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3 years ago

Please help. i dont know how to do it cuz im dumb

Mathematics

2 answers:

lukranit [14]3 years ago

8 0

Answer:

The image is reflecting in the x axis

Step-by-step explanation:

hope that's what you were looking for. if not, the middle of both of the images is (0, .5)

Rom4ik [11]3 years ago

6 0

Reflection reflection reflection reflection

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A raindrops has a mass of 0.50g. how many moles of water does a raindrop contain

alina1380 [7]

So, here you have to look at the periodic table and see what the molar mass of each molecule composing the water compound $H_2 O$
its two hydrogen atom plus an oxygen molecule, making it about 18g per mol.

That said, looking at the mass, we have to ask ourselves, if a mol of water contains 18g of mass, how many moles do we have in 0.5g of water?
We just do a cross multiplication:
$\frac{(0.5)}{18} =0.027 mol$

7 0

4 years ago

Please see attachment

Dafna11 [192]

Answer:

a) The value of absolute minimum value = - 0.3536

b) which is attained at $x = \frac{1}{\sqrt{2} }$

Step-by-step explanation:

Step(i):-

Given function

$f(x) = \frac{-x}{2x^{2} +1}$ ...(i)

Differentiating equation (i) with respective to 'x'

$f^{l} = \frac{2x^{2} +1(-1) - (-x) (4x)}{(2x^{2}+1)^{2} }$ ...(ii)

$f^{l}(x) = \frac{2x^{2}-1}{(2x^{2}+1)^{2} }$

Equating Zero

$f^{l}(x) = \frac{2x^{2}-1}{(2x^{2}+1)^{2} } = 0$

$\frac{2x^{2}-1}{(2x^{2}+1)^{2} } = 0$

$2 x^{2}-1 = 0$

$2 x^{2} = 1$

$x^{2} = \frac{1}{2}$

$x = \frac{-1}{\sqrt{2} } , x = \frac{1}{\sqrt{2} }$

Step(ii):-

Again Differentiating equation (ii) with respective to 'x'

$f^{ll}(x) = \frac{(2x^{2} +1)^{2} (4x) - 2(2x^{2} +1) (4x)(2x^{2}-1) }{(2x^{2}+1)^{4} }$

put

$x = \frac{1}{\sqrt{2} }$

$f^{ll} (x) > 0$

The absolute minimum value at $x = \frac{1}{\sqrt{2} }$

Step(iii):-

The value of absolute minimum value

$f(x) = \frac{-x}{2x^{2} +1}$

$f(\frac{1}{\sqrt{2} } ) = \frac{-\frac{1}{\sqrt{2} } }{2(\frac{1}{\sqrt{2} } )^{2} +1}$

on calculation we get

The value of absolute minimum value = - 0.3536

Final answer:-

a) The value of absolute minimum value = - 0.3536

b) which is attained at $x = \frac{1}{\sqrt{2} }$

3 0

3 years ago

I had 6 cupcakes two days ago, and 9 yesterday. help me continue this pattern. thank you.

lutik1710 [3]

You had 12 the next day and the day after that you had 18

6 0

3 years ago

Read 2 more answers

PLEASE HELP ILL GIVE BRAINLIEST Sara is making a cake in a trapezoid

alukav5142 [94]

Answer:

D im not sure just my opinion

5 0

2 years ago

Which is a subset of [1,2,4,5,6]? A. [0,1,2] B. [3,4] C. [5,6,7] D. [2,6]

aalyn [17]

Answer: D, [2,6])

Step-by-step explanation

Let us start by explaining what a subset means. A subset of a set is a a set(usually a smaller set) that contains contains elements which are all members or elements of the main set. This means that all the elements in the subset are contained in the main set. Usually, all the elements of the subset are contained in the main set but all the elements in the main set are not contained in the subset

The given set of numbers is

[1,2,4,5,6]

From the options given, all the elements in the subset, [2,6] are contained in the main set, [1,2,4,5,6].

So option D is the subset.

The subsets in the other options has elements that are not in the main set.

8 0

3 years ago