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2 years ago

I have no idea what this is since I was absent and my teacher is didn’t it explain it to me, someone?

Mathematics

1 answer:

MatroZZZ [7]2 years ago

4 0

Answer:

Step-by-step explanation:

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Question 5 and 6 I need answers to

Nimfa-mama [501]

Answer:

and also mark me the brainliest for the answer

Step-by-step explanation:

4 0

1 year ago

A jar is filled up with buttons of various colors. Of the jar has a total of 875 buttons and 52% of buttons are green, how many

laiz [17]

Since 52% is the same as 52/100, we can multiply 875 by 52/100 in order to find the green buttons.
52/100(875) = 455
455 green marbles

3 0

3 years ago

So i need to pick classes for my freshman year next year and i d k if i should take pre algebra or just do algebra. My math grad

ahrayia [7]

Answer:

Step-by-step explanation:

My recommendation is try to find a finals for both pre-algebra or algebra after learning some of the material ahead of time and after taking them, find which one is more comfortable for you

Good luck!

8 0

2 years ago

Solve the equation for exact solutions over the interval [0, 2π).

quester [9]

Answer:

$\displaystyle x=\left\{0, \frac{2\pi}{3}, \frac{4\pi}{3}\right\}$

Step-by-step explanation:

We want to solve the equation:

$-2\cos^2(x)=-\cos(x)-1$

Over the interval [0, 2π).

First, notice that this is in quadratic form. So, to make things simpler, we can let <em>u</em> = cos(x). Substitute:

$-2u^2=-u-1$

Rearrange:

$2u^2-u-1=0$

Factor:

$(2u+1)(u-1)=0$

Zero Product Property:

$2u+1=0\text{ or } u-1=0$

Solve for each case:

$\displaystyle u=-\frac{1}{2}\text{ or } u=1$

Back-substitute:

$\displaystyle \cos(x)=-\frac{1}{2}\text{ or } \cos(x)=1$

Using the unit circle:

$\displaystyle x=\left\{0, \frac{2\pi}{3}, \frac{4\pi}{3}\right\}$

7 0

3 years ago

Messi kicks a soccer ball from a position that is 3 meters from a sideline and 4 meters from a goal

Katarina [22]

Answer:

$( 4.8 ,7.6)$

Step-by-step explanation:

We want to find the point, B(x,y) that divides the directed line segment from Messi, M(3,4) to S(6,10) in the ratio m:n=3:2

We use the section formula:

$( \frac{mx_2+nx_1}{m + n} ,\frac{my_2+ny_1}{m + n})$

We substitute the coordinates and the ratio into the section formula to get:

$( \frac{3 \times 6+2 \times 3}{3 + 2} ,\frac{3 \times 10+2 \times 4}{3+ 2})$

We simplify to get:

$( \frac{18+6}{5} ,\frac{30+8}{5})$

This gives us:

$( \frac{24}{5} ,\frac{38}{5})$

$( 4.8 ,7.6)$

6 0

3 years ago