Plz help I do t have much time!!!!!!!!! Which expression is represented by the model?

A.
B.
C.
D.

Answer:

y=14

Step-by-step explanation:

because I solved it and got 14 ......

The value of y in the solution to the system of equations given is 20.

Linear equations are equations which are in the form of ax + by + c = 0, where a, b, and c are real numbers and also coefficients of both the variables, x and y, must not be equal to zero.

There are infinitely many solutions for a linear equation in two variables.

System of linear equations in two variables consist of two or more equations which are linear in two variables.

System of equations given here are,

3y = 18x + 6 and y = 2x + 14

We are solving this by substitution method.

Substituting y = 2x + 14 in 3y = 18x + 6, we have,

3 (2x + 14) = 18x + 6

Applying distributive property on the left hand side of the equation,

(3 × 2x) + (3 × 14) = 18x + 6

6x + 42 = 18x + 6

42 - 6 = 18x - 6x

36 = 12x

x = 3

Substituting x = 3 in y = 2x + 14,

y = (2 × 3) + 14

y = 20

Hence, the value of y in the solution to the system of linear equations 3y=18x+6 and y=2x+14 is 20.

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The test statistic (3.46) is greater than the critical value (2.05), we reject the null hypothesis and conclude that there is sufficient evidence at the 0.02 level to support the company's claim that above 61% of the chips do not fail in the first 1000 hours of their use.

The null hypothesis for this scenario is that the proportion of computer chips that do not fail in the first 1000 hours of their use is equal to or less than 61%, while the alternative hypothesis is that the proportion is greater than 61%. Mathematically:

H0: p ≤ 0.61

Ha: p > 0.61

where p is the true proportion of computer chips that do not fail in the first 1000 hours of their use.

To test this hypothesis, we can use a one-tailed z-test for proportions. Using the given sample information, we can calculate the test statistic as:

z = (0.64 - 0.61) / sqrt((0.61 * 0.39) / 1600) = 3.46

where 0.39 is the complement of 0.61, and sqrt denotes the square root. The critical value for a one-tailed test at the 0.02 level of significance is 2.05.

Since the test statistic (3.46) is greater than the critical value (2.05), we reject the null hypothesis and conclude that there is sufficient evidence at the 0.02 level to support the company's claim that above 61% of the chips do not fail in the first 1000 hours of their use.

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1. C. cylindrical coordinates 2 A. spherical coordinates 3. A. spherical coordinates 4. D. Cartesian coordinates 5  B. polar coordinates

USE THE BOUNDARY INTERVALS TO IDENTIFY

1. ∭E dV where E is:  

x^2 + y^2 + z^2<= 4, x>= 0, y>= 0, z>= 0  -- This is A CYLINDRICAL COORDINATES SINCE x>= 0, y>= 0, z>= 0

2. ∭E z^2 dV where E is:  

-2 <= z <= 2,1 <= x^ 2 + y^2 <= 2 This is A SPHERICAL COORDINATES

3. ∭E z dV where E is:

1 <= x <= 2, 3<= y <= 4,5 <= z <= 6 -- This is A SPHERICAL COORDINATES

4. ∫10∫y^20 1/x dx  ---- This is A CARTESIAN COORDINATES

5. ∬D 1/x^2 + y^2 dA where D is: x^2 + y^2 <=4  This is A POLAR COORDINATES

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The equation that can be used to calculate the area of the triangle below is:

\(\frac{1}{2}(14 \times 8) = 56\)

Hence option d is correct.

The area of a triangle is half the multiplication of the lengths of the base and of the height, that is:

\(A = \frac{bh}{2}\)

In a right-triangle such as in this problem, one side is the base and the other is the height. In this problem, b = 14 and h = 8, hence the area in square feet is given by:

\(A = \frac{1}{2}(14 \times 8) = 56\)

Thus option D is correct.

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If 4 - 5i is a zero of a quadratic function with real coefficients, then 4 + 5i is also a zero. The zeros of a quadratic function with real coefficients always occur in conjugate pairs.

In a quadratic function with real coefficients, the complex zeros occur in conjugate pairs due to the nature of the quadratic equation. The quadratic equation can be factored as (x - a)(x - b), where "a" and "b" represent the zeros of the function. If 4 - 5i is one of the zeros, it means that (x - (4 - 5i)) is a factor of the quadratic equation.

By expanding this factor, we get x - 4 + 5i. To ensure the coefficients remain real, the conjugate of 4 - 5i must also be a zero. Therefore, the other zero will be 4 + 5i. This property of complex zeros occurring in conjugate pairs is essential when dealing with quadratic functions with real coefficients.

When a quadratic function with real coefficients has a complex zero of 4 - 5i, it will also have a complex zero of 4 + 5i. This is due to the conjugate pair property, where complex zeros occur in pairs that differ only in the sign of the imaginary part.

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Answer:

The radius is the horizontal part of the circle. Aka the upper and lower half of a circle

The diameter is the vertical part. Aka the left or right part of a circle

Step-by-step explanation:

Answer:

x = -7

Step-by-step explanation:

Given parameters:

Slope of the line = \(\frac{4}{3}\)

 Coordinates =  (5,x) and (2,-3)

Unknown:

X= ?

Solution:

  To find slope, use the expression below;

   Slope  = \(\frac{y_{2} - y_{1} }{x_{2} - x_{1} }\)

y₂ = -3  y₁ = x

x₂ = 2   x₁ = 5

   \(\frac{4}{3}\)  = \(\frac{-3 - x}{2 - 5}\)

           3(-3-x) = 4(-3)

            -9 -3x = 12

                -3x = 21

                  x = -7

Cost price is the total amount paid for the jacket while the selling price is the amount they are sold. The expression for her total earning willbe t(d) = hd - jp

Cost price is the total amount paid for the jacket while the selling price is the amount they are sold.

Total earning = Selling price  - Cost price

If Dafna makes sport jackets and she is paid d dollars per hour, plus a piece rate of p dollars for each jacket.

Cost price = hd

x is the number of hour

Selling price = jp

total earning = hd - jp

Hence the expression for her total earning willbe t(d) = hd - jp

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An estimate for the total volume of food and water you've ingested in the last day is 3000-5000 milliliters. On average, the heart pumps about 5 liters of blood per minute. 10-20% or more error I'm expecting. Calculating heart blood volume compared to food and drink consumption is crucial for understanding circulation and liver function.

D.1 Estimating the amount of food and water consumed in a day can be difficult without specific measurements, but a rough estimate can be made based on typical intake amounts. On average, a person may consume 2-3 liters of water and 1000-2000 calories per day, resulting in an estimated total volume of 3000-5000 milliliters.

D.2 The amount of blood pumped by the heart varies from person to person and depends on factors such as heart rate and overall health. On average, the heart pumps about 5 liters of blood per minute, which is much larger than the estimated volume of food and water intake.

D.3 Estimating food and water intake and blood flow is prone to error due to variability and uncertainties in personal measurements. Individuals' habits, health, and physical activity levels can affect these estimates, potentially resulting in a significant error of 10-20% or more.

D.4 The calculation of the heart's blood volume compared to food and drink consumption is crucial for understanding the circulation system and liver role.

The liver processes nutrients, detoxifies, and produces blood components, while the heart is responsible for circulating blood throughout the body. The vast difference in volume between the two is emphasized, emphasizing the heart's crucial role in maintaining circulation.

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Answer:

1.275 or 1 11/40

Answer:

1 11/40

Step-by-step explanation:

-1 3/5- (-2 7/8)

so the negative and subtraction combined to positive

like,

-1 3/5+ 2 7/8

so, then separate to make it easier,

-1 -3/5 +2 +7/8

then,

-1+2= 1

and,

-3/5+7/8 but you have to find common denominators so,

-24/40 + 35/40 = 11/40

after that add it all together to get your answer,

1 + 11/40= 1 11/40

The coordinate points of the solid circles indicates that the reason the graph is not a function is the option;

A function is a rule or definition which maps the elements of an input set unto the elements of output set, such that each element of the input set is mapped to exactly one element of the set of output elements.

The location of the solid circles on the coordinate plane are;

(-2, -5), (-1, 3), (1, -2), (3, 0), (4, -2), (4, 4)

The above coordinates can be arranged in a tabular form as follows;

x;\({}\) -2, -1,   1,  3,   4, 4

y; \({}\)-5, 3,  -2,  0, -2, 4

The above coordinate point values indicates that the x-coordinate point x = 4, has two y-coordinate values of -2, and 4, therefore, a vertical line drawn at the point x = 4, on the graph, intersect the graph at two points, y = -2, and y = 4, therefore, the data does not pass the vertical line test and the graph for a function, which indicates;

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A food that contains 20 grams of carbohydrates, 8 grams of protein, and 5 grams of fat provides approximately 157 calories.

To calculate the total calories provided by the food, we need to determine the calories contributed by each macronutrient and sum them up. Carbohydrates and proteins provide 4 calories per gram, while fat provides 9 calories per gram.

For carbohydrates: 20 grams * 4 calories/gram = 80 calories

For protein: 8 grams * 4 calories/gram = 32 calories

For fat: 5 grams * 9 calories/gram = 45 calories

Adding up the calories from each macronutrient, we have:

80 calories (carbohydrates) + 32 calories (protein) + 45 calories (fat) = 157 calories.

Therefore, a food containing 20 grams of carbohydrates, 8 grams of protein, and 5 grams of fat provides approximately 157 calories.

It's important to note that this calculation is an estimate and does not take into account other factors such as fiber content or specific types of fats. Additionally, there may be small rounding errors in the calculation.

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Answer: A

Step-by-step explanation:

Answer:

The terminal point is (1, 0) ⇒ D

Step-by-step explanation:

In the unit circle, Ф is the angle between the terminal side and the positive part of the x-xis

In a unit circle

∵ Ф = 2π radians

→ By using the 1st rule above

∴ The terminal point is (1, 0)

Answer:

(1,0)

Step-by-step explanation:

Answer:

To regroup means to rearrange groups in place value to carry out an operation.

Answer:

Answer 1. C

Answer 2. There's not enough information. You didn't give us the radius or diameter.

Answer 3. B

Answer 4. A

Answer 5. D

Answer 6. A

Answer 7. We can't see the gameboard. Sorry!

Answer 8. We can't see the map. Sorry!

Answer 9. A

Hope that helps! Sorry for the missings! I'm not sure for Answer 4.

Hope that helps!

Step-by-step explanation:

The value of x for equation x /45 = 3 is 135, value of expression −5.8 + (−2.5) is -8.3, the sale price is $319.20, volume of cube is 125 cubic centimeter, y = x /8 represents a proportional relationship.

An expression is combination of variables, numbers and operators.

1. The given equation is x /45 = 3

Now value of x is 45×3

x=135

3. The expression is −5.8 + (−2.5)

−5.8 −2.5

The value of expression is -8.3

4.To find the sale price  after a 20% discount, we need to subtract 20% of the original price from the original price:

20% of $399 = (20/100) x $399 = $79.80

Sale price = $399 - $79.80 = $319.20

Therefore, the sale price is $319.20.

5.  The side length of cube is 5 cm

Volume = 5³

=125 cubic centimeter

6. y = 8/ x equation represents a proportional relationship

7. 5 ft² is area of the wall will the game board cover

9. The given expression is 5 /8 x 4 /5

20/40

1/2

Hence, the value of x for equation x /45 = 3 is 135, value of expression −5.8 + (−2.5) is -8.3, the sale price is $319.20, volume of cube is 125 cubic centimeter, y = x /8 represents a proportional relationship.

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Usando el concepto del área del triángulo, se encuentra que :

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

El área del triángulo de base b y altura h es dada por:

\(A = \frac{bh}{2}\)

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

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

Reemplazando en la ecuación para el área, es posible encontrar la altura:

\(A = \frac{bh}{2}\)

\(432 = \frac{3h \times h}{2}\)

\(3h^2 = 864\)

\(h^2 = \frac{864}{3}\)

\(h^2 = 288\)

\(h = \sqrt{288}\)

\(h = 16.97\)

La altura es de 16.97 unidades.

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

La base es dada en funcion da altura, o sea:

\(b = 3h = 3(16.97) = 50.91\)

La base es de 50.91 unidades.

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The range for the scores is 1.0 (from 9.9 to 8.9). The range is the difference between the highest and lowest numbers in a set of numbers. In this case, the highest score is 9.9 and the lowest score is 8.9, so the range is 1.0.

In mathematics, the range of a function can refer to one of two similar terms:

the common area of ​​the function

The image of the function

Given two groups X and Y, the binary relation f between X and Y is a (exact) function (X to Y), if there is a y in Y for every x in X, so f is associated with y. The sets X and Y are called the area of ​​f and the common domain, respectively.

The range is a measure of dispersion in a set of numbers. To find the range, you need to subtract the lowest score from the highest score. In this case, the scores for the Olympic gymnast are: 9.9, 9.8, 9.6, 9.5, 9.7, 9.1, 8.9, and 9.8.

First, identify the highest and lowest scores:
Highest score: 9.9
Lowest score: 8.9

Next, subtract the lowest score from the highest score:
Range = 9.9 - 8.9

The range for the scores is 1.0 (9.9 to 8.9).

Your answer: 1.0 (9.9 to 8.9)

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Answer:

$1.75

Step-by-step explanation:

Honestly, you don't really have to pay attention to the other numbers or ratios on the graph until you think you found your answer. Pay attention to whichever ratio you choose and follow these steps:

1. Identify which number is the cost and which is the amount of pens bought

2. Set it up as a division problem by using the cost and the dividend and the amount of pens as the divisor

3. After you have your answer, plot your ratio of 1:(your product) and if the line that was graphed is straight, you are correct.

PS. I used the ratio (2:3.5) to solve this problem

You can make 4.75 batches of muffins from 1 pound of sugar bag.

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the value of a single unit to get the necessary value.

Given is a pound of bag of sugar that contains 114 teaspoon servings and costs $1.26. A batch of muffins uses 1/2 cup of sugar.

A batch of muffins uses 1/2 cup of sugar. Assume that you can make [n] batches of muffins. In one cup, there are 48 teaspoons. Then, in 114 teaspoons, there will be (114/48) cups

1 batch needs (1/2) cup of sugar. This means that in one cup of sugar you can make 2 batch of muffins. Then, in (114/48) cups of sugar, you can make- (2 x 114/48) or 4.75 batches of muffins.

Therefore, you can make 4.75 batches of muffins from 1 pound of sugar bag.

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Using it's concept, it is found that there is a There is a 0.1667 = 16.67% probability that the sum is less than 8 if the pink die shows a number less than 4.

A probability is given by the number of desired outcomes divided by the number of total outcomes.

In this problem, the possible outcomes for the pair of dice are given by:

(1,1), (1,2), (1,3), (1,4), (1,5), (1,6)

(2,1), (2,2), (2,3), (2,4), (2,5), (2,6)

(3,1), (3,2), (3,3), (3,4), (3,5), (3,6)

(4,1), (4,2), (4,3), (4,4), (4,5), (4,6)

(5,1), (5,2), (5,3), (5,4), (5,5), (5,6)

(6,1), (6,2), (6,3), (6,4), (6,5), (6,6)

We want to find the probability that the sum is less than 8 if the first die(the pink one) shows a number less than 4.

There are 18 total outcomes in which the pink die is less than 4, and in 3, the sum is less than 4, hence:

p = 3/18 = 1/6 = 0.1667.

There is a 0.1667 = 16.67% probability that the sum is less than 8 if the pink die shows a number less than 4.

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Answer:

  75 minutes

Step-by-step explanation:

The x-coordinate of the point of intersection is the number of minutes it takes Arnob to catch up with Kathleen. You can read this value from your graph.

It takes 75 minutes for Arnob to catch up to Kathleen.

______

Additional comment

They will meet up after 10 miles.

Answer:

D

Step-by-step explanation:

got it right on edge on Edge

Answer:

yes

Step-by-step explanation:

any positive number is greater than a negative

y(x) = (1/6)x^2 - (8/9)x - 127/18.

Find the function of y(x) ?

To find the function y(x) that satisfies the given differential equation and initial condition, we can integrate the equation with respect to x.

Starting with the given differential equation:

dy/dx = (3x - 8)/9

We integrate both sides with respect to x:

∫dy = ∫(3x - 8)/9 dx

Integrating, we get:

y = ∫(3x - 8)/9 dx

Now, let's integrate each term separately:

y = (1/9) ∫(3x - 8) dx

= (1/9) [(3/2)x^2 - 8x] + C

Where C is the constant of integration.

To find the value of C, we can use the initial condition y(-1) = -6. Plugging in x = -1 and y = -6 into the equation, we have:

-6 = (1/9) [(3/2)(-1)^2 - 8(-1)] + C

-6 = (1/9) [(3/2) + 8] + C

-6 = (1/9) [3/2 + 16/2] + C

-6 = (1/9) (19/2) + C

-6 = 19/18 + C

To isolate C, we can subtract 19/18 from both sides:

C = -6 - 19/18

C = -108/18 - 19/18

C = -127/18

Now we substitute the value of C back into the equation:

y = (1/9) [(3/2)x^2 - 8x] - 127/18

Simplifying further, we have:

y = (1/6)x^2 - (8/9)x - 127/18

Therefore, the function y(x) that satisfies the given differential equation dy/dx = (3x - 8)/9 and the initial condition y(-1) = -6 is:

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To get the box's volume, apply the following equation:

14 . 8 . 5 = V

Volume of the shoebox = 560 in³

The volume of a cuboid is a measure of how much space it takes up. A three-dimensional shape with length, breadth, and height is the cuboid. If we start with a rectangular sheet and keep stacking them, we will eventually have a shape with a certain length, breadth, and height.

The base area and height are multiplied to determine the cuboid's volume.

The base area of the cuboid is l b.

The formula for a cuboid's volume is V = l b h = lbh.

Now in the question,

Length of the shoebox, l = 14 inches

Breadth of the shoebox, b = 8 inches

Height of the shoebox, h = 5 inches

Volume of the shoebox, V = l × b × h

⇒ V= 14 × 8 × 5

⇒ V =560 in³

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The argument is not valid.

The argument form is: p ∧ ∼ q → r, p ∨ q, q → p, therefore r. We can use the truth table to determine whether this argument is valid or invalid. Here is the annotated truth table:


 
   p
   q
   ∼q
   p ∧ ∼q
   p ∨ q
   p ∧ ∼q → r
   q → p
   r
 
 
   T
   T
   F
   F
   T
   T
   T
   T
 
 
   T
   F
   T
   T
   T
   T
   T
   T
 
 
   F
   T
   F
   F
   T
   T
   F
   F
 
 
   F
   F
   T
   F
   F
   T
   T
   F
 

From the truth table, we can see that the conclusion r is not always true, even when all the premises are true. For example, in the third row of the table, all the premises are true, but the conclusion is false. This means that the argument is invalid. The truth table supports this conclusion because it shows that there are cases where the premises are true but the conclusion is false. Therefore, the argument is not valid.

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The domain and the range of the function are (-∝, ∝) and (0, ∝), respectively

From the question, we have the following parameters that can be used in our computation:

The graph

The above graph is an exponential function

The rule of an function is that

The domain is the set of all real values

In this case, the domain is (-∝, ∝)

For the range, we have

Range = (0, ∝)

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