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2 years ago

Please help me understand how to solve this answer and many more similar

Mathematics

1 answer:

deff fn [24]2 years ago

4 0

Answer: sin should be 10.8/ 13.7

Step-by-step explanation:

refer to sohcahtoa
this is because sin is opposite (10.8) over hypotenuse (13.7)
S Sin
O opposite
H Hypotenuse

10.8 is opposite of the θ, 1.8 is not next to the θ, 8.4 is, so it is the opposite.
The hypotenuse is always the slanted line.

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victus00 [196]

Answer:

Step-by-step explanation:

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3 years ago

Which set of values for x makes the inequality 12−x<7 true

kozerog [31]

Answer:

$\{x:x>5\}$

Step-by-step explanation:

Given

$12 - x < 7$

Required

Values of x that make it true

First: solve the inequality.

$12 - x < 7$

Collect Like Terms

$- x < 7-12$

$- x < -5$

Multiply both sides by -1

$-1 * - x < -5 * -1$

$x > 5$ --- The inequality changes when multiplied by a negative value

So, the solution implies that the value of x is greater than 5 (i.e. 6, 7, 8..)

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$\{x:x>5\}$

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3 years ago

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ohaa [14]

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Step-by-step explanation:

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3 years ago

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Sholpan [36]

Answer:

1824in^2

Step-by-step explanation:

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5 0

3 years ago

Find approximate solution for the equation in the interval 0<_ x <_ pi. round to three decimal places. tanx=5 sin x

timofeeve [1]

Answer:

d. 0, 1.369

Step-by-step explanation:

Given:

The equation is: $\tan x =5\sin x................(0\leq x\leq \pi)$

Adding $-5\sin x$ on both sides, we get

$\tan x - 5\sin x=0$

Using the identity $\tan x=\frac{\sin x}{\cos x}$ , we get

$\frac{\sin x}{\cos x}-5\sin x=0$

Factoring out $\sin x$ , we get

$\sin x(\frac{1}{\cos x}-5)=0\\\\\therefore \sin x=0\ or\ \frac{1}{\cos x}-5=0\\\\x=\sin^{-1} (0)\ or\ \cos x=\frac{1}{5}\\\\x=0\ or\ x=\cos^{-1} (\frac{1}{5})\\\\x=0\ or\ x=1.3694\approx 1.369(\textrm{Round to 3 decimal places})$

Therefore, the solution of the given equation is either 0 or 1.369.

The correct choice is d.

4 0

3 years ago