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3 years ago

Please help?:):):):)

Mathematics

1 answer:

Citrus2011 [14]3 years ago

4 0

Answer:

6.48%

Step-by-step explanation:

t - c = b

t = 31.93

c = 29.99

b = 31.93 - 29.99

b = 6.48%

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Simplify. -2 (3x - 5)<br><br> PLEASE ANSWER ASAP! TYSM IF U DO!

vazorg [7]

-2(3x - 5)

Distributive property.

-6x + 10

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2 years ago

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nadya68 [22]

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2 years ago

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telo118 [61]

Answer:

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Step-by-step explanation:

4 cups=1 quart

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2 years ago

If sin(x) = 5/13, and x is in quadrant 1, then tan(x/2) equals what?

Rufina [12.5K]

$x$ is in quadrant I, so $0$ , which means $0$ , so $\dfrac x2$ belongs to the same quadrant.

Now,

$\tan^2\dfrac x2=\dfrac{\sin^2\frac x2}{\cos^2\frac x2}=\dfrac{\frac{1-\cos x}2}{\frac{1+\cos x}2}=\dfrac{1-\cos x}{1+\cos x}$

Since $\sin x=\dfrac5{13}$ , it follows that

$\cos^2x=1-\sin^2x\implies \cos x=\pm\sqrt{1-\left(\dfrac5{13}\right)^2}=\pm\dfrac{12}{13}$

Since $x$ belongs to the first quadrant, you take the positive root ( $\cos x>0$ for $x$ in quadrant I). Then

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$\tan x$ is also positive for $x$ in quadrant I, so you take the positive root again. You're left with

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3 years ago

If 18 meters of high-resistance wire with a diameter of 1.2 mm has a resistance of 10 ohms, what is the resistance of 27 m of th

Tatiana [17]

9.6 Have a great day :)<span />

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2 years ago

Please help?:):):):)​

Please help?:):):):)