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2 years ago

What is the length of 7.2 ft & 9.6ft

Mathematics

2 answers:

ozzi2 years ago

5 0

Answer:

Step-by-step explanation:

Using Pythagorean Theorem we know that

a² + b² = c²

7.2² + 9.6² = c²

51.84 + 92.16 = 144

Then find the square root of your c and you should get 12

__________________________

Or: 7.2 + 9.6 = 16.8 ft if that's what you mean

BaLLatris [955]2 years ago

3 0

Answer:

16.8ft !

7.2 + 9.6 = 16.8 ft .

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A sample of 11 students using a Ti-89 calculator averaged 31.5 items identified, with a standard deviation of 8.35. A sample of

lina2011 [118]

Answer:

We reject H₀, with CI = 90 % we can conclude that the mean numbers of times identified with Ti-84 does not exceed that of the Ti-89 by more than 1,80

Step-by-step explanation:

Ti-89 Calculator

Sample mean x = 31,5

Sample standard deviation s₂ = 8,35

Sample size n₂ = 11

Ti-84 Calculator

Sample mean y = 46,2

Sample standard deviation s₁ = 9,99

Sample size n₁ = 12

t(s) = ( y - x - d ) / √s₁²/n₁ + s₂²/n₂

t(s) = 12,9 / √(99,8/12) + (69,72/11)

t(s) = 12,9 / √8,32 + 6,34

t(s) = 12,9 / 3,83

t(s) = 3,37

Test Hypothesis

Null Hypothesis H₀ y - x > 1,80

Altenative Hypothesis Hₐ y - x ≤ 1,80

We have a t(s) = 3,37

We need to compare with t(c) critical value for

t(c) α; n₁ +n₂-2 df = 12 +11 -2 df = 21

If we choose CI = 95 % then α = 5 % α = 0,05

From t-student table

t(c) = 1,72

t(s) = 3,37

t(s) >t(c)

t(s) is in the rejection region therefore we accept Hₐ with CI = 95 %

8 0

3 years ago

Which of these functions is not a linear function? Why?

Nitella [24]

Answer:

f(x)=x3

Step-by-step explanation:

If you meant f(x)=x3 by f(x)=x^3 then that would be a cubic equation and not linear?

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2 years ago

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QveST [7]

Answer:

320

Step-by-step explanation:

THe formula is (lwh )*3

l is length

w is width

h is height

6 0

3 years ago

If b – 4 = -12, what is the value of b?

suter [353]

Answer

b=-8

Step-by-step explanation:

b-4=-12

+4 +4

b=-8 =)

3 0

3 years ago

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Do this and thanks and tell me why you think it was a b or c maybe d

tino4ka555 [31]

<h2><u>Answer:</u></h2>

=> B) The amount of popcorn that fits in a particular container.

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$\infty \infty \infty$

6 0

2 years ago

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