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omeli [17]
3 years ago
11

Cos(−θ)=√3/4 , sinθ<0 What is the value of sinθ ?

Mathematics
2 answers:
tamaranim1 [39]3 years ago
8 0
Since the length OQ = cos θ is the x-coordinate of P, and PQ = sin θ<span> i</span>
Olegator [25]3 years ago
7 0
Hello : 
<span>Cos(−θ)=√3/4

</span><span>Cos(θ)=√(3)/2
</span><span>sinθ = -1/2</span>
θ = π + π/6 = 7<span>π/6

</span>θ = 2π - π/6 = 11π/6
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This is a system of equations problem.

Blueberry = X, blackberry = Y

Joe:
5x + 10y = 135

James:
x + 9y = 104

Let’s isolate x from James’ equation.
x = 104 - 9y

Now substitute that into the first equation.
5(104 - 9y) + 10y = 135

520 - 45y + 10y = 135

-35y = -385

y = -385/-35. The negatives cancel out, leaving us with $11 for blackberries.

Now we can substitute that value into James’s equation.

x + 9(11) = 104

x = 104 - 99

x = $5

Final answer: Blueberry pies cost $5, blackberry pies cost $11.
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2 years ago
What is an apparent solution
NNADVOKAT [17]

Answer:

an apparent solution that must be rejected because it does not satisfy the original equation.

Step-by-step explanation:

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Cone A has a radius of 2 inches and a height of 3 inches. In cone B, the height is the same, but the radius is doubled. Calculat
wlad13 [49]

Answer: Option C.

Step-by-step explanation:

Use the formula for calculate the volume of a cone:

V=\frac{1}{3}\pi r^2h

Where r is the radius and h is the height.

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V_A=\frac{1}{3}\pi (2in)^2(3in)=12.56in^3

Volume of the cone B:

If the height of the cone B and the height of the cone A are the same , but the radius of the cone B is doubled, then its radius is:

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Divide V_B by V_A:

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Answer:

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Step-by-step explanation:

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PLEASE HELP<br><br> x = ___ units
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Answer:

x = <u>16</u> units

Step-by-step explanation:

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If side opposite of 90° [∆] = x, side opposite of 45° [∆] = x / √2 = x √ 2 / 2.

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Since side BC is part of BCD.

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