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miskamm [114]
3 years ago
8

Find 0.Trigonometry problems.

Mathematics
1 answer:
aivan3 [116]3 years ago
6 0

In the triangle with legs 7 and 9 cm, you can find the length of the hypotenuse by using the Pythagorean theorem. If the hypotenuse is x, then

7^2+9^2=x^2\implies x=\sqrt{130}

The other right triangle with leg 6 cm and containing the angle \theta satisfies

\sin\theta=\dfrac{6\,\rm cm}{\sqrt{130}\,\rm cm}\implies\theta=\sin^{-1}\dfrac6{\sqrt{130}}\approx31.75^\circ

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Please need help you know this
Alex_Xolod [135]

Answer:

Rule: Output = 2 * input + 1

Right blank: Output  = - 1

Left blank: Input = 4

Step-by-step explanation:

Rule

Start with the rule

Output = 2 * input + 1

Let the output = y

Let the input = x

y = 2x + 1

Now

Right Blank

x = - 1

y = 2*-1 + 1

y = -2 + 1

y = - 1

That's the output for -2

Left Blank

The second blank asks you to solve for the input (x) The output (y) is 9

9 = 2x + 1                 Subtract 1 from both sides

9-1 = 2x                    Combine

8 = 2x                       Divide by 2

8/2 = 2x/2

x = 4

8 0
3 years ago
Can someone pleaseeee help me out ??
Artyom0805 [142]

Answer:

3

Step-by-step explanation:

Factor out 3 since it is the max you can factor out

3(3-4x+2y)

8 0
3 years ago
Read 2 more answers
Which number produces an irrational number when multiplied by 1/3
xz_007 [3.2K]

Answer:

D. 0.166

Step-by-step explanation:

A. and B. when divided by 1/3 result in whole numbers and C. when divided by 1/3 results in a negative which is not irrational but D. results in a fraction.

6 0
3 years ago
Which expression represents the perimeter of the figure in the diagram?
DedPeter [7]

Answer:  [B}:  " 20a-2 " .

____________________________________

<u>Step-by-step explanation</u>:

The perimeter, "P", of the given quadrilateral [which is a trapezoid];  refers to the value of the sum of all the [Four (4) — in this case] side lengths of the given quadrilateral.  

Note that the all the [four (4)] side lengths are given.

The answer choices provided are "simplified expressions" that all contain one variable; which is— "a" .

Note that all side lengths of the figure have side lengths that contain one variable—which is— "a" .

____________________________________

So, to calculate the perimeter, "P" :

Let us add up all the 4 (four) given side lengths of this quadrilateral:

P = (5a − 7) + (7a + 2) + (4a + 3) + (4a) ;

  = 5a − 7 + 7a + 2 + 4a + 3 + 4a  ;

Now, combined the "like terms" ; as follows:

     →   +5a + 7a + 4a + 4a ;

  =  (+5a + 7a) + 4a + 4a ;  

  = +12a + 4a + 4a ;

  = (+12a + 4a) + 4a ;

  =  (+16a) + 4a ;

  =  +20a ;

     →   − 7 + 2 + 3 ;

 =   − 5 + 3 ;

 =  − 2 ;

____________________________________

And we have:

____________________________________

 →   +20a − 2 ;  

 →  which is:  Answer choice:  [B]:  " 20a -2 " .

____________________________________

Hope this helps!

Best wishes to you in your academic endeavors

   — and within the "Brainly" community!

____________________________________

5 0
3 years ago
Read 2 more answers
What is the solution to this equation 5x=-60<br><br> A. x=65<br> B. x=12<br> C. x=-65<br> D. x=-12
julia-pushkina [17]

Answer:

x = -12 so it's D

Step-by-step explanation:

you divided -60 by 5 and get -12

8 0
3 years ago
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