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2 years ago

Write an equivalent expression by applying the distributive property (x-5)^2

Mathematics

1 answer:

tamaranim1 [39]2 years ago

4 0

Answer:

x^2 - 10x + 25

Step-by-step explanation:

Hope it helps.

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While eating ants, a giant anteater flicks its tongue 150 times per minute. At

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Answer:

In six minutes, the giant anteater would have flicked its tongue 900 times.

Step-by-step explanation:

Knowing the rate at which the anteater flicks its tongue per minute, you just have to multiply the rate by six.

150×6=900

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ron wants to buy a videoo game with a selling price of $48 on sale for 50% off. the sales tax in his state is 4.5% A)how much wi

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2 years ago

Calculating cos-1 ( help is gladly appreciated :) )

Alekssandra [29.7K]

Answer:

$\frac{3\pi}{4}$

(Assuming you want your answer in radians)

If you want the answer in degrees just multiply your answer in radians by $\frac{180^\circ}{\pi}$ giving you:

$\frac{3\pi}{4} \cdot \frac{180^\circ}{\pi}=\frac{3(180)}{4}=135^{\circ}$ .

We can do this since $\pi \text{ rad }=180^\circ$ (half the circumference of the unit circle is equivalent to 180 degree rotation).

Step-by-step explanation:

$\cos^{-1}(x)$ is going to output an angle measurement in $[0,\pi]$ .

So we are looking to solve the following equation in that interval:

$\cos(x)=-\frac{\sqrt{2}}{2}$ .

This happens in the second quadrant on the given interval.

The solution to the equation is $\frac{3\pi}{4}$ .

So we are saying that $\cos(\frac{3\pi}{4})=\frac{-\sqrt{2}}{2}$ implies $\cos^{-1}(\frac{-\sqrt{2}}{2})=\frac{3\pi}{4}$ since $\frac{3\pi}{4} \in [0,\pi]$ .

Answer is $\frac{3\pi}{4}$ .

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2 years ago

A 1,600.00 principal earns 7% interest compounded semiannually twice per year' after 33 years what is the balance in the account

Dmitrij [34]

A=1600(1+0.07/2)^(2*33)=15,494.7

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2 years ago