All categories

3 years ago

I don't know the answer to this question 5286-k=4319k=?

Mathematics

1 answer:

fiasKO [112]3 years ago

8 0

Answer:

k = -4033

Step-by-step explanation:

Solve for k:

286 - k = 4319

Subtract 286 from both sides:

(286 - 286) - k = 4319 - 286

286 - 286 = 0:

-k = 4319 - 286

4319 - 286 = 4033:

-k = 4033

Multiply both sides of -k = 4033 by -1:

(-k)/(-1) = -4033

(-1)/(-1) = 1:

Answer: k = -4033

You might be interested in

Kena calculates that she spends 15% of a school day in science class. If she spends 75 minutes in science class, how many minute

ankoles [38]

Answer:

Step-by-step explanation:

5 0

3 years ago

Let a= x2 +4 rewrite the following equation in terms of a and set it equal to zero. (X2 + 4)2 + 32 = 12x2 + 48 in the resulting

Alex73 [517]

$Answer: \\ {( {x}^{2} + 4) }^{2} + 32 = 12 {x}^{2} + 48 \\ \Leftrightarrow {a}^{2} + 32 = 12( {x}^{2} + 4) \\ \Leftrightarrow {a}^{2} + 32 = 12a \\ \Leftrightarrow {a}^{2} - 12a + 32 = 0 \\ \Rightarrow Coefficients:1, \: -12. \: Constant:a$

5 0

3 years ago

How to prove this???

swat32

$\cos^3 2A + 3 \cos 2A \\
\Rightarrow \cos 2A (\cos^2 2A + 3) \\
\Rightarrow (\cos^2 A - \sin^2 A) (\cos^2 2A + 3) \\
\Rightarrow (\cos^2 A - \sin^2 A) (1 - \sin^2 2A + 3) \\
\Rightarrow (\cos^2 A - \sin^2 A) (4 - \sin^2 2A) \\
\Rightarrow (\cos^2 A - \sin^2 A) (4 - (2\sin A \cos A)(2\sin A \cos A)) \\
\Rightarrow (\cos^2 A - \sin^2 A) (4 - 4\sin^2 A \cos^2 A) \\ 
\Rightarrow 4(\cos^2 A - \sin^2 A) (1 - \sin^2 A \cos^2 A) 
$

go to right side now

$4( \cos^6 A - \sin^6 A)\\
\Rightarrow 4( \cos^3 A - \sin^3 A)(\cos^3 A + \sin^3 A)$

use $x^3 - y^3 = (x-y)(x^2 + xy + y^2)$ and $x^3 + y^3 = x^2 - xy + y^2$

$4( \cos^6 A - \sin^6 A)\\ \Rightarrow 4( \cos^3 A - \sin^3 A)(\cos^3 A + \sin^3 A) \\
\Rightarrow 4(\cos A - \sin A)(\cos^2 A + \cos A \sin A + \sin^2 A) \\
~\quad \quad\cdot ( \cos A + \sin A)(\cos^2 A - \cos A \sin A + \cos^2 A)$

so $\sin^2 A + \cos^2 A = 1$

$4( \cos^6 A - \sin^6 A)\\ \Rightarrow 4(\cos A - \sin A)(\cos^2 A + \cos A \sin A + \sin^2 A) \\ ~\quad \quad\cdot ( \cos A + \sin A)(\cos^2 A - \cos A \sin A + \cos^2 A) \\ \Rightarrow 4(\cos^2 A - \sin^2 A)(1 + \cos A \sin A )(1- \cos A \sin A ) \\ \Rightarrow 4(\cos^2 A - \sin^2 A)(1 - \cos^2 A \sin^2 A )\\ \Rightarrow 4(\cos^2 A - \sin^2 A)(1 - \sin^2 A \cos^2 A ) \\
 \Rightarrow Left hand side$

4 0

3 years ago

Can someone please help me with this question

Paladinen [302]

Answer

180 - x

Step-by-step explanation:

opposite angles of a quadrilateral inscribed in a circle are supplementary

6 0

3 years ago

Read 2 more answers

What is the y-intercept for y+2= -3/4(x+4)

fiasKO [112]

The answer would be: -5

Heres how you solve it!

First, change the x into a 0 so it can be removed.

y+2= -3/4*4

Now with the GCF you can reduce the numbers with 4.

y+2= -3

Then move the 2 to the other side causing it to change its sign into a negative

y= -3-2

Since -3 and -2 are both negative it would be -5

y= -5

then you are left with your answer.

Hope this helps! :3

8 0

4 years ago

I don't know the answer to this question 5286-k=4319k=?​

I don't know the answer to this question 5286-k=4319k=?