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n200080 [17]
3 years ago
12

Identify the area famous for its 29 active volcanoes

Mathematics
1 answer:
satela [25.4K]3 years ago
8 0
Kamchatka Peninsula was known for having 29 active volcanoes and it lies at the eastern edge of the russian far east. Kamchatka Peninsula lies between the Sea of Okhotsk to the west and Pacific Ocean to the east and it was a1,250-kilometer-long penisula in the Russian Far East. So, the answer in this question is Kamchatka Peninsula.
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Y=x^2 -9x at x = 4 Find an equation of the tangent an an equation of the normal
Montano1993 [528]

The tangent line to <em>y</em> = <em>f(x)</em> at a point (<em>a</em>, <em>f(a)</em> ) has slope d<em>y</em>/d<em>x</em> at <em>x</em> = <em>a</em>. So first compute the derivative:

<em>y</em> = <em>x</em>² - 9<em>x</em>   →   d<em>y</em>/d<em>x</em> = 2<em>x</em> - 9

When <em>x</em> = 4, the function takes on a value of

<em>y</em> = 4² - 9•4 = -20

and the derivative is

d<em>y</em>/d<em>x</em> (4) = 2•4 - 9 = -1

Then use the point-slope formula to get the equation of the tangent line:

<em>y</em> - (-20) = -1 (<em>x</em> - 4)

<em>y</em> + 20 = -<em>x</em> + 4

<em>y</em> = -<em>x</em> - 24

The normal line is perpendicular to the tangent, so its slope is -1/(-1) = 1. It passes through the same point, so its equation is

<em>y</em> - (-20) = 1 (<em>x</em> - 4)

<em>y</em> + 20 = <em>x</em> - 4

<em>y</em> = <em>x</em> - 24

3 0
3 years ago
Allyson walked 10.8 km to the school. If 1 mile = 1.6 km, about how many miles did she walk?
seropon [69]

Answer:

According to my calculations, 1.6 goes into 10.8 a total of 6 times with a remainder of 1.1999999999999993. If you continue the long division beyond the decimal point, the result would be 6.75.

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The sets L and B are given below.
trapecia [35]

L= (-2, 2, 8) \\ B= (-2, 1, 2, 4, 8) \\ L \: n \: B \:  =  \: ( - 2, 2, 8) \\ L \: u \: B = ( - 2, 2, 1, 4, 8)

7 0
3 years ago
Can someone help me with part c I really don’t get it
ikadub [295]
Here is the answer , and the explanation is written with it .

6 0
3 years ago
Pls help picture provided
Zanzabum

Answer: second option

Step-by-step explanation:

The standard form of a quadratic equation is:

ax^2+bx+c=0

Then, to write the quadratic equation given in the problem in standard form, you must substract 1 from both sides of the equation. Then you have:

2x^2+5x-1=0

Given the quadratic equation above, to find the value of b^2-4ac  you must substitute:

a=2; b=5 and c=-1 into b^2-4ac

Thenrefore, you obtain the following result:

5^2-4(2)(-1)=33

8 0
3 years ago
Read 2 more answers
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