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Alexxx [7]
3 years ago
7

Please help and explain why so i understand it please

Mathematics
1 answer:
Daniel [21]3 years ago
3 0
That question probably meant how far are the two distances.

One way to solve this problem is by using the distance formula which you can search up.

and so the answer is d=13. D is distance
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Given right triangle QRS, what is the value of sin(30°)?
m_a_m_a [10]

The value of sin(30°) is 1/2.

<h3>What is Trigonometry?</h3>

The branch of mathematics concerned with specific functions of angles and their application to calculations.

The diagram is attached below:

We know,

sin 30= Perpendicular/ Hypotenuse.

As, the hypotenuse is the opposite side of the right angle and the perpendicular is opposite to the given angle.

So,

sin 30 = 5/10

sin 30 = 1/2

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2 years ago
Evaluate:<br> -9 + 25 - (-10) + (-6)
Minchanka [31]
-9 is a negative number, so plus 25, it would be 16. The minus sign and the negative sign of -10 cancel out, so it is plus 10, ending up with 26. Finally, the + and - becomes negative (positive times negative equals negative), so it is -6 and you’ll end up with a final answer of 20.
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3 years ago
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Carlos has 24 class play tickets. He sold 3/4 of the tickets.How many tickets did Carlos sell?
OverLord2011 [107]
He sold 18 tickets class play tickets.  Hope this helps :) 



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4 years ago
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Change from rectangular to spherical coordinates. (let ≥ 0, 0 ≤ ≤ 2, and 0 ≤ ≤. ) (a) (5, 5 3 , 10 3 )
Nikolay [14]

The spherical coordinate that is converted from the given rectangular coordinate is (12.62, 46.67°, 35.3°).

Here, the given rectangular coordinate is (5, 5.3, 10.3).

Therefore, the value of 'x' is 5, the value of 'y' is 5.3 and the value of 'z' is 10.3.

We can convert the rectangular coordinate (x, y, z) into spherical coordinate (ρ, θ, Φ) by the below mentioned method.

We know, ρ² = (x²+y²+z²)

Therefore, ρ

= √(x²+y²+z²)

= √[(5)²+(5.3)²+(10.3)²]

= √(25+28.09+106.09)

= √(159.18)

= 12.62

Again, tan θ = (y/x)

Therefore, θ = tan⁻¹(y/x) = tan⁻¹(5.3/5) = tan⁻¹(1.06) = 46.67°

Similarly, cos Φ = (z/ρ)

Therefore, Φ = cos⁻¹(z/ρ) = cos⁻¹(10.3/12.62) = cos⁻¹(0.816) = 35.3°

Here, the spherical coordinate is (ρ, θ, Φ).

Therefore, the required spherical coordinate for the given rectangular coordinate is (12.62, 46.67°, 35.3°).

Learn more about the conversion of a rectangular coordinate to a spherical coordinate here: brainly.com/question/17185505

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8 0
2 years ago
Mark’s meal costs $21.11. He wants to leave a tip of 20.00%. What is the total charge for Mark’s meal? How much was the tip?
storchak [24]

Answer:

$4.23 for the tip;

$25.34 for the meal cost.

Step-by-step solution:

Please see attached image.

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2 years ago
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