3 years ago

Algebra 2 hurry please

Mathematics

1 answer:

Wittaler [7]3 years ago

7 0

Answer:

The second answer 0.0380

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The base of a triangular pyramid has an area of 20 square feet. The height of the pyramid is 36 feet. The volume of the pyramid

fenix001 [56]

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so what's the question? i'm a bit confused..

Step-by-step explanation:

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2 years ago

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WARRIOR [948]

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An educational psychologist wishes to know the mean number of words a third grader can read per minute. She wants to make an est

MrRa [10]

Answer:

85% level of the confidence interval is

(26.337, 26.662)

Step-by-step explanation:

Explanation:-

Given the size of the sample 'n' = 295

Mean of the sample x⁻ = 26.5

The Standard deviation of the Population = 2.7

85% level of the confidence interval is determined by

$(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })$

Critical value Z₀.₁₅ = 1.036

85% level of the confidence interval is determined by

$(x^{-} - Z_{0.15} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.15} \frac{S.D}{\sqrt{n} })$

$(26.9 -1.036 \frac{2.7}{\sqrt{295} } , 26.5 + 1.036 \frac{2.7}{\sqrt{295} })$

( 26.5 - 0.1628 , 26.5+0.1628)

(26.3372,26.6628)

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3 years ago

14 1/6 - 7 1/3 in simplest form Help plz

Firdavs [7]

Answer: 7 -1/6

Step-by-step explanation:

Multiply the denominator and numerator (1/3) by 2 to get 2/6, then do 1/6-2/6, which gives you a negative. Then subtract your whole numbers (14-7) to get 7 -1/6

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The diagram shows a circle inside a square. a 16 cm Work out the area of the circle.

Ratling [72]

Answer 234

hope helped

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