Solve the problem. An airplane climbs at an angle of 11 ∘
at an average speed of 420mph. How long will it take for the pane tio rank its cruising altitude of 6.5mi ? Round to the nearest minute. 53 min 5 min 4 min 1 min

Answer:

Step-by-step explanation:

length=1 m

base of triangle=10 m

height=5m

volume= 1/2×10×5×1=25 m cube.

slant height l=√(5²+5²)=√50=5√2

slant surface area=2[5√2×1]=10√2

area of front and back=2×1/2(10×5)=50

total surface area=50+10√2≈50+14.14≈64.14 m²

Answer:

15.8 :D

Step-by-step explanation:

Pythagorean theorem: a^2 + b^2 = c^2

Now lets solve!!

9^2 + 13^2 = c^2

81 + 169 = c^2

250 = c^2

Now we need to find the square root!!

\(\sqrt{250}\) = 15.8 :)

Have an amazing day!!

Please rate and mark brainliest!!!

Answer:

There are 2 iron (Fe) atoms, 3 oxygen (O) atoms, and 3 carbon (C) atoms on both the reactant and product side of the equation. Therefore, the equation is balanced.

Answer:

There is 2 Iron(Fe) atoms , 6 Oxygen atoms and 3 carbon atom on both side so this equation is balanced I believed.

Answer:

0.75

Step-by-step explanation:

Collecting data on 83,359 grade-point averages would be a significant undertaking and a 99% confidence level, especially if the data had to be collected in a short amount of time or if there were limited resources available for data collection.

To determine the sample size needed to estimate the population mean within a certain margin of error, we can use the formula:

\(n = (Z^2 * sigma^2) / E^2\)

where n is the sample size, Z is the Z-score for the desired confidence level (in this case, 2.576 for a 99% confidence level), sigma is the population standard deviation (in this case, estimated as 1.25 using the range rule of thumb), and E is the desired margin of error (in this case, 0.01).

Plugging in the values, we get:

\(n = (2.576^2 * 1.25^2) / 0.01^2 = 83,358.08\)

So we would need a sample size of at least 83,359 to estimate the population mean with a margin of error of 0.01 and a 99% confidence level.

However, this sample size may not be practical depending on the resources available. Collecting data on 83,359 grade-point averages would be a significant undertaking, especially if the data had to be collected in a short amount of time or if there were limited resources available for data collection.

In practice, researchers often use statistical software to calculate sample sizes based on the desired margin of error, confidence level, and population standard deviation. This allows them to determine a more realistic sample size based on the specific context of their study.

In summary, while the formula for determining sample size can provide an estimate of the number of observations needed to estimate the population mean with a certain level of precision, other factors such as the availability of resources must also be considered when determining a practical sample size.

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Answer:

1.   Irrational   2.   Rational

Step-by-step explanation:

\(\sqrt[3]{81}\) = \(\sqrt[3]{3^4}\)

= \(\sqrt[3]{3^3\cdot 3}\) = \(\sqrt[3]{3^3}\) \(\sqrt[3]{3}\)

= 3 \(\sqrt[3]{3}\)  OR in decimal form which is 4.32674...

4.32674... is an irrational number because it cannot be expressed as a ratio of two integers such as in m/n form.

Examples of irrational : \(\pi\), 4.32674... and so on

\(\sqrt[3]{-64}\) =  - \(\sqrt[3]{64}\)

= - \(\sqrt[3]{4^3}\) = -4

-4 is a rational number because it can be written as a fraction same thing that I said in number 1.

Examples of rational : -4 = -4/1 , 8/9 and so on

Hope this helps!

The probability of committing when at least one type I error at a significance level (exactly) 0.01 at m = 11 is equivalent to 0.1047.

Given that:

The hypotheses are based on independent samples with each at a 0.01 level of significance.

We know that:

P (at least one type I error is committed) = 1 - [P (No error -  type I error is committed)]^m

P (at least one type I error is committed) = 1 - [(1 - 0.01)]^11

P (at least one type I error is committed) = 1 - [0.99]^11

P (at least one type I error is committed) = 1 - 0.8953

P (at least one type I error is committed) = 0.1047

So, the probability of committing when at least one type I error is equivalent to 0.1047.

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By applying the simple concept of algebra, the equation showing the number of Kenny's baseball cards (b) is b = 82 + 159. So it can be concluded that the number of Kenny's baseball cards is 241 cards.

The use of algebra in everyday life.

Algebra is a branch of mathematics that uses numbers, symbols, or letters to solve math problems. In everyday life, algebra is often used, starting from simple mathematical operations, to financial planning, calculating time/mileage, and so on.

In the above questions, we can take some notes as follows:

Baseball cards sold (x) = 82 cards.

Remaining baseball cards (y) = 159 cards.

The number of baseball cards owned by Kenny (b):

b = x + y

  = 159 + 82

  = 241 cards

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The best description of the transformation for the image being projected on the retina is A. A dilation with a scale factor between 0 and - 1 and center at the nodal point.

An mage is inverted and reversed as it passes through the lens of the eye, and is then projected upside down and reversed onto the retina. The process of transforming the image is called "rectification."

In mathematical terms, a dilation would have taken place because the object was shrunken by the eyes at the nodal point. When an object shrinks , then the scale factor is between 0 and 1 but because this image is inverted, the scale factor is between 0 and - 1.

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The quadratic function that best fit the given data is y = 2x² - 5/2x - 8.

In algebra, quadratic function is defined as a function in the second degree or power. It can be expressed as y = f(x) = ax² + b x + c, where a, b, and c are constants.

Using only three points from the given data, we can determine the quadratic equation that fits the data.

Let P1 = (-2 , 5)

P2 = (0 , -8)

P3 = (2 , -5)

Substitute the points in the expression f(x) = y = ax² + b x + c.

5 = a(-2)² + b(-2) + c     ⇒     5 = 4a - 2b + c     (equation 1)

-8 = a(0)² + b(0) + c     ⇒     -8 = c     (equation 2)

-5 = a(2)² + b(2) + c     ⇒     -5 = 4a + 2b + c     (equation 3)

Substitute equation 2 in equation 1 and 3.

5 = 4a - 2b + -8     ⇒     13 = 4a - 2b     (equation 4)

-5 = 4a + 2b + -8     ⇒     3 = 4a + 2b     (equation 5)

13 = 4a - 2b     (equation 4)

-(3 = 4a + 2b)    (equation 5)

10 =       -4b

b = -5/2

Substitute the value of b in equation 4.

13 = 4a - 2(-5/2)

4a = 13 - 5

a = 2

If a = 2, b = -5/2 and c = -8, then the quadratic equation should be y = 2x² - 5/2x - 8.

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Answer:

The point of intersection between 2x+3y=12 and 2x-y=4 is (3,2)

Step-by-step explanation:

When the function f is a one to one function, (a) the answer is f^(-1)(7) = 5 if f(5)= 7 and (b) the answer is f(-6) = -5, if f^(-1)(-5)=-6.

(a) If f(5)=7, find f^(-1)(7):

Given that:

f is a one-to-one function

and f(5) = 7

We need to find f^-1(7).

Definition of Inverse:

f^-1 (7) = x if and only if f(x) = 7.

Since we know that f(5) = 7,

therefore f^-1 (7) = 5 (using the definition of inverse).

Therefore, the answer is f^(-1)(7) = 5.

(b) If f^(-1)(-5)=-6, find f(-6):

Again we are given that,

f is a one-to-one function

and f^-1 (-5) = -6.

We need to find f(-6).

Definition of Inverse:

f^-1 (-5) = x if and only if f(x) = -5.

Since we know that f^-1 (-5) = -6,

therefore f(-6) = -5 (using the definition of inverse).

Therefore, the answer is f(-6) = -5.

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The accretion disk provides a new source of energy to the white dwarf through the release of gravitational potential energy and frictional forces, leading to the emission of detectable radiation that can be observed from Earth.

The correct explanation of how the accretion disk provides a white dwarf with a new source of energy that we can detect from Earth is as follows:

When a white dwarf is in a binary system with a companion star, such as a red giant or main-sequence star, it can accrete material from the companion star. As the companion star evolves, it expands and transfers material onto the white dwarf due to gravitational interactions.

The accreted material forms an accretion disk around the white dwarf. As the material spirals inwards towards the white dwarf, it gains gravitational potential energy, which is converted into thermal energy through frictional forces and the release of gravitational potential energy. This process generates intense heat and causes the accretion disk to emit radiation across a wide range of wavelengths, including visible light.

The energy emitted by the accretion disk can be detected from Earth as the disk radiates significant amounts of energy, making the white dwarf appear brighter. Observations of this radiation across various wavelengths, including optical and X-ray, allow astronomers to study the properties of the accretion disk and the white dwarf's interaction with its companion star.

In summary, the accretion disk provides a new source of energy to the white dwarf through the release of gravitational potential energy and frictional forces, leading to the emission of detectable radiation that can be observed from Earth.

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Answer:

To my knowledge of congruency, I would say the answer is A,

Step-by-step explanation:

Hope this helped!!!

Answer:

$60

Step-by-step explanation:

I=PRT

2000×.15×2=60

Answer:

8 m

Step-by-step explanation:

Diagonal: Hypotenuse

Let the hypotenuse (diagonal) be c, Stafford street be a, and let Silvergrove Avenue be b.

Formula: a^2 + b^2 = c^2

Lets plug them in!

6^2 + b^2 = 10^2

36 + b^2 = 100

b^2= 100 - 36

b^2 = 64

64 is the exponential value of b, meaning to lower it to its original terms, we apply the opposite of squaring. Which is finding the square root.

\(\sqrt{64}\) = 8

Therefore Silvergrove Avenue is 8 m.

Answer:

8

Step-by-step explanation:

Pythagorean Theorem: a^2 + b^2 = c^2

c (the hypotenuse, or longest leg) = 10, a or b = 6

6^2 + b^2 = 10^2

36 + b^2 = 100

b^2 = 64

b = 8

Answer:

24.73cm^3

Step-by-step explanation:

The price of organic sugar was decreased by 25%, which means the new price is 75% of the original price. To find the new price of the sugar, we can multiply the original price by 0.75:

New price = $4 * 0.75 = $3

Therefore, the new price of the organic sugar is $3 per pound.

The mean hourly snowfall is 10/3 cm/hour or 3.33 cm/hr.

What do you mean by snowfall?

Snowfall is the term for precipitation that takes the shape of snow-like solid particulates. Snowfall happens at mean sea level in high-latitude, temperate locations while it happens higher than the snowline height in equatorial areas.

Given,

At 4 P.M the total snowfall is 3 centimetres.

AT 7 P.M, the total snowfall is 13 centimetres.

Duration of time = (7-4) = 3 hours

Snowfall changes= (13-3)= 10 centimeters

We know that,

Mean hourly snowfall= Snowfall changes/ duration of time

= 10/3 cm/hour

≅3.33 cm/hr

The mean hourly snowfall is 10/3 cm/hour or 3.33 cm/hr

Hence the correct answer is 10/3 cm/hour or 3.33 cm/hr

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look at my glorious answer mah boi

True. Strings can be concatenated (joined together) using the plus sign in programming languages like Python, JavaScript, and Java.

In most programming languages, strings can be concatenated or added together using the "+" operator. When the "+" operator is used with two string operands, it combines the two strings into a single string by appending the second string to the end of the first string.

It's important to note that the "+" operator behaves differently when used with other types of operands, such as numbers or lists, and can perform addition or concatenation depending on the context.

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Answer:

162 m2

Step-by-step explanation:

Hope this helped, leave a comment if you need anything else.

Using an exponential function, it is found that the inequalities that represents the scenario is:

\(y \geq 1045(1.05)^x\)

\(x \geq 0\)

An increasing exponential function is modeled by:

\(A(t) = A(0)(1 + r)^t\)

In which:

In this problem:

We want a new daily caloric intake of at least y calories, hence:

\(y \geq 1045(1.05)^x\)

The number of days is at least 0, hence:

\(x \geq 0\)

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Answer:

13x + 3

Step-by-step explanation:

9x + 4x + 8 -5

13x + 3

Just multiply (x + 2) by 4

and add simply.

I hope now you got it.

The system of equations can be used to find the roots of the considered  equation is y = 4+x^2 and y= x^3 + 2 + x

We do same operations on both the sides so that equality of both expressions doesn't get disturbed. Solving equations generally means finding the values of the variables used in it for which the considered equation is true.

Sometimes we can find such value, and sometimes it is not possible at all, or sometimes, there are infinite number of solutions.

For the given case, we are given with the equation \(4+x^2 = x^3 + 2 + x\)

We can take two equations as:

\(y = 4+x^2 \\y= x^3 + 2 + x\)

And when we will try to solve this system of equation, we will end up substituting the value of y in terms of x, and therefore, ending up on the same equation \(4+x^2 = x^3 + 2 + x\)

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Answer:

D

y=4x^2

y=x^3+2x

Step-by-step explanation:

im trying to pass just like yall, Good luck to all