All categories

3 years ago

ALFREDO LIKES SOCCER

Mathematics

1 answer:

Grace [21]3 years ago

6 0

Answer:

yoo was good alfredo can you mark me as brainlist PLZ

Step-by-step explanation:

that be big favor

You might be interested in

problem solving ''dragon task'' if you just take the points i will report you thnx to the people who help:)

FromTheMoon [43]

Answer:

<u>Answer: 22 </u>

Here's all the numbers that have 2 or more;

12, 16, 24, 32, 36, 40, 48, 56, 60, 72, 84, 88, 96, 6, 18, 30, 42, 54, 66, 78, 90, 8

Step-by-step explanation:

It seems that 3 and 4 collide ever two steps. (So everytime that happens it has two traits.)

Every time 6 is multiplied it is with 3, so that's a easy one

And 8 is also easy because 4 goes into it too, so 6 and 8 are always have 2 traits.

Forgive me if I missed one, I checked a few times so it should be good!

3 0

3 years ago

Use the quadratic formula to solve x2 – 5x + 3 = 0.

Anit [1.1K]

Answer:

x is 4.30 and 0.697

Step-by-step explanation:

Quadratic formular:

$x = \frac{ - b± \sqrt{ {b}^{2} - 4ac } }{2a} \\$

a » 1

b » -5

c » 3

$x = \frac{ - ( - 5)± \sqrt{ {( - 5)}^{2} - (4 \times 1 \times 3)} }{(2 \times 1)} \\ \\ x = \frac{5± \sqrt{13} }{2}$

Therefore, values of x :

$x = \frac{5 + \sqrt{13} }{2} \: \: and \: \: \frac{5 - \sqrt{13} }{2} \\ \\ x = 4.30 \: \: and \: \: 0.697$

7 0

3 years ago

Use the unit circle to evaluate these expressions:

sergeinik [125]

Answer:

a) We can remove the complete rotations around the unitary circle like this, because we know that one complete revolution is equivalent to $2\pi$ :

$17 \pi/4 - 2\pi = \frac{9\pi}{4} -2\pi = \pi/4$

For this case we know that $sin (\pi/4) = \frac{\sqrt{2}}{2}$

So then $sin(\frac{17 \pi}{4}) = \frac{\sqrt{2}}{2}$

b) We can remove the complete rotations around the unitary circle like this, because we know that one complete revolution is equivalent to $2\pi$ :

$19 \pi/6 - 2\pi = \frac{7\pi}{6}$

For this case we know that $cos (\pi/6) = \frac{\sqrt{3}}{2}$

And we know that $\frac{7\pi}{6}$ is on the III quadrant since is equivalent to 210 degrees. And on the III quadrant the cosine is negative. So then $cos(\frac{19 \pi}{6}) = -\frac{\sqrt{3}}{2}$

c) For this case that any factor of $\pi$ the sin function is equal to 0.

So from definition of tan we have this:

$tan (450\pi) = \frac{sin(450 \pi)}{cos(450 \pi)}= \frac{0}{cos(450\pi)}= 0$

Step-by-step explanation:

a. sin (17pi / 4 )

We can remove the complete rotations around the unitary circle like this, because we know that one complete revolution is equivalent to $2\pi$ :

$17 \pi/4 - 2\pi = \frac{9\pi}{4} -2\pi = \pi/4$

For this case we know that $sin (\pi/4) = \frac{\sqrt{2}}{2}$

So then $sin(\frac{17 \pi}{4}) = \frac{\sqrt{2}}{2}$

b. cos (19pi / 6 )

We can remove the complete rotations around the unitary circle like this, because we know that one complete revolution is equivalent to $2\pi$ :

$19 \pi/6 - 2\pi = \frac{7\pi}{6}$

For this case we know that $cos (\pi/6) = \frac{\sqrt{3}}{2}$

And we know that $\frac{7\pi}{6}$ is on the III quadrant since is equivalent to 210 degrees. And on the III quadrant the cosine is negative. So then $cos(\frac{19 \pi}{6}) = -\frac{\sqrt{3}}{2}$

c. tan(450pi)

For this case that any factor of $\pi$ the sin function is equal to 0.

So from definition of tan we have this:

$tan (450\pi) = \frac{sin(450 \pi)}{cos(450 \pi)}= \frac{0}{cos(450\pi)}= 0$

4 0

3 years ago

Each big square below represents one whole.<br> What percent is represented by the shaded area?

Alexandra [31]

Answer:

173%

Step-by-step explanation:

I think?

3 0

3 years ago

Maria works as an electrician and earns $24.68/h. If she worked for 15 hours on one job, how much did she earn? *

rodikova [14]

Answer:

she would have $370.20

Step-by-step explanation:

24.68*15=370.2

8 0

3 years ago