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Simora [160]
3 years ago
11

A submarine that is already at 605 feet below sea level ascends (rises up) 475 feet before descending (sinking down) another 255

feet.
Mathematics
1 answer:
lisabon 2012 [21]3 years ago
8 0

Answer:

-350ft

Step-by-step explanation:

so basically 605 is negative and 255 is a negative then you add those two then it would be -860 then you subtract the positive 475 and that will equal -350

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What is the equation of the line which includes points (1, 1) and (1, 5)?
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Equation of the line that includes points (1, 1) and (1, 5) is a vertical line given by x = 1.
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3 years ago
(2/5) x ( - 5/4) Can someone please help me
anastassius [24]
The answer would be -10/20 which is simplified to -1/2
5 0
3 years ago
Read 2 more answers
A courier service company wishes to estimate the proportion of people in various states that will use its services. Suppose the
a_sh-v [17]

Answer:

Probability that the sample proportion will be less than 0.03 is 0.10204.

Step-by-step explanation:

We are given that a courier service company wishes to estimate the proportion of people in various states that will use its services. Suppose the true proportion is 0.04.

Also, 469 are sampled.

<em>Let </em>\hat p<em> = sample proportion</em>

The z-score probability distribution for sample proportion is given by;

              Z = \frac{ \hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }  ~ N(0,1)

where, \hat p = sample proportion

           p = true proportion = 0.04

           n = sample size = 469

The Z-score measures how many standard deviations the measure is away from the mean. After finding the Z-score, we look at the z-score table and find the p-value (area) associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X.

So, probability that the sample proportion will be less than 0.03 is given by = P( \hat p < 0.03)

       P( \hat p < 0.03) = P( \frac{ \hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } } < \frac{0.03-0.04}{\sqrt{\frac{0.03(1-0.03)}{469} } } ) = P(Z < -1.27) = 1 - P(Z \leq 1.27)

                                                                      = 1 - 0.89796 = 0.10204

Now, in the z table the P(Z \leq x) or P(Z < x) is given. So, the above probability is calculated by looking at the value of x = 1.27 in the z table which has an area of 0.89796.

Therefore, probability that the sample proportion will be less than 0.03 is 0.10204.

5 0
3 years ago
Solve the equation<br> A+b - c =180 for C
spayn [35]
A = 180
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5 0
3 years ago
6(a-5)=105 solve for A
Paraphin [41]

Answer:

i think its 45/2

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6 0
3 years ago
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