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3 years ago

a school day begins at 8:05 am and ends at 3:45 pm. How long is the school day? give answer using hours and minutes.

Mathematics

2 answers:

den301095 [7]3 years ago

6 0

The answer would be 7 hours and 40 minutes

Colt1911 [192]3 years ago

6 0

7 hours and 40 minutes.
hope that helps. message me if it does

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In ΔDEF, the measure of ∠F=90°, DF = 24, FE = 7, and ED = 25. What ratio represents the sine of ∠E?

kumpel [21]

Answer:

24/25

Step-by-step explanation:

In this triangle DF and FE are legs (because they form the right angle) , ED is the hypotenuse (it is the largest side, it is opposite to the right angle).

son of E is the ratio of the leg opposite to the angle E (DF) to the hypotenuse

it is 24/25

4 0

2 years ago

The competitive advantage of small American factories such as Tolerance Contract Manufacturing lies in their ability to produce

Tom [10]

Answer:

Following are the solution to the given question:

Step-by-step explanation:

Please find the complete question in the attached file.

$H_0: \sigma^{2} \leq 0.0008\\\\H_a: \sigma^{2} > 0.0008$

The testing states value is:

$\to x^2=\frac{(n-1)s^2}{\sigma^2}=32.6250$

therefor the $\rho - \ value = 0.2931$

Through out the above equation its values Doesn't rejects the H_0 value, and its sample value doesn't support the claim that although the configuration of its dependent variable has been infringed.

5 0

2 years ago

The current temperature is 8 degrees fahrenheit. By how many degrees does the temperature need to change to reach 7 degrees fahr

trapecia [35]

Answer:

-8-7= 15

so the answer is 15

Step-by-step explanation:

6 0

3 years ago

Mary's 3 hamsters each eat three-eighths of cup of grain a day, if she has 6 and 3/4 cups of grain, how many days will the grain

muminat

Hello!

3/8 times 3 equals 9/8 which is also 1 1/8. If you multiply 3/4 by two (numerator and denominator) then you will get 6/8. And if you multiply 9/8( I just find it easier with 9/8) by 6 you will get 54/8. And the grain will last for 6.75 days.

I may be wrong let me know.
Hope this helps!

5 0

3 years ago

Read 2 more answers

Find the coordinates of the midpoint of a segment with the given endpoints. *

serg [7]

Step-by-step explanation:

Given points are (-2,5) and (3,-17)

to find midpoint, use this formula

( x1+x2/2 , y1+y2/2)

where points are a(x1,y1) and b(x2,y2)

coming to the question,

midpoint is :