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3 years ago

What is the value of b for b2 = 36/64

Mathematics

1 answer:

Nataly_w [17]3 years ago

6 0

Answer is C: 6/8

solve with square roots

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Solve 1 + cos theta = 2 cos^2 theta

valentina_108 [34]

$~~~~1+ \cos \theta = 2 \cos^2 \theta \\\\\implies 2\cos^2 \theta -\cos \theta -1 = 0\\\\\implies 2 \cos^2 \theta -2\cos \theta + \cos \theta -1 = 0\\\\\implies 2 \cos \theta( \cos \theta -1) +(\cos \theta -1)=0\\\\\implies (\cos \theta -1)(2 \cos \theta +1)=0\\\\\implies \cos \theta = 1, ~~\cos \theta = -\dfrac 12\\\\\implies \theta = 2n\pi,~~~ \theta = 2n\pi \pm \dfrac{2\pi}3$

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2 years ago

-4(8r+3) pls answer

luda_lava [24]

<h3>given:</h3>

$- 4(8r + 3)$

<h3>solution:</h3>

$- 4(8r + 3)$

$= - 32r - 12$

7 0

2 years ago

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What is the measure of U

iris [78.8K]

Answer:

U = 48

Step-by-step explanation:

The sum of the angles of a triangle add to 180 degrees

x+21 + x+23 + x+61 = 180

Combine like terms

3x + 105 = 180

Subtract 105 from each side

3x+105-105 = 180-105

3x = 75

Divide by 3

3x/3 = 75/3

x = 25

We want angle u

x+23

25+23

6 0

3 years ago

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Please answer! this is an important exam that im taking right now.

Scorpion4ik [409]

Answer:

Required ordered pair is (0,0) for system of equation

Step-by-step explanation:

The given system of equation is

A). $9^{12x} = 9^{3y}$

B). $y^{4} - 9y^{2} x^{2} =16y$

On simplifying the equation A

$9^{12x} = 9^{3y}$

Take log on both side,

(12x) (log9) = (3y) (log9)

4x=y

To find the solution of the system of the equation :

Replacing value of y=4x in equation B,

$y^{4} - 9y^{2} x^{2} =16y$

$(4x)^{4} - 9(4x)^{2} x^{2} =16(4x)$

$256x^{4} - 144x^{2} x^{2} =64x$

$256x^{4} - 144x^{4}=64x$

$112x^{4}=64x$

We get,

x=0 and x=0.829

Since, 0.829 is not integer number

Only solution of equations is x=0

For the value of y

Replace value x in y=4x=0

Thus, Required ordered pair is (0,0)

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4 years ago

What are the odds of picking a "g" in the word Georgia?

Veseljchak [2.6K]

The probability of any particular event occurring is the number of desired outcomes divided by the total number of outcomes. In this case, the total number of letters you can pick is 7 (g, e, o, r, g, i, a), and the number of times "g" occurs is 2, so the odds of picking a "g" are 2/7.

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3 years ago

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