Hi I just need Part A. I’m in high school calculus 1 and this is a homework. thank you !

Answer:

you have the correct answers

Step-by-step explanation:

you already have the right answers

Answer:

8 is 1

Step-by-step explanation: Multiply

The simplified form of the expression  (9² - 4 - 4) - (- 2³ - + 12) is 93.

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, An expression (9² - 4 - 4) - (- 2³ - + 12).

= (9×9 - 8) - (- 2×2×2 - 12).

= (81 - 8) - (- 8 - 12).

= (73) - (- 20).

= 73 + 20.

= 93.

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Answer:

A. – 2m + 4 = -6

Step-by-step explanation:

I should know. I did the question.

Answer:

9.09%

(⬇Read my notes⬇)

Notes:

Hi there,

I know this answer is going to be incorrect on RSM, but it is the correct answer. Everyone has been saying that it's 9.09%, and I even found that as well. So I don't know why RSM is saying that it's wrong, because it should be correct.

- 201600823

the probability of randomly selecting the correct unscrambling would be 1/n!. As the length of the word increases, the probability of randomly selecting the correct unscrambling becomes increasingly small due to the exponential growth of possible arrangements.

The probability of coming up with the correct unscrambling through random letter selection depends on the specific word being unscrambled and the number of possible permutations. In general, the probability can be quite low due to the large number of possible combinations.

To calculate the probability, you would need to know the total number of possible letter arrangements and the number of arrangements that result in the correct unscrambling. Let's assume we have a word with n letters. The total number of possible arrangements is n!, which represents n factorial (the product of all positive integers from 1 to n).

The number of arrangements that result in the correct unscrambling depends on the specific word and the length of the word. For example, if the word has 4 letters, there are 24 possible arrangements (4!). However, only one of those arrangements is the correct unscrambling.

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The lifting force if the speed is 220 miles per hour is F' = 708.53 N.

The force of light, or simply light, is the sum of all forces on an object that cause the object to move perpendicular to the direction of flow.

The most common type of lift is the wing lift. But there are many other common uses, such as propellers on airplanes and ships, rotors on helicopters, fan blades, sails on sailboats, and wind turbines.

We have,

The lifting force, F, exerted on an airplane wing varies jointly as the area, A, of the wing's surface and the square of the plane's velocity, v. It, means that,

\(F=kAv^{2}\)

Where

k is constant

If, A = 190 Ft², v = 220 mph, F = 950 pounds

Now, find k first from the above data. So,

    \(k=\frac{F}{Av^{2} }\)

⇒ \(k=\frac{950}{190* (220)^2}\)

⇒ k = 0.0001033

It is required to find the lifting force on the wing if the plane slows down to 190 miles per hour.

Let F' is a new force. So,

    F' = 0.0001033 × 190 × (190)²

⇒ F' = 708.53 pounds.

So, the lifting force is 708.53 pounds if the plane slows down to 190 miles per hour.

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Answer:

981,518

Step-by-step explanation:

Have a nice day :)

Answer:

25\(\pi\ m^2\)

Step-by-step explanation:

Given that:

A large circle in the park has its middle part painted.

The circle is divided in 4 equal parts.

Radius of the circle = 10 meters

To find:

Area of each section of the circle, \(A\) = ?

Solution:

Here, we need to find the area of the bigger circle first and then need to divide it into 4 equal parts to find out the answer.

First of all, let us have a look at the formula for area of a circle with given radius \(r\):

\(Area = \pi r^2\)

Here, \(r = 10 m\)

Putting the value in the above formula, we get:

So, area = \(\pi 10^2 = 100\pi\ m^2\)

Now, there are 4 equal parts of the circle, therefore area of each section will be equal.

Area of each section of the circle:

\(\dfrac{100\pi}{4} = \bold{25 \pi}\ m^2\)

Answer:a

Step-by-step explanation:

bc u just add them together

Answer:

B

Step-by-step explanation:

Took test on edge

Answer:

400

Step-by-step explanation:

Car A costs 80d + 0.25m, where d is days and m is miles. Car B costs 100d + 0.10m. If you plug in 3 for d and make the equations equal, you get 240 + 0.25m = 300 + 0.10m. Combining like terms gives you 0.15m = 60, and dividing gives you m = 400.

Using the inequality concept, the expression which models the maximum number of days in which she can rent the car is 80x + 15 ≤ 300

The inequality which represents the number of days Can be expressed thus :

(Charge per day × number of days) + (charge per mile × number of miles) ≤ 300

Hence, the required inequality expression is 80x + 15 ≤ 300

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Answer:

-51

Step-by-step explanation:

4xy + 2y^2-z

4(5)(-4) +2(-4)^2 -3

(20)(-4) + 2(-4)^2 -3

-80 +(2)(16) - 3

-80 + 32 - 3

-48-3

-51

The equation of the tangent line is y = 2x + 7.

The slope of the tangent line can be found by taking the derivative of the function f(x) = x^2 - 8. Differentiating f(x) with respect to x, we get f'(x) = 2x.

Substituting x = -3 into f'(x), we find that the slope of the tangent line at x = -3 is m = 2(-3) = -6.

Using the point-slope form of a line equation, we have:

y - y1 = m(x - x1),

where (x1, y1) represents the coordinates of the point (-3, 1) and m is the slope.

Substituting the values, we get:

y - 1 = -6(x - (-3)).

Simplifying further:

y - 1 = -6(x + 3).

Expanding the brackets:

y - 1 = -6x - 18.

Adding 1 to both sides, we get:

y = -6x - 17.

Therefore, the equation of the tangent line to the graph of f(x) = x^2 - 8 at the point (-3, 1) is y = -6x - 17.

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To determine if the success ratios of Incubator A and Incubator B are significantly different, we can perform a hypothesis test.

Let's set up the null and alternative hypotheses as follows:

Null Hypothesis (H0): The success ratios of Incubator A and Incubator B are not significantly different.

Alternative Hypothesis (H1): The success ratios of Incubator A and Incubator B are significantly different.

We can use a significance level (α) of 0.05, which is a common choice.

To test the hypothesis, we can use a two-proportion z-test since we are comparing the success ratios of two groups. The formula for the test statistic is:

z = (p1 - p2) / sqrt(p_hat * (1 - p_hat) * (1/n1 + 1/n2))

where:

p1 and p2 are the success ratios of Incubator A and Incubator B, respectively,

p_hat is the pooled sample proportion,

n1 and n2 are the sample sizes of Incubator A and Incubator B, respectively.

Let's calculate the test statistic and compare it to the critical value to make a decision.

Given:

Success ratio of Incubator A (p1) = 0.70

Sample size of Incubator A (n1) = 57

Success ratio of Incubator B (p2) = 0.39

Sample size of Incubator B (n2) = 40

First, calculate the pooled sample proportion (p_hat):

p_hat = (x1 + x2) / (n1 + n2)

where x1 is the number of successes in Incubator A and x2 is the number of successes in Incubator B. Since we are not given the actual counts, we cannot calculate the exact value of p_hat.

Next, calculate the test statistic (z) using the formula above.

Once we have the test statistic, we can compare it to the critical value from the standard normal distribution at the specified significance level (α) to make a decision.

If the test statistic falls within the rejection region (i.e., it is beyond the critical value), we reject the null hypothesis. If it falls within the acceptance region (i.e., it is within the critical value), we fail to reject the null hypothesis.

Without knowing the actual counts of successes in Incubator A and Incubator B, we cannot perform the calculations to determine if the success ratios are significantly different.

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Answer:

\( - 4(x + 9) \\ - 4 \div - 4 = 1 \\ - 36 + - 4 = 9\)

Answer:

x\(\geq \\\)8

Answer:

C

Step-by-step explanation:

edge 21

Answer:

C or 3

Step-by-step explanation:

took the test

Answer:

A) 19

Step-by-step explanation:

prime number: Any whole number which is greater than 1 and has only two factors that is 1 and the number itself

A) 19 => 1 × 19 correct

B) 26 => 1 × 26, 2 × 13 incorrect

C) 48 => 1 × 48, 2 × 24, 3 × 16, 4 × 12, 6 × 8  incorrect

D) 52 => 1 × 52, 2 × 26, 4 × 13 incorrect

Step 1

Given;

Required; To write the equation in factored form

Step 2

Find the two factors that when added gives you x and when multiplied gives -20x²

Step 3

State the x-intercept

Hence, the x-intercepts are;

x=4

x=-5

Answer:

2.5i

Step-by-step explanation:

-5/2 = 2.5

+i = 2.5i

In a case whereby a ball is thrown downward from the top of a 140​-foot building with an initial velocity of 16 feet per second. the time the ball is thrown will it strike the​ ground at t = 2.5 or -3.5.

Height of building = 140 ft

Initial velocity, u = 16 ft/sec

the equation given is

h = -16t² -16t +140

h(t) = -16t² -16t +140

AT h(t) = 0 , We can divide by -2 and have

(8t² + 8t - 70) = 0

8t² + 8t - 70 = 0

Then if we solve with quadratic equation formula where  a=8, b=8, c=- 70 then the root will be -7/2 and 5/2 then  t = 2.5 or -3.5

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complete question;

A ball is thrown downward from the top of a 140​-foot building with an initial velocity of 16 feet per second. the height of the ball h in feet after t seconds is given by the equation h equals negative 16 t squared minus 16 t plus 140. how long after the ball is thrown will it strike the​ ground?

so from your last two problems I do not know if they were decimal points or multiplication but I viewed them as decimal points let me know if they are multiplication instead and I will fix it if I can. #1 is -3x - 7 #2 is 1/5x - 3 #3 is -3.2 B + 9 #4 is 6.5x + 1.7

Answer:

below

Step-by-step explanation:

combine like terms

1.) (−2x−5−3x)+(2x−2) =

-3x -7

2.) (2/5x−1)−(1/4x+2) =

(3/20x) - 3

3.) (−6. 5b+11) + (3. 3b−2) =

-3.2b + 9

4.) (−2. 6x+4. 2)−(3. 9x+2. 5) =

-6.5x + 1.7

Answer:

1. \(p \leq 10\) where \(p\) represents the total number of people.

2. \(p \geq 8\) where \(p\) represents the total number of people.

3. \(c \leq 60\) where \(c\) represents the cost of a pair of jeans.

4. \(p > 20\) where \(p\) represents the total number of people.

Step-by-step explanation:

Question 1 explanation: Since no more than 10 people are allowed in the elevator, that means 10 and under are allowed, so the inequality would be \(p \leq 10\).

Question 2 explanation: Since the tour bus needs at least 8 people to sign up to run, that means 8 and more people will allow the tour bus to run, so the inequality would be \(p \geq 8\)

Question 3 explanation: Since the most you will pay for a pair of jeans is $60, that means jeans costing $60 and under are fine, so the inequality would be \(c \leq 60\).

Question 4 explanation: Since over 20 people showed up to the party, that means there were more than 20 people at the party, so the inequality would be \(p > 20\).

Answer:

I could say the nearest tenth is 50 or 60

Step-by-step explanation:

I hope that helps ight

ignore I did area not perimeter my bad!

Answer:

I hope this helps....

Step-by-step explanation:

not quite sure if it's 100%correct.....or what ur looking 4..

aₙ = 5*(1/5)^(n - 1) is the explicit formula of the sequence.

What is Sequence and example ?

The recursive relation for a geometric sequence is

aₙ = aₙ₋₁*R

where R is the common ratio.

We could write this in a general form as:

aₙ = a₁*(R)^(n - 1)

where a₁ is the first term of the sequence.

In this case we know that:

R = 1/5

And that:

a₆ = 1/625

Then we can replace these values in the above relation to get:

a₆ = (1/625) = a₁*(1/5)^(6 - 1) = a₁*(1/5^5) = a₁*(1/3125)

1/625 = a1*(1/3125)

(3125/625) = a1 = 5

Then the formula will be:

aₙ = 5*(1/5)^(n - 1)

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To perform a translation of moving the equation x² + y² = 121 up 3 units, we modify the equation by adding 3 to the y-coordinate. The resulting equation is x² + (y + 3)² = 121.

To perform a translation of moving the equation x² + y² = 121 up 3 units, we need to modify the equation to reflect the new position. Since the translation is upward, we add 3 to the y-coordinate in the equation.

By adding 3 to the y-coordinate, the equation becomes x² + (y + 3)² = 121. This new equation represents the original equation shifted upward by 3 units.

The equation x² + (y + 3)² = 121 describes a circle centered at the origin with a radius of 11 units. The translation shifts this circle upward by 3 units, preserving its shape and size but changing its position in the coordinate plane.

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Answer

Number of students Total cost

0 $800

20 $1160

30 $1340

40 $1520

50 $1700

Explanation

Given

Cost per student = $18

The cost of the bus = $800

Step-by-step solution:

The total cost for food, admission, and the bus can be calculated using;

18a + b

Where a is the number of students and b is the cost of the bus.

For 30 students:

$18(30) + $800 = $540 + $800 = $1340

For 40 students:

$18(40) + $800 = $720 + $800 = $1520

For 50 students:

$18(50) + $800 = $900 + $800 = $1700

The probability of getting exactly 417 girls in 811 births is approximately 0.0668.

The probability of getting 417 or more girls in 811 births is approximately 0.1349.

a. The probability of getting exactly 417 girls in 811 births is not 1. The correct probability can be calculated using the binomial probability formula:

P(X = k) = (n choose k) * p^k * (1-p)^(n-k)

where n is the total number of births, k is the number of girls, p is the probability of a girl birth (assumed to be 0.5 for simplicity), and "n choose k" denotes the binomial coefficient, which is calculated as:

(n choose k) = n! / (k! * (n-k)!)

Plugging in the values, we have:

P(X = 417) = (811 choose 417) * 0.5^417 * 0.5^(811-417)

Using a calculator or software, we can simplify and evaluate this expression to find:

P(X = 417) ≈ 0.0668

So the probability of getting exactly 417 girls in 811 births is approximately 0.0668.

b. To find the probability of getting 417 or more girls in 811 births, we need to calculate the cumulative probability from 417 to 811:

P(X ≥ 417) = P(X = 417) + P(X = 418) + ... + P(X = 811)

We can use software or a calculator to calculate this sum, or we can use the complement rule:

P(X ≥ 417) = 1 - P(X < 417)

To calculate P(X < 417), we can use the cumulative distribution function (CDF) of the binomial distribution:

P(X < 417) = sum(i=0 to 416) (811 choose i) * 0.5^i * 0.5^(811-i)

Again, using software or a calculator, we can evaluate this expression to find:

P(X < 417) ≈ 0.8651

So the probability of getting 417 or more girls in 811 births is:

P(X ≥ 417) = 1 - P(X < 417) ≈ 1 - 0.8651 ≈ 0.1349

Rounding to four decimal places, the probability of getting 417 or more girls in 811 births is approximately 0.1349.

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