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4 years ago

Which value is NOT equivalent to the other values?1.5 3/20 15% 0.15

Mathematics

2 answers:

AVprozaik [17]4 years ago

8 0

Answer:

Step-by-step explanation:

1.5 does not equal 0.15 or the other values.

Daniel [21]4 years ago

5 0

Answer:

3/20

Step-by-step explanatpr

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Meg cycles 6.2 km every morning. How many feet are in 6.2 km, given that 1 mile= 1.609 km and 1 mile= 5280ft

Nikolay [14]

Answer:

There are 20345.556... feet in 6.2 km.

Step-by-step explanation:

Given that, 1 mile = 1.609 km and 1 mile = 5280 ft.

That means we can say, 1.609 km = 5280 ft.

So, 1 km = $(\frac{5280}{1.609})ft = 3281.541... ft$

Now, for converting 6.2 km into feet, we will just multiply 6.2 by 3281.541... ft.

Thus, 6.2 km = $(6.2 \times 3281.541...)ft = 20345.556... ft$

So, there are 20345.556... feet in 6.2 km.

5 0

3 years ago

First derivative of √{cosec2x).show with full step.

Mice21 [21]

Answer:

$- \sf \displaystyle \: \frac{ \cos(2x) }{ \sin ^{2} (2x)\sqrt{ \csc(2x) } }$

Step-by-step explanation:

we are given a derivative

$\displaystyle \: \frac{d}{dx} ( \sqrt{ \csc(2x) } )$

and said to figure out the first derivative

to do so

recall chain rule:

$\sf\displaystyle \: \frac{d}{dx} (f(g(x)) = \frac{d}{dg} (f(g(x)) \times \frac{d}{dx} (g)$

so we get

$\displaystyle \: g(x) = \csc(2x)$

rewrite the derivative using the chain rule:

$\displaystyle \: \frac{d}{dg} ( \sqrt{ g } ) \times \frac{d}{dx} ( \csc(2x) )$

use square root derivative rule to simplify:

$\displaystyle \: \frac{1}{ 2\sqrt{g} } \times \frac{d}{dx} ( \csc(2x) )$

now we need to again use chain rule composite function derivative to simplify

where we'll take a new function n so we won't mess up two g's and we'll take 2x as n

use composite function derivative to simplify:

$\sf \displaystyle \: \frac{1}{ 2\sqrt{g} } \times \frac{d}{dn}( \csc(n) ) \times \frac{d}{dx} (2x)$

use derivative formula to simplify derivatives:

$\sf \displaystyle \: \frac{1}{ 2\sqrt{g} } \times - \cot(n) \csc(n) \times 2$

substitute the value of n:

$\sf \displaystyle \: \frac{1}{ 2\sqrt{g} } \times - 2\cot(2x) \csc(2x)$

substitute the value of g:

$\sf \displaystyle \: \frac{1}{ 2\sqrt{ \csc(2x) } } \times - 2\cot(2x) \csc(2x)$

now we need our trigonometric skills to simplify

rewrite cot and csc:

$\sf \displaystyle \: \frac{1}{ 2\sqrt{ \csc(2x) } } \times - 2 \dfrac{ \cos(2x) }{ \sin(2x) } \dfrac{1}{ \sin(2x) }$

simplify multiplication:

$\sf \displaystyle \: \frac{1}{ \cancel{ \: 2}\sqrt{ \csc(2x) } } \times \cancel{- 2} \dfrac{ \cos(2x) }{ \sin ^{2} (2x) }$

simplify multiplication:

$- \sf \displaystyle \: \frac{ \cos(2x) }{ \sin ^{2} (2x)\sqrt{ \csc(2x) } }$

4 0

3 years ago

Read 2 more answers

a rectangular prism has a base that is 6 M by 3.5 m in the prism is 9 meters high what is the surface area of the prism

alexira [117]

Answer:

213 meters squared

Step-by-step explanation:

The surface area of a rectangular prism is found using the formula A=2(wl+hl+hw). Here substitute l = 6, w = 3.5 and h = 9.

A = 2((3.5*6) + (9*6) + (3.5*9))

A = 2(21 + 54 + 31.5)

A = 2(106.5)

A = 213

7 0

3 years ago

Evaluate the expression when y = 6 and x = 9 x+8y

Aleks04 [339]

Answer:

Step-by-step explanation:

9+8(6)

9+48

7 0

3 years ago

Read 2 more answers

Solve each equations check your answer. 0.6v+2.1=4.5 and v=

insens350 [35]

$0.6v+2.1=4.5\ \ |\ subtract\ 2.1\ to\ both\ sides\\ \\ 0.6v+2.1-2.1=4.5 -2.1\\\\0.6v=2.4 \ \ | \ divide \ both \ sides\ by\ 0.6\\\\v=\frac{2.4}{0.6}\\\\v=4$

4 0

3 years ago