please help me with this precalc question

Answer:

heres b i cant answer c cause i dont really understand it sorry Q-Q

Step-by-step explanation:

(b) Dunes Beach

In 15 yr, Dunes Beach builds up from 20 ft to 95 ft.

The rate of buildup is 75 ft/15 yr = 5 ft/yr.

Answer: the prime ribs

Step-by-step explanation: the prime ribs cost about 6 dollars per pound and the car cost about 5 dollars per pound

Answer:

Prime Rib

Step-by-step explanation:

Also, DPP stands for Dollar Per Pound

Prime Rib:

\(\frac{31.35}{5} = 6.27 DPP\)

Small Car:

\(\frac{6492}{1200} = 5.41 DPP\)

As the question is asking for which cost more per pound, the answer is Prime Rib

(a) The graph of the linear functions is as attached.

(b) The equation of the linear function in slope-intercept form is; y = x

(c) The equation of the transformed function in slope-intercept form is;

y = x + 2 and y = x - 3

Functions are defined as the relationship between sets of values. For example, in the function; y = f(x), for every value of x there exists a set of y values.

x is the independent variable.

y is the dependent variable.

If the linear function is; y = x,

The equation of the transformation in slope-intercept form is given as;

For translation of 2 units up, we have;

y = x + 2

For a translation of 3 units down, we have;

y = x - 3

Thus, the required graph has been attached and the solution is determined.

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Let be "x" the number that represents 100%.

According to the information given in the exercise, 96 is 60% of the number "x".

Then, you can set up the following proportion:

Now you need to solve for "x" in order to find its value:

Hence, the answer is:

Suav would have run approximately \($970$\) miles in \($25$\) weeks, to the nearest whole number.

What are the whole numbers?

Whole numbers are the set of numbers that include all positive integers (1, 2, 3, ...) as well as zero (0). Whole numbers do not include any negative numbers or fractions. Therefore, the set of whole numbers is {0, 1, 2, 3, ...}.

Suav runs \($20$\) miles the first week. Let's use a formula to calculate the number of miles he runs in subsequent weeks. Let \($m$\) be the number of miles he runs in a particular week, and \($w$\) be the number of weeks elapsed since the first week. Then, we have:

\($$m = 20 \cdot 1.05^{w-1}$$\)

This formula takes into account the \($5%$\) increase in miles each week, starting from the initial \($20$\) miles in the first week.

To find the total number of miles Suav runs over \($25$\) weeks, we can sum up the miles he runs in each week using the formula above. That is,

\($$\text{Total miles} = 20 + m_2 + m_3 + \cdots + m_{25}$$\)

where \($m_2, m_3, \ldots, m_{25}$\) are the number of miles he runs in the second to \(25$th\) week, respectively.

We can use the formula for \($m$\) to find each of these values. For example, the number of miles he runs in the second week is:

\($$m_2 = 20 \cdot 1.05^{2-1} = 21$$\)

Similarly, we can find the number of miles he runs in each of the other weeks:

\(m_3 &= 20 \cdot 1.05^{3-1} = 22.05\)

\(m_4 &= 20 \cdot 1.05^{4-1} = 23.103\)

\(&\vdots\)

\(m_{25} &= 20 \cdot 1.05^{25-1} = 57.597\)

Now, we can substitute these values into the formula for the total miles and simplify:

\(\text{Total miles} &= 20 + 21 + 22.05 + \cdots + 57.597 \&\approx 970\)

Therefore, Suav would have run approximately \($970$\) miles in \($25$\) weeks, to the nearest whole number.

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Answer

well if it is 5% each week, then it would be 20 +1. doing this for 25 weeks means it would be 20 + 25 then.

Sorry if wrong. i don't know if u do 5% after each time or from the main number. it doesn't say weather or not.

Step-by-step explanation:

p lz give me brainliest

Answer:

The answer is 175 grams

Step-by-step explanation:

100 than 150, its close to 175 if u estimate

The total number of arrangements is 1,152.

There are 4 husband-wife pairs, which we can treat as units. We can first arrange the wives in any order, which can be done in 4! = 24 ways. Once the wives are arranged, we can arrange the husbands to the right of their wives. The first husband can take any of the 4 available slots to the right of his wife, the second husband can take any of the remaining 3 slots, and so on.

Therefore, the total number of arrangements is:

4! x 4 x 3 x 2 x 1 = 1,152.

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if the visitor runs at a rate of 6 mph and swims at a rate of 2.5 mph., then the visitor  would run 14 .45 miles  before swimming to minimize the time it takes to reach the island .

we are given that an island is 1 mi due north of its closest point along a straight shoreline., where the visitor is staying at a cabin on the shore that is 15 mi west of that point, in some point the visitor runs at a rate of 6 mph and swims at a rate of 2.5 mph. Considering x be the distance the visitor runs. so the total time will be :

Time (T)= x/6 + √((15-x)²+1²)/2.5

Differntiating both sides respect to  x , we get

dT/dx = 1/6 -(15-x)/√(15-x)²+1)/2.5

=>1/6 = (15-x)/√(15-x)²+1)/2.5

=>6(15-x) = 2.5√(15-x)²+1)

Now considering   15 - x = y, we get  

=>6y = 2.5√(y²+1)

=>36y² = 6.25y² + 6.25

=>29.75y² = 6.25

y = √(25/119),  therefore ,x = 15 - √(25/119) = 14 .45

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Answer: Yes, $9.

Step-by-step explanation:

From what I understand, since the table isn't showing: \

Dinner bill $25:$4.50 tip, $30:$5.40, etc..

To find if Bill is proportional, we need to find the rate of each tip to Bill  and see if they match.

$25/$4.50 =5.555555555...

$30/$5.40 =5.555555555...

$35/$6.30 =5.555555555...

$40/$7.20 =5.555555555...

The rate is the same for each one, so yes, the amount of the donation proportional to the dinner bill.

To find the donation for a bill of $50, divide by the rate we found above.

\(Tip=$50/5.555555555=9.000...\)

Answer:

48

Step-by-step explanation:

I'm assuming it's just multiplication with given info

m3n = (8)3(2) = 24(2) = 48

Step-by-step explanation:

(1, -3). (3, 0)

(0 + 3)/(3 - 1) = 3/2 is the slope

Answer: 15

Step-by-step explanation:

no

Answer:

15

Step-by-step explanation:

ITS RIGHT

Answer:

i d k but stream wildside and rumors

Step-by-step explanation:

The information provided indicates that it will take 78 minutes to load.

Time may be described in mathematics as a continuing and continuous series of events that take place one after another, from the past through the present, and into the future. The length of events or the gaps between them may be measured, compared, or even ordered using time.

If loading three and a half trucks takes 42 minutes, loading one truck will take 42 / 3.5 minutes, or 12 minutes. The time needed to load is calculated by multiplying the minutes per vehicle by 6.5. In this scenario, it would take 78 minutes to load 6 1/2 trucks (12 x 6.5). The time taken is calculated using the formula t = 12n, where n indicates the number of trucks and t is the time in minutes.

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The alternative and hull hypotheses is H₀: P=0.03, H₁: P≠0.03.

Given that,

According to a representative of the Ohio Department of Education, 3% of graduating high school seniors in Ohio have dropped out in recent years. Out of the 600 pupils enrolled, 30 students from Podunk High School dropped out of school last year.

We have to find is there enough data to say that this school's dropout rate is higher than the state average. Using symbols and words, state the alternative and hull hypotheses.

We know that,

n is 600,

3% Ohio high school seniors dropout.

30 dropout out of 600 in Podunk high school.

Here,

H₀: μ₁=μ₂  vs   H₁:μ₁≠μ₂

In coordinates,

H₀⇒ dropout number is equal for both schools.

H₁⇒ dropout number not equal for both schools.

H₀: P=0.03, H₁: P≠0.03.

Therefore, The alternative and hull hypotheses is H₀: P=0.03, H₁: P≠0.03.

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Answer:

I don't know maybe you should search google. Best of Luck!

Step-by-step explanation:

Answer:

big money

Step-by-step explanation:

Since the area of B is 9 times the area of A, we know that the sides of B are √9= 3 times the length of the sides of A.

That's how.

Since 4 peaches x 2 =8, you would would only be able to buy 6 mangos since $1.25 x 6 mangos =$7.5 so it would be $7.5+$8=$15.5 and 6 mangos+4 peaches=10 in total. And he would also save $5.00! :)

Please mark brainliest!

Hope it helps!

A confidence interval cannot instantly lead to rejecting the null hypothesis in a hypothesis test. In the given case the null hypothesis is either rejected or rejected based on test statistics.

α = 0.05

μ = 2

If the confidence interval is 1.0 or 2.0, then the null hypothesis value of 2 drops exceeds the interval, this makes the data contradict the null hypothesis and may reject the null hypothesis.

This alone would not be good to decline the null theory - the conclusion to reject or not reject the null hypothesis is determined by the test statistic and the alternate p-value.

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Positive correlations reflect relationships between variables that are desirable, while negative correlations reflect relationships between variables that are not desirable is a "true" statement.

Two variables which move together, or in the same direction, are said to have a positive correlation.

Some characteristics of positive correlation are-

When two variables have an inverse or negative correlation, one variable rises while the other falls, and vice versa.

Some characteristics of negative correlation are-

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The complete question is-

Positive correlations reflect relationships between variables that are desirable, while negative correlations reflect relationships between variables that are not desirable.(true/false)

Answer:

P=60

Step-by-step explanation:

P=2(l+w)

P=2(14+16)

P=2(30)

P=60

Perimeter of a rectangle with 16in length and 14in width is 60 in.

Perimeter of a rectangle = 2(l+b)

here l = length and b= width

Given : l= 16 in and b= 14 in

perimeter = 2(l+b)

= 2(16+14)

= 2(30)

=60 inches.

The perimeter of rectangle is 60 inches

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Answer:

13.6

Step-by-step explanation:

To find the mean number of movies that the students saw, we add up all the reported numbers of movies and then divide by the total number of students (which is 8 in this case).

Adding up the reported numbers of movies:

4 + 17 + 17 + 20 + 13 + 4 + 16 + 18 = 109

Dividing by the number of students:

109/8 = 13.625

Rounding to the nearest tenth:

Mean number of movies seen = 13.6

Therefore, the mean number of movies that the students saw, rounded to the nearest tenth, is 13.6.

Answer: 13.6

Step-by-step explanation:

Your basically finding the average:

(4+17+17+20+13+4+16+18)/8 = 13.6

Answer:

W/O insurance: 235.50

with insurance: 1597.94

Step-by-step explanation:

Weighted Average:

annual premium 1      $1,580.00 $0

single doctor visit 0.3      $7.50        $105

two doctor visits 0.18      $9.00        $126

medication        0.06      $1.44         $5

                              $1,597.94 $235.50

Answers:

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

Explanation:

Parallel lines always have equal slopes, but different y intercepts. For example, the two lines y = 3x+5 and y = 3x+7 have a slope of 3. Refer to y = mx+b where m is the slope. Parallel lines never intersect.

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For perpendicular lines, the two slopes always multiply to -1 assuming neither line is vertical nor horizontal. Consider the two linear equations

y = (1/2)x+5

y = -2x-7

The slopes 1/2 and -2 multiply to -1 which is enough to show that they are perpendicular lines. The two lines meet at a 90 degree angle.

To go from one slope to the other, we apply the negative reciprocal. That means we...

Applying the first step to 1/2 gets us 2/1 or 2. Then changing the sign has us go from 2 to -2. This process can be reversed.

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For some of these equations, you'll need to rearrange things into either point-slope form or slope intercept form. This will allow you to read off the slope.

Point slope form is y-y1 = m(x-x1)

Slope intercept form is y = mx+b

For either case, all we care about is the variable m.

I'll show how problem 14 transforms into slope intercept form

x+2y = 14

2y = -x+14

y = (-x+14)/2

y = (-x/2) + (14/2)

y = (-1/2)x + 7

We see that m = -1/2 here. Anything parallel to this will have the same slope. The perpendicular slope is 2 after applying the negative reciprocal operation. Problems 13, 15, 16, 17, and 18 are going to follow similar steps.

T he joint moment generating function of x and y is M(t1, t2) = (1/36)Σx=1^6Σz=1^6 e^(t1x + t2z)

Let X be the value of the first die, which takes on values {1, 2, 3, 4, 5, 6} with equal probability of 1/6 each. Let Y be the sum of the values of two dice, so Y takes on values {2, 3, ..., 12}.

The joint moment generating function of X and Y is given by:

M(t1, t2) = E[e^(t1X + t2Y)]

To compute this, we can use the law of total probability and conditioning on the value of X:

M(t1, t2) = E[e^(t1X + t2Y)]

= Σx P(X=x) E[e^(t1X + t2Y) | X=x]

= (1/6)Σx=1^6 E[e^(t1x + t2Y) | X=x]

Now we need to compute E[e^(t1x + t2Y) | X=x]. We can use the fact that the sum of two dice is the sum of two independent uniform random variables on {1, 2, 3, 4, 5, 6}:

E[e^(t1x + t2Y) | X=x] = E[e^(t1x + t2(x+Z))]

= E[e^(tx) e^(t2Z)]

= MZ(t2) e^(tx)

where Z is a uniform random variable on {1, 2, 3, 4, 5, 6} and MZ(t2) is its moment generating function, which is:

MZ(t2) = E[e^(t2Z)]

= (1/6)Σz=1^6 e^(t2z)

Substituting this back into the expression for M(t1, t2), we get:

M(t1, t2) = (1/6)Σx=1^6 E[e^(t1x + t2Y) | X=x]

= (1/6)Σx=1^6 MZ(t2) e^(tx)

= (1/6)Σx=1^6 [(1/6)Σz=1^6 e^(t2z)] e^(tx)

Simplifying the expression, we get:

M(t1, t2) = (1/36)Σx=1^6Σz=1^6 e^(t1x + t2z)

This is the joint moment generating function of X and Y.

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The expression 1 + 3² can be evaluated as follows:

First, we calculate 3², which is equal to 9.

Then, we add 1 to 9, which gives us 10.

Therefore, 1 + 3² = 10.

Answer:

Step-by-step explanation:

1 +\(3^{2}\)

= 1 + (3*3)

= 1 + 9

= 10

Answer:

24,024 different ways

Step-by-step explanation:

There are 9 boys and 13 girls competing for the medals. The number of ways to choose 3 boys out of 9 is C(9,3) = 84. The number of ways to choose 3 girls out of 13 is C(13,3) = 286. The total number of ways to choose 6 medals is the product of these two numbers: 84 * 286 = 24024.