Given mn, find the value of x.
Answer:
(2x+5)° (8x+5)°
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Step-by-step explanation: WHat grade is this for I might be able to help you.

When the radius of a cylinder is 6 ft. and it is increasing at the rate of 2 feet per minute, its volume will change at rate of 509.14 ft³/minute.

Given a cylinder with:

r = radius

h = height = 3/2 . r

The volume of the cylinder is:

V = πr².h

Substitute h = 3/2 . r,

V = πr².(3/2 r)

V = 3/2 . πr³

Take the derivative with respect to t:

dV/dt = 9/2 . πr²  . dr/dt

Substitute dr/dt = 2 ft./minute and r = 6 ft.,

dV/dt = 9/2 . π.6²  

dV/dt = 9/2 . π.6²  = 509.14 ft³/minute.

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The correct answer to the question would be:

D. The manufacturer tests every 500th smartphone off the production line.

The dimensions of this cuboid are 2 cm, 11 cm, and 17 cm respectively.

Mathematically, the volume of a cuboid can be calculated by using this following formula:

Volume = L × W × H

Where:

Substituting the given parameters into the formula, we have;

Volume = 2 × (x + 3) × (x + 9)

374 = 2 × (x² + 9x + 3x + 27)

374 = 2 × (x² + 12x + 27)

Dividing both sides by 2, we have:

187 = x² + 12x + 27

Rearranging the equation, we have:

x² + 12x + 27 - 187 = 0

x² + 12x - 160 = 0

Next, we would solve the quadratic equation by using the factorization method as follows:

x² + 12x - 160 = 0

x² + 20x - 8x - 160 = 0

x(x + 20) - 8(x + 20) = 0

(x - 8)(x + 20) = 0

x = 8 or x = -20

Since the dimensions cannot be negative, the value of x is equal to 8.

Check:

x² + 12x - 160 = 0

8² + 12(8) - 160 = 0

64 + 96 - 160 = 0

160 - 160 = 0 (True).

For the dimensions, we have:

Width = x + 3 = 8 + 3 = 11 cm.

Height = x + 9 = 8 + 9 = 17 cm.

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Answer:

y=3/5x-7

Step-by-step explanation:

when lines are parallel they have the same slope and the slope of the first line was 3/5

Hello!

Let's consider the equation given:

 ⇒the coefficient before the x is the slope

When lines are parallel:

 ⇒the slopes are equal

Since the line given has a slope of 3/5

 ⇒ the line parallel is [tex]y = \dfrac{3}{5} x - 7[/tex]    <==Answer

Hope that helps!

The interest rate for the loan is 20%.

The interest rate represents the percentage or the proportion of the interest over the total loan.

The interest is the finance charge for the credit extended by the pay lender.

The interest rate, R = Interest x 100/Principal x Time, where the simple interest equals principal x rate x time.

The total amount borrowed = $500

The total finance charge = $100

The period of the loan = 1 year

The interest rate

= $100 x 100/$500 x 1

= 20%

Thus, the pay lender is charging an interest rate of 20% per annum.

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What is the interest rate?

The domain and range of the function f(x) = 3x⁵ is all real numbers, the x-intercept = 0 and y-intercept = 0.

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

The equation for the function is:

f(x) = 3x⁵

The domain of the function: D = all real number

The range of the function: R = all real number

x-intercept = 0

y-intercept = 0

Increasing interval: x ∈ [0, ∞)

Decreaing interval: x ∈ (-∞, 0]

Symmetry = The function is not symmetric

End behavior:

x → ∞, y →∞

x → -∞, y → -∞

Thus, the domain and range of the function f(x) = 3x⁵ is all real numbers, the x-intercept = 0 and y-intercept = 0.

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The value of a machine at the end of t years with a rate of depreciation, r is given by the function:

It is required to find the age of a machine that originally costs $13,500, but is now valued at $10,419 and has a rate of depreciation of 0.12.

To do this, substitute C=13500, V=10419, and r=0.12 into the function:

Solve the resulting equation for t:

Take the Logarithm of both sides:

Hence, the machine is about 2.03 years.

The machine is about 2.03 years.

For a random sample of 130 mortgages with 20 delinquents on their current payment, the mean of the sampling distribution of the proportion of delinquent payments is not possible to say because population proportion is not known.

A random sample refers to a randomly selected subset of the population. In random sampling, each member of the population has an equal chance of selection, reducing the risk of selection bias. Random sampling ensures that the conclusion drawn from the sample should approximate the results obtained if entire population had been measured. The mean of the sampling distribution is the mean of the population from which results were sampled. As the population proportion (fraction of  the population with certain characteristic) is unknown, the mean cannot be determined.

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Answer: 4x+6/x^2

Step-by-step explanation:

Given:

Radius of circular swimming pool = 15ft

Radius of the path around the pool = 3ft

radius of outer edge of the pool = 15 + 3 = 18ft

To find the circumference of the outer edge of the path around the pool, use the formula below:

where,

r = 18 ft

pi = 3.14

Thus, we have:

Therefore, the circumference of the outer edge of the path around the pool is 113.04 ft

ANSWER:

113.04 ft

Answer:

[tex]M (\frac{x1+x2}{2},\frac{y1+y2}{2} )[/tex]

Step-by-step explanation:

The general form of terms of a Geometric Progression Formulas is a, ar, [tex]$$\mathrm{a} r^2[/tex], [tex]$$\mathrm{a} r^3$[/tex], and so on then the 7th term of the series 6, 12, 24, ........... is 384

Let the first term (a) be 6.

The given series is in geometric progression,

we know that, 7th term = a × [tex]$$r^{7-1}[/tex] = a[tex]$ r^6[/tex]= [tex]6 \times(2)^{6}[/tex] = 384

The general form of terms of a Geometric Progression Formulas is a, ar, [tex]$$\mathrm{a} r^2[/tex], [tex]$$\mathrm{a} r^3$[/tex], and so on.

Here, a is the first term and r is the common ratio.

The nth term of a Geometric Progression Formulas is [tex]$T_n=a r^{n-1}$[/tex]

Common ratio [tex]$=\mathrm{r}=T_n / T_{n-1}$[/tex]

Therefore, the correct answer is 384.

The complete question is:

Find the 7th term of the series 6,12,24,....?

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Answer:

A

Step-by-step explanation:

When distributing, you multiply the outside number to each number in the inside as well as looking at the operation inside the parenthesis. Hope this helps!

Paloma's median practice time would be = 26.5

Median is defined as the middle of a set of data which will be selected after the data has been grouped in an ascending or descending order.

The list to track the number of minutes Paloma spent practicing piano in ascending order include the following:

18, 23, 24, 24, 25, |25, 28,| 28, 30, 32, 32, 35

The middle figures are 25 and 28 which should be added and divided into two.

That is;

25 + 28 = 53/2

= 26.5

Therefore, the median practice time for Paloma = 26.5

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Answer:

3

Step-by-step explanation:

Since the graphs aren't parallel due to not having the same slope we can assume they will intercept once

Answer:

Let b represent the number of hours babysitting, and let l be the number of hours landscaping. We have this system of equations:

[tex]7b + 8l = 134[/tex]

[tex]b = l + 2[/tex]

The value of the function f(x) = 3(1 - x - 2x²)/2 at x = -2 is f(-2) = -15/2 after plugging x = -2.

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

It is given that:

The function is:

f(x) = 3(1 - x - 2x²)/2

It is required to find the value of f(-2)

Plug x = -2

f(-2) = 3(1 - (-2) - 2(-2)²)/2

f(-2) = 3(1 + 2 - 8)/2

f(-2) = 3(-5)/2

f(-2) = -15/2

Thus, the value of the function f(x) = 3(1 - x - 2x²)/2 at x = -2 is f(-2) = -15/2 after plugging x = -2.

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Option D is correct.

Extraneous information means irrelevant or unrelated to the problem or issue.

In this question, Samuel's Age is not a matter of concern and totally unrelated to the money he earns by mowing the lawn and cleaning the room

Answer: 0.01 more

Step-by-step explanation:

60% sure!

The value of k is -1 of tangent over the parabola.

Equation of a line: y = (2 + x - k) ÷ 2, in line form of y = mx + c.

Equation of the parabola: x² = (y - 6x - 3) ÷ 2

Given,

y = (x ÷ 2) + (1) - (k ÷ 2)

where, m = 1 ÷ 2 and c = (1 - k) ÷ 2

For parabola equation in parabola form,

y = 2x² + 6x - 3

y = 2(x² + 3x - n) - 3

n = (b ÷ 2)²

n = (6 ÷ 2)²

n = 9

y = 2(x² + 3x - 9 + 9) - 3

y = 2(x² + 3x + 9) - 9 - 3

y = 2(x² + 3x + 9) - 12

y = 2(x + 3)² - 12, Hence the parabola equation is in vertex form.

Now, comparing the above vertex form with the parabola equation,

x² = 4ay

(x + 3)² = (y ÷ 2) + 6

where a = 1 ÷ 2

Now using the condition of tangency c = a ÷ m

c = (1 - k) ÷ 2

m = 1 ÷ 2

a = 1 ÷ 2

(1 - k) ÷ 2 = (1 ÷ 2) ÷ (1 ÷ 2)

1 - k = 2

k = -1

Therefore, the value of k is -1.

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The original price of the sweater is $48.

Given that, Kate used a 30% off coupon to purchase a sweater.

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

The cost of sweater is $33.60

Let the original price of the sweater be x

Now, x-30% of x=33.60

⇒ x-30x/100 = 33.60

⇒ x -3x/10 =33.60

⇒ 7x/10 =33.60

⇒ 7x=336.0

⇒ x=48

Therefore, the original price of the sweater is $48.

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If you use excel solver for this analysis, the number of different variable cells should you use are 12

Option- C

The right answer is 12.

Given that,

There are four buses that transport children to the district's three main schools. You are aware of the price of transporting each student to each school.

Since there are four buses and three schools according to the supplied description, each bus has three school alternatives, thus 4*3=12, bearing in mind that there must be the least expensive route to transport all of the students to their schools.

There must therefore be 12 separate variable cells employed.

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You would require 1,570 flowers in space of every 6inch to surround the garden with 125feet radius.

First, we need to calculate the circumference of the circle. The formula for the circumference of the circle is:

C = 2πr

If we substitute 125ft for r and use 3.14 to approximate π

we get a circumference of:

C = 2 * 3.14 * 125

C = 6.28 *125

C = 785ft

We can now convert the circumference in feet to inches as follow;

As we know that 1ft = 12inches

∴ 785ft = 12(785) inches = 9,420 inches.

To find how many flowers we need we can divide the circumference in inches by the 6 inches between flowers giving:

=[tex] 9,420in\ X \ \frac{1\ flower}{6 in} [/tex]

=[tex] \frac{9,420}{6 } \ flower [/tex]

=1,570 flowers

Hence You would require 1,570 flowers in space of every 6inch to surround the garden with 125feet radius.

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Answer:

x=1

Step-by-step explanation:

1. distribute through the parentheses

8x-6=2

2. Combine like terms

8x=8

3. Divide by 8

x=1

Hello!

Let's solve:

  [tex]\text{Copy down the equation}\\2(4x-3)=2\\\\\text{Multiply 2 into the equation in the parentheses}\\8x - 6 = 2\\\\\text{Add 6 to both sides of the equation}\\8x-6+6=2+6\\8x=8\\\\\text{Divide by 8 on both sides}\\\dfrac{8x}{8} =\dfrac{8}{8} \\\\x=1[/tex]

Answer: x = 1

Hope that helps!

Answer:

Step-by-step explanationFrom your home, the route to the store tat passes the beach is 2 miles shorter than the route to the store that passes the park. What is the length of each route.:

On Solving inequality  40 + 12.5 v ≥ 225, we get solution v ≥ 14.8. It means Autumn can earn movie ticket from 15 visits.

An inequality is a statement that compares two expressions using ≤, ≥, <, > .

We can solve an inequality by adding same number to both sides or by subtracting same number from both side. While adding or subtracting the sign of the inequality will not change.

When we multiply both sides of the inequality with a positive number then the sign of the inequality does not change, but when we multiply both sides by an negative number then the sign of inequality reverses.

Given that Autumn receives 40 points for signing up and 12.5 points for each visit to the theatre.

Let the number of visits to the theatre be v

Then points earned by v visits = v × 12.5 = 12.5 v

Total points earned = signing up points + points of v visits

⇒ Total points earned  = 40 + 12.5 v

For earning a free movie tickets the total points must be at least 225 or greater than or equal to 225

Then the inequality becomes:

40 + 12.5 v ≥ 225

Subtracting 40 from both sides

⇒ 12.5v ≥ 225-40

⇒12.5v ≥185

Multiplying both sides by 1/12.5

⇒ v ≥ 185/12.5

⇒ v ≥ 14.8

∴ The number of visits must be greater than or equal to 14.8 or nearest integer 15

∴After 15 visits, Autumn will earn a free  movie ticket

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The answer to the given expression 2⁴· [(2²·2⁴)⁻³/2¹⁴] would be 2⁻²⁸ which is determined by the laws of the exponents.

The product rule is an exponent rule that states that when you multiply similar bases, the add exponents.

For example, (a²)·(a³) = a²⁺³ = a⁵

In the power rule, elevating one exponent to a second multiplies the exponents.

For example, (a²)³ = a²ˣ³ = a⁶

The given expression would be as

⇒ 2⁴· [(2²·2⁴)⁻³/2¹⁴]

As per the laws of the exponents, the solution would be as :

⇒ 2⁴· [(2²⁺⁴)⁻³/2¹⁴]

⇒ 2⁴· [(2⁶)⁻³/2¹⁴]

⇒ 2⁴· (2⁻¹⁸/2¹⁴)

⇒ 2⁴· (2⁻¹⁸⁻¹⁴)

⇒ 2⁴· (2⁻³²)

⇒ 2⁴⁻³²

⇒ 2⁻²⁸

Therefore, the answer would be 2⁻²⁸.

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Answer:

Step-by-step explanation:

u will have 1 niche of water in 2 hours