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2 years ago

How do you figure out 3h = 120

Mathematics

2 answers:

Andrews [41]2 years ago

6 0

By doing cross multiply and dividing 3 on both sides of the equ

cestrela7 [59]2 years ago

5 0

Answer:

$h=40$

Step-by-step explanation:

$3h = 120$

Divide 3 on both sides of the equation.

$\frac{3h}{3}=\frac{120}{3}$

$h=40$

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Trigonometric identities assignment 4

kykrilka [37]

Answer:

<em>Answer: choice D.</em>

Step-by-step explanation:

<u>Trigonometric Functions</u>

We need to recall some properties and definitions of the trigonometric functions.

$\displaystyle \tan \theta=\frac{\sin\theta}{\cos\theta}$

$\displaystyle \sec \theta=\frac{1}{\cos\theta}$

We need to simplify the following expression:

$5\sin\theta\sec\theta$

Substituting the identity for the secant:

$\displaystyle 5\sin\theta\sec\theta=5\sin\theta.\frac{1}{\cos\theta}$

Operating:

$\displaystyle 5\sin\theta\sec\theta=5\frac{\sin\theta}{\cos\theta}$

Substituting the definition of the tangent:

$\displaystyle 5\sin\theta\sec\theta=5\tan\theta$

Correct choice D.

6 0

2 years ago

Can you plz help me with this, because I don’t know how to do this and can u plz explain how to do it

Alecsey [184]

Answer:

Step-by-step explanation:

You can start this in may ways but let's start by isolating one of the parenthesis:

x (x² - 5) = - (x - 3)

x³ - 5x = -x + 3 (here I multiplied x for what's inside the parenthesis and the "minus" signal by the other parenthesis which was (x - 3))

x³ - 5x + x = 3

x³ -4x = 3

x³ -4x -3 = 0 (now this right here is a "depressed cubic equation" and it's one of the toughest sit of all time, so good luck with that, you might wanna take a look at this:

ytb/watch?v=rNDy2ZFvG1E

or maybe I'm doing something wrong and it's simpler than that, but whaterver...)

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2 years ago

Numbers like 10,100,1000, and so on are called blank

Evgen [1.6K]

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Is that what you are asking?

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3 years ago

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2 years ago

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raketka [301]

Answer:

fully simplified answer: x^2-2x+8

Step-by-step explanation:

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2 years ago