A toll bridge charges $1.00 for passenger cars and $2.50 for other vehicles. Suppose that during daytime hours, 65% of all vehicles are passenger cars. If 20 vehicles cross the bridge during a particular daytime period, what is the resulting expected toll revenue? [Hint: Let X = the number of passenger cars; then the toll revenue h(X) is a linear function of X.]
The Himalayas have an uplift rate of about 2 inches per year. Assuming uplift began 40 million years ago, calculate how high the mountains would be in feet (elevation above sea level) today.
plez help me and show your work
0.7/10 = 0.07
1.05 / 15 = 0.07
1.40 / 20 =0.07
1.75/25 = 0.07
yes it is proportional ( they all equal the same when divided)
proportion = 0.07
Part B) y = 0.07x
Multiply and give the answer in scientific notation: (2.3 x 10-3)(3 x 108)
Answer:
Scientific notation of [tex](2.3\times 10^{-3})\times (3\times 10^{8})[/tex] is [tex]6.9\times 10^{5}[/tex] .
Step-by-step explanation:
As given the expression in the question be as follow .
[tex]= (2.3\times 10^{-3})\times (3\times 10^{8})[/tex]
Simplify the above terms
[tex]= 2.3\times 10^{-3}\times 3\times 10^{8}[/tex]
[tex]= 2.3\times 3\times 10^{-3}\times 10^{8}[/tex]
Now by using the exponent property
[tex]x^{a}\times x^{b} = x^{a + b}[/tex]
Thus apply this property in the above
[tex]= 6.9\times 10^{-3+8}[/tex]
[tex]= 6.9\times 10^{5}[/tex]
Therefore scientific notation of [tex](2.3\times 10^{-3})\times (3\times 10^{8})[/tex] is [tex]6.9\times 10^{5}[/tex] .
You have been observing a population of swallowtail butterflies for the last 10 years. the size of the population has varied as follows: 54, 11, 89, 17, 66, 58, 5, 9, 99, and 23. what is the effective population size of this population of butterflies (give your answer as an integer)?
Which of the following matrices represents the average number of vehicles sold for the two months shown in the table below?
Kathy can clean 12 house in 10 hrs. If she goes at a steady pace. How many hrs. will it take her to clean 27 houses?
two crooks rob a bank and flee to the east at 66mph. in 30 minutes, the police follow them in a helicopter, flying 132mph. how long will it take for police to overtake the robbers?
To calculate this, firstly we need the initial lead of the robbers in miles before the police starts to chase, which is the product of the speed of the robbers and the time before the police starts to chase. Given that the speed of robbers is 66 mph and the time before the police chase is 0.5 hours, multiplying these gives a robber lead of 33 miles.
Next, to determine how quickly the police can close this gap, we need to calculate the relative speed of the police helicopter compared to the robbers. The speed of the police is 132 mph and the speed of the robbers is 66 mph, the difference between these two speeds is the relative speed. So, 132 mph - 66 mph gives a relative speed of 66 mph.
Finally, the time it will take for the police to catch up to the robbers - the catchup time - is the ratio of the initial lead of the robbers to the relative speed of the police. Here it is 33 miles divided by 66 mph, this yields a catchup time of 0.5 hours.
Therefore, it will take the police 0.5 hours to overtake the robbers.
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Please please please please help me out.
What is the volume of the item described?
A capsule consisting of a cylinder of radius 3 mm and height 6 mm with a hemisphere on each end of radius 3 mm.
Answer:
90 and 283
Step-by-step explanation:
Add: 3 cups 6 oz + 2 cups 9 oz
6 cups 7oz is your answer
if a cylinder has a V=3053.6 cubic inches and a radius of 9 inches, what is the height of the cylinder to the nearest inch?
Answer:
12
Step-by-step explanation:
12 inches
Messages arrive to a computer server according to a poisson distribution with a mean rate of 10 per hour. determine the length of an interval of time such that the probability that no messages arrive during this interval is 0.90.
74,137 rounded to the nearest thousands is
On Wednesday, Miguel's bank account balance was -$55. On Thursday, his balance was less than that. Use absolute value to describe Miguel's balance on Thursday as a debt. In this situation, -$55 represents a debt of _________. On Thursday, Miguel had a debt of _____________than $55.
In this situation, the -$55 represents the debt of $55, since this happens when Miguel does not have enough money in his account to cover payments or transactions. On Thursday, he has a debt of more than $55. The explanation behind this is if an account balance is less than -55 dollars, it exemplifies a debt bigger than 55 dollars.
if (sin(()−1))p =2cos(()−1)q , show that p^2 =4q^2 (1− q^2) ?.
To show that p^2 = 4q^2(1-q^2), we use trigonometric identities and algebraic manipulations to prove the given equation sin((θ-1)p) = 2cos((θ-1)q). By taking the inverse sine, squaring both sides, and applying trigonometric identities, we arrive at the desired result.
Explanation:To show that p^2 = 4q^2(1-q^2), we need to start with the equation sin((θ-1)p) = 2cos((θ-1)q). We can use the trigonometric identities and algebraic manipulations to prove this equation.
Start by taking the inverse sine of both sides: (θ-1)p = sin^(-1)(2cos(θ-1)q).Next, use the identity sin^(-1)(x) = θ: (θ-1)p = sin^(-1)(2cos(θ-1)q) becomes p = sin^(-1)(2cos(θ-1)q)/(θ-1).Square both sides of the equation to eliminate the inverse sine: p^2 = (sin^(-1)(2cos(θ-1)q)/(θ-1))^2.Apply the identity sin^2(θ) = 1 - cos^2(θ) to the right side of the equation: p^2 = (1 - cos^2(sin^(-1)(2cos(θ-1)q)/(θ-1))))Finally, simplify the equation using algebraic manipulations to arrive at p^2 = 4q^2(1-q^2).Learn more about Trigonometry here:https://brainly.com/question/31896723
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What is the probability a sample of 90 test takers will provide a sample mean test score within 10 points of the population mean of 502 on the critical reading part of the test (to 4 decimals)? 0.6578?
The probability that the sample mean of 90 test takers falls within 10 points of the population mean of 502 is approximately 0.6578.
To find the probability that a sample of 90 test takers will provide a sample mean test score within 10 points of the population mean of 502 on the critical reading part of the test, we need to calculate the probability using the standard normal distribution.
Given:
- Population mean [tex](\(\mu\))[/tex]: 502
- Sample size[tex](\(n\))[/tex]: 90
- Standard deviation [tex](\(\sigma\))[/tex] of the population (assumed known or provided): Let's assume it is 100 (for example purposes).
We are looking for the probability that the sample mean[tex](\(\bar{X}\))[/tex] falls within 10 points of the population mean (502 ± 10).
Step 1: Calculate the standard error of the mean (SEM):
[tex]\[ SEM = \frac{\sigma}{\sqrt{n}} \][/tex]
[tex]\[ SEM = \frac{100}{\sqrt{90}} \][/tex]
[tex]\[ SEM = \frac{100}{9.4867} \][/tex]
[tex]\[ SEM \approx 10.548 \][/tex]
Step 2: Convert the deviation of ±10 points from the mean into a z-score using the standard normal distribution:
[tex]\[ z = \frac{\text{sample mean} - \mu}{SEM} \][/tex]
For the upper bound:
[tex]\[ z_{\text{upper}} = \frac{502 + 10 - 502}{10.548} \][/tex]
[tex]\[ z_{\text{upper}} = \frac{10}{10.548} \][/tex]
[tex]\[ z_{\text{upper}} \approx 0.9497 \][/tex]
For the lower bound:
[tex]\[ z_{\text{lower}} = \frac{502 - 10 - 502}{10.548} \][/tex]
[tex]\[ z_{\text{lower}} = \frac{-10}{10.548} \][/tex]
[tex]\[ z_{\text{lower}} \approx -0.9497 \][/tex]
Step 3: Find the cumulative probabilities using the standard normal distribution table or a calculator:
[tex]\[ P(-0.9497 \leq Z \leq 0.9497) \][/tex]
Using a standard normal distribution table or a calculator, find:
[tex]\[ P(Z \leq 0.9497) \approx 0.8289 \][/tex]
[tex]\[ P(Z \leq -0.9497) \approx 0.1711 \][/tex]
Step 4: Calculate the probability that the sample mean falls within 10 points of the population mean:
[tex]\[ P(-0.9497 \leq Z \leq 0.9497) = 0.8289 - 0.1711 \][/tex]
[tex]\[ P(-0.9497 \leq Z \leq 0.9497) = 0.6578 \][/tex]
Therefore, the probability that a sample of 90 test takers will provide a sample mean test score within 10 points of the population mean of 502 is approximately [tex]{0.6578} \).[/tex]
if 60 blimps each had 70 people on board,how many people would be riding on the blimp
By multiplying the number of blimps (60) with the number of people on each blimp (70), we find that a total of 4200 people would be riding on the blimps.
Explanation:This is a simple multiplication problem, where you simply need to multiply the number of blimps by the number of people on each blimp to get the total number of people. In this case, we have 60 blimps each carrying 70 people. So we multiply 60 blimps by 70 people to get the total number of people, which is 4200 people. Therefore, if 60 blimps each had 70 people on board, a total of 4200 people would be riding on the blimps.
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The perimeter of a rectangular garden is 90 meters. the length is 6 meters longer than twice the width. find the dimensions of the garden.
The width of the rectangular garden is 13 meters and the length is 32 meters.
Explanation:The problem pertains to perimeter of a rectangle, which is calculated by the formula 2*(length + width). You're told the perimeter is 90 meters, and that the length is 6 meters longer than twice the width.
So, let's denote the width as x. Then the length would be 2x + 6.
Substitute these expressions into the perimeter formula: 2*(x + 2x + 6) = 90. Simplifying this equation gives us 6x + 12 = 90.
Subtract 12 from both sides of the equation to get 6x = 78. Finally, divide each side by 6 to solve for x, which results in x = 13.
Since x represents the width of the rectangular garden, the width is 13 meters. The length, which is twice the width plus 6, is 2*13 + 6 = 32 meters.
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which of the following fraction is more 2/3, 7/8, 1/2, or 3/4
Given right triangle JKM, which correctly describes the locations of the sides in relation to ∠J? a is the hypotenuse, b is adjacent, c is opposite a is the hypotenuse, b is opposite, c is adjacent a is adjacent, b is opposite, c is the hypotenuse a is opposite, b is the hypotenuse, c is adjacent
Answer:
Your answer would be option A. a is the hypotenuse, b is adjacent, c is opposite
Step-by-step explanation:
Hope this helps! :)
Brainliest would be very much appreciated :D
Which equation is equivalent toy- 6 = -12(x+ 4)? (1 point)
a. y=-6x-48
b. y=6x-48
c. y=-12x-42
d. y=-12x-54?
Molly bake 24 blueberry muffins and 18 banana muffins she wants to package them for a bake sale each package will have the same number of each kind of muffin what is the greatest number of packages that molly can make if she wants to use all of the muffins
Write the expanded form using fraction or decimal 24.357
A childcare center charges $150 per week during the school year In the summer, parents can pay a prorated amount based on the number of days of attendance How much do parents pay per day
The statement below describes a situation in which opposite quantities combine to make 0. Is the statement true or false? A plane takes off, circles the airport, then lands at the same airport
Answer:
its true
Step-by-step explanation:
y varies directly as x when x= 3 and y =12 find y when x =12
choose the ratio that you would use to convert 2.5 centimeters to meters please
The ratio which is used to convert 2.5 centimeters to meters is : (d) 1 meter/100 centimeter.
To convert 2.5 centimeters to meters, we choose the ratio that relates centimeters to meters,
The correct ratio to use in this case is 1 meter/100 centimeters,
This ratio states that there are 100 centimeters in 1 meter.
To convert centimeters to meters, we divide the given measurement (2.5 centimeters) by the ratio of 1 meter/100 centimeters.
Using this ratio, we have:
2.5 centimeters × (1 meter/100 centimeters) = 2.5/100 meters
2.5/100 = 0.025 meters,
So, 2.5 centimeters is equal to 0.025 meters.
Therefore, The correct answer is (d) 1 meter/100 centimeter.
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the product of two consecutive integers is 272. which quadratic can be used to find x, the smaller smaller number?
The quadratic equation that can be used to find x the smaller number is x^2 + x - 272 = 0.
What is a quadratic equation?A quadratic equation is a polynomial which has the highest degree equal to two. It is a second-degree equation of the form ax² + bx + c = 0, where a, b, are the coefficients, c is the constant term, and x is the variable.
For the given situation,
Let the integer be x and the consecutive next integer be x+1.
The product of two consecutive integers is 272,
⇒ [tex]x(x+1)=272[/tex]
⇒ [tex]x^{2} +x=272[/tex]
⇒ [tex]x^{2} +x-272=0[/tex]
Hence we can conclude that the quadratic equation that can be used to find x the smaller number is x^2 + x - 272 = 0.
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what is the indicated operation of
10 3/7 + 19 5/9
Final answer:
To find the sum of mixed numbers, convert them into improper fractions and then add the fractions together. The answer here is 1889/63.
Explanation:
The student’s question “what is the indicated operation of 10 3/7 + 19 5/9” asks to perform the operation of addition between two mixed numbers. The indicated operation is addition. To add these mixed numbers, you first add the whole numbers (10 + 19) and then add the fractions (3/7 + 5/9). When adding fractions, find a common denominator, in this case, 63, and convert the fractions to have this common denominator before adding.
To find the sum of mixed numbers, we first convert them into improper fractions.
10 3/7 becomes 73/7 and 19 5/9 becomes 176/9.
Then, we add the numerator of the fractions and keep the denominator the same. So, 73/7 + 176/9 = (73 * 9 + 7 * 176)/(7 * 9). Which gives 1889/63.
Find the improper fraction with a denominator of 12 that is equivalent to 10 1/4
To find the improper fraction equivalent to 10 1/4 with a denominator of 12, convert the mixed number to an improper fraction and then multiply the numerator and denominator by a factor that will result in a denominator of 12. The improper fraction equivalent is 123/12.
Explanation:To find the improper fraction equivalent to 10 1/4 with a denominator of 12, we need to convert the mixed number to an improper fraction and then multiply the numerator and denominator by a factor that will result in a denominator of 12.
Step 1: Convert the mixed number to an improper fraction.
10 1/4 = (10 * 4 + 1) / 4 = 41/4
Step 2: Multiply the numerator and denominator by a factor that will result in a denominator of 12.
41/4 * 3/3 = 123/12
Therefore, the improper fraction equivalent to 10 1/4 with a denominator of 12 is 123/12.
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