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k0ka [10]
2 years ago
9

Examples: Which type of triangle is graphed? Classify by Side and Angle. Then find the perimeter of each

Mathematics
1 answer:
OverLord2011 [107]2 years ago
7 0
24372371847174819582
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Can you solve this? I need help. I don't understand.
ZanzabumX [31]

Answer:

2 sqrt(5) OR 4.5

Step-by-step explanation:

You have to know Pythagorean theorem to solve this question.

a^2 + b^2 = c^2

To use this theorem you have to have a right triangle. There are two right triangles in your image. The lower (larger) one has two sides labeled, so you can use Pythagorean thm to find the third side. There's a short cut, bc some right triangles have easy-to-memorize lengths of the sides. 3-4-5 is one of these number sets. A multiple of this is 6-8-10. We could've solved:

b^2 + 8^2 = 10^2

But it would've come out the same. The unlabeled side is 6.

We can use the 6 and the 4 on the smaller right triangle and use the Pythagorean thm again to solve for x.

4^2 + x^2 = 6^2

16 + x^2 = 36 subtract 16 from both sides.

x^2 = 20

Take the square root of both sides.

sqrt (x^2) = sqrt 20

x = 2 sqrt(5) which is approximately 4.472.

2 sqrt(5) is an exact answer if that is what they are asking for. 4.472 is an approximation to the nearest thousandth. It would be 4.47 to the nearest hundredth or 4.5 to the nearest tenth.

8 0
2 years ago
If f(x) = 3^x + 10x and g(x) = 2x - 4, find (f + g)(x)
kow [346]

Answer:

The Answer is D

Step-by-step explanation:

All you do is add both equations 3^x+10x+2x-4

then you add the like varibles which is 10x+2x=12x

So, the answer is 3^x+12x-4

6 0
3 years ago
Read 2 more answers
A triangle has side lengths of 10 cm, 24 cm, and 32 cm. Classify the triangle as acute, obtuse, right of not a triangle.
Stolb23 [73]
It would be obtuse.   
8 0
3 years ago
Read 2 more answers
How many answers are in each of these three questions: 1. x squared minus three x plus four equals zero 2. Two x squared plus fo
vaieri [72.5K]
1. No solutions ( no answers) 2 . 2 answers 3. 1 answer
6 0
3 years ago
A bookstore manager marks down the price of older hardcover books, which originally sell for b dollars, by 46 percent.
Evgen [1.6K]

Answer:

67865

Step-by-step explanation:

5 0
3 years ago
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