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kompoz [17]
2 years ago
12

Help please and show work 30 points

Mathematics
1 answer:
grin007 [14]2 years ago
6 0

Answer:

The pair of shoes equal 18.

The boat equals 3

The chair equals 4

Step-by-step explanation:

Let x = shoes

You found the palm trees!

So the top picture would be

18 + x = 2x  Subtract x from both sides

18 = x  We found the value of the shoes.

Let's go so the last picture.  We now know the shoes.

Let x = the boat now

18 = 6x  Divide both sides by 6

x = 3  We found the value of the boat.

Finally, let's look at the second picture.

Let x = the chair now

3 + x = 7  Subtract 3 from both sides

x = 4  We found the value of the chair.

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Two accounting professors decided to compare the variance of their grading procedures. To accomplish this, they each graded the
galina1969 [7]

The degrees of freedom for the numerator of the F ratio can be calculated to be 9.

<h3>How many degrees of freedom is the numerator of the F ratio?</h3>

The degrees of freedom for the numerator can be found to be:

= number of exams graded - 1

Solving gives:

= 10 - 1

= 9

In conclusion, the degrees of freedom for the numerator of the F ratio is 9.

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4 0
2 years ago
On a coordinate plane, a parabola opens up. It goes through (negative 2, 4), has a vertex at (0.25, negative 6), and goes throug
serg [7]

The statements true about the the function f(x) = 2x2 – x – 6 are-

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<h3>What is vertex of parabola?</h3>

The vertex of parabola is the point at the intersection of parabola and its line of symmetry.

Now the given function is,

f(x) = 2x^2 – x – 6

Also, it is given that the vertex is located at (0.25, -6)  and the parabola opens up, the function has two x-intercepts.

Comparing the given function with standard form,

f(x) = a x^2 bx + c

By comprison we get,

a = 2

b = -1

c = -6

Now, x-coordinate of vertex is given as,

x = -b/2a

put the values we get,

x = -(-1)/2*2

or, x = 1/4

Put the value of x in given function, so y-coordinate of the vertex is given as,

f(1/4) = 2(1/4)² - 1/4 - 6

        = -49/6

       = -6 1/8

Hence, The statements true about the the function f(x) = 2x2 – x – 6 are-

  • The vertex of the function is (one-quarter, negative 6 and one-eighth).
  • The function has two x-intercepts.

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3 0
1 year ago
How do you find the distance between -2 and 3 on a number line
Masteriza [31]

If you draw the line and mark -2 and 3 you find that they are 5 apart. By calculation, subtract the lowest from the highest: 3 - -2 = 3+2 = 5

6 0
3 years ago
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Find the surface area of the cylinder. radius of 6. height of 7.
Sauron [17]

Answer:

SA = 156π

Step-by-step explanation:

The formula for surface area of a cylinder is

SA = 2πr² + 2πrh   where r is the base radius, and h is the height.

We are given r = 6 and h = 7.  Plug in those values and evaluate...

SA = 2π(6²) + 2π(6)(7)

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SA = 72π + 84π

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3 years ago
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a hotel charges $225 per night to rent a suite. the hotel also charges $75 per day for full room service. of ashley and jessica
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Well, 225 + 75 = 300. So, that means 300 dollars per night. 1,200 ÷ 300 =400

400 Is the answer.
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3 years ago
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