Answer:
(6a - 7b)(6a + 7b)
Step-by-step explanation:
Given
36a² - 49b² ← this is a difference of squares and factors in general as
a² - b² = (a - b)(a + b)
Thus
36a² - 49b²
= (6a)² - (7b)²
= (6a - 7b)(6a + 7b)
Answer:
B. -2, -1/2, 1, 3
Step-by-step explanation:
ANSWER
EXPLANATION
From the given information, Elena chooses a number from 1 to 10.
The sample space is
S={1,2,3,4,5,6,7,8,9,10}
n(S)=10
The numbers greater than 5 are:
E={6,7,8,9,10}
n(E)=5
The probability that, she chooses a number greater than 5 is:
Substitute the values,
Term 1, n = 1
5 + 2 × 1 = 5 + 2 = 7
term 2, n = 2
5 + 2 × 2 = 5 + 4 = 9
term 3, n = 3
5 + 2 × 3 = 5 + 6 = 11
term 4, n = 4
5 + 2 × 4 = 5 + 8 = 13
7, 9, 11, 13
a)
F = (K - 273.15) + 32
<u>- 32</u> <u> - 32</u>
F - 32 = (K - 273.15)
(F - 32) = [(K - 273.15)]
(F - 32) = K - 273.15
- = K - 273.15
- 57.6 = K - 273.15
<u> + 273.15</u> <u> + 273.15 </u>
- 215.55 = K
b)
- 215.55 = K
324 - 215.55 = K
108.45 = K