will mark brainliest, a THX, friend request, and will rate ur answer

Answer:

Step-by-step explanation: 60 x 3= 380

2 x 60= 270

270 + 380= 810

Answer:

6  13/16

Step-by-step explanation:

7+(10-4^2)÷4×1/2^3

PEMDAS says parentheses first

7+(10-16)÷4×1/2^3

7+(-6)÷4×1/2^3

Then exponents

7+(-6)÷4×1/8

Then multiply and divide from left to right

7+(-6)÷4×1/8

7+-3/2 *1/8

7 + -3/16

Add and subtract

6 13/16

If a quantity increases or decreases as per the increase or decrease in other quantity, the two quantities are said to be in a proportional relationship.

And here, the graph representing the proportional relationship is the one with positive slope (2nd graph)

The rate of change in the total amount charged with respect to the time spent on the service call is $40 per hour.

The mathematical concept of rate of change describes how much one quantity changes in relation to another. It is calculated as the difference between the change in the output (the dependent variable) and the change in the input (independent variable).

The rate of change, in other words, informs us of how quickly or slowly something is changing through time or in relation to another variable. When tracking the distance an automobile travels over time, for instance, the rate of change would be the car's speed, which is calculated as the distance traveled divided by the time required.

Slope, which is the ratio of the vertical change (rise) to the horizontal change (run) between two points on a graph, is a common way to depict the rate of change. The rate of change of the dependent variable with respect to the independent variable is depicted by the slope of a straight-line graph.

The rate of change in the total amount charged with respect to the time spent on the service call represents the slope of the graph. We can find the slope of the graph by taking any two points on the line and calculating the change in y (total amount) divided by the change in x (time spent on the service call).

Looking at the graph, we can choose two points: (2, 130) and (8, 370). The change in y is:

370 - 130 = 240

And the change in x is:

8 - 2 = 6

Therefore, the slope (rate of change) of the graph is:

240/6 = 40

So the rate of change in the total amount charged with respect to the time spent on the service call is $40 per hour.

Therefore, the correct option is $40 per hour.

To know more about the rate of change, visit:

https://brainly.com/question/25184007

#SPJ1

Answer:

i think its A

Step-by-step explanation:

Answer:

$16

Step-by-step explanation:

\(0.75x = 12\\3x = 48\\x = 16\)

Answer: 907.46

Step-by-step explanation:

Answer: The initial volume is 593.76mL

Step-by-step explanation:

As you do not say anithing about the pressure, i guess that the pressure remains constant.

If the gas is an ideal gas, we have:

P*V = n*R*T

where P is pressure, n is number of moles and R is a constant.

Now, initially we have:

P*Vi = n*R*315°C

finally we have:

P*825mL = n*R*452°C

Now we can take the quiotient of those two equations and get:

(P*Vi)/(P*852mL) = (n*R*315°C)/( n*R*452°C)

Now we have:

Vi/852mL = 315/452

Vi =  (315/452)*852mL = 593.76mL

So when we expand the gas at constant pressure, we increase the temperature.  

Answer:

691 mL

Step-by-step explanation:

Answer:

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

Step-by-step explanation:

Hey there!

Well point slope form is,

\(y - y_{1} = m(x - x_{1})\)

We can use the point (1,3)

y - 3 = m(x - 1)

Now we need to find slope with the following formula,

\(\frac{y^2-y^1}{x^2-x^1}\), we’ll use the points (1,3) and (5,1).

\(\frac{1-3}{5-1}\)

-2/4

Slope or m = -1/2

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

Hope this helps :)

Thus, the cardinal number of the set E is found to be: N(E) = 6.

A cardinal number describes or expresses how many of anything are present.

So all natural numbers are often refereed to as cardinal numbers. Cardinal numerals have been used for counting. When an ordinal number is an integer that represents the location or place of an object.

The description of a cardinal number is really a number that is used to express quantity in whole numbers. Decimals and fractions are not regarded as cardinal numbers. Natural numbers and numbering numbers constitute cardinal numbers. Each of them is a positive integer.

Given data:

N(CxE) = 18

C = {4, 5, 6)

In which N is the cardinal number, that is the total elements present in the set.

So,

N(C) = 3

Given that: N(CxE) = 18

The formula for the Cartesian product is:

N(CxE) = N(C) * N(E)

18 = 3* N(E)

N(E)  = 18 /3

N(E) = 6

Thus, the cardinal number of the set E is found to be: N(E) = 6.

Know more about the cardinal number

https://brainly.com/question/23933033

#SPJ1

Complete questions:

Find N(E), Given That N(CxE) = 18 And C = {4, 5, 6).

Α. 6

B. 9

C. 3

D. 5

Answer:

69

Step-by-step explanation:

Since the values in the data set has been ranked already from smallest to largest, as shown in the question.

Then calculate the index,

To find the 36th percentile using the data set,

Multiply k (36/100) by n (25) to reach an index of 9.

Then since the index is whole number,

To calculate percentile according to the 'greater than' method, count the values in the data set from smallest to largest until you reach the number ranked 9th

Which is 69.

Since the value for the 36th percentile must be greater than the first nine values, the 10th ranked value would be the kth (36th) percentile. In this data set, that value is 69.

Alternatively, using the 'greater than or equal to' method, after getting the 9th rank,

Include the ninth-ranked value, (69) in this data set.

The kth (36th) percentile is then calculated by taking the average of that value in the data set (69) and the next ranked value (69). (59 + 69) / 2 = 69.

Answer:

Step-by-step explanation:

Given function

The points (-1, 1/6) and (1, 2/3) lie on the graph

Substitute the values of x and y to get the system of equations:

Substitute a and solve for c:

Find a:

The equation of the function:

Answer:

3 15/17  days

Step-by-step explanation:

let the amount of work done to roof the whole house by x

Time taken by homeowner to roof his house = 11 days

In 11 days homeowner can do x work

in 1 day homeowner can do x/11 work

Time taken by professional to roof the house = 6 days

In 6 days professional can do x work

in 1 day professional can do x/6  work

In 1 day total work done, if both professional and homeowner work together

= x/6 + x/11 = (11x + 6x)/11*6 =  17x/66

17x/66 work is done by both in 1 day

we have to calculate total work done by both , to find this we multiply both side by 66/17 to eliminate it from term containing x(which is the total work done to roof the house)

17x/66 *(66/17)work is done by both in 66/17  days

x work is is done by both in 3 15/17  days.

Hence, it will take  3 15/17  days to roof the house,  if the homeowner helps the roofer.

Answer: $277.99

Step-by-step explanation:

There are 52 weeks in a year. Assuming the architect would get paid every week, you would divide their salary by 52.

14,455.32/52 = 277.9869

Rounding to two decimal places, the answer would be $277.99.

Answer:

301.15

Step-by-step explanation:

First multiply 12 by 4. 12 months 4 weeks in each. You get 48 then you divide 14455.32 and you get 301.15.

i think the correct answer is 2 hours and 10 mins

Answer:

230

Step-by-step explanation:

multiply 12 by 15 and add it onto the 50 to get your answer!

Have a good day!

Answer:

The angles remain the same for all values of n. After a dilation, the angle measurements for the image and the preimage are always equal.

Step-by-step explanation:

Answer:

The angles remain the same for all values of n. After a dilation, the angle measurements for the image and the preimage are always equal.

Step-by-step explanation:

The sprinkler's holes have to be 15mm apart and can have a 1mm allowance that space B is bigger than space A, and the notes in space B say "+2" while space A says "-3".

To learn more about length refers to:

brainly.com/question/18077445

#SPJ1

Answer:

$3240 I believe

Step-by-step explanation:

Answer:

hot dog and baloney :>

Step-by-step explanation:

yeet

Answer:

Hot dog and baloney

Chicken and macaroni

Chilling with my homies

I heard it so many times :)

Answer:

the answer is

\( {x}^{ \frac{5}{2} } \)

Answer:

provide graph please then i will give correct answer

The value of the inverse of the equation is this: x³ -3 = y

To find the inverse of the equation follow these steps:

1. Replace H(x) with y.

y = (x + 4)³ - 1

2. Interchange the values of X and Y.

X = (y + 4)³ - 1

3. Find the cube root of both sides

x³ = y + 4  - 1

4. Find the value of y

x³ - 4 + 1 = y

x³ -3 = y

Learn more about the inverse of an equation here:

https://brainly.com/question/3831584

#SPJ1

Answer:

To find the z-score, we use the formula:

z = (x - mu) / (sigma / sqrt(n))

where:

x = sample mean = $5100

mu = population mean = $5000

sigma = population standard deviation = $250

n = sample size = 64

Substituting the values, we get:

z = (5100 - 5000) / (250 / sqrt(64))

z = 2.56

Therefore, the z-score that corresponds to a sample average of $5100 is 2.56 (rounded to four decimals).

Step-by-step explanation:

I clicked on the black picture. thought is was the box to enter the answer.

Answer:

66,667

Step-by-step explanation:

We are given this chart to complete.

0            _______      ________   40,000          _______      _______

0%             20%            40%             60%                80%            100%

We see that 60% corresponds to 40,000. That means that since 20% is 1/3 of 60%, then the number corresponding to 20% is 1/3 of 40,000.

40,000/3 = 13,333

40% is twice 20%, so corresponding to 40%, you must have 2 × 13,333.

For 40%, you write 26,667.

80% is 4 times 20%, so for 80%, you write 4 × 13,333 = 53,333.

Finally, 100% is 5 times 20%, so for 100%, you write 5 × 13,333 = 66,667.

0          _13,333_    _26,667_   40,000       _53,333_    _66,667_

0%           20%            40%             60%             80%            100%

Answer: 66,667

Answer:

ANSWER: Option B.

Step-by-step explanation:

Hey there!

The equation is;

\(x - 3 = 3x - 7\)

Now, Take 'x' to right side and '-7' to left side.

\( - 3 + 7 = 3x - x\)

Simplify them to get answer.

\(4 = 2x\)

\( \frac{4}{2} = x\)

Therefore the value of x is 2.

Hope it helps..

Answer:

\(L(x)=4-x\)

\(L(3.9)=0.1\\L(3.99)=0.01\)

Step-by-step explanation:

The linear approximating polynomial is: \(L(x) = f(a) + f'(a)(x - a)\)

Given: \(f(x) = 4 - x\) at a=0

f(0)=4-0=4

f'(x)=-1, Therefore: f'(a)=-1

Therefore, the linear approximation of f(x) at a=0 is:

\(L(x) = f(0) + f'(a)(x - 0)\\L(x)=4-x\)

We then use our result to approximate 3.9 and 3.99.

\(L(3.9)=4-3.9=0.1\\L(3.99)=4-3.99=0.01\)

The algebraic representation of the expression is (m + n)

sum of m and the number after it

= m + n

Therefore, the algebraic representation of the expression is (m + n)

Learn more about algebra:

https://brainly.com/question/723406

#SPJ1

Answer:

\(\textsf{x = 45}\)

Here, the given 2 angles are complementary angles. The sum is 90 degrees as indicated by the right angle symbol.

\(\textsf {Solving :}\)

\(\implies \textsf{x - 2 + 47 = 90}\)

\(\implies \textsf{x + 45 = 90}\)

\(\implies \textsf{x = 45}\)