Answer:
False
True
True
False
Step-by-step explanation:
Answer:
In order to solve this equation, you have to isolate the x and set it equal to a number. I chose to add 8x to both sides, making it -2x - 5 = 11. Then add 5 to both sides, making it -2x = 16. Divide both sides by -2 to get x = -8. -8 is your answer. Hope this helps!
Answer:
3156
Step-by-step explanation:
- <em>Used formula:</em>
- <em>(1² + 2² + 3² + ... + n²) =1/6*n(n + 1)(2n + 1)</em>
--------
- 10²+12²+14²+......+26² =
- (2*5)²+(2*6)² + (2*7)² + ... + (2*13)² =
- 4*(5²+6²+7²+...+13²) =
- 4*(1²+2²+...+13² - (1²+2²+3²+4²)) =
- 4*(1/6*13(13+1)(2*13+1) - (1+4+9+16)) =
- 4*(1/6*13*14*27- 30) =
- 4*(819 - 30) =
- 4*789 =
- 3156
Answer:
1. -1/4
2. y + 4 = -1/4(x + 2)
3. -9/2
Step-by-step explanation:
Answer: The theoretical probability of the coin landing heads up is 0.7
Step-by-step explanation:
Hi, to answer this question we simply have to divide the number of times that the coin lands heads up (42 times) by the number of times that the coin was flipped:
Mathematically speaking:
42 /60 = 0.7 (decimal form)
The theoretical probability of the coin landing heads up is 0.7
For the or percentage form we simply multiply the result by 100:
0.7 (100) = 70%
Feel free to ask for more if needed or if you did not understand something.
