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tangare [24]
3 years ago
7

Recall that two angles are complementary if the sum of their measures is 90 degrees. Find the measure of two complementary angle

s if one is eight times the other angle
Mathematics
1 answer:
meriva3 years ago
3 0
80° and 10°
...............
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In a sample of 57 temperature readings taken from the freezer of a restaurant, the mean is 29.6 degrees and the population stand
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Answer:

(29.14 ; 30.06)

Step-by-step explanation:

Given that'

Sample size (n) = 57

Mean (m) = 29.6

Population standard deviation (σ) = 2.7

Confidence interval = 80%

= (1 - 0.8) / 2 = 0.1

Mean ± z * σ/√n

Using the Z probability calculator : Z0. 1 = 1.28

Hence,

29.6 ± 1.28 * (2.7 / √57)

29.6 - (1.28 * 0.3576237) ; 29.6 + (1.28 * 0.3576237)

29.142241664 ; 30.057758336

(29.14 ; 30.06)

8 0
3 years ago
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$119 - $68 = $51

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.75 x 100 = 75%

So, there was a 75% percent increase in the price.

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4/18

Step-by-step explanation:

3 0
2 years ago
(2.0x10^4)(3.0x10^3)
krok68 [10]
<span>(2.0x10^4)(3.0x10^3)
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A fair die is cast four times. Calculate
svetlana [45]

Step-by-step explanation:

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8 0
3 years ago
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