Pls help
8th math
Pls

a. The independent variable in this function is the amount of time a car is parked, measured in hours. The dependent variable is the cost of parking, measured in dollars.

b. "The cost of parking is a function of the amount of time a car is parked."

c. Here is a possible graph of the function:

           ^

           |

   $12     +--------/-----

           |      /      

           |    /        

           |  /          

   $3      o              

           |              

           |              

           |              

           +--------------->

                 Time

In this graph, the vertical axis represents the cost of parking in dollars, and the horizontal axis represents the amount of time a car is parked in hours. The graph shows a linear relationship between the two variables, with a slope of $3 per hour, up to a maximum cost of $12. This means that the cost of parking increases by $3 for each additional hour of parking, up to a maximum cost of $12.

From the construction of the triangle ABC we get that the measure length of BC is approximately 4.22cm

To construct triangle ABC, we can follow these steps:

To measure the length of BC in triangle ABC, we can use the law of sines.

The law of sines states that in any triangle ABC:

a / sin(A) = b / sin(B) = c / sin(C)

Where a, b, and c are the lengths of the sides of the triangle opposite to the angles A, B, and C, respectively.

In our triangle ABC, we know AB = 6 cm, angle BAC = 96 degrees and angle ABC = 35 degrees. We can find the measure of angle ACB by using the fact that the sum of the angles in a triangle is 180 degrees:

angle ACB = 180 - angle BAC - angle ABC

= 180 - 96 - 35 = 49 degrees

Now, we can apply the law of sines to find the length of BC:

BC / sin(35) = 6 / sin(96)

BC = 6 × sin(35) / sin(96)

Using a calculator, we can evaluate this expression to get:

BC ≈ 4.22 cm

Therefore, the length of BC in triangle ABC is approximately 4.22 cm.

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Step-by-step explanation:

that would be 1/52

since deck means 52

Answer:

y=-1/9x+2.44

Step-by-step explanation:

m=y2-y1/x2-x1

1-2=(-1)

(-5)-4=(-9)

-1/9

y=mx+b

2=-1/9(4)+b

-1/9*4=-0.44444444444

-0.444.... rounded is -0.44

(-0.44)-(-0.44) =0

2-(-0.44 )=2.44

y=-1/9x+2.44

hope this helps

sorry if im wrong i had a lil trouble on this one :(

Answer: \(n\geq17\)

Step-by-step explanation:

Let n= Number of packs John needs.

Tiles in 1 pack = 6

Tiles in n pack = 6n

If he needs at least 100 tiles.

then

6n ≥ 100

\(\Rightarrow\ n\geq100\\\\\Rightarrow\ n\geq\dfrac{100}{6}\\\\\Rightarrow\ n\geq\dfrac{50}{3}\\\\\Rightarrow\ n\geq16.67\\\\\Rightarrow\ n\geq 17\)

The required inequality: \(n\geq17\)

Answer:

Step-by-step explanation:

This is a right triangle; so you can use the Pythagorean Theorem (\(a^2 + b^2 = c^2\)), where a and b are the lengths of the legs and c is the hypotenuse.

You get: \(5^2 + 12^2 = c^2\)

Simplify the expression: \(25 + 144 = c^2\)

Combine like terms: \(169 = c^2\)

Take the square root of both sides: \(\sqrt{169} = \sqrt{c^2}\)

Evaluate: 13 = c

So the answer is letter c ... x = 13

Answer:

158

Step-by-step explanation:

If I is the midpoint of JH, JI= IH

JH= JI +IH

JH= JI +JI (subst. IH= JI)

JH= 2(JI)

Since JI= 79,

JH= 2(79)

JH= 158

The bronze-casting process that depends on a modelled original form is:  lost-wax casting.

Lost-wax casting is a bronze-casting process which is also referred to as the cire-perdue. In this type of metal casting, a wax model is created when a molten metal is usually poured into a mold. The wax model is then melted and drained.

In summary, the name for this bronze-casting process that relies on this wax model is called: lost-wax casting.

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Answer:

Step-by-step explanation:

The error message "Difference order N must be a positive integer scalar" is indicating that there is an issue with the input argument for the diff function.

The diff function is used to calculate the difference between adjacent elements in a vector.
In the code you provided, the line that is causing the error is:
f_prime0 = diff(f,x0,xinc);
To fix this error, you need to ensure that the input arguments for the diff function are correct.

To fix this problem, you need to look at the code in the Newton_Raphson_tutorial function and possibly also the Tutorial_m function. You probably get an error when computing the derivative with the 'diff' function.

However, we can offer some general advice on how to fix this kind of error. The error message suggests that the variable N used to specify the difference order should be a positive integer scalar.

Make sure the variable N is defined correctly and has a positive integer value.

Make sure it is not assigned a non-integer or non-scalar value.

Make sure the arguments to the diff function are correct.

The diff function syntax may vary depending on the programming language or toolbox you are using.

Make sure the variable to differentiate ('f' in this case) is defined and suitable for differentiation.

Make sure that x0 and xinc are both positive integer scalars, and that f is a valid vector or matrix.
Additionally, it's important to check if there are any other errors or issues in the code that could be causing this error message to appear.

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The value of the vector VU is <44, 40>

Vector:

in math vector consist an object that has both a magnitude and a direction.

Given:-

Here we have the vector v and u with the value of v = <11, 5> and the value of u = <4, 8>.

Now, we have to find the value of VU.

In order to find the value of VU, we have to perform the multiplication operation on the given vector,

In order to perform the multiplication on it, we have to arrange them in the following order,

=> VU = <11, 5> x <4,8>

Now, we have to combine the values like the following,

=> <(11 x 4) , (5 x 8)>

Now, do the multiplication then we get,

=> <44, 40>

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Dan rode 7/12 miles farther than walk after school.

Any number of equal parts is represented by a fraction, which also represents a portion of a whole. A fraction, such as one-half, eight-fifths, or three-quarters, indicates how many components of a particular size there are when stated in ordinary English.

To compare both the fractions we will make the denominators similar and then subtract them to know the distance.

So the walking distance is 1/3 miles

This is also equal to 4/12 miles. (By multiplying both denominator and numerator with 4)

Now subtract 11/12 and 4/12

11/12-4/12 = 7/12 miles.

Therefore, Dan rode 7/12 miles farther than walk after school.

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Answer:

1/144

Step-by-step explanation: I presume..

And recall something from Algebra...

I hope it helps...

Square it

And reverse it because of the negative

It is a fraction

Answer:

\( = { \sf{ \frac{1}{ 144 } }}\)

Step-by-step explanation:

\( = { \tt{ \frac{1}{ {12}^{2} } }} = \frac{1}{144} \)

The probability of the events depicted by the spinner are 2/9 respectively.

Recall the relation for probability:

A )

Complete table is the sum of the output of the two spinners :

1st_2nd__ Total

3__2 ____5

3__4 ____7

3__6 ____9

4__2 ____6

4__4 ____8

4__6 ____10

5__2 ____7

5__4 ____9

5__6 ____11

B.)

probability of getting a total of more than 9.

Numbers more than 9 are (10, 11) = required outcome= 2

Total possible outcomes= n(Total) = 9

P(Total above 9) = 2/9

C.)

probability of total less than 7

Numbers less than 7 are (5, 6) = required outcome=2

Total possible outcomes= n(Total) = 9

P(Total less than 7) = 2/9

Therefore, the probability values of each event are 2/9 respectively.

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We have to calculate the estimated standard error and means of the two samples before calculating  the test statistic for a two sample test of means with population variances equal but unknown.

In the given question, we have to explain steps that are necessary before you can calculate the test statistic for a two sample test of means with population variances equal but unknown.

The test statistic for a two-sample independent t-test is derived by dividing the difference between the means of the two samples by the estimated standard error, either pooled or unpooled. The total amount of variation in both groups is gauged by the anticipated standard error.

So we have to calculate the estimated standard error and means of the two samples before calculating  the test statistic for a two sample test of means with population variances equal but unknown.

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Answer: a/b

Step-by-step explanation:

There isn't really an explanation for this but

a ration number has to be able to be written as a fraction

for example, the number 6 is rational

we can prove this because 6 can be written as 6/1.

Answer: $128 and $928

Step-by-step explanation:

Hi! So, first let's find out how much interest Rita gets per year. To find this multiply 0.04 (decimal form of 4 per cent) by 800. We get 32. Rita gets $32 dollars per year in interest. She saves for 4 years, so multiply 32 by 4. We get 128. Rita gets $128 dollars total in interest. Now add 128 + 800 to get 928. Rita's total amount in the account is $928 dollars. All the best!!

Answer:

C. IV

Step-by-step explanation:

All the points on the graph have an x value of -3

The standard deviation is relatively small when the data are all concentrated close to the mean, exhibiting little variation or spread.

The standard deviation could be a degree of the changeability or spread of a set of information. It is calculated by finding the square root of the normal of the squared contrasts between each information point and the cruel(mean).

In other words, it tells us how much the information values are scattered around the mean.

When the information is all concentrated near the cruel(mean), it implies that the contrasts between each information point and the cruel are moderately little.

This comes about in a little while of squared contrasts, which in turn leads to a little standard deviation. On the other hand, when the information is more spread out, it implies that the contrasts between each information point and the cruel are bigger.

This comes about in a bigger entirety of squared contrasts, which in turn leads to a bigger standard deviation.

For case, let's consider two sets of information:

Set A and Set B.

Set A:

2, 3, 4, 5, 6

Set B:

1, 3, 5, 7, 9

Both sets have the same cruel(mean) (4.0), but Set A encompasses a littler standard deviation (1.4) than Set B (2.8).

This is because the information values in Set A are all moderately near to the cruel(mean), while the information values in Set B are more spread out.

Subsequently, we will say that the standard deviation is generally small when the information is all concentrated near the mean, showing a small variety or spread.

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Option c. 0.4926. The effective interest rate with daily compounding is 0.4926 percentage points higher than with monthly compounding.

The viable financing cost is the genuine measure of revenue that Anna pays, considering the building recurrence. To look at the successful loan fee when the interest is accumulated day to day versus month to month, we can utilize the equation:

Viable financing cost = (1 + (expressed loan fee/n))^n - 1

where n is the quantity of intensifying time frames each year. For month to month compounding, n = 12, and for everyday compounding, n = 365.

Connecting the qualities, we get:

For month to month compounding: (1 + (0.1022/12))^12 - 1 = 0.1066 or 10.66%

For everyday compounding: (1 + (0.1022/365))^365 - 1 = 0.1115 or 11.15%

The contrast between the two powerful loan costs is 0.1115 - 0.1066 = 0.0049 or 0.49%, which is around 0.4926 rate focuses. In this manner, the right response is (c) 0.4926 rate focuses.

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That sentence tells us that when you add 9 to Craig's age, the answer is 41 therefore you are simply adding those two and you'll get the equation:

\(c\ +\ 9\ =\ 41\)

Answer:

x=1, y=2

Step-by-step explanation:

thats where they intersect so its the solution

Answer:

23/90

Step-by-step explanation:

Create a variable called "x" with a value of 0.2555 repeating.

10x would be equal to 2.555 repeating.

Calculate 10x - x using these numbers; 2.555 repeating minus 0.2555 repeating is 2.3 (the repeating fives subtract and cancel out). 2.3 is equal to 9x, so to find x, we write the fraction 2.3/9. To get rid of the decimal in the numerator, we multiply both the numerator and the denominator by 10: this gives 23/90. 23 is a prime number, so we know this fraction cannot be simplified further.

well, the bill was $59.17, if we round it by the "tens", the closest to 59 is 60, since 59 is farther from 50 but closer to 60, so it rounds up to 60

\(50\stackrel{farther}{\rule[0.35em]{18em}{0.25pt}59.17}\stackrel{closer}{\rule[0.35em]{2em}{0.25pt}}60 \\\\[-0.35em] ~\dotfill\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{\textit{\LARGE a}\% of \textit{\LARGE b}}\\ \cline{1-1} \\ \left( \cfrac{\textit{\LARGE a}}{100} \right)\cdot \textit{\LARGE b} \\\\ \cline{1-1} \end{array}~\hspace{5em}\stackrel{\textit{15\% of 60}}{\left( \cfrac{15}{100} \right)60}\implies 9\)

Answer:

Step-by-step explanation

5(4m+1)-2m=-13

20m+5-2m=-13

20m-2m=-13-5

18m=-18

m=-1

\(\large\displaystyle\text{$\begin{gathered}\sf \bf{5(4m+1)-2m=-13 } \end{gathered}$}\)

Apply the multiplicative law of distribution.

\(\large\displaystyle\text{$\begin{gathered}\sf \bf{20m+5-2m=-13 } \end{gathered}$}\)

Combine as terms.

\(\large\displaystyle\text{$\begin{gathered}\sf \bf{18m+5=-13 } \end{gathered}$}\)

Rearrange the unknown terms to the left side of the equation.

\(\large\displaystyle\text{$\begin{gathered}\sf \bf{18m=-13-5 } \end{gathered}$}\)

Calculate the sum or difference.

\(\large\displaystyle\text{$\begin{gathered}\sf \bf{18m=-18 } \end{gathered}$}\)

Divide both sides of the equation by the coefficient of the variable.

\(\large\displaystyle\text{$\begin{gathered}\sf \bf{m=-\frac{18}{18} } \end{gathered}$}\)

Solve for the common factor.

\(\large\displaystyle\text{$\begin{gathered}\sf \bf{m=-1 \iff } \end{gathered}$}\boxed{\boxed{\bf{Answer}}}\)

Answer: x/3 ==> C

Step-by-step explanation:

(2x/3)^1/2 * (x/6)^1/2=

(2x/3 * x/6)^1/2=

(2x^2/18)^1/2=

(2x^2)^1/2 / 18^1/2=

(2x^2)^1/2 / (2*9)^1/2=

(2x^2)^1/2 / 3*2^1/2=

2^1/2 * (2x^2)^1/2 / 3*2=

(2(2x^2))^1/2 / 6=

(4x^2)^1/2 / 6=

4^1/2 * (x^2)^1/2 / 6=

2x/6=x/3 ==> C

Answer:

13a-7

Step-by-step explanation:

First step: Multiply the numbers

5*2a-7+3a

10a-7+3a

Second step: Combine like terms :)

10a-7+3a

13a-7

(if its wrong you have every right to report me)

To find the z-statistic, we can use the formula: z = (p-hat - p) / sqrt(p * (1-p) / n). Therefore, the z-statistic for this p-hat is 2.52.

where p-hat is the sample proportion, p is the hypothesized population proportion, and n is the sample size.

Plugging in the values, we get:

z = (0.48 - 0.4) / sqrt(0.4 * 0.6 / 160)
z = 2.52

Therefore, the z-statistic for this p-hat is 2.52.

To calculate the z-statistic for the given p-hat, we will use the following formula:

z = (p-hat - p) / sqrt((p * (1 - p)) / n)

where p-hat is the sample proportion (0.48), p is the hypothesized proportion (0.4), and n is the sample size (160).

z = (0.48 - 0.4) / sqrt((0.4 * (1 - 0.4)) / 160)
z = (0.08) / sqrt(0.24 / 160)
z = 0.08 / 0.030

The z-statistic for this p-hat is approximately 2.67.

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