I’ll give points + brainslist, if you don’t know don’t bother answering (:

Answer:

(x - 3) * 6 = 72

jack earns $ 15 an hour and samuel $12 an hour

Step-by-step explanation:

we know that samuel earns 3 dollars less than jack, let's say that "x" is what jack earns, in addition to this we know that samuel earns a total of 72 dollars in 6 hours, therefore we have to:

(x - 3) * 6 = 72

this would be the equation to determine x, we solve it:

6 * x - 18 = 72

6 * x = 72 + 18

x = 90/6

x = 15

which means that jack earns $ 15 an hour and samuel $12 an hour

Answer:

its C

Step-by-step explanation:

Answer:

The answer is not C

Step-by-step explanation:

The function models the sum is  h(t) = 16t² + 15t + 250. which is the correct answer would be an option (D).

The function is defined as a mathematical expression that defines a relationship between one variable and another variable.

The function f(t) = –16t2 + 250 represents the distance of a dropped object from the ground at any time, t.

The equation g(t) = 15t represents the height of the object if it is tossed upward at a rate of 15 feet per second

Given that

The expression f(t) = -16t²  + 250 and

g(t) = 15t can be combined into

h(t) = -16t²  + 15t + 250.

We cannot combine the two expressions including the variable t.

Additionally, they must be separated, as they are in each of the expressions given.

Since g(t) = 15t is a positive expression,

We may logically assume that h(t) = 16t² + 15t + 250.

Hence, the function models the sum is  h(t) = 16t² + 15t + 250.

Learn more about the function here:

brainly.com/question/12431044

#SPJ6

Answer:

To find c, we can use a standard normal distribution table or a calculator that provides the inverse cumulative distribution function

Step-by-step explanation:

Look up the probability 0.9467 in the body of the table.

The closest value to this probability in the table is 0.9474.

In the row and column headers of the table, find the corresponding values that bracket 0.9474. The row header will give the first digit(s) of c, and the column header will give the second digit(s) of c.

Interpolate within the table to find the exact value of c.

For this problem, we find that c is approximately 1.63.

Answer:

Top right

Step-by-step explanation:

Answer:

Step-by-step explanation:

\(1c-0.25c=0.75c\)

Answer:

Graphs can be used to represent functions

The value of a is less than 0.

The function is given as:

The parent function of f(x) is:

So, by comparison:

The function becomes:

Next, we identify the vertex (in this case, the vertex is the minimum point on the graph)

So, we have:

Substitute these values in

So, the function becomes

From the graph, we have the following point;

So, the function becomes

Subtract 2 from both sides

Square both sides

Divide both sides by -9

So, we have:

-1 is less than 0.

Hence, the value of a is less than 0.

Step-by-step explanation:

Answer:

The value of a in this function is 0

Step-by-step explanation:

The given function is

\(f(x) = a(x + k)^\frac{1}{n} + c.\)

Here , f(x) is y = \(x^{\frac{1}{2} }\) So , n = 2.

By substituting the value we get the function :

\(f(x) = a(x + k)^\frac{1}{2} + c.\)

The vertex of the graphs are : (k, c) = (-5 ,2)

The function becomes:

\(f(x) = a(x + 5)^\frac{1}{2} + 2\)

The following point on the graph shows : (x, y) = (-4 , 5)

The function becomes:

\(5 = a(-4+ 5)^\frac{1}{2} + 2\\5 = a(-9)^\frac{1}{2} + 2\\\\\3 = a(-9)^{\frac{1}{2} }(Subtract 2 from both side )\\\\9 = a (-9) ( Square both sides) \\\\-1 =a ( Divide both side by -9)\\\)

a = -1

Here , -1 is less than zero

Hence , the value of a is less than o.

For more function related doubts visit:https://brainly.com/question/9834848

#SPJ1

The domain of the square root function is x greater-than-or-equal-to 0, since the function is defined for all non-negative x-values or x-values greater than or equal to zero.

The domain of the square root function graphed below can be determined by looking at the x-values of the points on the graph.

From the given information, we can see that the curve starts at (0, -1) and goes through (1, -2) and (4, -3).

The x-values of these points are 0, 1, and 4.

Since the square root function is defined for any non-negative x-values or x-values more than or equal to zero, its domain is x greater-than-or-equal-to 0.

for such more question on domain

https://brainly.com/question/16444481

#SPJ8

This means x = 2, y = 3 and z = 1

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

Work Shown:

Double everything in the second equation to get 4x-2y+4z=6

Add this result to the first equation

\(x+2y-4z = 4\\4x-2y+4z = 6\\5x+0y+0z = 10\)

The first two lines of that expression above shows us adding x+2y-4z=4 to the equation 4x-2y+4z = 6

The x terms add to x+4x = 5x

The y terms add to 2y+(-2y) = 0y

The z terms add to -4z+4z = 0z

The terms on the right hand side add to 4+6 = 10

That's how we end up with the new equation 5x+0y+0z = 10

That becomes 5x = 10 which solves to x = 2 when we divide both sides by 5.

------------------------

Use this x value in the third original equation to find z

3x-8z = -2

3(2)-8z = -2

6-8z = -2

-8z = -2-6

-8z = -8

z = -8/(-8)

z = 1

------------------------

Use the x and z values we found to find y

x+2y-4z = 4

2+2y-4(1) = 4

2+2y-4 = 4

2y-2 = 4

2y = 4+2

2y = 6

y = 6/2

y = 3

----------------------

Overall we get the solutions to be x = 2, y = 3 and z = 1

We can say the solution as an ordered triple is (x,y,z) = (2,3,1)

Answer:

23.6 (approximate value)

Step-by-step explanation:

Answer:

Step-by-step explanation:

23.6

Answer:

Step-by-step explanation:

First write X - Y = 3 as X = 3 +Y.

Then, replace the value of X in the equation XY = 28.

That is, (3 + Y)Y = 28.

Then, we have \(Y^{2} +3Y-28=0\). By solving for Y, we have

Y = 4 and Y = -7. Then, replecing Y in the equation X - Y = 3. We have,

X = 7 and X = -4.

Hence, the points of interseccion are, (7,4) and (-4,7)

Answer: √195 or 13.96424004

Step-by-step explanation:

Answer:

\(\sqrt{195}\)

Step-by-step explanation:

Given:

\(\sqrt{3} \cdot \sqrt{5} \cdot \sqrt{13}\)

\(\textsf{Apply the radical rule} \quad \sqrt{a}\sqrt{b}=\sqrt{ab}:\)

\(\implies \sqrt{3 \cdot 5 \cdot 13}\)

\(\implies \sqrt{15 \cdot 13}\)

\(\implies \sqrt{195}\)

This cannot be simplified any further.

The turning points of the function y = x³ - 3x² - 9x + 4 are (3, -23) and (-1, 9).

To determine the turning points of the given function y = x³ - 3x² - 9x + 4, we need to find the critical points where the derivative of the function is equal to zero.

1. Find the derivative of the function:

  y' = 3x² - 6x - 9

2. Set the derivative equal to zero and solve for x:

  3x² - 6x - 9 = 0

3. Factorize the quadratic equation:

  3(x² - 2x - 3) = 0

4. Solve the quadratic equation by factoring or using the quadratic formula:

  (x - 3)(x + 1) = 0

  This gives us two possible values for x: x = 3 and x = -1.

5. Substitute these critical points back into the original function to find the corresponding y-values:

  For x = 3:

  y = (3)³ - 3(3)² - 9(3) + 4

    = 27 - 27 - 27 + 4

    = -23

  For x = -1:

  y = (-1)³ - 3(-1)² - 9(-1) + 4

    = -1 - 3 + 9 + 4

    = 9

6. Therefore, the turning points are (3, -23) and (-1, 9).

Note: It appears that there was a typo in the original equation, where the term "-9x" should have been "-3x²". The above solution assumes the corrected equation.

For more such questions on points, click on:

https://brainly.com/question/26865

#SPJ8

Based on the information provided, Nico is correct because he used the correct representation for the fraction "Negative four-fifths."

Nico correctly understood that "Negative four-fifths" means a fraction with a negative sign and a numerator of 4 and a denominator of 5. So he correctly represented it as "-4/5."

Lorena, on the other hand, made a mistake in representing "Negative four-fifths." She wrote it as "-4/-5." However, when you have a negative sign in both the numerator and the denominator, they cancel out each other, resulting in a positive fraction. So "-4/-5" simplifies to "4/5" instead of "-4/5."

Nico correctly expressed the fraction as "-4/5," which is the standard way to represent a negative fraction. On the other hand, Lorena incorrectly represented "Negative four-fifths" as "-4/-5," which is equivalent to "4/5." Therefore, Nico's solution is correct, and Lorena's solution is incorrect.

Learn more about fractions on

https://brainly.com/question/78672

#SPJ1

Answer:

-8

Step-by-step explanation:

multiply for on both sides then divide by 3

I think its B because

your multiply 4 on both sides

and then you divide by 3

Answer:Hello, my name is woods245 and I'm here to answer you question.

So you have the equation 3 over 4x=-6 right.

Well first you put 3 over 4x like this 3/4x=-6. then you divide -6 and 3/4 and get -0.5x. that's your answer to your math problem.

Step-by-step explanation:

Answer:

I think the X is equal to 45

Equation:

Procedure:

0. Simplifying both sides of the equation:

2. Getting the x on one side and the constants on the other:

3. Dividing both sides by -1:

By doing this, the sing will change as follows:

Answer:

We will determine the value for each variable respectively as follows:

*1st:

*2nd:

*3rd:

*4th:

Answer:

There is only one solution.

Step-by-step explanation:

The two lines only cross once, so there is one solution.

If the lines did not cross at all, there would be no solutions.

If the lines crossed twice, then there would be two solutions.

If the lines were on top of one another, they would be the same line, and have an infinite amount of solutions.

A system of equations is shown on the graph below has Unique solution.

What is Line segment?

A line segment is a part of line having two endpoints and it is bounded by two distinct end points and contain every point on the line that is between its endpoint.

Given that;

The graph is shown in figure.

Now,

Since, In the graph the two line segment cut into one point.

Hence, The system of equation shown in graph has Unique solution.

Thus, A system of equations is shown on the graph below has Unique solution.

Learn more about the system of equation visit:

https://brainly.com/question/12526075

#SPJ6

Answer:

arc = 9π units

Step-by-step explanation:

the arc is half the circumference of the circle, then

arc = \(\frac{1}{2}\) × 2πr = πr , then

arc = π × 9 = 9π

Answer:

\(\boxed{\tt 9\pi }\)

Step-by-step explanation:

What we want to find here is the arc length of 1/2 of a circle, we'll start by finding the of the circle.

Step 1:- find the circumference of the circle →

\(\boxed{\sf Circumference\; of\; the \:circle=2\pi r}\)

\(\tt 2\pi \times 9\)

\(\tt 9\times 2\pi\)

\(=\tt 18\pi\)

Step 2:- find the arc length of 1/2 of the circle →

The arc length is 1/2 of the circumference of the circle:-

\(\boxed{\sf Circumference \; of \;\cfrac{1}{2}\; of\; the \; circle=\cfrac{1}{2}\times 18\pi}\)

\(\tt \cfrac{18}{2} \pi\)

\(\boxed{\tt 9\pi}\)

Therefore, the arc length of the semicircle is 9π.

Answer: $68.4

Step-by-step explanation:

Given: Annual Premium = $110

Average insurance payout = $1600

Likelihood of having an accident= 2.6% = 0.026 [we divide perecnt by 100 to convert it into decimal]

Then, Expected value = (Annual Premium) - (Likelihood of having an accident) x (Average insurance payout )

= $110  - (0.026) x ($1600)

= $(110-41.6)

= $68.4

Hence, the company's expected value of this insurance policy : $68.4

The area, in square inches, of the painted face of the brick is; 144 in²

The area of a square is given by;

A = L²

where;

L is the length of the side of the square

The sides of a square all have the same length, and as such we just need to find the length of one side.

The length of the side of the square here is the distance between two vertices, which can be calculated as

L = √[(x₂ - x₁)² + (y₂ - y₁)²]

However, to avoid long process, since it is a square, we can use subtraction of coordinates to get the side length which is gotten by using the first 3 coordinates;

Horizontal length = (6 + 6) = 12

Thus;

Area = L² = 12² = 144 in²

Read more about area of square coordinates at; https://brainly.com/question/14698897

#SPJ1

Answer:

y = -2/3 x - 13/3

Step-by-step explanation:

y = -2/3 x + 3/2

y = mx + b

m = -2/3

The slope of the given line is -2/3. Parallel lines have equal slopes, so our line also has slope -2/3.

m = -2/3

y = mx + b

y = -2/3 x + b

Substitute the given point for x and y and solve for b.

-7 = -2/3 (4) + b

-21/3 = -8/3 + b

b = -13/3

Answer: y = -2/3 x - 13/3

Answer: x = -1 and y = 9

Step-by-step explanation:

To solve this system of equations, we can use the substitution method.

First, solve the first equation for y:

y = -x + 8

Now, substitute this expression for y into the second equation and solve for x:

4x + y = 5

4x + (-x + 8) = 5 (substituting -x + 8 for y)

3x + 8 = 5

3x = -3

x = -1

Now that we have found the value of x, we can substitute it back into one of the original equations to solve for y. Let's use the first equation:

y = -x + 8

y = -(-1) + 8

y = 9

Therefore, the solution to the system of equations is x = -1 and y = 9.

Answer:

okay I will explain but where is that's knid of question