Answer:
The binomials 16x2 + 9 and x2 + 16 didn’t have an equivalent factored form. Both are sums of perfect squares instead of differences.
Step-by-step explanation:
Official answer
Answer:
The correct form for each case is:
- a) 4 (5x + 6) = 20x + 24
- b) -5 (2x - 3) = -10x + 15
- c) 3 (9x + 2y) = 27x + 6y
Step-by-step explanation:
I'm gonna give you the reason for each case.
a) The original equation is:
Now, we're gonna solve the first part of the equation and comparate:
How you can see, the first part is different from the last number, for this reason, the mistake is the 6, then I change it by the 24.
b) The original equation is:
As the previous exercise, we're gonna solve the first part:
You must know that when you multiply two negative signs, the result is positive.
c) The original equation is:
But, this equation can be made in this form:
How you can see, the first part can't be operated or anything, the one form to operate this is removing the plus sign and operating like a multiply.
- 3 (9x + 2y) = 27x + 6y
- 27x + 6y = 27x + 6y
From the information below the games is over in 3 sets. For Gina to win the match there are 3 possibilities.
1) Gina wins the first 2 sets with probability
2)Gina wins the first set. Looses the next set. Wins the third set.
3)Gina looses the first set. Wins the next 2 sets.
The required probability that Gina wins is the sum of the above 3 probabilities . That is the probability that Gina wins the match is
Model A is 7.125 ft wide. Model B is 93/12 = 7
![\frac{9}{12}](https://tex.z-dn.net/?f=%20%5Cfrac%7B9%7D%7B12%7D%20)
or 7
![\frac{3}{4}](https://tex.z-dn.net/?f=%20%5Cfrac%7B3%7D%7B4%7D%20)
which can be written as the decimal 7.75
To compare we add a zero to make them the same length
7.125 < 7.750 so Model B is wider by .625ft (or 5/8 of a foot)