Answer:
$1.50
Step-by-step explanation:
6.50-2=4.50
4.50/3=1.50
Answer:
12/155
Step-by-step explanation:
<u>Total number of cookies:</u>
<u>Probability of getting a peanut butter cookie at first attempt is 9 out of 31:</u>
<u>Probability of getting a peanut butter cookie at second attempt is 8 out of 30 as one already taken and the total number has changed as well:</u>
<u>Probability of getting 2 peanut butter cookies is the product of each probability we got above:</u>
Answer:
see explanation
Step-by-step explanation:
This is a difference of squares and factors in general as
a² - b² = (a - b)(a + b)
16
= ( 4
)² ⇒ a = 4
1 = 1² ⇒ b = 1
Hence
16 - 1
= (4 )² - 1²
= (4 - 1)(4 + 1)
4 - 1 ← is also a difference of squares and factors as
(2x² - 1)(2x² + 1)
Thus
16 - 1
= (2x² - 1)(2x² + 1)(4 + 1 )
Answer:
The answer for ∠B = 68°
Step-by-step explanation:
Total angle in a triangle is 180° so you can just substract ∠A and ∠C from 180° :
∠A + ∠B + ∠C = 180°
90° + ∠B + 22° = 180°
∠B = 180° - 90° - 22°
= 68°
Answer:
x=-4 or x=-8
Step-by-step explanation:
I think those are correct. Pls let me know if they are wrong.
