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vichka [17]
3 years ago
14

2. 30 minutes to 18 minutes​

Mathematics
1 answer:
Gemiola [76]3 years ago
5 0

Ratio: 30:18

If you were asking for the ratio-

Compare: 30 minutes is 12 more minutes than 18

If you were asking which one is grater-

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7, 12, 10, 18, 13, 23, 29, 15, 16, 18, 15, 12, 20<br> find the outlier. explain your answer.
Naddik [55]

Answer:

29

Step-by-step explanation:

the rest of the numbers are closer to each other but if you plot these you see that 29 doesnt belong

4 0
3 years ago
After plotting the data where t represents the number of hours since time t=0, Kieran used technology and determined the appropr
Natalka [10]

Answer:

f(t) = 5(4)^t

f(3) = 5(4^3) = 5 * 64 = 320

6 0
3 years ago
Allen's hummingbird (Selasphorus sasin) has been studied by zoologist Bill Alther.† Suppose a small group of 10 Allen's hummingb
ruslelena [56]

Answer: provided in the explanation segment

Step-by-step explanation:

(a). from the question, we can see that since that б is known, we can use standard normal, z.

we are asked to find an 80% confidence interval for the average weights of Allen's hummingbirds in the study region. What is the margin of error?

⇒ 80% confidence interval for the average weight of Allen's hummingbirds is given thus;

x ± z * б / √m

which is

3.15 ± 1.28 * 0.32/√10

= 3.15 ± 0.1295 = 3.0205 or 3.2795

(b). normal distribution of weight (c) б is known

(c). option (a) and (e) are correct

(d).  from the question, let sample size be given as S

this gives';

1.28 * 0.32/√S = 0.15

√S = (1.28 * 0.32) / 0.15 = 2.73

S = 7.4529

cheers i hope this helps

6 0
3 years ago
Water flows through a pipe at a rate of 91 fluid ounces every 2.5 weeks. Express this rate of flow in cups per hour.
iris [78.8K]

Answer:

Rate = 0.2167\ fl\ oz/hour

Step-by-step explanation:

Given

Rate = \frac{91\ fl\ oz}{2.5\ weeks}

Required

Express the rate as per hour

Rate = \frac{91\ fl\ oz}{2.5\ weeks}

There are 168 hours in  a week;

So, the rate becomes

Rate = \frac{91\ fl\ oz}{2.5 * 168\ hours}

Rate = \frac{91\ fl\ oz}{420\ hours}

Rate = 0.2167\ fl\ oz/hour

Hence;

The equivalent of the given rate is 0.2167\ fl\ oz/hour

8 0
3 years ago
Which expression is the sum of three terms?
Umnica [9.8K]

Answer:

Step-by-step explanation:

count the + and - signs that usually tells you the amount of terms

d is the answer.

7 0
3 years ago
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