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BaLLatris [955]
3 years ago
6

Amira’s karate class last one hour and 15 minutes and it is over at 5 PM what time does Amira’s karate class start

Mathematics
2 answers:
Romashka [77]3 years ago
8 0

Answer:

3.46 because taking 1.05 minutes is 5.00 and 60 second make one hour

Reil [10]3 years ago
4 0
3.45 pm this is because if you take 1.15 hours off of 5.00 you get 3.45
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A building was measured with a degree of accuracy to the nearest 0.5ft; 30ft × 40ft. What is the largest possible area of the bu
ddd [48]

The largest possible dimensions with that accuracy are 30.25 ft by 40.25 ft. The product of these dimensions is 1217.5625 ft², about ...

 1218 ft²

_____

Any larger dimensions would be rounded to 30.5 ft or 40.5 ft (or more), so would not be reported as 30 ft by 40 ft.

5 0
3 years ago
Read 2 more answers
A researcher wanted to determine whether certain accidents were uniformly distributed over the days of the week. The data show t
Cloud [144]

Answer:

Chi-square = 4.600

Degrees of freedom= 6

there is no evidence to reject hypothesis.

Step-by-step explanation:

H₀ : uniformly distributed

H₁: not uniformly distributed                            

Suppose some value of observed or expected frequency  

Observed frequency : 39 40 30 40 41 49 41     Total: 280

Expected frequency  :  40 40 40 40 40 40 40  Total: 280

Calculated the chi-square value

Chi-square = sigma {(O-E)^2/E}

= 0.025+0.000+2.500+0.000+0.025+2.025+0.025  

 4.600

Degrees of freedom=d f = n-1 = 7-1 = 6

Chi-square for 6 d.f at alpha = 0.05 is 12.59

Chi-square of calculated value < its critical value at alpha = 0.05, we see that there is no evidence to reject hypothesis.

The frequency of Sat is wrongly taken as 41 instead of 51

8 0
3 years ago
What is the square root of 25p^3 expressed in simplified form?
notka56 [123]
The first step to solving this is to factor out the perfect square of 5²
\sqrt{ 5^{2}  p^{3} }
next,, factor out the perfect square of p³
\sqrt{ 5^{2}  p^{2} x p}
the root of a product is equal to the product of the roots of each factor 
√5² √p² √p
now reduce the first index of the radical and the exponent with 2
5√p² √p
then reduce the second index of the radical and exponent with
5p√p
this means that the correct answer to your question is 5p√p
let me know if you have any further questions
:)
6 0
4 years ago
Jennifer paid $145.60 for 4 chairs.
ale4655 [162]
Answer $36.04

explanation : divide the total, ($145.60) by the amount of chairs (4) and you get your answer
8 0
3 years ago
Read 2 more answers
How do u guys solve this?
enyata [817]
Just graph it in the calculator
6 0
3 years ago
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