Please help its for a grade.

Answer:

The answer is B: The cost of the wheelbarrow is $150, and 150 represents the y-intercept of the function.

Step-by-step explanation:

Firstly, we have to understand that a line is given by y=mx+b, where m is the slope, b is the y-intercept and x and y are coordinates on the given graph. Because we are given the information that x represents the number of bags purchased, there must be a cost for each of the bags; this would be the 4.30 in the equation. The contractor is not buying any number of wheelbarrows, just one. That is given by the 150 that is added to the 4.30x.

Answer: 168 people have to attend

Step-by-step explanation: 2520÷15= 168...just divide it to get it, if it help pls mark as brainliest ^-^, Thank you!

Therefore, the equation for the ellipse is: 16x^2 + 12.25y^2 = 16.

To find the equation for an ellipse with its center at the origin, a horizontal major axis of length 8, and a minor axis of length 7, we can use the standard form of the equation for an ellipse:

(x^2 / a^2) + (y^2 / b^2) = 1

Where 'a' represents the semi-major axis and 'b' represents the semi-minor axis.

In this case, since the major axis is horizontal and has a length of 8, the value of 'a' is half of the major axis length, which is 8/2 = 4.

Similarly, the value of 'b' is half of the minor axis length, which is 7/2 = 3.5.

Plugging these values into the equation, we get:

(x^2 / 4^2) + (y^2 / 3.5^2) = 1

Simplifying, we have:

(x^2 / 16) + (y^2 / 12.25) = 1

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The variables that usually take on integer values and cannot be manipulated through math are known as count variables.

Therefore, the answer to this is count variables. And, when research cannot tell us why things occur, we would say that it lacks theory. So, the answer is "It lacks theory". Count variables are one of the most basic types of variables in statistics. In this type of variable, the values represent some kind of count and, by definition, must be integers.

In simple terms, count variables record how many times something happens or occurs during a particular event or time interval.For instance, a variable that counts the number of siblings in a family is a count variable because it takes on integer values. Another example is the number of home runs hit in a season by a baseball player.Research that cannot tell us why things occur is lacking theory. Theory is critical in the research process because it helps explain the relationship between variables.

Theories can be evaluated through research, and research can help test theories.

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Answer:

I hope you got it.

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448 ÷ 320 = 1.4

The division expression is:

448 ÷ 320

This can be rewritten as:

Given: 32 x 14 = 448

Also, 32 x 10 = 320

Therefore, replace 448 by 32 x 14 and also replace 320 by 32 x 10

Since 32 is common to the numerator and denominator, it can cancel out

The resulting expression is:

Therefore, 448 ÷ 320 = 1.4

The main answer is the length of the pool is 90 yards and the width is 25 yards.


Let's call the width of the pool "w" and the length "l". We know that the perimeter (P) of a rectangle is the sum of all four sides. In this case, we are given that the perimeter is 260 yards, so we can set up the equation:
P = 2l + 2w
260 = 2l + 2w
We also know that the length is 20 yards less than four times the width, so we can set up another equation:
l = 4w - 20
Now we can substitute the second equation into the first equation to solve for the width:
260 = 2(4w - 20) + 2w
260 = 8w - 40 + 2w
260 + 40 = 10w
300 = 10w
w = 30
Now that we know the width is 30 yards, we can use the second equation to find the length:
l = 4w - 20
l = 4(30) - 20
l = 120 - 20
l = 100
So the length of the pool is 100 yards and the width is 30 yards.

Summary:
To find the length and width of a rectangular pool given its perimeter and the relationship between length and width, we set up two equations and solve for the width first, then use that value to find the length. In this case, the width is 30 yards and the length is 100 yards.

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Answer:

first, second and fourth are all correct

Step-by-step explanation:

Answer:4^7

Step-by-step explanation:

To simplify it here we can see that 48 is the factor of 12 which is 12×4=48 So.,

Dividing 48 by 12 we get 4 and the power is same co it comes as it it so the answer here is 4^7

Answer:

y - 3 = - 1/4(x + 2)

Step-by-step explanation:

m = - 1/4

Point = (-2,3)

y-intercept = 3 - (- 1/4) (-2)

= 3 - 1/2 = 5/2

y = - 1/4x + 5/2

Answer:

the solution is (21/2, 19/2)

Step-by-step explanation:

The first equation, x = y + 1, has already been solved for x.  We can eliminate x in the second equatin by substituting y + 1 for x:

y = -(1/3)(y + 1) + 6

Let's eliminate fractions by multiplying all three terms by 3:

3y = y + 1 + 18

Combining like terms results in:

2y = 19, so that y = 19/2.

Substituting this 19/2 for y in the first equation, we get:

19/2 + 2/2 = x, or

x = 21/2

Thus the solution is (21/2, 19/2)

Budgeting for a household and a business both require setting financial goals, prioritizing expenses, and tracking income and expenses

Given that;

To find budgeting for a household be similar to budgeting for a business.

Since, Budgeting for a household and a business both require setting financial goals, prioritizing expenses, and tracking income and expenses.

Here,  In both cases, it's important to consider fixed and variable expenses, such as rent or mortgage payments, bills, food costs, and employee salaries.

And, Additionally, creating a contingency plan for unexpected expenses is essential for both households and businesses.

Hence, The main difference is that businesses may have more complex financial structures with investors or loans to consider, while households typically have simpler financial structures.

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The number of cars that the dealer have for sale is 17 cars.

From the problem given, if the ratio of cars to trucks on the lot is 11 to 33, we can write this as: Cars/Trucks = 11/33

We can also simplify this ratio by dividing both sides by 11:

==> cars/51 = 11/33

Now we can solve for the number of cars:

Cars = (11/33) * 51

Cars = 17. Therefore, the dealer has 17 cars for sale.

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The p value for the difference is 0.005.

According to the statement

we have given that the 74 of 100 urban residents favor the construction while only 70 of 125 suburban residents are in favor.

And we have  to find the difference between them in proportions.

So,

X1 = 74 represent the number of residents in a certain city and its suburbs who favor the construction of a nuclear power plant

X2 = 70 represent the number of people suburban residents are in favor

N1  = 100 sample 1 selected

N2 = 125 sample 2 selected

AND

P1 = 0.74 represent the proportion of residents in a certain city and its suburbs who favor the construction of a nuclear power plant

And P2 = 0.56 represent the proportion of suburban residents are in favor And z would represent the statistic (variable of interest)  

Pv represent the value for the test (variable of interest)

Here we apply the Z test to find the difference then

Z = (0.74 - 0.56) / (0.64(1-0.64)(1/100+1/125) )^1/2

Now after solving

Z = 2.795.

Now The significance level provided is  ,and we can calculate the p value for this test.  

Since is a two tailed test the p value would be:  

P = (z>2,795)

P = 0.005.

So, The p value for the difference is 0.005.

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Answer:

5 1/2 is your second answer :)

Answer:

\(A)5\frac{1}{2}\)

Step-by-step explanation:

To multiply a number and a mixed number, first convert the improper fraction to a mixed number. This can be done by multiplying the "number" part of the mixed number by the denominator (number underneath the fraction bar) and then adding the result to the numerator. After doing so, one can either multiply the improper fraction by the number, and then simplify the result, or one can cross simplify the number and the denominator, then multiply by the numerator.

\(4 * 1\frac{3}{8}\\\\4 * \frac{11}{8}\\\\=\frac{44}{8}\\\\= \frac{11}{2}\)

Now one must convert this improper fraction to a mixed number. One can do this by diving the numerator by the denominator, writing the result as the "number" part of the mixed number, and then writing the remainder as the numerator of the fraction.

\(5\frac{1}{2}\)

Answer:

option c is correct

Step-by-step explanation:

please mark me brainlest

please thanks

Answer:

Step-by-step explanation:

Answer is C.  0.132

Answer:

5000x(44554)z34

Step-by-step explanation:

PLEASE answer my recent brainless/question ); <333

Answer:

i need a pic of the graph to tell you the answer

Step-by-step explanation:

Answer:

The number of black pieces needed to manufacture the ball is 11 black pieces

Step-by-step explanation:

Given that the number of pieces in the soccer ball = 32 pieces

The shape of the white piece = Hexagon

The shape of the black piece = Pentagon

Each black piece borders with only white pieces

Each white piece borders with three black pieces and three white pieces

For the first black pie  piece is borders to 5 white pieces total 6 pieces

Each of the five white pieced borders 3 pieced total 5 black pieces on the sides and one white piece on top to make an additional 10 piece total = 10 + 6 = 21 piece

Each black piece holds one white piece to add extra 5 pieces to make the total = 26

At the outermost shell of the arrangement, each of the white piece attached  to a black piece will attach to an extra black piece, bringing the total to 26 + 5 = 31,

The last piece is white

Total black piece = 1 + 5 + 5 = 11 black pieces.

Answer:

\(4 {x}^{3} + 2 {x}^{2} - 8x - 4\)

Step-by-step explanation:

it's simple, just multiply

f.g(x)=(x^2-2)(4x+2)=4x^3+2x^2-8x-4

Step-by-step explanation:

Hi there!

f(x) = x²-2

g(x) = 4x+2

Then;

f(x).g(x) = (x²-2)*(4x+2)

= x²(4x+2) -2 (4x+2)

= 4x³ + 2x² - 8x - 4

Therefore, the answer is f(x).g(x)= 4x³ + 2x² - 8x - 4.

Hope it helps!

The probability of choosing sausage and onion by Rosa's mom from the given 8 different toppings as per given condition is equal to

(1/ ⁸C₂).

As given in the question,

Total number of different toppings = 8

Number of different toppings choose by Rosa's mom randomly = 2

Possibility of choosing sausage and onion (any one) = 1

Total number of outcomes = ⁸C₂

Number of favorable outcomes = 1

Probability of choosing sausage and onion ( exactly ) one topping

= ( Number of favorable outcomes ) / ( Total number of outcomes )

= ( 1/⁸C₂ )

Therefore, the probability when Rosa's mom chooses sausage and onion out of 8 toppings is equal to ( 1/⁸C₂ ).

The above question is incomplete, the complete question is:

A pizza restaurant is offering a special price on pizzas with 2 toppings. They offer the toppings

below:

Pepperoni ,Sausage, Chicken ,  Green pepper , Mushroom ,Pineapple, Ham, Onion

Suppose that Rosa's favorite is sausage and onion, but her mom can't remember that, and she is going to randomly choose 2 different toppings.

What is the probability that Rosa's mom chooses sausage and onion?

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Answer:

1/8c^2

Step-by-step explanation:

Khan Acadmey

By using sum or difference formulas, cos(-a) can be written as - cos(a). Explanation: We know that cosine is an even function of x, therefore,\(cos(-x) = cos(x)\) .Then, by using the identity \(cos(a - b) = cos(a) cos(b) + sin(a) sin(b)\), we can say that:\(cos(a - a) = cos²(a) + sin²(a).\)

This simplifies to:\(cos(0) = cos²(a) + sin²(a)cos(0) = 1So, cos(a)² + sin(a)² = 1Or, cos²(a) = 1 - sin²\)(a)Similarly,\(cos(-a)² = 1 - sin²(-a)\) Since cosine is an even function, \(cos(-a) = cos(a)\) Therefore, \(cos(-a)² = cos²(a) = 1 - sin²(a)cos(-a) = ±sqrt(1 - sin²(a))'.\)

This is the general formula for cos(-a), which can be written as a combination of sine and cosine. Since cosine is an even function, the negative sign can be written inside the square root: \(cos(-a) = ±sqrt(1 - sin²(a)) = ±sqrt(sin²(a) - 1) = -cos\).

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The solution to the matrix equation X + [-3 2 9 -7] = [-3 5 4 -5] is X = [0 3 -5 -2].

To solve the matrix equation, we need to subtract the given matrix from both sides of the equation. By doing so, we isolate the variable matrix X on one side.

Given:

X + [-3 2 9 -7] = [-3 5 4 -5]

Subtracting [-3 2 9 -7] from both sides:

X = [-3 5 4 -5] - [-3 2 9 -7]

Performing the subtraction:

X = [-3-(-3) 5-2 4-9 -5-(-7)]

= [0 3 -5 -2]

Therefore, the solution to the matrix equation is X = [0 3 -5 -2].

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Answer:

51% of 200 =

102

Step-by-step explanation:

51           x     200  =  10200

100                  1  =      100       10200/100 = 102

percentages is out of 100

Another way:

51/100 is .51 so just multiply it by 200!

.51 x 200 = 102

Hope this helps you out! :)

Answer:

Step-by-step explanation:

How you get 51% of 200 is by multiplying 51 by 200 then dividing the value of 51 times 200 by 100.

51 ⋅ 200 = 10200 ÷ 100 = 102 Steps

So, 51% of 200 equals 102 Steps

Hope this helps! <3

Answer:

6 ÷ 2             3

--            =    ----

4 ÷ 2             2

Step-by-step explanation:

6 / 4  can be reduced to 3 / 2

6 ÷ 2             3

--            =    ----

4 ÷ 2             2

Hope that helps! Proportional just means that they are equal to one another / each other

Answer:

She needs to save $500 each month over the next 2 years to fulfill her first year of tuition.

Step-by-step explanation:

Consider the provided information.

She needs $48,000 per year for tuition.

The university offered financial aid that covers 50% of her tuition expenses.

It means she needs to pay only 50% of $48,000 per year for the tuition fee.

\(50\% \times 48,000=\frac{50}{100}\times48,000\)

                      \(=24,000\)

Now she needs $24,000 for tuition expenses.

Her parents contribute $10,000 for tuition each year and she receives a local scholarship for $2,000.

Now, for the first year of tuition, she needs=$24,000-$10,000-$2000

                                                                       =$12,000

In 2 years there are 24 months, which means she needs to save $12,000 in 24 months.

Amount she needs to save each month = \(\dfrac{\$12000}{24}=\$500\)

Hence, she needs to save $500 each month over the next 2 years to fulfill her first year of tuition.