All categories

3 years ago

How’s your day today. How are you?

Mathematics

2 answers:

andrezito [222]3 years ago

7 0

My day is going great! I’m doing good. Thanks for asking!
How are you?
I hope you have a great day! :)

Dennis_Churaev [7]3 years ago

5 0

Answer:

My day was bad. Today was the worst day of my life. Mark me brainliest, if you want to make my day better!

Step-by-step explanation:

- Thanks for the points!

You might be interested in

-1/2(-3y+10) i need help combining like terms to create a equivelent expression

Vaselesa [24]

Answer:

1.5y - 5

Step-by-step explanation:

I used the distributive approach and distributed -1/2 to the -3y and 10.

(If you try this and it's incorrect, you may just need to distribute -1/2 to the 10, creating -3y - 5.)

6 0

3 years ago

Which equation has x = -i and x = = 21v3 as two of its solutions?

Drupady [299]

Answer:

The equation in option A is correct.

Step-by-step explanation:

Given the equation

$\:y=x^4+13x^2+12$

Let us find the solution by setting y=0

$x^4+13x^2+12=0\:\:\:\:\:$

$\mathrm{Rewrite\:the\:equation\:with\:}u=x^2\mathrm{\:and\:}u^2=x^4$

$u^2+13u+12=0$

if $ab=0\:\mathrm{then}\:a=0\:\mathrm{or}\:b=0\:\left(\mathrm{or\:both}\:a=0\:\mathrm{and}\:b=0\right)$

$u+1=0\quad \mathrm{or}\quad \:u+12=0$

$u=-1,\:u=-12$

$\mathrm{Substitute\:back}\:u=x^2,\:\mathrm{solve\:for}\:x$

$x^2=-1,\:x^2=-12$

solving

$x^2=-1$

$\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}$

$x=\sqrt{-1},\:x=-\sqrt{-1}$

$x=i,\:x=-i$ ∵ $\:\sqrt{-1}=i$

solving

$x^2=-12$

$\mathrm{For\:}x^2=f\left(a\right)\mathrm{\:the\:solutions\:are\:}x=\sqrt{f\left(a\right)},\:\:-\sqrt{f\left(a\right)}$

$x=\sqrt{-12},\:x=-\sqrt{-12}$

$x=2\sqrt{3}i,\:x=-2\sqrt{3}i$

Hence, the solutions are:

$x=i,\:x=-i,\:x=2\sqrt{3}i,\:x=-2\sqrt{3}i$

Therefore, the equation in option A is correct.

6 0

3 years ago

Which statement illustrates why cosine is an even function?

son4ous [18]

C. cos(-pie/4) = cos(pie/4)

Step-by-step explanation: edge

3 0

3 years ago

Read 2 more answers

Can you plz tell me how to do letter b

KATRIN_1 [288]

Answer:

r=d/2

Step-by-step explanation:

The radius is equal to half of the diameter. If we plug it in we get 4.88*10^3/2 or 2.44*10^3

6 0

3 years ago

4 markers cost $7.04. Which equation would help determine the cost of 7 markers?

Ivenika [448]

$7.04 divided by 4 will determine the cost of one marker.
which is $1.76

$1.76 (x)

$1.76 (7) = $12.32

8 0

3 years ago

Read 2 more answers