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3 years ago

How do I figure this out?

Mathematics

1 answer:

balu736 [363]3 years ago

6 0

it is 1 2 twelve I can end without 20 word my friend so deal with it

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. [15 points] Alex is at the northernmost point of a circular parking lot with radius 26 feet. Dylan stands 22.4 feet west and 2

valentina_108 [34]

Answer:

31.925 ft

Step-by-step explanation:

A diagram is needed to visualize Dylan's movement to Alex see below

thus (-22.4)² + y² = 26²

y² = 26² - (22.4)² = 174.24

y = -√174.2 = - 13.2 ft note due south

closest point at intersection

3/11* ( x- 26) = -11/3 x * + 26

3/11 x - 78/11 = -11/3x + 26

3/11 x +11/3x = 26 + 78/11

130/33 x = 364/11

x = 364/11 * 33/130 = 8.4

then y = 3/11 * (x -26)

x = 8.4 substitute, gives y = 3/11 * (8.4 -26) = -4.8

distance from (8.4 , -4.8) to (0 , 26)

√[(0 -8.4)² + ( 26-(-4.8))² ] = √[( -8.4)² + ( 30.8)² ] = 31.925 ft

5 0

3 years ago

What is the simplified form of -24m^5 n^4/ 8m^-7 n^-2

solong [7]

Answer:

-3·m^12·n^6

Step-by-step explanation:

We assume you intend ...

(-24·m^5·n^4)/(8·m^-7·n^-2)

= (-24/8)·m^(5-(-7))·n^(4-(-2))

= -3·m^12·n^6

_____

If you really intend what you have written, then it simplifies to ...

(-24·m^5·n^4/8)·m^-7·n^-2 . . . . . note that all factors involving m and n are in the numerator

= (-24/8)·m^(5-7)·n^(4-2) = -3n^2/m^2

8 0

2 years ago

True or false: Least squares regression problems always have a unique solution, since they are modelled by the normal equation

Vilka [71]

Answer: (((trueeee))))

4 0

2 years ago

A large washer has an outer radius of 10mm and a hole with a diameter of 14mm. What is the area of the top surface of the washer

choli [55]

<h2>Answer:</h2>

The area of the top surface of the washer is: 160.14 square mm.

<h2>Step-by-step explanation:</h2>

The top of the surface is in the shape of a annulus with a outer radius of 10 mm and a inner radius of 7 mm ( since the diameter of the hole is: 14 mm and we know that the radius is half of the diameter)

Now, we know that the area of the annulus region is given by:

$Area=\pi (R^2-r^2)$

where R is the outer radius and r is the inner radius.

Here we have:

$R=10\ mm\\\\and\\\\r=7\ mm$

Hence, we have:

$Area\ of\ top\ surface=\pi (10^2-7^2)\\\\i.e.\\\\Area\ of\ top\ surface=\pi (100-49)\\\\i.e.\\\\Area\ of\ top\ surface=\pi\cdot 51\\\\i.e.\\\\Area\ of\ top\ surface=160.14\ mm^2$

4 0

3 years ago

Read 2 more answers

A plumber charges $30 for a service call and an additional $25 per hour. Write an equation in slope-intercept form to represent

murzikaleks [220]

Answer:

The equation is c=25h+30 and the answer is 205

Step-by-step explanation:

Plug in 7 for h.

3 0

3 years ago