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4 years ago

(3x^2-15d) - (-10x^2-4d)

Mathematics

2 answers:

ElenaW [278]4 years ago

6 0

<span>(3x^2-15d) - (-10x^2-4d) = 13x^2-11d

Hope this helps!!
</span>

kirill [66]4 years ago

4 0

Yehhhh man whattt hee said im just trynnna get more points

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What is the median of the data set?<br><br> 10, 15, 27, 33, 33, 36, 42, 47, 45, 56, 78

pshichka [43]

Answer:

We can see that the number in the middle is 36. Hence the median of the data set is 36 the median of a data set is the number placed at the middle of a data after rearrangement either in ascending order or descending order.

Given the dataset 10, 15, 27, 33, 33, 36, 42, 47, 45, 56, 78

Step-by-step explanation:

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2 years ago

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a construction worker has a ladder against the side of a building. the building is 10 feet tall, and the ladder is 15 feet long.

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Step-by-step explanation:

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2 years ago

Find area of the shaded region.

Monica [59]

Answer:

The area of the shaded region is about 38.1 square centimeters.

Step-by-step explanation:

We want to find the area of the shaded region.

To do so, we can first find the area of the sector and then subtract the area of the triangle from the sector.

The given circle has a radius of 6 cm.

And the given sector has a central angle of 150°.

The area for a sector is given by the formula:

$\displaystyle A=\pi r^2\cdot \frac{\theta}{360^\circ}$

In this case, r = 6 and θ = 150°. Hence, the area of the sector is:

$\displaystyle \begin{aligned}A&=\pi(6)^2\cdot \frac{150}{360}\\ &=36\pi\cdot \frac{5}{12}\\&=3\pi \cdot 5\\&=15\pi \text{ cm}^2\end{aligned}$

Now, we can find the area of the triangle. We can use an alternative formula:

$\displaystyle A=\frac{1}{2}ab\sin(C)$

Where a and b are the side lengths, and C is the angle between them.

Both side lengths of the triangle are the radii of the circle. So, both side lengths are 6.

And the angle C is 150°. Hence, the area of the triangle is:

$\displaystyle A=\frac{1}{2}(6)(6)\sin(150)=18\sin(150)$

The area of the shaded region is equivalent to the sector minus the triangle:

$A_{\text{shaded}}=A_{\text{sector}}-A_{\text{triangle}}$

Therefore:

$A_{\text{shaded}}=15\pi -18\sin(150)$

Use a calculator:

$A_{\text{shaded}}=38.1238...\approx 38.1\text{ cm}^2$

The area of the shaded region is about 38.1 square centimeters.

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3 years ago

You bought a new car in 2015 for $32,000 that is depreciating in value by 15% each year. Write a function to represent this situ

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Function: x = years

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3 years ago

Question 3 of 5

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Answer:

triangle A

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3 years ago