All categories

3 years ago

Is 2/8 greater or less than 1/4

Mathematics

2 answers:

Alex17521 [72]3 years ago

4 0

Its neither 2/8 is 1/4 simplified, therefore 2/8 is = 1/4

Hope this helped!

Lisa [10]3 years ago

4 0

They are equal to each other!

You might be interested in

The area of another rectangle is x² + 5x + 6. If one side measures (x + 2), what is the measure of the other

tiny-mole [99]

L=x+2
We need B

$\\ \sf\longmapsto LB=Area$

$\\ \sf\longmapsto B(x+2)=x^2+5x+6$

$\\ \sf\longmapsto B(x+2)=(x+2)(x+3)$

Cancel x+2

$\\ \sf\longmapsto B=x+3$

8 0

2 years ago

Evaluate the expression solve for k = -3.4 write answer as a decimal or whole number <br><br> 7k/10

Sauron [17]

-2.38 is the answer because 7x-3.4=x/10=-2.38

6 0

3 years ago

Find all solutions of the equation: 2cos^2x-cosx=1

Art [367]

If you're using the app, try seeing this answer through your browser: brainly.com/question/3166243

——————————

Solve the trigonometric equation:

$\mathsf{2\,cos^2\,x-cos\,x=1}\\\\ \mathsf{2\,cos^2\,x-cos\,x-1=0}$

Make a substitution:

$\mathsf{cos\,x=t\qquad (-1\le t\le 1)}$

and the equation becomes

$\mathsf{2t^2-t-1=0}$

Rewrite conveniently – t as + t – 2t, and then factor the left-hand side by grouping:

$\mathsf{2t^2+t-2t-1=0}\\\\ \mathsf{t\cdot (2t+1)-1\cdot (2t+1)=0}$

Factor out 2t + 1:

$\mathsf{(2t+1)\cdot (t-1)=0}\\\\ \begin{array}{rcl} \mathsf{2t+1=0}&~\textsf{ or }~&\mathsf{t-1=0}\\\\ \mathsf{2t=1}&~\textsf{ or }~&\mathsf{t=1}\\\\ \mathsf{t=\dfrac{\,1\,}{2}}&~\textsf{ or }~&\mathsf{t=1} \end{array}$

Substitute back for t = cos x:

$\begin{array}{rcl}\mathsf{cos\,x=\dfrac{\,1\,}{2}}&~\textsf{ or }~&\mathsf{cos\,x=1}\\\\ \mathsf{cos\,x=cos\,60^\circ}&~\textsf{ or }~&\mathsf{cos\,x=cos\,0} \end{array}$

Therefore,

$\begin{array}{rcl} \mathsf{x=\pm\,60^\circ+k\cdot 360^\circ}&~\textsf{ or }~&\mathsf{cos\,x=0+k\cdot 360^\circ} \end{array}$

where k is an integer.

Solution set:

$\mathsf{S=\left\{x\in\mathbb{R}:~~x=-\,60^\circ+k\cdot 360^\circ~~or~~x=60^\circ+k\cdot 360^\circ~~or~~x=k\cdot 360^\circ,~~k\in\mathbb{Z}\right\}}$

I hope this helps. =)

3 0

3 years ago

What is the answer to this???

jolli1 [7]

The answer for the question is 4

8 0

3 years ago

Can u guys make a story with this graph good luck this is velocity

enot [183]

Yeahh I could do it

8 0

2 years ago