Answer:
{-2, 5}
Step-by-step explanation:
I used a calculator, pls let me know if im incorrect
x^2 − 3x − 10 = 0
Step 1: Factor left side of equation.
(x+2) (x−5) = 0
Step 2: Set factors equal to 0.
x + 2 = 0 or x − 5 = 0
x = −2 or x = 5
Those are the steps that the calculator said to do ^
Answer:
Step-by-step explanation:
We know that ,
Null hypothesis
is a statement that contains the population parameter to represent claim or against claim statement along with = , ≤ and ≥ signs.
Where as Alternative hypothesis
is also a statement that contains the population parameter but against the null hypothesis . It contains ≠ , < and > signs.
In the given situation, the population parameter is population mean 
.
Claim: The mean pulse rate (in beats per minute, or bpm) of adult males is equal to 69 bpm.
i.e.
and [Against 
]
Answer:
The third one is unbiased because its not specific and it's not involving a group of people or a comparison of things. It's also not specific. It's asking about lowering the expensive sales tax in the city and not to certain people, etc..
Hope it's right:)
Answer:
252 = 22 × 32 × 7;
58 = 2 × 29;
Multiply all the prime factors, by the largest exponents.
Least common multiple:
lcm (252; 58) = 22 × 32 × 7 × 29;
lcm (252; 58) = 22 × 32 × 7 × 29 = 7,308
the numbers have common prime factors
26' wheel @ 90 rpms = 2,340 inches / min (26 x 90)
2,340 inches / min = 140,400 inches / hour (2,340 x 60)
140,400 inches / hour = 11,700 feet / hour (140,400 / 12)
11,700 feet / hour = approx. 2.216 miles / hour (11,700 / 5,280)
