Answer:
see explanation
Step-by-step explanation:
∠2 and ∠3 are same- side interior angles and are supplementary.
1/4(5b + 11) = 19....multiply both sides by 4, eliminating the 1/4
5b + 11 = 19 * 4
5b + 11 = 76
5b = 76 - 11
5b = 65
b = 65/5
b = 13 <==
-- The first urn has 9 balls in it all together, and 2 of them are white.
If you don't peek, then the prob of pulling out a white ball is 2/9 .
-- The second urn has 13 balls in it all together, and 3 of them are white.
If you don't peek, then the prob of pulling out a white ball is 3/13 .
-- The probability of being successful BOTH times is
(2/9) x (3/13) = ( 6/117 ) = about 0.0513 or 5.13% (rounded)
Answer:
(C
) b(x)=4(x+2)(x−2)
Step-by-step explanation:
We are given
The number of blue tiles in her design is modeled by the function b(x)=
if the no of blue tiles used is zero then
b(x) = = 0
= 4
x = +2 and -2
this is the condition for blue tiles
Modelling
b(x) = 4(x+2)(x-2)
This means when the blue tiles used are zero, then we use 2 red tile on each of the two square of 4 square. so the length will be 4 tiles long and its a square so 4x4 = 16 red tiles.
Step-by-step explanation:
the answer is a bc it just makes sense