Step-by-step explanation:
thats the answer i think
The answer for the exercise shown above is the second option, the option B, which is: B. In step 3, the addition property of equality was applied incorrectly.
The explanation is:
To solve this problem you must apply the proccedure shown below:. You have the followinwg equation:
<span>
4(m-3)+5(m+2)=m+9
Let's review the steps:
4m-12+5m+10=m+9 (step 1)
9m-2=m+9 (step 2)
8m =7 (step 3) (There is a mistake, because: 9m-m=9+2</span>⇒8m=11)
<span> m=11/8 This should be the step 4</span>
X^2 + 2x - 15
factors into (x+5)(x-3)
set this equal to 0 and get that x=-5 and x=3
Answer:
Step-by-step explanation:
cot²α csc α+2 cot α csc α-3 csc α
=csc α (cot²α+2cot α-3)
=csc α (cot² α+3cot α- cot α-3)
=csc α[cot α(cot α+3)-1(cot α+3)]
=csc α (cot α+3)(cot α-1)