X = ln square root of e

Last question for now in math: *please help*

spin [16.1K]

The height of Mount Kilimanjaro is 19,340 feet.

To convert to scientific notation move the decimal point so there is only 1 digit to the left of the decimal pint, you then multiply that by 10 raised to the number of spaces you moved the decimal point.

19,340 - Move the decimal point 4 places to the left to get 1.9340

You can remove the 0 at the end to get 1.934

You moved the decimal 4 places so raise 10 to 4 and get the final answer:

1.934 x 10^4

The first choice is the correct one.

3 0

4 years ago

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Given the function f(x) = -5x²-x+ 20, find f(3). O-28 O-13 O62 O64

olganol [36]

Answer: $\Large\boxed{First~Choice.~-28}$

Step-by-step explanation:

Given function expression

f(x) = -5x² - x + 20

Requirement of the question

Find the value of f(3)

Substitute the values into the function

f(x) = -5x² - x + 20

f(3) = -5(3)² - (3) + 20

Simplify the exponents

f(3) = -5(9) - 3 + 20

Simplify by multiplication

f(3) = -45 - 3 + 20

Simplify by subtraction and addition

f(3) = -48 + 20

$\Large\boxed{f(3)=-28}$

Hope this helps!! :)

Please let me know if you have any questions

5 0

1 year ago

Simplify the expression.

pashok25 [27]

Answer:

b X + 2 X

6 b c - 18 c

Step-by-step explanation:

3 0

3 years ago

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HELP ME PLSSSSSS!!!!!!!

n200080 [17]

Answer:

1) $m\angle x = 35^{\circ}$ , 2) $m\angle x = 60^{\circ}$ , 3) $m \angle x = 40^{\circ}$

Step-by-step explanation:

1) Triangle is a right triangle since tangent line is perpendicular to the radius of the circle. Based on the fact that the sum of internal angles in triangles equals 180°, we find the value of the angle $x$ :

$m\angle x = 180^{\circ} - 90^{\circ} - 55^{\circ}$

$m\angle x = 35^{\circ}$

2) Both triangles are symmetrical right triangles since tangent lines are perpendicular to the two radii and common side is parallel to the third radius. Based on the fact that the sum of internal angles in triangles equals 180°, we find the value of the angle $x$ :

$m \angle x = 180^{\circ} - 90^{\circ} - 30^{\circ}$

$m\angle x = 60^{\circ}$

3) The figure is formed by two symmetrical right triangles. These triangles are right-angled and symmetrical since tangent lines are perpendicular to the two radii and common side is parallel to the third radius. Based on the fact that the sum of internal angles in quadrilaterals equals 360°, we find the value of the angle $x$ :

$m\angle x = 360^{\circ} - 180^{\circ} - 140^{\circ}$

$m \angle x = 40^{\circ}$

4 0

3 years ago

4.

Tom [10]

Answer:

A. $2.20; $2.54

Step-by-step explanation:

4 0

3 years ago

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