3 years ago

The vertex form of the equation of a parabola is y = (x - 3)2 + 36.

Mathematics

1 answer:

IrinaVladis [17]3 years ago

6 0

- B. y = x2 - 6x + 45

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dlinn [17]

True:

3rd One

4th One

False: All of the others.

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3 years ago

Explain how 7 x 20 is similar to 7 x 2,000

zmey [24]

The answer will be similar as 7x20=140 and 7x2000=14000, the answers are the same but x100 as 140x100=14000
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3 years ago

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Solve the equation for y.<br> 10x -4y = -20

Vinvika [58]

Answer:

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Step-by-step explanation:

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3 years ago

If cos(θ)=2853 with θin Q IV, what is sin(θ)?

marysya [2.9K]

Answer: $\sin \theta=\frac{-45}{53}$

Step-by-step explanation:

Since we have given that

$\cos\theta=\frac{28}{53}$

And we know that θ is in the Fourth Quadrant.

So, Except cosθ and sec θ, all trigonometric ratios will be negative.

As we know the "Trigonometric Identity":

$\cos^2\theta+\sin^2\theta=1\\\\\sin \theta=\sqrt{1-\cos^2\theta}\\\\\sin \theta=\sqrt{1-(\frac{28}{53})^2}=\sqrt{\frac{53^2-28^2}{53^2}}\\\\\sin \theta=\sqrt{\frac{2025}{53^2}}\\\\\sin \theta=\frac{45}{53}$

It must be negative due to its presence in Fourth quadrant.

Hence, $\sin \theta=\frac{-45}{53}$

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3 years ago

Plz help!

Marizza181 [45]

Answer:

800 is the answer

Step-by-step explanation:

90-40= 50---->4000/50=800

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3 years ago