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grin007 [14]
2 years ago
14

A sum of money amounts to Rs 1380 in3 years and to Rs 1500 in 5 years.Find the rate of interest.

Mathematics
1 answer:
Stella [2.4K]2 years ago
6 0

Answer:98

Step-by-step explanation:

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It is important that face masks used by firefighters be able to withstand high temperatures because firefighters commonly work i
USPshnik [31]

Answer:

The 93% confidence interval for the true proportion of masks of this type whose lenses would pop out at 325 degrees is (0.3154, 0.5574). This means that we are 93% sure that the true proportion of masks of this type whose lenses would pop out at 325 degrees is (0.3154, 0.5574).

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence level of 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

For this problem, we have that:

n = 55, \pi = \frac{24}{55} = 0.4364

93% confidence level

So \alpha = 0.07, z is the value of Z that has a pvalue of 1 - \frac{0.07}{2} = 0.965, so Z = 1.81.

The lower limit of this interval is:

\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4364 - 1.81\sqrt{\frac{0.4364*0.5636}{55}} = 0.3154

The upper limit of this interval is:

\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.4364 + 1.81\sqrt{\frac{0.4364*0.5636}{55}} = 0.5574

The 93% confidence interval for the true proportion of masks of this type whose lenses would pop out at 325 degrees is (0.3154, 0.5574). This means that we are 93% sure that the true proportion of masks of this type whose lenses would pop out at 325 degrees is (0.3154, 0.5574).

8 0
3 years ago
WILL MARK BRAINLIEST!!! 70 POINTS!!! for real answers plz(●'◡'●)
Slav-nsk [51]

Answer:

In explanation ! :P

Step-by-step explanation:

Likes hamburgers and burritos : 39

Likes nothing : 33

Total missing : 205

Percentage who do like nothing : 16,09 %

Percentage who like all (without frequency table ) : 19,02 %

( without relative frequencies, sorry they don't let me :( : Is people who don't like burritos but likes hamburgers,they are the strongest )

I hope I helped you !^^

Sorry they don't let me do the frequency table ! :(

5 0
3 years ago
Simplify the expression <br> (Show work if you can)
Alborosie
This equation can be written as

(v-8)(v+5)/ (v-8)(v-3)
= v+5/v-3

4 0
3 years ago
Identify whether the following equation has a unique solution, no solution, or infinitely many solutions.
fredd [130]

Answer:

no solution

Step-by-step explanation:

4( − 11) = 15 − 4

-44 = 11

Since this iS FALSE, it means that the equation given has no solution

7 0
3 years ago
H(x)=x²-5<br> Find h(-7)
Naily [24]

Answer:

h(x) = 44

Step-by-step explanation:

h(x) = x² - 5, h(-7) means x = -7

h(x) = (-7)² - 5

h(x) = 49 - 5

h(x) = 44

4 0
2 years ago
Read 2 more answers
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