Soluciona paso a paso 1. Sen^2x+senx
2. 9 sen^2x+6senx-8=0
3. 2tan^2X-secx=1
4. 4cos^3x-3cosx=0
5. 2sen^2x=1+cosx
6. 2cosx. senx+cosx=0
7. 2senx-3csc=5

idk what the heck he answer is, i’m just putting this here so i finish my account

fabric (square meters)                   cloaks

7                                                           21

4/3                                                         4

step-by-step explanation:

we are told that harry needs 2 square meters of fabric for every 6 wizard cloaks he makes.

1. first of all we will find how many cloaks can be made from 1 square meter of fabric by dividing 6 by 2.

we can see that 3 cloaks can be made from 1 square meter of fabric. now we will multiply 3 by 7 to find number of cloaks made from 7 square meters of fabric.

therefore, harry will make 21 cloaks from 7 square meters of fabric.

2. let us find how many square meters of fabric will be needed to make 4 cloaks.

first of all we will find fabric needed for 1 cloak by dividing 2 by 6.

we can see that fabric needed for 1 cloak is   square meter. now we will multiply   by 4 to find fabric needed for 4 cloaks.

in total they made   333.74 your welcome : d