please hurry not much more time answer even if its too late somebody else can use the answer.


6. Middle school class representatives conducted a poll during lunch to see which activity students wanted for their year-end party. The results are shown in this relative frequency table below:


a) For the entire school, which was more popular, water slides or roller skating? (1 point)


THE ANSWER FOR A IS: ROLLER SKATING


b) 34% of the 6th graders and 50% of the 7th graders want to go to the water slides. What percentage of the 8th graders want to go to the water slides? (1 point)


c) Does there seem to an association between grade level and field trip choice? (2 points)


d) If this trend continued, would you expect 9th graders to prefer the water slides or roller skating? Explain your answer. (2 points)

Answer:

47.18 ft

Step-by-step explanation:

Hey there!

Using Trigonometric Formula;

SOHCAHTOA

We have; Angle of 65°

> Adjacent length, ,22

> h = ? opposite

So we use Tan

Tan ∆ = Opposite/ Adjacent

Tan (65°) = opposite (h)/(22)

h = Tan (65°)/(22)

= 47.18 ft

I hope this helps. Have a nice studies.

Answer:

18.2%

Step-by-step explanation:

Given data

Principal=  $2500

Final amount= $3600

Time = 2 years

Rate=???

The expression for the rate is given as

r= ln(A/P)/t

substitute

r= ln(2500/3600)/2

r= ln(0.6944)/2

r= -0.364/2

r= 0.182

Hence the rate is 18.2%

To find the area of the region interior to r = 9 + 7sin(θ) below the polar axis, we can integrate the function from the lower bound of θ to the upper bound of θ and take the absolute value of the integral.

To find the area of the region formed by two petals of r = 8sin(3θ), we can integrate the function over the appropriate range of θ and take the absolute value of the integral. To find dy/dx for the given parametric equations x = t^(1/3) and y = 3 - t, we differentiate y with respect to t and x with respect to t and then divide dy/dt by dx/dt.

To find the area of the region interior to r = 9 + 7sin(θ) below the polar axis, we need to evaluate the integral ∫[lower bound to upper bound] |1/2 * r^2 * dθ|. In this case, the lower bound and upper bound of θ will depend on the range of values where the function is below the polar axis. By integrating the expression, we can find the area of the region. To find the area of the region formed by two petals of r = 8sin(3θ), we need to evaluate the integral ∫[lower bound to upper bound] |1/2 * r^2 * dθ|.

The lower bound and upper bound of θ will depend on the range of values where the function forms the desired shape. By integrating the expression, we can calculate the area of the region. To find dy/dx for the parametric equations x = t^(1/3) and y = 3 - t, we differentiate both equations with respect to t. Taking the derivative of y with respect to t gives dy/dt = -1, and differentiating x with respect to t gives dx/dt = (1/3) * t^(-2/3). Finally, we can find dy/dx by dividing dy/dt by dx/dt, resulting in dy/dx = -3 * t^(2/3).

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Answer:

35 miles

Step-by-step explanation:

You add up all of the miles on the chart to get 35 miles. Have a great day! I hope this helped.

The circumference of a circle is given by the following formula:

From this equation, we can solve for r by dividing both sides by 2π, like this:

By replacing 40π for c, we get:

Then, the radius of the circle equals 20

Can't answer 1-6 cause I have no idea what you need

7) A triangle with two congruent sides is isosceles.

8) \(\overline{AC}\) and \(\overline{BC}\)

9) \(\angle C\)

10) \(\overline{AB}\)

11) \(\angle A, \angle B\)

12) isosceles triangle

Answer:

ARITHMETIC SEQUENCE

Step-by-step explanation:

16 - 10 = 6

22 - 16 = 6

d = 6

a = 10

Tn = a + ( n - 1 )d

Tn = 10 + ( n - 1 ) 6

Tn = 10 +6n - 6

Tn = 6n + 4

Answer:

Rina is 1/4 feet taller than Ryan

Step-by-step explanation:

(height of Rina)-(height of Ryan)

6x+3/8-(5x+1/8)

6x+3/8-5x-1/8

x+3-1/8

x+2/8

x+1/4

It will take approximately 138 months or 11 years and 6 months for the tithe to double in value if invested at 7.75% APR compounded monthly.

To solve this problem, we can use the Time Value of Money (TVM) Solver function in Excel or a financial calculator.

The TVM Solver helps to calculate the time required to double the initial amount invested, given the interest rate, compounding frequency, and the present value of the investment.

Using the TVM Solver, we can enter the following values:

Number of Periods (N) = the time required to double the initial investment

Solving for N, we get:

N = 138.24 months

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Answer:

Integer - 72

Decimal - 72.3

Answer:

.here is the answer ............

Answer:

-5

Step-by-step explanation:

Answer: it would be -5

Step-by-step explanation: it is negative 5 because that is where there is no x intercept

The pattern of error seems to be adding 4 and subtracting 10 in each calculation.

In the first example, the student adds 4 to the correct sum of 10 and 6, resulting in 14 instead of the correct answer of 16. In the second example, the student subtracts 10 from the correct difference of 11 - 5, resulting in 1 instead of the correct answer of 6.

From these examples, we can observe a consistent pattern in the errors made by the student. Specifically, the student is adding 4 to the correct sum and subtracting 10 from the correct difference. This suggests that the student may have misunderstood or misapplied the rules of addition and subtraction.

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Answer:

y = - 4/1 x - 3

Step-by-step explanation:

ANSWER

x+y)^2=x^2+y^2+2xy -eq1

because

first we will take the LHS of eq1, i.e,

(x+y)^2

(x+y)(x+y)

x(x+y)+y(x+y)

x^2+xy+xy+y^2

x^2+2xy+y^2

Or

x^2+2xy+y^2

Hence, LHS=RHS

Answer:

80

Step-by-step explanation:

First move like terms to one side:

x/2=25+15

Notice that the sign (+ or -) changes when we switch it to the opposite side

x/2=40

Multiply both sides by 2...

x=80

Answer:

x = 80

Step-by-step explanation:

\(\frac{x}{2}\) - 15 = 25 ( add 15 to both sides )

\(\frac{x}{2}\) = 40 ( multiply both sides by 2 to clear the fraction )

x = 40 × 2 = 80

The pH of a 0.10M Tris-acid solution is 4.65.

pH: The pH of a solution is the negative logarithm (base 10) of the hydrogen ion concentration in moles per liter. In other words, it is a measure of the acidity or basicity of a solution. The pH scale ranges from 0 to 14, where 7 is neutral, less than 7 is acidic, and greater than 7 is basic or alkaline.What is the pH of a 0.10 M Tris-base solution? (pH 10.65)For the reaction, Tris-base + H₂O ↔ Tris-acid + OH⁻, the pKb of Tris-base can be computed as: pKb + pKa = 14pKb = 14 - pKa = 14 - 8.30 = 5.7Thus, Kb = antilog (-5.7) = 1.995 x 10⁻⁶, which is the equilibrium constant for the reaction Tris-base + H₂O ↔ Tris-acid + OH⁻[OH⁻] = Kb x [Tris-base] / [H₂O] = 1.995 x 10⁻⁶ x 0.10 / 1000 = 1.995 x 10⁻⁷pH = 14 - pOH = 14 - (-log[OH⁻]) = 14 - (-log(1.995 x 10⁻⁷)) = 10.65Therefore, the pH of a 0.10M Tris-base solution is 10.65.What is the pH of the solution after mixing 35.0 mL0.10M Tris-base with 2.50 mL of 1.00 M HCl. The pKa of Tris-acid is 8.30 at 25°C. (pH7.90)The balanced chemical equation is Tris-base + HCl ↔ Tris-acid + Cl⁻Initial concentration of Tris-base = (35.0 / 37.50) x 0.10 = 0.0933 MInitial concentration of HCl = (2.50 / 37.50) x 1.00 = 0.0667 MInitially, the mixture was a buffer solution with a pH of:pH = pKa + log([A⁻] / [HA])pH = 8.30 + log(0.0933 / 0.00667) = 9.35The number of moles of Tris-base and HCl can be calculated as follows:Number of moles of Tris-base = 35.0 / 1000 L x 0.10 mol / L = 0.0035 molNumber of moles of HCl = 2.50 / 1000 L x 1.00 mol / L = 0.0025 mol

The limiting reagent in the reaction is HCl, and all of it will be used up. Tris-base will be converted to Tris-acid. Therefore, the number of moles of Tris-base remaining will be:Number of moles of Tris-base remaining = 0.0035 mol - 0.0025 mol = 0.0010 molSince the volume of the mixture is 37.5 mL, the concentration of Tris-acid is 0.0010 mol / 0.0375 L = 0.0267 M.The concentration of Cl⁻ in the mixture is 0.0667 M, and the concentration of Tris-base remaining is 0.0010 M. Therefore, the concentration of OH⁻ can be calculated as follows:[OH⁻] = Kw / [H⁺] = 1.0 x 10⁻¹⁴ / 0.0667 = 1.50 x 10⁻¹³The pH of the mixture is:pH = pKa + log([A⁻] / [HA])pH = 8.30 + log(0.0010 / 0.0267) = 7.90Therefore, the pH of the solution after mixing 35.0 mL0.10M Tris-base with 2.50 mL of 1.00 M HCl is 7.90.What is the pH of a 0.10M Tris-acid solution? (pH 4.65)The pKb of Tris-acid can be calculated as:pKb + pKa = 14pKb = 14 - pKa = 14 - 8.30 = 5.7Kb = antilog (-5.7) = 1.995 x 10⁻⁶The Kb for Tris-acid can be used to calculate the concentration of OH⁻:[OH⁻] = Kb x [HA] / [H₂O] = 1.995 x 10⁻⁶ x 0.10 / 1000 = 1.995 x 10⁻⁷The pH of the solution can be calculated as:pH = 14 - pOH = 14 - (-log[OH⁻]) = 14 - (-log(1.995 x 10⁻⁷)) = 4.65Therefore, the pH of a 0.10M Tris-acid solution is 4.65.

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Step-by-step explanation:

2/11 = 0.18181818......

Hope it helps you

Answer:

0. 181818181818181818181818181818181818181818...

Step-by-step explanation:

Hope it helps! Please mark Brainliest! :)

Answer:

depends on how many miles you can go on 1 mile.

Answer:

you can go around 840-1680

Step-by-step explanation:

1 gallon = 30-60 miles

28x30=840 miles

28x60=1680 miles

Your welcome

Answer:

5x+3

Step-by-step explanation:

(f+g)(x) = f(x)+g(x)

= 2x−6 + (3x+9)

= 5x+3

Answer:

Hope this will help you

Step-by-step explanation:

\(volume \: of \: rectangular \: prism = l \times b \times h \\ = 0.6 ft\times 0.8 ft\times 3.8ft \\ = 1.824 {ft}^{3} \)

Answer: i believe is c or d i not 100% sure

Answer:3/4

Step-by-step explanation:

tan^2+1=sec^2

20,000 = 1750 e^(0.6t)

Divide both sides by 1750:

11.43 = e^(0.6t)

Take the natural log of both sides:

ln(11.43) = 0.6t

Divide both sides by 0.6:

t ≈ 6 years

So it will take approximately 6 years (rounded to the nearest year) for the town's population to reach 20,000.
To find the number of years it takes for the population to reach 20,000, we need to solve the equation for t, using the given equation:

20,000 = 1750 * e^(0.6 * t)

Step 1: Divide both sides of the equation by 1750:
20,000 / 1750 ≈ 11.43 = e^(0.6 * t)

Step 2: Take the natural logarithm (ln) of both sides:
ln(11.43) ≈ 2.435 ≈ 0.6 * t

Step 3: Divide both sides by 0.6 to isolate t:
2.435 / 0.6 ≈ t

Step 4: Calculate t:
t ≈ 4.06

Approximately, it will take 4 years (rounded to the nearest year) for the town's population to reach 20,000.

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The z-score of an appliance that failed after 64 months is 2.

To find the z-score:

The given parameters are:

The z-score is then computed as follows:

We have the following for an appliance that stopped working after 64 months:

So, the equation becomes:

Compare and contrast the differences:

Calculate the quotient:

Therefore, the z-score of an appliance that failed after 64 months is 2.

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The system capacity is 2 units per minute, the bottleneck stage is Stage A, and the utilization of Stage 3 is 100%.

A line process has three processing stages with the characteristics given below:

Stage A B C Unit processing time(minutes) 1 2 3 Number of machines 1 1 2 Machine availability 90% 100% 100% Process yield at stage 100% 100% 100%

To determine the system capacity and the bottleneck stage and utilization of Stage 3:

The system capacity is calculated by the product of the processing capacity of each stage:

1 x 1 x 2 = 2 units per minute

The bottleneck stage is the stage with the lowest capacity and it is Stage A. Therefore, Stage A has the lowest capacity and determines the system capacity.The utilization of Stage 3 can be calculated as the processing time per unit divided by the available time per unit:

Process time per unit = 1 + 2 + 3 = 6 minutes per unit

Available time per unit = 90% x 100% x 100% = 0.9 x 1 x 1 = 0.9 minutes per unit

The utilization of Stage 3 is, therefore, (6/0.9) x 100% = 666.67%.

However, utilization cannot be greater than 100%, so the actual utilization of Stage 3 is 100%.

Hence, the system capacity is 2 units per minute, the bottleneck stage is Stage A, and the utilization of Stage 3 is 100%.

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Answer:

33

Step-by-step explanation:

I believe that the question is asking this

4q+25 and not 4(q+25)

so 4(2)=8+25 is 33

So 4 times a number q means 4*q and when q is 2 you will get 8 and when you add that to 25 you get 33