:

i think if it is wrong im sorry i tried

Answer:

37.7ft³

Step-by-step explanation:

The given line y = -2x + 3 will cross the y-axis at (0, 3).

A coordinate plane is a two-dimensional plane that consists x-axis and a y-axis. These are perpendicular to each other and will be intersected at the point called the origin.  

The coordinates of the point that lies on the y-axis are (0, y), Similarly, the coordinates of the point that lies on the x-axis are (0, x).    

Here we have

The equation of the line is y = -2x + 3  

To find the required point take x = 0

=> y = -2(0) + 3

=> y = 0 + 3

=> y = 3

Therefore,

The given line y = -2x + 3 will cross the y-axis at (0, 3).

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Answer:

B

Step-by-step explanation:

The diagonals of a rhombus are at right angles to each other, then

∠ 1 = ∠ 2 = ∠ 3 = 90° so

10x = 90 ( divide both sides by 10 )

x = 9

x + y = 90

9 + y = 90 ( subtract 9 from both sides )

y = 81

9z = 90 ( divide both sides by 9 )

z = 10

The system of equations that matches the given graph is:

A. 3x - 6y = 12

9x - 18y = 36

To determine which system of equations matches a given graph, we need to analyze the slope and intercepts of the lines in the graph.

Looking at the options provided:

A. 3x - 6y = 12

9x - 18y = 36

B. 3x + 6y = 12

9x + 18y = 36

Let's analyze the equations in each option:

For option A:

The first equation, 3x - 6y = 12, can be rearranged to slope-intercept form: y = (1/2)x - 2.

The second equation, 9x - 18y = 36, can be simplified to 3x - 6y = 12, which is the same as the first equation.

In option A, both equations represent the same line, as they are equivalent. Therefore, option A does not match the given graph.

For option B:

The first equation, 3x + 6y = 12, can be rearranged to slope-intercept form: y = (-1/2)x + 2.

The second equation, 9x + 18y = 36, can be simplified to 3x + 6y = 12, which is the same as the first equation.

In option B, both equations also represent the same line, as they are equivalent. Therefore, option B does not match the given graph.

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