60x0.25=15
60x0.10=6
51x0.25=12.75
13.35-12.75
D-6
Q-51
Answer: 5931.8m^2
Explanation:
Explanation:
85.9 x 48 + 3.14 x 24^2
= 4123.2 + 1808.64
= 5931.8m^2
The answer to the question is 112°
First, you must set up an equation to find x.
Then, you must use distributive property to simplify the parentheses.
Next, add like terms.
Then, subtract 20 on each side.
Next, divide 10 on each side.
Now, you must substitute 34 in for x.
Answer:
C.
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
If C is the correct answer and if the final result is multiplied out, where does the minus sign in a^4 - b^4 come from? All pluses don't make a minus. A is incorrect.
If D is correct, then a^2 - b^2 should be further factored producing a different kind of answer, like (a + b)^2(c-d)^2 which is not the same as a^4 - b^4. So D is not correct.
The first step in factoring a^4 - b^4 is (a^2 + b^2)(a^2 - b^2) A doesn't lead you anywhere. A is incorrect. The answer must be B.
a^4 - b^4 = (a^2 - b^2)(a^2 + b^2) The first term factors.
a4 - b^4 = (a + b)(a - b) (a^2 +b^2)
