This problem is so hard

3/7

Step-by-step explanation:

Sin (R) = opposite ÷ hypotenuse,

Find the opposite by using pythagorean theorem.

(AY)^2 + (2√10)^2 = 7^2

(AY)^2 + 40 = 49

(AY)^2 = 9

AY = 3

Sin(R) = 3/7

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation: