Can you provide more information?
Hint:
Ax+By+C= D
is parallel to
Ax+By+C= E
So in this case,
2x−9y+4z=5
is parallel to
2x−9y+4z=k
for any real number k
Answer:
Andrew's test score if he got 8 questions wrong = 64 points
Andrew's test score if he got x questions wrong = 80 - 2x
Step-by-step explanation:
Total points of the multiple choice test = 80
Each question = 2 points
Total questions = Total points of the multiple choice test / 2 points
= 80/2
= 40
Total questions = 40
A. What would be Andrew's test score (out of 80) if he got 8 questions wrong
If he got 8 questions wrong out of 40 questions
= Total question points - wrong question points
= 40*2 - 8*2
= 80 - 16
= 64 points
Andrew's test score if he got 8 questions wrong = 64 points
B. What would be his score if he got x questions wrong?
Test points if he got x questions wrong = Total question points - wrong question points
= (40 * 2) - (x * 2)
= 80 - 2x
Andrew's test score if he got x questions wrong = 80 - 2x
Answer:
x = 11
Step-by-step explanation:
3x - 5 = 2x + 6
Add 5 to each side:
3x = 2x + 11
subtract 2x from each side:
x = 11
Substitute to check:
3x - 5 = 2x + 6
3 ( 11 ) - 5 = 2 ( 11 ) + 6
33 - 5 = 22 + 6
28 = 28
Answer:
x³\⁴
Step-by-step explanation:
√x × ⁴√x = ⁴√x³
According to the Radical-to-Exponent Rule [part II], the root becomes your denominator and the exponent becomes your numerator. Then use <em>Product-to-Power</em> Exponential Rule, which states that when you multiply bases with exponents, you keep the base and add the exponents, to finish it off. This is when your exponent is greater than 1:
x¹\² × x¹\⁴ → x²\⁴ × x¹\⁴ = x³\⁴
If you are ever in need of assistance, do not hesitate to let me know by subscribing to my You-Tube channel [USERNAME: MATHEMATICS WIZARD], and as always, I am joyous to assist anyone at any time.
**I have a video that explains all six exponential rules. It is titled "Six Exponential Procedures". I encourage you to watch the video and gain alot more knowledge from it, so you can better understand the concepts.