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mote1985 [20]
4 years ago
15

The centre of this circle is marked with a cross (*).

Mathematics
1 answer:
notka56 [123]4 years ago
8 0

Answer:

one is radius and the other is chord

Step-by-step explanation:

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Find the value of the csc 40° using your calculator. (I've been having a hard time with this, so it'd be helpful if anyone could
SCORPION-xisa [38]
<span><u><em>The correct answer is: </em></u>
C 1.556.

<u><em>Explanation:</em></u>
This can be found by locating the csc button on your calculator. Typically it is located as the second option below the sin button as it is the inverse function.
If you cannot locate the csc button on your calculator, you can also use </span>\frac{1}{sin(40)}<span> as csc is its inverse.

Also, it is helpful to note that some calculators have both a degrees and a radians mode for trigonometric functions. You will need to make sure that you are in degrees in order to use a calculator to solve this. </span>
7 0
3 years ago
Read 2 more answers
An elevator has a stated maximum capacity of 12 people or 2004 pounds. If 12 people have weights with a mean greater than (2004/
weqwewe [10]

Answer:

a) 0.6517; b) 0.9115; c) No

Step-by-step explanation:

For part a, we will use the formula for a z score of an individual:

z=\frac{X-\mu}{\sigma}\\\\=\frac{167-182.9}{40.8}\\\\=\frac{-15.9}{40.8}\approx -0.39

Using a z table, we see that the area under the curve to the left of this value is 0.3483.  However, we want the probability greater than this, which is the area to the right of this value under the curve; this means we subtract from 1:

1-0.3483 = 0.6517

For part b, we will use the formula for a z score of the mean of a sample:

z=\frac{\bar{X}-\mu}{\sigma \div \sqrt{n}}\\\\=\frac{167-182.9}{40.8\div \sqrt{12}}\\\\=\frac{-15.9}{40.8\div 3.4641}\\\\=\frac{-15.9}{11.778}\approx -1.35

Using a z table, we see that the area under the curve to the left of this value is 0.0885.  This means the area under the curve to the right of this value is

1-0.0885 = 0.9115

For part c,

The fact that the probability that any 12 men on the elevator will have a mean weight greater than 167, putting their total weight above 2004 pounds, is 91% means the elevator does not have the appropriate limit.  There is a high chance the maximum will be exceeded.

8 0
3 years ago
Tan(43)-tan(13)/1+tan(43)tan(13)
kupik [55]

Answer:

tan(13)-tan(2)

Step-by-step explanation:

= Monthsarry namin ng bebe ko

5 0
4 years ago
Read 2 more answers
Geometry math question no Guessing and Please show work
Gala2k [10]

The lines AB and CD are parallel .

GH is the transversal.

The angles marked 5x-10 and 4x+20 are alternate interior angles.

Alternate Interior Angles are a pair of angles on the inner side of each of those two lines but on opposite sides of the transversal.

When the lines are parallel alternate interior angles are equal.

We can form an equation in x using this property.

5x-10=4x+20

We can solve the equation for x.

For this we bring the x term on one side .To bring x term on same side we subtract 4x both sides

5x-4x-10 =4x-4x+20

Simplifying like terms

x-10=20.

With x we have -10

Adding 10 both sides

x-10+10=20+10

x=30.

Option C is the right answer

6 0
4 years ago
Read 2 more answers
Billy found the slope of the line through the points (2,5) and (-2,-5) using the equation
Shkiper50 [21]
Slope is calculated as the change in y over the change in x so you would need to do 5- (-5) which turns the negative sign to a positive making it 5+5=10 and the same thing with the 2s 2-(-2)=4 so the answer would be 10/4 or 5/2. Billy did the reciprocal.

3 0
4 years ago
Read 2 more answers
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