Answer:
Below in bold.
Step-by-step explanation:
The identity is of the form
(a + b)^2 = a^2 + 2ab + b^2.
a) Sqrt 49 = 7 and we need + 28 as the middle coefficient . We get this with
2*7 + 2*7 so the first coefficient is 2*2 = 4.
So * = 4a^2.
(2a + 7)^2 = (2a + 7)(2a + 7) = 4x^2 + 14a + 14a + 49.
b) -6 * -6 = 36 -24 = 2*-6 + 2 *-6 so the last term is 4x^2
c) The middle term must be an 'ab' term.
sqrt 6.25 = 2.5 and sqrt 1/4 = 1/2
So the coefficient of the middle term is 2.5 * 1/2 + 2.5 * 1/2
= 2.5
So the middle term is 2.5ab.
d) The first term will be in b^2.
100 = 10* 10 and we need 2 as a middle term so coefficient of the first term
will be 1/100 or 0.01. as the 2 comes from 0.1 * 10 + 0.01 * 10 and (0.1)^2 = 0.01
So it is 0.01b^2.
Answer:
15
Step-by-step explanation:
15 pages can henry white in 8 hours
Answer:
262080
Step-by-step explanation:
262080 is the answer because 8 x 60 is 480 and 480 x 546 is 262080
sorry if it is wrong
Hi!
the blue car will take a total of 6 hours to get there. so 9:30 plus 6 hours would arrive at 3:30pm.
the red car arrives there in just 3 hours but left at noon so 12:00pm plus 3 hours would arrive at 3:00 in the afternoon.
so as you can see the red car arrives first. :)
Given:
To find:
Which statement are true?
Solution:
Option A: The entire expression is a sum.
It is true because it performed addition operation.
Option B: The coefficient of s is 3.
It is not true because the coefficient of s is 
.
Option C: The term 
is a quotient.
If we divide 7 by r, we obtain a quotient.
So it is true.
Option D: The term 
has a variable.
It is not true because it does not contain any variable.
Therefore the entire expression is a sum and the term is a quotient are true statement.
