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2 years ago

Please please help please please

Mathematics

1 answer:

creativ13 [48]2 years ago

3 0

Answer:

Step-by-step explanation:

With reference angle 53°

base (b) = 45

hypotenuse (h) = K

Now

cos 53° = b / h

0.6 = 45 / K

K = 45 / 0.6

K = 75

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Each year, Sandy measures the height of a tree growing in her yard. The graph shows the yearly height. Choose any two points on

inna [77]

Answer:

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Step-by-step explanation:

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2 years ago

I need help, look at the picture.

worty [1.4K]

The order would be
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7 0

3 years ago

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

2 years ago

64,223=_____=641.23

FrozenT [24]

Answer: Check

12^10 × 12^(-2) = 12^(10 - 2) = 12^8

________________________________

Second option : ---

3^2 × 4^6 = 3^2 × 4^2 × 4^4 = 12^2 × 4^4

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Third option : ---

(12^8)^0 = 12^(8 × 0) = 12^0 = 1

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4th option : Check

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= 12^8

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5th option : Check

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Step-by-step explanation:

3 0

2 years ago

a child should no longer play in the kid zone area when they reach 4'4" tall joe is 54" tall is he allowed to play in the kid zo

Andreyy89

Answer: No.

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6 0

3 years ago