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2 years ago

A person will pay a car dealer a total of $14,196 to be paid in 60 equal monthly installments. What is her monthly bill ?

Mathematics

1 answer:

Snezhnost [94]2 years ago

8 0

Answer:

$236.60

Step-by-step explanation:

You have to divide $14,196 by 60 months to get $236.60.

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Three of these methods gives the correct area of the figure. Which method does NOT?

maw [93]

Ah hah ! NOW I see it. Thanks to BellBell for a good link.

My first impression is a dog bone standing up on one end.

You're talking about the area of the figure, so I'll think that over
before I look at the choices.

I see:

-- 2 semi-circles = 1 whole circle.
and
-- (1 rectangle) minus (a trapezoid).

Now I'll look through the choices.

A). No good. The trapezoid is cut OUT of the figure,
and shouldn't be added into it.

B). Oh ! Yes ! I didn't look at it that way at first, but
I can see how that works. 'B' is good.

C). and D). Yes. This was my description above.

So 'A' is the method that's wrong.

8 0

2 years ago

Helpppp pleaseeeeeeeeeeeeeee

Vesna [10]

Answer:

Find below the calculations of the two areas, each with two methods. The results are:

Upper triangle:

$Area=5000\sqrt{3}units^2$

Lower triangle:

$Area=14,530m^2$

Explanation:

A) Method 1

When you are not given the height, but you are given two sides and the included angle between the two sides, you can use this formula:

$Area=side_1\times side_2\times sin(\alpha)$

Where, $\alpha$ is the measure of the included angle.

1. Upper triangle:

$side_1=200units\\ \\ side_2=100units\\ \\ \alpha =60\º\\ \\ Area=200units\times 100units\times sin(60\º)/2\\ \\ Area=5000\sqrt{3}units^2$

2. Lower triangle:

$side_1=231m\\ \\ side_2=150m\\ \\ \alpha =123\º\\ \\ Area=231m\times 150m\times sin(123\º)/2\\ \\ Area=14,529.96m^2\approx14,530m^2$

B) Method 2

You can find the height of the triangle using trigonometric properties, and then use the very well known formula:

$Area=(1/2)\times base\times height$

Use it for both triangles.

3. Upper triangle:

The trigonometric ratio that you can use is:

$sine(\alpha)=opposite\text{ }leg/hypotenuse$

Notice the height is the opposite leg to the angle of 60º, and the side that measures 100 units is the hypotenuse of that right triangle. Then:

$sin(60\º)=height/100units\\ \\ height=sin(60\º)\times100units\\ \\ height=50\sqrt{3}units$

$Area=(1/2)\times base\times height=(1/2)\times 200units\times 50\sqrt{3}units=5,000\sqrt{3}units^2$

3. Lower triangle:

$sin(180\º-123\º)=height/231m\\ \\ height=sin(57\º)\times 231m\\ \\ height=193.7329m^2$

$Area=(1/2)\times base\times height=(1/2)\times 150m\times 193.7329m^2\\\\ Area=14,529.96m^2\approx 14,530m^2$

5 0

2 years ago

What are the zeros of x^2-5x-1

nexus9112 [7]

The zeros is another name for solutions.

x^2 - 5x - 1 = 0

You must use the quadratic formula to find x.

In the formula, a = 1, b = -5 and c = -1.

Plug into formula and solve for x.

The values of x are the zeros of the function.

3 0

2 years ago

Plz help me will give crown.

Contact [7]

Answer:

1/3

Step-by-step explanation:

-4/15+3/5

-4/15+3×3/5×3

-4/15+9/15

-4+9/15

5/15

1/3

Hope this helps!

7 0

2 years ago

Read 2 more answers

Give at least four different symbols that have been used to represent specific statistical measures. Describe what measure each

natta225 [31]

Answer:

Variance 0²

standard deviation 0×

mean α

median x-bar

Step-by-step explanation:

these are the four different symbols that have been used to represent specific statistical measures like for example, mean which is used to calculate the average value of a sample or population. Variance is the what is expected from the squared standard deviation of a random variable from is average vale/ mean. Median is the value that lies in the middle in a random sample and lastly the standard deviation is the square root of the variance and it measures how the values of sample are spread or how far are they from the mean. these are also commonly use in excel a lot to calculate and evaluate data.

6 0

2 years ago