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Fiesta28 [93]
3 years ago
7

HELP ME PLEASE I'm trying to figure out this equation or whatever this is.

Mathematics
1 answer:
Dovator [93]3 years ago
7 0

Answer:

2

Step-by-step explanation:

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Part A Prove that when x > 1, a triangle with side lengths a = x2 − 1, b = 2x, and c = x2 + 1 is a right triangle. Use the Py
Nataly [62]

Step-by-step explanation:

Given : A triangle with side lengths a = x^2-1, b = 2x, \text{ and } c = x^2 + 1

To find : Prove that when x > 1, it is a right triangle. Use the Pythagorean theorem and the given side lengths to create an equation. Use the equation to show that this triangle follows the rule describing right triangles. Explain your steps ?

Solution :

For right triangle the Pythagorean theorem is to be satisfied.

i.e. c^2=a^2+b^2

Here, a = x^2-1, b = 2x, \text{ and } c = x^2 + 1

Substitute the values,

(x^2+1)^2=(x^2-1)^2+(2x)^2

x^4+1+2x^2=x^4+1-2x^2+4x^2

x^4+1+2x^2=x^4+1+2x^2

LHS=RHS

It is a right triangle.

7 0
4 years ago
Last month, Seth made money by selling stocks. His investment income was $401
jolli1 [7]

Answer:

B, Seth lost $261 by selling stocks.

Step-by-step explanation:

Since the income is negative, it would only be logical that he would've lost money, since you can't make negative money.

8 0
3 years ago
What is the value of 5x+3 when x=4
mylen [45]

Answer:

23

Step-by-step explanation:

plug and chug: 5(4)+3=20+3=23

7 0
3 years ago
Read 2 more answers
Mrs. Bailey gives a test, and her students’ scores range from 30 to 70. She decides to curve the scores, so that they range from
Harman [31]

Answer:

f(x) = x*3/4 + 42.5

Step-by-step explanation:

The original difference between the pair is 70 - 30 = 40

The new difference between the pair is 95 - 65 = 30

Since the differences are not the same, Mrs Bailey must first perform a (slope) multiplication by a factor of 30/40 or 3/4

Then 30 * 3/4 = 22.5

Then she can shift the scores up by 65 - 22.5 = 42.5 in order to get the range from 65 to 95

Therefore, f(x) = x*3/4 + 42.5. We can test that

f(30) = 30*3/4 + 42.5 = 65

f(70) = 70*3/4 + 42.5 = 95

8 0
3 years ago
mr ogata drove 276 mies from his house to los angeles at an average speed of 62 miles per hour. how long did it take him to get
Ilia_Sergeevich [38]
About 5 hours. I did this by dividing and rounding 276 by 62. Hope this helps!
4 0
3 years ago
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