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irakobra [83]
3 years ago
10

Verify the Pythagorean Identity.

Mathematics
1 answer:
tigry1 [53]3 years ago
8 0
To solve this problem you must apply the proccedure shown below. You have that:

 1+cot^2θ=csc^2θ    (You have that cos^2θ+sin^2θ=1)<span>
 1+(cos^2</span>θ/sin^2θ)=csc^2θ
 1+(1-sin^2θ/sin^2θ)csc^2θ
 sin^2θ+1-sin^2θ=csc^2θ
 1/sin^2=csc^2   (You have that 1/sin=csc) 
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How many solutions does this equation have? 6x-2=6x+7
Anon25 [30]

None, the equation 6x - 2 = 6x + 7 does not have any solutions.

<h3>What is an algebraic equation? </h3>

An algebraic equation is an equation that consists of numbers and variables. To solve the variables, there is a need to make use of some or all of the arithmetic operations such as:

  • Addition
  • Subtraction
  • Division, and
  • Multiplication

From the given equation:

6x - 2 = 6x + 7

Collect like terms

6x - 6x -2 - 7 = 0

0 - 9 = 0

Since there is no variable to solve for in the equation, we can conclude that the equation does not have any solutions.

Learn more about algebraic equations here:

brainly.com/question/4344214

6 0
3 years ago
Read 2 more answers
A number m is more than -7 2/3 or at most -10
frutty [35]

This situation is represented by the following disjoint inequality:

m > -\frac{23}{3} \cup m \leq -10

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

  • The format of a <u>disjoint inequality</u> is:

x > a \cup x \leq b

  • Which is read as: x is more than a or at most b.

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

  • In this question, we have number m more than -7\frac{2}{3} = -7 - \frac{2}{3} = -\frac{21}{3} - \frac{2}{3} = -\frac{23}{3} and at most -10, thus, the disjoint inequality that represents this situation is:

m > -\frac{23}{3} \cup m \leq -10

A similar problem is given at brainly.com/question/24528399

4 0
3 years ago
Consider this sphere inside the cylinder. Which statements are true? Check all that apply. NEED HELP ASAP​
-Dominant- [34]

Option A: The height of the cylinder is equal to the diameter of the sphere.

Option C: The radius of the sphere is half the height of the cylinder.

Option E: The volume of the sphere is two-thirds the volume of the cylinder.

Solution:

The sphere is inside the cylinder.

Let r be the radius of the sphere.

Option A: The height of the cylinder is equal to the diameter of the sphere.

The sphere is fully occupied the cylinder.

If we draw the vertical line through enter of the sphere, which is equal to the height of cylinder.That is h = d. It is true.

Option B: The height of the cylinder is two times the diameter of the sphere.

That is h = 2d. From the above option, we know that h = d.

So, it is not true.

Option C: The radius of the sphere is half the height of the cylinder.

we know that diameter = 2 × radius (d = 2r)

From option A, we have h = d.

Substitute d = 2r, we get

⇒ h = 2r

Divide by 2 on both sides, we get

$\Rightarrow \frac{h}{2}=r

Therefore, it is true.

Option D: The diameter of the sphere is equal to the radius of the cylinder.

It is not true, because diameters of both cylinder and sphere are equal.

Option E: The volume of the sphere is two-thirds the volume of the cylinder.

Radius of cylinder and sphere = r

Height of cylinder h = 2r (by option C)

Volume of cylinder = Volume of sphere

  $\Rightarrow \pi r^2 h = \frac{4}{3} \pi r^3 (formula)

$\Rightarrow \pi r^2 (2r) = \frac{2\times2}{3} \pi r^3

$\Rightarrow 2 \pi r^3= \frac{2}{3} \times 2\pi r^3

Hence it is true.

Option A, option C and option E are true.

6 0
4 years ago
Read 2 more answers
A rectangle on a coordinate plane has vertices at (7, 5), (–7, 5), (–7, –2), and (7, –2). What is the perimeter of the rectangle
Vinvika [58]
1) Dimensions of rectangle are 14 and 7. Perimeter is:
    2*(14+7) = 42.

2)Let the number of students who chose Tiger be x.
Number of students who chose Bulldog is 4*x.
Number of students who chose Lion is 2*x.
7x = 273  -> x=273/7=39.
Answer is 2*x=78.

3) The answer is B).
A and C aren't answers because they start with positive and end with negative numbers and D isn't answer because -6 1/4 is greater than -6,53.
3 0
4 years ago
What is a rational number between 10.2 and 10.3
ycow [4]
Hola!

A rational number could range from 10.21 to 10.2001

Hope that helped :)
4 0
3 years ago
Read 2 more answers
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