9514 1404 393
Answer:
Jaime: yes: 29·31 = 900 -1 = 899
Raquel: 24·26 = 25^2 -1 = 624
Step-by-step explanation:
The difference of squares factors as the product of the sum and difference of the roots:
a^2 -b^2 = (a -b)(a +b)
<u>Jaime</u>
29·31 = (30 -1)(30 +1) = 30^2 -1^2 = 900 -1 = 899
Jaime can subtract 1 from 30^2 to find 29·31
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<u>Raquel</u>
24·26 = (25 -1)(25 +1) = 25^2 -1^2 = 625 -1 = 624
Raquel can subtract 1^2 from 25^2 to find 24·26.
Answer:
C. 4x - 2y = 5
Step-by-step explanation:
The resulting slope-intercept form would be y= 2x - 5/2 which has a slope of 2.
Answer: D
Step-by-step explanation:
so we know the probability of drawing a 9 is 25 percent or 1/4 because 9 is only one and doesn't repeat.
So the cards we drawn cards we drawn 2 times so multiply 1/4 times two.
1/4 * 2/1= 2/4 = 1/2
Answer:
15
Step-by-step explanation:
8+9.8x+9=7.6x-16
17+9.8x=7.6x-16
33+9.8x=7.6x
33=-2.2
15
