20 points!! please help, will give brainliest

the x-intercepts in a function are pretty much just its roots or solutions, so let's reword that

what's the equation of a parabola with roots at -3 and 4 that it passes through (0 , -6)?

[tex]\begin{cases} x = -3 &\implies x +3=0\\ x = 4 &\implies x -4=0\\ \end{cases} \\\\[-0.35em] ~\dotfill\\\\ \stackrel{original~polynomial}{a ( x +3 )( x -4 ) = \stackrel{0}{y}}\hspace{5em}\textit{we also know that } \begin{cases} x=0\\ y=-6 \end{cases} \\\\\\ a ( 0 +3 )( 0 -4 ) = -6\implies -12a=-6\implies a=\cfrac{-6}{-12}\implies a=\cfrac{1}{2} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{1}{2}( x +3 )( x -4 ) =y\implies \cfrac{1}{2}(x^2-x-12)=y\implies \boxed{\cfrac{x^2}{2}-\cfrac{x}{2}-6=y}[/tex]

Check the picture below.

Answer:

The answer is 9 cm to the nearest cm

Step-by-step explanation:

[tex]volume \: of \: a \: cone = \frac{1}{3} \pi {r}^{2} h[/tex]

1256=1/3×22/7×r²×14

1256=1/3×22×2×r²

3768=44r²

44r²/44=3768/44

r²=942/11

take square root of both sides

r=9 cm to the nearest cm

The three costs that contribute to the total cost of a mortgage are the down payment, mortgage tax and monthly interest.

The correct option is a.

We have,

A down payment can be understood as a sum of money that a buyer pays in the early stages of purchasing an expensive good or service. The down payment represents a portion of the total purchase price, and the buyer will often take out a loan to finance the remainder. A down payment is a money paid upfront in a financial transaction, such as the purchase of a home or car.

Buyers often take out loans to finance the remainder of the purchase price. The higher the down payment, the less the buyer will need to borrow to complete the transaction, the lower their monthly payments, and the less they'll pay in interest over the long term.

Depending on the borrower and the type of purchase, lenders may require down payments as low as 0% or as high as 50%.

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complete question:

What three costs contribute to the total cost of a mortgage?

A.

down payment, mortgage tax, and monthly interest

B.

closing cost, down payment, and monthly loan payment

C.

closing cost, monthly interest, and starting deposit

D.

starting deposit, monthly interest, and mortgage tax

Answer: -29/15.

Step-by-step explanation:

-4/3 - 2 + 2/5 + 1

= (-20/15) - (30/15) + (6/15) + (15/15) (finding a common denominator of 15)

= (-20 - 30 + 6 + 15) / 15

= -29/15

The mass of this rectangular object is equal to 232 grams.

In Mathematics and Geometry, the volume of a rectangular prism can be calculated by using the following formula:

Volume of a rectangular prism = L × W × H

Where:

By substituting the given dimensions (parameters) into the formula for the volume of a rectangular prism, we have the following;

Volume of rectangular object = 5 × 4 ×  2

Volume of rectangular object = 40 cubic centimeter.

Mass of rectangular object = density × volume

Mass of rectangular object = 5.8 × 40

Mass of rectangular object = 232 grams.

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The notation P(F|E) means the probability of event F given event E.

In probability notation, P(F|E) represents the conditional probability of event F occurring given that event E has already occurred. It is read as "the probability of F given E." The vertical bar "|" indicates "given" or "conditional on." This notation allows us to calculate the probability of one event happening, taking into account the occurrence of another event. For example, P(F|E) would represent the probability of rain (event F) given that the weather forecast predicts a cloudy day (event E). The conditional probability allows us to analyze how events are related and make more accurate predictions or assessments based on the given information.

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7, 5, 4 numbers can be the measures of the sides of a triangle.

To know if the three given numbers above in the question can be the measures of the sides of a triangle, one need to use the Triangle Inequality Theorem,

The law states that the sum of the lengths of any two sides of a triangle is one that needs to be greater than the length of the third side. Hence using it, one can say that:

Series 7, 5, 4  can be the measures of the sides of a triangle due to the fact that 7 is lesser than the sum of 5 and 4.

Series 3, 6, 2   cannot be the measures of the sides of a triangle because 6 is said to be greater than the sum of 3 and 2, and this violate the Triangle Inequality Theorem.

Series , 5, 2, 4, the three numbers can be the measures of the sides of a triangle due to the fact that the sum of any two sides is greater than the third side of 5. The same applies to the others.

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Since these values are not equal, Lin and Noah would obtain different volume measurements when using their small cubes to find the volume of the 1 1/2 inch cube.

No, Lin and Noah would not get the same value for the volume of the 1 1/2 inch cube using their small cubes.

The volume of a cube is determined by multiplying the length of its edges three times. Lin's cube has an edge length of 1/2 inch, and Noah's cube has an edge length of 1/4 inch.

For Lin's cube, the volume would be (1/2) * (1/2) * (1/2) = 1/8 cubic inches.

For Noah's cube, the volume would be (1/4) * (1/4) * (1/4) = 1/64 cubic inches.

Lin's cube would yield a volume of 1/8 cubic inches, while Noah's cube would result in a volume of 1/64 cubic inches.

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Answer:

25350 cm²

Step-by-step explanation:

A Cube has a length of 65cm. find its surface area.

65 × 65 × 6 =

4225 × 6 =

25350 cm²

Answer:

2x+2

Step-by-step explanation:

Answer:

2x + 2

Step-by-step explanation:

Differentiate using the Power Rule,

d/dx [x^n] = nx^n−1

The feedback that the runners received from their coach is called positive feedback. Positive feedback is a type of feedback that reinforces the current behavior, making it more likely to continue or increase in frequency.

In this case, the runners' average time for sprinting improved each day, so the coach provided positive feedback to encourage them to continue with their training. Positive feedback can be a powerful motivator, as it provides a sense of accomplishment and encourages individuals to continue striving for improvement. In contrast, negative feedback involves pointing out areas for improvement or mistakes, and can be demotivating if not delivered constructively.

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There is the not sufficient evidence that the average small business loan is different that the amount stated in the  investment blog.

We have,

The standard deviation in statistics is a measurement of how much a group of values can vary or be dispersed. A low standard deviation suggests that values are often close to the set's mean, whereas a large standard deviation suggests that values are dispersed over a wider range.

Here we have given that,

Claim: To check whether the average small business loan is different that the amount stated in the  investment blog.

The hypothesis is,

H0: μ= 20 thousand dollars  Versus  H0: μ ≠ 20 thousand dollars

We have given that,

n= Number of observation = 25

x bar  = sample mean =18.5

S= sample standard deviation =5

Here, population standard deviation is unknown, we use the one sample t test.

t - statistics = (x bar - μ) / (s / √n)

                  = (18.5 - 20) / (5 / √25)

                  = -1.342

we get,

the Test statistic is -1.342

Now we find the P-value

α = level of significance = 0.05

Degrees of freedom = n - 1 = 25 - 1 = 24

This is two tailed test as our interest is to show the population mean is equal or not equal to zero.

Now, we can find the P-value

P-value = 0.1922     Using EXCEL = TDIST( | t-statistics | = 1.342 , D.F=24, tail=2)

Hence, There is the not sufficient evidence that the average small business loan is different that the amount stated in the investment blog.

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complete question:

Complete the steps of a one-mean hypothesis test with Population SD unknown ritical Value Approach Complete the steps of a one-mean hypothesis test with Population SD unknown - Critical Value approach Question An investment blog states the average small business loan is 20 thousand dollars. A business loan broker would like to test the claim that the average small business loan is different than the amount stated in the investment blog. To test this claim at the 5% significance level, the business loan broker collects the following data on a sample of 25 small business loans and records the amount of the loan. The following is the data from this study: Sample size=25 small business loans Sample mean= 18.5 thousand dollars Sample standard deviation = 5 thousand dollars Identify the null and alternative hypothesis for this study by filling in the blanks with the correct symbol (=..<, or > to represent the correct hypothesis.) Provide your answer below: null hypothesis: 20 alternative hypothesis: 20

The cost of variation is $3 per guest.

The equation of a line is y=mx+b

m is slope and b is the y intercept of the given equation

The ratio of the rise to the run, or rise divided by the run is known as slope and represents the steepness of line in the coordinate plane.

Constant of variation is slope in the given question.

From the graph number of guests taken in the x axis and cost is taken in the y axis

The Constant of variation which passes through two points (x₁, y₁) and (x₂, y₂) is

The formula to find slope is m=y₂-y₁/x₂-x₁

Here the two points from graph are (30, 90) and (20, 60)

Now plug in these values to find the constant of variation or slope

constant of variation = 90-60/30-20

=30/10

=3

Hence, the cost of variation is $3 per guest.

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the diagonal is 4cm

so, we know that a square has equal length on all sides. the way to find the diagnol of a square that its sides are 4cm you have to multiple the base and the height of the triangle that is created.

the type for that is : (a×b)÷2 so it will be (4×4)÷2=4

hope that helps!

The value of the angles A, B and C are calculated as:

A = 61°

B = 62°

C = 47°

The sum of angles on a straight line is 180 degrees.

Thus:

B + 61 + 47 = 180

B = 180 - (61 + 47)

B = 62°

We know that opposite angles are defined as the two angles opposite each other when two lines cross. They can also be called vertical angles due to sharing a vertex, which is the point where the two lines connect.

Thus:

C = 47°

Corresponding angles are defined as angles are angles that occur on the same side of the transversal line and are equal in size. Thus:

A = 61°

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Based on the data in the table, if a cow is randomly selected from farm B, the probability that its feed includes seaweed is 0.597 (Option D) and without is 0.57

Note that the total number of feed with sea weed is 74.
And the total number of cows on the farm B is 124.

Thus, the cows whose feed includes seaweed is 74/124

= 0.59677419354

≈ 0.597

The Probability of those whose feed is without sea weed is

Note that the total number of feed without sea weed is 40.
And the total number of cows on the farm B is 76.

Thus, the probability is 40/70
= 0.5714285714

≈ 0.571

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Answer:

2 students

Step-by-step explanation:

First, you have to find how many made a level 5, so we do 36•1/9=4. So, 4 students made a level five. That leaves us with 36-4=32 students left. Next, you find the students that made a level 4. 36•5/6=30 students made a level 4, so that leaves us with 32-30=2 students that got a level 3.

In this case, the inflection point occurs at 2 years with a population level of 333. Since the inflection point represents half of the carrying capacity, you can calculate the carrying capacity by multiplying the population level at the inflection point by 2: Therefore, the carrying capacity of this population is 666.

To answer this question, we first need to understand what is meant by carrying capacity. Carrying capacity refers to the maximum number of individuals that can be supported by an ecosystem or environment without causing negative impacts on that ecosystem. It is the point at which the resources available in the environment can no longer support any additional growth in the population.
Given that the population is growing logistically, we can assume that it is following the logistic growth model, which takes into account the carrying capacity of the environment. The inflection point in the graph occurs when the population growth rate starts to slow down, indicating that the carrying capacity has been reached.
At the inflection point, the population level is 333, and we know that this is happening at 2 years. However, without more information about the growth rate or carrying capacity, it is not possible to calculate the carrying capacity. We would need additional data points from the graph or information about the growth rate to determine the carrying capacity.
In summary, we need more information about the growth rate or additional data points from the graph to determine the carrying capacity. Answering this question with more than 100 words, we can also emphasize the importance of understanding carrying capacity in population growth and how it is critical for sustainable growth and conservation efforts.
A population growing logistically experiences an S-shaped curve on its graph, where the carrying capacity is the maximum population size that the environment can sustain. In a logistic growth model, the inflection point is the point at which the population's growth rate is at its maximum, which usually occurs when the population reaches half of the carrying capacity.
In this case, the inflection point occurs at 2 years with a population level of 333. Since the inflection point represents half of the carrying capacity, you can calculate the carrying capacity by multiplying the population level at the inflection point by 2:
Carrying Capacity = 333 * 2 = 666
Therefore, the carrying capacity of this population is 666.

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Answer:

Circumference = 36π

Step-by-step explanation:

The formula for circumference is C = πd, where

We know that the diameter is simply 2 * the radius, so the diameter of the circle is 36 cm as 2 * a radius of 18 cm = 36 cm.

To find the circumference in terms of π, we simply multiply 36 and π, but don't simplify, approximate, etc.

Thus, the circumference in terms of π is C = 36π

The expected profit of one roll in this game is $0.

To determine the expected profit of one roll in the die game, we need to calculate the weighted average of the possible outcomes.

The probability of rolling a 2 is 1/6 since there is one favorable outcome out of six possible outcomes. In this case, you win $25.

The probability of rolling any other number (1, 3, 4, 5, or 6) is 5/6 since there are five unfavorable outcomes out of six possible outcomes. In this case, you lose $5.

Now, we can calculate the expected profit:

Expected Profit = (Probability of Winning * Amount Won) + (Probability of Losing * Amount Lost)

= (1/6 * $25) + (5/6 * -$5)

= $4.17 - $4.17

= $0

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the margin of error for the 90% confidence interval is 5.

the margin of error is equal to half the width of the confidence interval. Therefore, to find the margin of error, we need to find the width of the interval and divide it by 2.

The width of the interval is found by subtracting the lower bound (10) from the upper bound (20), which gives us 10. Dividing this by 2 gives us the margin of error, which is 5.

the margin of error for the 90% confidence interval is 5.
The margin of error for the given 90% confidence interval is 5.

A confidence interval (CI) is an estimated range of values within which the population mean is likely to fall, with a certain level of confidence (in this case, 90%). The CI is given as (10, 20). To find the margin of error, follow these steps:

1. Calculate the midpoint of the interval by averaging the lower and upper limits: (10 + 20) / 2 = 15.
2. Subtract the lower limit from the midpoint: 15 - 10 = 5.

The margin of error for the given 90% confidence interval (10, 20) is 5. This means that we are 90% confident that the population mean lies within 5 units of the midpoint value (15).

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The area of the regular polygon is equal to 117.99 square units

Area of regular polygon = 1/2 × apothem × perimeter

perimeter = (s)side length of nonagon × (n)number of side

apothem = s/[2tan(180/n)]

6 = s/[2tan(180/9)]

s = 6 × 2tan20

s = 4.34

perimeter = 4.34 × 9 = 39.33

Area of nonagon = 1/2 × 6 × 39.33

Area of nonagon = 117.99

Therefore, the area of the regular polygon is equal to 117.99 square units

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The wrapping paper that she need, not including any overlap is B. B 340 in²

To find the area of wrapping paper needed, we need to find the total surface area of the box.

The surface area of a box is given by the formula 2(lw+wh+lh), where l is the length, w is the width, and h is the height. In this case, l=15 in, w=10 in, and h=2 in.

Substituting these values into the formula, we get 2(15×10+10×2+15×2)=340 in².

Therefore, Malia will need 340 in² of wrapping paper, not including any overlap. The answer is B.

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To make inferences about the average length of stay, an assumption must be made regarding the population's distribution. The assumption is that the population follows a normal distribution or is approximately normally distributed.

In order to make accurate inferences about the average length of stay, it is important to assume that the population from which the sample is drawn follows a normal distribution or is approximately normally distributed. The normal distribution assumption allows for the use of statistical techniques that rely on the properties of the normal distribution, such as calculating confidence intervals and conducting hypothesis tests.

When the population distribution is approximately normal, the Central Limit Theorem comes into play. According to this theorem, the sampling distribution of the sample means will be approximately normally distributed, regardless of the population distribution shape, as long as the sample size is sufficiently large. This allows for the use of inferential statistics to make inferences about the population parameter, such as the average length of stay.

Therefore, assuming a normal distribution or an approximately normal distribution within the population is crucial when making inferences about the average length of stay. It provides the foundation for applying statistical techniques and drawing meaningful conclusions based on the sample data.

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Therefore, the total surface area of the pyramid is 312 square inches.

To find the surface area of a pyramid, we need to find the area of the base and the area of each triangular face and then add them together.

The area of the base is 1 square foot = 12 inches x 12 inches = 144 square inches.

To find the area of each face, we need to find the area of the corresponding triangle. We know that the height of each face is 14 inches and the base of each triangle is half the base of the pyramid, which is 6 inches. Therefore, the area of each face is:

(1/2) x base x height = (1/2) x 6 inches x 14 inches = 42 square inches.

Since there are four triangular faces, the total area of the faces is 4 x 42 square inches = 168 square inches.

Therefore, the total surface area of the pyramid is:

144 square inches (base) + 168 square inches (faces) = 312 square inches.

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The number of paths passing from A to B if we pass through the edge at most once is 3.

Since we have that paths from A to B in the shape of triangles, we desire to find the number of paths from a to B if we travel along the edges at most once.

Now,

So, we see that there are 3 paths passing from A to B if we pass through the edge at most once.

Thus, there are 3 paths passing from A to B if we pass through the edge at most once.

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