Hi Haley,
Find the product mentally. [(x + 1)(x - 1)]^2
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Solution:
= (x^2 − 1)^2
= (x^2 − 1) * (x^2 − 1)
Answer: x^4 − 2x^2 + 1
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Hope This Helps :)
Answer:
9/4 yds fabric per 1 ft of ribbon
Step-by-step explanation:
3/4 yd fabric is required for every 2/3 ft of ribbon. Let's put this info into an equation of ratios to figure out the number of yards of fabric required for every ONE ft of ribbon:
3/4 yd fabric 2/3 ft ribbon
----------------------- = ---------------------
x 1 ft ribbon
Use cross mult. to solve this. We obtain 3/4 = (2/3)x.
Mult. both sides by (3/2) yields (3/2)(3/4) = (3/2)(2/3)x = x.
This comes out to 9/4 yds fabric per 1 ft of ribbon.
Answer:
135.02
Step-by-step explanation:
C = 3.14 x 43
C = 135.02
Evaluating the tangent function for the two values we obtain the following:
tan 135=tan(135+180)=tan 315=-1
next:
tan -135=tan(180-135)=tan 45=1
thus comparing the two we see that tan 135 is negative while tan -135 is positive
Answer:
B
Step-by-step explanation:
This is the difference of perfect squares, which follows a pattern of
(A+B)(A-B)
We have 64, which is 8-squared,
we have A squared, which is A squared ( :/ )
we have 81, which is 9-squared, and
we have B-squared, which is B squared.
We can factor this then following the pattern into:
(8A+9B)(8A-9B)
Choice B only matches one of our binomials.
