PLEASE HELP I WILL GIVE YOU BRAINLIST

Answer:

Step-by-step explanation:

See image

Answer:

FH=22

Step-by-step explanation:

FGH is all one line, with FG being 15 units long and GH being 7 units long.

The distance from F to H is the two values added together.

FG+GH=FH

15+7=22

FH=22

There are several reasons why a couple percent error may occur when calculating roots, even if both roots can easily be represented with a float.

These reasons can include rounding errors, numerical instability, algorithm limitations, machine precision, and incorrect input data or model. To minimize the error, it is important to use a stable and accurate algorithm, and to ensure that the input data and model are correct.

The error in the calculation of one of the roots can be due to several reasons, such as:

Rounding errors: In many cases, when performing calculations with floating-point numbers, intermediate results are rounded to a certain number of decimal places. This can result in a small error that accumulates throughout the calculation and leads to an incorrect answer.

Numerical instability: Some mathematical operations, such as division and square roots, can lead to loss of precision or numerical instability. This can result in an incorrect answer, even if the input numbers can be represented as floating-point numbers.

Algorithm limitations: The algorithm used to calculate the roots may have limitations that result in an error, even if the input numbers can be represented as floating-point numbers. For example, some algorithms may not converge to the correct root, or they may converge very slowly.

Machine precision: The precision of the computer used to perform the calculation can also play a role in the error. For example, if the computer uses single-precision floating-point numbers instead of double-precision floating-point numbers, the error will be larger.

Model or input data error: The error could also be due to incorrect input data or an incorrect model. For example, if the mathematical model used to calculate the roots is not an accurate representation of the underlying system, the error will be larger.

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Answer:

565.49 cm2

Step-by-step explanation:

The area of a circle is given by:

Area = pi * r^2

And the whole area represents a central angle of 2pi.

Then, to find the area of this sector, we just need to use a rule of three:

area of pi * r^2 -> central angle of 2pi

area of x -> central angle of 8pi/5

x * 2pi = pi * r^2 * 8pi/5

2x = r^2 * 8pi/5

x = r^2 * 4pi/5 = 15^2 * 4pi/5 = 565.49 cm2

Answer:180pi cm^2

Step-by-step explanation:

Cuz I got it right

The correct option to calculate the total amount payable to suppliers whose materials meet the specifications is: SUMIF(B2:87, "Yes", C2:C7)

The function SUMIF is one that calculates the sum of the values within a certain range (C2:C7) provided that a certain condition is met (B2:B7 reads as "Yes").

By using the SUMIF function and setting specific ranges and criteria, the formula will add up the values within the C2:C7 range exclusively for suppliers whose materials align with the set specifications (which are marked as "Yes" in corresponding cells within B2:B7).

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The sole inference whereby the total amount of figures on the cube will be divisible by three.

The cube’s faces are labeled as A, B, C, D, E, and F.

It’s apparent that pairs of opposite sides combine to equal the same value: namely A+F=S, B+E=S, and C+D=S.

Thus, determining the summation of all values entails adding each group of pairs together: (A+F) + (B+E) + (C+D) = 3S.

Unless additional information is provided, the sole inference whereby the total amount of figures on the cube will be divisible by three.

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12. MATLAB code: `f = (-3*t.^2 + 5*t + 20).*(t < 0) + (3*t.^2 + 5*t).*(t >= 0)`

13. MATLAB function: `function random_values = UniGen(n, a, b); random_values = (b - a) * rand(n, 1) + a; end`

MATLAB code to calculate f(t) using the given equation:

t = -9:0.5:9; % Generate values of t from -9 to 9 in steps of 0.5

f = zeros(size(t)); % Initialize f(t) vector

for i = 1:numel(t)

   if t(i) < 0

       f(i) = -3*t(i)^2 + 5*t(i) + 20;

   else

       f(i) = 3*t(i)^2 + 5*t(i);

   end

end

% Display the results

disp('t    f(t)');

disp('--------');

disp([t' f']);

```

This code generates values of `t` from -9 to 9 in steps of 0.5 and calculates `f(t)` based on the given equation. The results are displayed in a tabular format showing the corresponding values of `t` and `f(t)`.

13. MATLAB function UniGen to generate uniformly distributed random values:

function random_values = UniGen(n, a, b)

   % n: Number of random values to generate

   % a: Start of the interval

   % b: End of the interval

   random_values = (b - a) * rand(n, 1) + a;

end

This MATLAB function named `UniGen` generates `n` random values that are uniformly distributed on the interval `[a, b]`. It utilizes the `rand` function to generate random values between 0 and 1, which are then scaled and shifted to fit within the specified interval `[a, b]`. The generated random values are returned as a column vector.

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Answer:

TUNNEL:

f(x) = -2/4.9  \(x^{2}\)  + 9.8

TRUCK:

Width (m) < 9.8

Height (m) <  -2/4.9 ( \(Width^{2}\) /4 - \(4.9^{2}\) )

Step-by-step explanation:

Please see attachment

If the maximum height of the tunnel is the same as its maximum width, 9.8 meters, The quadratic model to represent the tunnel will be f(x)= (-2/4.9)x²+9.8.

Any function of the form\(\rm f(x) =ax^2+bx+c\) where x is variable and a, b, and c are any real numbers where a ≠ 0 is called a quadratic function.

It is given that, If the maximum height of the tunnel is the same as its maximum width, 9.8 meters.

We have to determine a quadratic model to represent the tunnel.

The quadratic function is formed as,

f(x) =K(x-x₁)(x-x₂)

x₁=width/2

x₁=9.8/2 = 4.9

x₂= -x₁ = -4.9

Substitute the obtained value as,

f(x) = K(x-4.9)(x-(-4.9))

f(x) =K(x²-4.9²)

f(0)=9.8

The value of K is obtained as a result,

K=-2×4.9/(4.9)²

K= -2/4.9

Substitute the value of K as,

f(x) = -2/4.9(x²-4.9²)

f(x) = (-2/4.9)x²+2×4.9

f(x)= (-2/4.9)x²+9.8

Thus, if the maximum height of the tunnel is the same as its maximum width, 9.8 meters, The quadratic model to represent the tunnel will be f(x)= (-2/4.9)x²+9.8.

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Answer:

3. If that doesn't work, try 1/3

Step-by-step explanation:

Figure A has a length of 9 and figure B has a length of 3. 9 divided by 3 is 3.

To find an invertible matrix U such that UA is equal to the reduced row-echelon form of matrix A, the given matrix A and its reduced row-echelon form must be examined.

To find an invertible matrix U such that UA is equal to the reduced row-echelon form of matrix A:

Given matrix A:

A = [[-1, k, 3],

[-1, 3, 3],

[-9, -1, 4]]

Perform row operations to obtain the reduced row-echelon form:

R2 = R2 + R1

R3 = R3 - 9R1

Updated matrix:

A = [[-1, k, 3],

[0, k-2, 6],

[0, 9k+8, -23]]

Perform additional row operations to eliminate the entry in the third row and second column:

R3 = (9k+8)/(k-2) * R2 - R3

Final reduced row-echelon form:

A = [[-1, k, 3],

[0, k-2, 6],

[0, 0, 0]]

The matrix A is in reduced row-echelon form, and the entries in the third column are all zeros. This means that A is invertible for all values of k. There are no restrictions on the value of k for matrix A to be invertible.

To make matrix A invertible, the determinant det(A) must be non-zero. Therefore, the condition on k that will make matrix A invertible is:

k ≠ 72

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(a) Null hypothesis: mean life of refrigerators <= 15 years, alternative hypothesis: mean life of refrigerators > 15 years. (b) Null hypothesis: mean life of refrigerators >= 15 years, alternative hypothesis: mean life of refrigerators < 15 years.

What is Null hypothesis?

Null hypothesis (H0) is a statistical hypothesis that states there is no significant difference or relationship between the population parameter and the sample statistic being tested, or no effect of the treatment or intervention being evaluated. It is usually the hypothesis that is initially assumed to be true before the statistical test or experiment is conducted, and is compared against the alternative hypothesis to determine whether the results are statistically significant.

(a) If you represent the manufacturer and want to support the claim that the mean life of its refrigerators is greater than 15 years, the null hypothesis would be:

Null hypothesis (H0): The mean life of the refrigerators is less than or equal to 15 years.

Alternative hypothesis (Ha): The mean life of the refrigerators is greater than 15 years.

(b) If you represent the competitor and want to reject the claim that the mean life of the manufacturer's refrigerators is greater than 15 years, the null hypothesis would be:

Null hypothesis (H0): The mean life of the refrigerators is equal to or greater than 15 years.

Alternative hypothesis (Ha): The mean life of the refrigerators is less than 15 years.

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The x and y components of the force are -3.10 x 10⁻⁵ N and 2.82 x 10⁻⁵ N, respectively.

The magnitude of the force is 3.96 x 10⁻⁵ N, and the direction of the force is -41.6 degrees.

Now, we can use Coulomb's law, which tells us that the force between two charges is given by:

F = k (q₁ q₂) / r²

where F is the force, k is Coulomb's constant (9.0 x 10⁹ N*m²/C²), q₁ and q₂ are the charges, and r is the distance between the two charges.

For the first charge at the origin and the third charge at (2.65 cm, 4.50 cm), the distance between them is:

r₁ = √((2.65 cm)² + (4.50 cm)²) = 5.23 cm

The direction of the force is along the line connecting the two charges and can be found using trigonometry:

θ₁ = tan⁻¹ (4.50 cm / 2.65 cm) = 59.0 degrees

The force exerted on the third charge by the first charge is then:

F₁ = (9.0 x 10⁹ Nm²/C²) (-3.10 nC) × (5.00 nC) / (5.23 cm)²

= -6.19 x 10⁻⁵ N

To find the x and y components of this force, we can use:

Fx1 = F₁ * cos(theta1) = -3.10 x 10⁻⁵ N

Fy1 = F₁ * sin(theta1) = -4.99 x 10⁻⁵ N

For the second charge on the y-axis and the third charge at (2.65 cm, 4.50 cm), the distance between them is:

r₂ = sqrt((2.65 cm)² + (4.50 cm - 4.50 cm)²) = 2.65 cm

The direction of the force is along the y-axis, so there is no x component. The y component of the force is:

Fy₂ = (9.0 x 10⁹ Nm²/C²) (1.90 nC) × (5.00 nC) / (2.65 cm)²

= 7.81 x 10⁻⁵ N

The total force on the third charge is the sum of the forces from the first and second charges:

Fx = Fx₁ + 0 = -3.10 x 10⁻⁵ N

Fy = Fy₁ + Fy₂ = 2.82 x 10⁻⁵ N

The magnitude of the force is:

F = √(Fx² + Fy²) = 3.96 x 10⁻⁵ N

The direction of the force is:

theta = tan⁻¹(Fy / Fx) = -41.6 degrees

(measured counterclockwise from the positive x-axis)

Therefore, the x and y components of the force are -3.10 x 10⁻⁵ N and 2.82 x 10⁻⁵ N, respectively.

The magnitude of the force is 3.96 x 10⁻⁵ N, and the direction of the force is -41.6 degrees.

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Answer:

i cant answer this because of my school computer but its simple

Step-by-step explanation:

Answer: x & y

              0 & -3

              1  & 5

slope : 8

y intercept : -3

A grab bag contains 2 football cards and 8 basketball cards. The correct answer is option (d)

(Redirected from American Football Card) An American football card is a type of collectible trading card typically printed on paper stock or card stock that features one or more American football players or other related sports figures.[1] These cards are most often found in the United States and other countries where the sport is popular.[2]

A basketball card is a type of trading card relating to basketball, usually printed on cardboard, silk, or plastic.[1] These cards feature one or more players of the National Basketball Association, National Collegiate Athletic Association, Olympic basketball, Women's National Basketball Association, Women's Professional Basketball League, or some other basketball related theme.[2]

Some notable producing companies include Panini Group (present days), Bowman Gum and Topps (in early days).[3]

8 football, 2 basketball total of 10

P(1st pick is football) = 8/10 which reduces to 4/5

replace

P(2nd pick is basketball) = 2/10 which reduces to 1/5

P (both) = 4/5 * 1/5 = 4/25 = 0.16

Therefore, A grab bag contains 2 football cards and 8 basketball cards. The correct answer is option (d)

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Answer:

8 is the atomic number

Step-by-step explanation:

Atomic number = 8  (meaning it has 8 protons in its nucleus)

Atomic weight = 15.999

O = symbol for oxygen

Answer: 4x + 8

Step-by-step explanation:

Answer:

4(x+2)

Step-by-step explanation:

Answer: 25

Step-by-step explanation:

y:x = 15:3 = 5:1

If x is 5, then y = 25

Answer:

cos203° = - p

Step-by-step explanation:

Using the addition formula for cosine

cos(a + b) = cosacosb - sinasinb

cos203°

= cos(180 + 23)

= cos180°cos23° - sin180°sin23°

= cos180°. p - 0

= - 1 . p

= - p

Answer:

Federcio's age possible values are those that are greater than 14 i.e 15, 16, 17 and so on

Step-by-step explanation:

Let Federico's age = x

Three times the difference of Federico’s age, and 4 means:

3(x - 4)

Increased by 7:

3(x - 4) + 7

Is greater than 37:

3(x - 4) + 7 > 37

Solving the inequality:

3x - 12 + 7 > 37

3x - 5 > 37

3x > 37 + 5

3x > 42

x >42/3

x > 14

Federcio's age possible values are those that are greater than 14

The equation of the line that passes through the point (3,5) and has a slope of -1/3 will be x + 3y = 18.

Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.

Let's suppose our linear equation is y = mx + c

Where m is the slope while c is the y-intercept.

Now,

m = -1/3

y = (-1/3)x + c

Putting (3,5)

5 = -3/3 + c ⇒ c = 6

Therefore,

y = -x/3 + 6

3y = -x + 18

x + 3y = 18

Hence "The equation of the line that passes through the point (3,5) and has a slope of -1/3 will be x + 3y = 18".

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Answer:

10

Step-by-step explanation:

9x10=90 then add the shipping and get 100

Metric System is a decimal system of measurement that is based on the meter, kilogram, and second and is used in most countries around the world. It is also known as the International System of Units (SI).

The Metric System is the most common measuring system used in the world today. It is a decimal system based on the meter, kilogram, and second and is officially known as the International System of Units (SI). This system was initially developed in France in the late 18th century and is now used in most countries around the world. The Metric System is based on powers of 10 and each unit is related to the next unit by a factor of 10. For example, a kilometer is equal to 1000 meters, a milliliter is equal to 0.001 liters, and a centimeter is equal to 0.01 meters. The Metric System is used to measure length, area, mass, weight, temperature, and volume. It is used in many different industries and applications including science, engineering, medicine, and agriculture. The Metric System has become the international standard for scientific measurements and is accepted by most countries as the preferred system of measurement. The Metric System is also easier for students to learn and use than other systems of measurement.

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Answer:

18 units

Step-by-step explanation:

PQ= 7 units

QR = 6 units

RS = 5 units

its really not that hard..

Both the white longhair female cat (w/w; l/l) and the black shorthair male cat (w/w; l/l) are homozygous for the white coat color (w/w) and the longhair trait (l/l).

When these cats mate, all the kittens will inherit one allele for each trait from each parent. Since both parents are homozygous for the white coat color (w/w), all kittens will also inherit the white coat color gene from both parents, resulting in white kittens (w/w). Similarly, both parents are homozygous for the longhair trait (l/l), so all kittens will inherit the longhair allele from both parents, making them longhair kittens (l/l).

In conclusion, all 12 kittens will have a white coat color and long hair, just like their parents. They will look like white longhair kittens, with the genotype (w/w; l/l) for both traits. It is important to remember that being a responsible pet owner includes spaying or neutering your pets to prevent unwanted litters, and finding loving homes for any kittens or puppies that may be born.

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The values of x in the given equation, (x-7)^2=36, are x = 13 and x = 1. The correct options are the first and second options - x = 13 and x = 1

From the question, we are to determine the values of x in the given equation. The given equation is:

(x-7)^2=36

To solve the equation (x-7)^2=36, we can take the square root of both sides and solve for x:

(x-7)^2 = 36

Taking the square root of both sides:

x - 7 = ±6

Adding 7 to both sides:

x = 7 ± 6

So we get two possible values of x:

x = 7 + 6 or x = 7 - 6

x = 13 or x = 1

Hence, the correct values of x are:

x = 13

x = 1

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The solution of the DTDS is xn = (0.63)^n * 41 grams, where n represents time in hours.

a) The updating function f(x) for the discrete time dynamical system (DTDS) can be derived from the given information that the body eliminates 37% of the alcohol present in the body per hour.

Since 37% of the alcohol is eliminated, the amount remaining after one hour can be calculated by subtracting 37% of the current amount from the current amount. This can be expressed as:

f(x) = x - 0.37x

Simplifying the equation:

f(x) = 0.63x

b) The initial condition for the DTDS is given as Peter having 41 grams of alcohol in his body after consuming three alcoholic drinks. Therefore, the initial condition is:

x0 = 41 grams

c) To find the solution of the DTDS with the given initial condition, we can use the updating function f(x) and iterate it over time.

For n hours, the solution is given by:

xn = f^n(x0)

Applying the updating function f(x) repeatedly for n times:

xn = f(f(f(...f(x0))))

In this case, since the function f(x) is f(x) = 0.63x, the solution can be written as:

xn = (0.63)^n * x0

Substituting the initial condition x0 = 41 grams, the solution becomes:

xn = (0.63)^n * 41 grams

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Answer:

5

Step-by-step explanation: