PLZ ANSWER I BEG U
An airplane flies to San Francisco from Los Angeles in 4 hours. It flies back in 3 hours. If the wind is blowing from the north at a velocity of 20 mph during both flights, what was the airspeed of the plane (its speed in still air)?

Final answer:

To find the remainder when dividing x^4-3x^2-9x+4 by x-3, substitute x=3 into the polynomial and calculate the expression.

Explanation:

To find the remainder when dividing x^4-3x^2-9x+4 by x-3, we can use the Remainder Theorem. According to the theorem, if we substitute the opposite of the divisor into the polynomial, the remainder will be the value we get.

So, substitute x = 3 into the polynomial:

3^4 - 3(3)^2 - 9(3) + 4

Calculating this expression, we find that the remainder is 142.

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 quadratic equation that can be used to find x the smaller number is x^2 + x - 272 = 0.

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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Answer:

You can display data in a histogram by labeling the x and y axis with your numbers provided. Then you put in the amount of numbers.

Answer:

Sample response: To create a histogram, first label the x-axis and choose the interval. Then calculate the frequency of each interval. Next, label the y-axis and determine the scale. Now create the bars. Draw bars the height of the frequency for each interval. Last, give the graph a title.

Step-by-step explanation:

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

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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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.

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.

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Answer:

its true

Step-by-step explanation:

The width of the rectangular garden is 13 meters and the length is 32 meters.

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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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] .

Answer:

90 and 283

Step-by-step explanation:

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.

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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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.

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.

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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Answer:

[tex]\frac{4}{5}\frac{cup}{liter}.[/tex]

Step-by-step explanation:

The problem says that Angela uses 2/3 cup strawberries to make 5/6 liter of smoothies. Then, to find the unit rate in cups of strawberrry per liter, that is cup/liter we need to divide both fractions:

[tex]\frac{\frac{2}{3}cup}{\frac{5}{6}liter} = \frac{2*6}{3*5}\frac{cup}{liter} = \frac{12}{15}\frac{cup}{liter}= \frac{4}{5}\frac{cup}{liter}.[/tex]

Then, the unit rate in cups of strawberry per liter is [tex]\frac{4}{5}\frac{cup}{liter}.[/tex] That is, Angela uses 4/5 cups of strawberry to do 1 liter of smoothie.

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]

Answer:

Your answer would be option A. a is the hypotenuse, b is adjacent, c is opposite

Step-by-step explanation:

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The end behavior of the function f(x) = 2x³ – 26x – 24 can be described as:

As x → -∞, y →-∞ and as x→∞, y →∞.

An expression that consists of variables, constants, and exponents that are combined using mathematical operations like addition, subtraction, multiplication, and division is referred to as a polynomial.

To determine the end behavior of the polynomial function f(x) = 2x³ – 26x – 24, we need to examine the degree of the polynomial and the sign of its leading coefficient.

The degree of the polynomial is 3, which means it is an odd-degree polynomial.

The sign of the leading coefficient is positive (+2). These two pieces of information tell us that the end behavior of the graph will be as follows:

As x becomes very large in the positive direction, the values of the function will also become very large in the positive direction.

As x becomes very large in the negative direction, the values of the function will become very large in the negative direction.

Therefore, as x → -∞, y →-∞ and as x→∞, y →∞.

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