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3 years ago

Evaluate 9 ÷ 3[(18 − 6) − 22]. a: 0.188 b: 0.375 c: 24 d: 48

Mathematics

1 answer:

vivado [14]3 years ago

4 0

Answer:

b is the answer of this question

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Hey help me with this no trolls

german

Answer:

Peytons car travels 14.8 miles less than Madeline's car in with one gallon

Step-by-step explanation:

peytons car uses 1 gal to travel 22.1 miles and Madeline's care uses 1 gal to travel 36.9. 36.9-22.1 = 14.8

ta da

6 0

3 years ago

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A clinical trial was conducted to test the effectiveness of a drug for treating insomnia and older subjects before treatment 14

RideAnS [48]

Answer:

99% confidence interval estimate of the mean weight time for a population with drug treatments

(79.11 , 112.69)

Step-by-step explanation:

Step(i):-

Given data mean of the Population = 104 minutes

Given sample size 'n' =14

Mean of the sample(x⁻) = 95.9 minutes

Given Standard deviation = 24.4 minutes

Step(ii):-

99% confidence interval estimate of the mean weight time for a population is determined by

$(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} +Z_{0.01} \frac{S.D}{\sqrt{n} })$

$(95.9 - 2.576\frac{24.4}{\sqrt{14} } , 95.9+2.576\frac{24.4}{\sqrt{14} })$

On calculation , we get

(95.9 -16.79 , 95.9 +16.79)

(79.11 , 112.69)

Conclusion:-

99% confidence interval estimate of the mean weight time for a population with drug treatments

(79.11 , 112.69)

7 0

3 years ago

PLEASE ANSWER ASAP

vovikov84 [41]

Answer:

15 years

Step-by-step explanation:

subtract 30000 from 36000 to get 6000, then subtract 2000 from 2400, you get 400, then divide 6000 by 400

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3 years ago

Using Pythagoras, find the lengths of the sides labelled with letters.

vladimir1956 [14]

Answer:

Step-by-step explanation:

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2 years ago

Multiply (6 + 2i)(6 – 2i) O 32 O 40 O 36 + 12i O 36 - 12i

Alenkinab [10]

Answer:

Step-by-step explanation:

6*6/6*-2i/2i*6/2i*-2i

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4 years ago

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