Answer: ![H_0:\mu=40](https://tex.z-dn.net/?f=H_0%3A%5Cmu%3D40)
![H_0:\neq40](https://tex.z-dn.net/?f=H_0%3A%5Cneq40)
Step-by-step explanation:
- A null hypothesis is a hypothesis where a researcher generally try to disprove, it says that there is no statistically significant relationship between the two variables .
- An alternative hypothesis says that there is a statistical significance between two variables.
Claim 1. : Mean age of online dating service users is 40 years.
i.e.
, since it has equals sign so we take this as null hypothesis.
Claim 2. : Mean age of online dating service users is not 40 years.
⇒ Null Hypothesis : ![H_0:\mu=40](https://tex.z-dn.net/?f=H_0%3A%5Cmu%3D40)
Alternative hypothesis : ![H_0:\neq40](https://tex.z-dn.net/?f=H_0%3A%5Cneq40)
Step-by-step explanation:
So, cost of 6.5 kg of apples is Rs. 520 and we need to find cost of one kg apples.
<h2>It can be done just by applying Unitary Method!</h2>
So,
6.5 kg -- Rs. 520
1 kg -- Rs.(520/6.5) = Rs.80
<h3>So, cost of 1 kg apples is Rs.80.</h3>
Answer:
B
Step-by-step explanation:
No matter how many times you multiply 1 by itself, it will always be 1 which makes A and D incorrect.
x is a power. The question is 1/4 * 1/4 * 1/4 which is 1/64
I think the answer might be D. If its greatest to least. I'm pretty sure it is D though. There is no answer for least to greatest in the correct order.
Answer:
∠ 1 = 65°
Step-by-step explanation:
The exterior angle of a triangle is equal to the sum of the 2 opposite interior angles.
5x - 10 is an exterior angle of the triangle, then
5x - 10 = 3x + 40 ( subtract 3x from both sides )
2x - 10 = 40 ( add 10 to both sides )
2x = 50 ( divide both sides by 2 )
x = 25
The sum of the 3 angles in a triangle = 180° , so
∠ 1 + 40 + 3x = 180°
∠ 1 + 40° + 3(25) = 180°
∠ 1 + 40° + 75° = 180°
∠ 1 + 115° = 180° ( subtract 115° from both sides )
∠ 1 = 65°