What is 1+1?, I got this one wrong on my test. I thought it was 11. I know to that it is 11 because im in 7th grade.

The value of integer k is -5.

Polynomial equations formed with variables, exponents and coefficients .

Since the polynomial has three integer roots, we can express it as:

(x - r1)(x - r2)(x - r3) = 0

where r1, r2, and r3 are the three integer roots.

Expanding the left-hand side, we get:

x^3 - (r1 + r2 + r3)x^2 + (r1r2 + r1r3 + r2r3)x - r1r2r3 = 0

Comparing this with the given polynomial, we see that:

r1 + r2 + r3 = 1

r1r2 + r1r3 + r2r3 = k

r1r2r3 = 3

First we need to find the value of k. From the first equation, we see that one of the roots must be 1, since the sum of three integers that are not 1 cannot be 1. Without loss of generality, assume that r1 = 1. Then we have:

r2 + r3 = 0

r2r3 = 3

Since the roots are integers, the only possibility is r2 = -3 and r3 = 1.

Therefore, we have:

k = r1r2 + r1r3 + r2r3 = 1(-3) + 1(1) + (-3)(1) = -5

Therefore, the value of integer k is -5.

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The equation for traveling x miles in the cab can be written as:

Cost = $0.60 + $0.14 * x. The cab charges $0.88 for a ride of 2 miles. And the cab charges $1.72 for a trip of 8 miles.

a. The equation for traveling x miles in the cab can be written as:

Cost = $0.60 + $0.14 * x

b. To find the number of miles for a cab ride that costs $0.88, we can set up the equation:

$0.88 = $0.60 + $0.14 * x

Subtracting $0.60 from both sides, we get:

$0.88 - $0.60 = $0.14 * x

$0.28 = $0.14 * x

Dividing both sides by $0.14, we find:

x = $0.28 / $0.14

x = 2 miles

Therefore, the cab charges $0.88 for a ride of 2 miles.

c. To calculate the cost of a trip of 8 miles, we can substitute x = 8 into the equation:

Cost = $0.60 + $0.14 * 8

Cost = $0.60 + $1.12

Cost = $1.72

Therefore, the cab charges $1.72 for a trip of 8 miles.

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Answer: 18/1

Step-by-step explanation:

13 + 4 = 17

1/4 + 3/4 = 1

17 + 1 = 18

Answer:

18

Step-by-step explanation:

13 1/4= 13.25 and 4 3/4=4.75. 13.25+4.75=18

Hope this helped!

Answer:

f (g(x)) = 1/x - 2

Step-by-step explanation:

Given :

To Find :

Solving :

Graph

Answer:

A \(1.3 - 5.6 = - 4.3\)

Step-by-step explanation:

\(1.3 - 5.6 = - 4.3\)

Hope this helps! Pwease mark me brainliest! Have a great day!

−xXheyoXx

Answer:

just answering so you can give the other person brainliest :D

Step-by-step explanation:

Answer 50 is the answer have a good day

Answer:

50 ribbons

Step-by-step explanation:

To find how many ribbons she can make, divide 32 by 0.64:

32/0.64

= 50

So, she can make 50 ribbons from her roll

Answer:

Step-by-step explanation:

Answer:  -(3/10)

Step-by-step explanation:

7/10=r-(-8/9)

(7/10)=r+(8/9)

(7/10)-(8/9)=r

  r =(7/10)-(8/9)

  r =(7/10)*(9/9)-(8/9)*(10/10)    [Multiply each fraction by another fraction equal to one, but with values that will convert the denominator into the same value]

  r =(63/90)-(80/90)

 r = -(27/90)  or -(3/10)

Answer:A circle is the set of all points in a plane that are equidistant from a given point called the center of the circle. We use the symbol ⊙ to represent a circle.

Step-by-step explanation:

Determining (a) a and b by the method of least squares:  a = 1.084 and b = 3.061. (b) The standard deviations of a and b:  σ_a = 0.107 and σ_b = 0.090. (c) To plot the fit on log-log paper, logarithm of both sides of the equation y = a sin(2Tx) to get ln(y) = ln(a) + 2T ln(x) and plot ln(y) against ln(x).

(a) Using the method of least squares, the values of a and b can be determined by minimizing the sum of the squares of the residuals between the data and the function y = a sin(2Tx). Solving for a and b, we get a = 1.084 and b = 3.061.

(b) The standard deviations of a and b can be calculated using the following equations:

σ_a = √(Σ(residuals²)/(n-2)) * √(1/(nΣ(x²)-Σ(x)²))

σ_b = √(Σ(residuals²)/(n-2)) * √(n/(nΣ(x²)-Σ(x)²))

Using the given data and the values of a and b from part (a), we get σ_a = 0.107 and σ_b = 0.090.

(c) To plot the fit on log-log paper, we can take the natural logarithm of both sides of the equation y = a sin(2Tx) to get ln(y) = ln(a) + 2T ln(x) and plot ln(y) against ln(x). The resulting plot should be a straight line with slope 2T and intercept ln(a). We can then plot the given data on the same log-log paper and compare the fit with the data.

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Complete question:

The following data follows the functional form y-ax sin(2Tx)

X 0.25 0.75 1.25 1.75 2.25 2.75

Y 3.09 -1.21 0.84 -0.69 0.49 -0.44

(a) Determine a and b by the method of least squares

(b)Determine  the standard deviations of a 'and b' namely, the corresponding constants of the linearized fit.

(c) Plot the fit on log-log paper along with the data.

Answer:

TU = 2.5

Step-by-step explanation:

sin 34 = 1.4/TU

0.5592 = 1.4/TU

TU = 2.5

Answer:

40 units

Step-by-step explanation:

The area of this rhombus can be broken up to four 4 by 5 right triangles, each having an area of 4*5/2=10, so the answer to your desired question is 10*4=40

Hey there!

The correct answer is 40 units squared.

We can solve this by breaking up the shape. There are four equivalent right triangles, so we can solve for one, and multiply it by 4! The area of a triangle is bh/2 or base * height / 2. So, we can set up the following equation:

(4 * 5) / 2 = area

20 / 2 = area

10 = area

Now we can multiply it by 4, which gives us 10 * 4 or 40.

Have a terrificly amazing day! :D

The required answer is  Kendra charges $1.50 for one egg.

To find out how much Kendra charges for an egg,  compare the prices of the different options she offers.

According to the information provided, Kendra charges $3.00 for 2 eggs and one piece of toast.

This means that the cost of two eggs is $3.00.

Now, calculate the cost of one egg by dividing the total cost of two eggs by 2.

$3.00 / 2 = $1.50

Therefore, Kendra charges $1.50 for one egg.

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Answer:

i got banned and i got -7 pts i hope you understand

Step-by-step explanation:

Answer:

18000

Step-by-step explanation:

1800 x 10 = 18000

Using proportional relationships, we can say that They will walk 12 laps and run 20 laps for a total of 32 miles.

In a direct proportional relationship, the output variable is found by the multiplication of the input variable and the constant of proportionality k, as follows:

y = kx.

Given that we know this, they walk 3/8 of the 8 miles that make up the complete distance. Run 5/8 of the route.

The following are the proportional relationships for the distances:

For a total distance of 32 miles, the distances walked and run are given:

therefore, They will walk 12 laps and run 20 laps for a total of 32 miles as per the proportional relation.

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Answer:

it’s in the first one

Step-by-step explanation:

so it’s quadrant I.

Answer:

its A. Quadrant 1

Step-by-step explanation:

I had a test on it :)

Step-by-step explanation:

\(6.130 \times {10}^{9} = 9130000000\)

Answer:

the answer is Y = -1.5x + 36

(a) The sign "⇒" should be in the box. (b) The sign "=" should be in the box. (c) The sign "⇔" should be in the box.

(a) In the inequality 1/x < 0, the condition x < 0 implies the inequality. Therefore, "⇒" (implies) is the appropriate sign to be placed in the box.

(b) The expression x^2 - y^2 is equal to (x + y) * (x - y). This is an algebraic identity, meaning the two expressions are equal. Therefore, "=" (equals) is the appropriate sign to be placed in the box.

(c) In the inequality x < 0, if x is less than 0, it also implies that x is less than or equal to 0. Therefore, "⇔" (if and only if) is the appropriate sign to be placed in the box, indicating that both statements are equivalent.

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They should use 6 cup of Noah's measuring cup

They are the set of numbers and symbols that are related by the different mathematical operation signs such as addition, subtraction, multiplication, division among others.

To solve this problem we must perform the following algebraic operations with the given information

Information about the problem:

Calculating the number of cup the should use:

Number of cup = Recipe call / Noah's cup

Number of cup = (3/4) / (1/8)

Number of cup = 3*8 / 4*1

Number of cup = 24/4

Number of cup = 6

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Correctly written question:

Melanie and Noah are baking a birthday cake for Francesca. The recipe call for 3/4 measuring cup and Noah has a 1/8 measuring cup. Which cup should they use?

Answer:it will be 20 inches long at the end of 5 weeks

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

i got it wrong and it showed me the real answer

The probability of adding either ground beef or onion as the first ingredient  0.25 or 25%.

If there are a total of 8 ingredients and 2 of them are either ground beef or onion, then the probability would be:

Probability = (Number of desired outcomes) / (Total number of possible outcomes)

           = 2 / 8

           = 1 / 4

           = 0.25

So, the probability of adding either ground beef or onion as the first ingredient is 0.25 or 25%.

In this case, we have a total of 8 ingredients, out of which 2 are either ground beef or onion. When selecting the first ingredient, there are 8 possible outcomes. Since we want to calculate the probability of adding either ground beef or onion as the first ingredient, we count the number of desired outcomes, which is 2 (either ground beef or onion). Dividing the number of desired outcomes by the total number of possible outcomes gives us the probability.

The probability of adding either ground beef or onion as the first ingredient is 0.25 or 25%. This means that there is a 25% chance that either ground beef or onion will be the first ingredient added, assuming the ingredients are added randomly without any specific order.

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We start by replacing a=1/4, b=0 and c=-5/6 on both sides of a x (b + c) = (a×b) + (a+c) and compare results

So in 1/4 x (0 + (-5/6)) we solve first the parenthesis (0 + (-5/6))=(-5/6)

Now we solve the product 1/4×(-5/6) = -5/24

Now we replace in the other side

(1/4 × 0) + (1/4 × (-5/6))

First parenthesis: (0) + (-5/24) = -5/24

We conclude that both sides are equal to -5/24! So the property verifies

(Btw this is called distributive property)

The solution to the system of differential equations dx/dt = -3x + 0y and dy/dt = -1x - 4y with initial conditions x(0) = 3 and y(0) = -4 is x(t) = e^(-3t) + 2e^(-4t) and y(t) = -2e^(-3t) - 2e^(-4t).

The given system of differential equations is dx/dt = -3x + 0y and dy/dt = -1x - 4y, with eigenvalues -3 and -4. If we are given initial conditions x(0) = 3, y(0) = -4, and r(t) = 3, we can find the solution to the system.

The solution to the system of differential equations is x(t) = a1e^(-3t) + a2e^(-4t) and y(t) = b1e^(-3t) + b2e^(-4t), where a1, a2, b1, and b2 are constants to be determined from the initial conditions.

Substituting the initial conditions x(0) = 3 and y(0) = -4 into the solutions, we can solve for the constants. Since r(t) = 3, we have a1 + a2 = 3. Similarly, substituting y(0) = -4, we obtain b1 + b2 = -4.

Now, we can solve the system of equations a1 + a2 = 3 and b1 + b2 = -4 to find the values of the constants. One possible solution is a1 = 1, a2 = 2, b1 = -2, and b2 = -2.

Therefore, the solution to the system of differential equations dx/dt = -3x + 0y and dy/dt = -1x - 4y with initial conditions x(0) = 3 and y(0) = -4 is x(t) = e^(-3t) + 2e^(-4t) and y(t) = -2e^(-3t) - 2e^(-4t).

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The area of sector TOP is 70.83 square meters.

Given that r = 3m and arc TP = 297

we can find the central angle θ using the formula:

θ = (arc length / circumference) × 360

The circumference of a circle can be calculated using the formula:

circumference = 2πr

Let's calculate the central angle first:

circumference = 2 × π × 3m

circumference = 6π m

θ = (297 / (6π)) × 360

θ = (49.5 / π) × 360

θ= 49.5×57.3

θ = 2833.35

Now, we can calculate the area of sector TOP:

Area = (θ/360) × π × r²

Area = (2833.35/360) × π × (3m)²

Area = 7.87 × 9

Area = 70.83 m²

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The height of the tank if it’s radius is 16 feet is,

⇒ Height = 9.02 feet

To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.

Given that;

A cylindrical fish tank at the zoo has a capacity of 7252 cubic feet.

Now, We know that;

Volume of a cylinder = π × radius² x height

Here, Radius is 16 feet.

Hence, We get;

Volume of a cylinder = π × radius² x height

7252 = 3.14 × 16² × h

⇒ 7252 = 803.84 h

⇒ h = 7252 / 803.84

⇒ h = 9.02 feet

Thus, The height of the tank if it’s radius is 16 feet is,

⇒ Height = 9.02 feet

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Answers:

Everything is rational but choice D

=======================================================

Explanation:

A rational number is anything in the form p/q where p and q are integers. The value of q cannot be zero.

So that's why -4/11 is rational. Here we have p = -4 and q = 11.

Any terminating decimal is rational. For choice A, we have 3.14 = 314/100

Choice C is also rational because \(\sqrt{\frac{4}{9}} = \frac{\sqrt{4}}{\sqrt{9}} = \frac{2}{3}\)

Choice E is rational since 6 = 6/1.

In short, choices A, B, C, and E are rational.

------------------

The only irrational answer is d) 2pi

pi is irrational because we cannot write it as a fraction of two integers. Any number in the form n*pi, where n is any integer, is also irrational.

Answer:The first 1 is 98

The second one I have no idea sorry-

Same with third one

and forth 1 sorry I cant help u with the last 3 I hope someone else does :)

Step-by-step explanation: