Answer:
The Answer is C
Step-by-step explanation:
3x-4y=5
2x+4y=-3
This equation is the answer to this problem because just by looking at it, you can immediately cancel out the y value and solve for x.
The other equations are wrong because their is extra work needed to eliminate the values.
Answer:
b=17
Step-by-step explanation:
b=(45+6)/3
b=51/3
b=17
she bought 17 books since the original price of evereything was 51 dollars before the discount of 6 dollars.
Answer:
17/3 = 68/12
Step-by-step explanation:
17/3 =? 68/12
Get a common denominator of 12
17/3 * 4/4
68/12
They are equal so this is true
Step-by-step explanation:
The magnitude of x is equal or less than 7.
=> We have |x| <= 7.
Okay well then we can simplify it first by collecting like term: y=(x^3)-7x-5x y=x^3-12x then we find the derivative y'=3x^2-12 next we set the derivative to zero: 3x^2-12=0-->3(x^2-4)=0-->3(x-2)(x+2)=0 Thus our critical number are: x-2=0--->x=2 and x+2=0--->x=-2 Which is of course makes no sense since this not one of your possible choicesSHOW FULL ANSWER
