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3 years ago

45+ 46+47+ 48+ ... 113 + 114Gauss approach

Mathematics

1 answer:

Doss [256]3 years ago

3 0

Answer:

$5565$

Step-by-step explanation:

$1+2+3+4...+113+114=\frac{114*115}{2} =6555$

$1+2+3+4 ... +43+44=\frac{44*45}{2} =990$

Thus, $45+46+47+48...+113+114=$ $6555-990=5565$

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2 years ago

Imagine an experiment with 20 groups, and within each group, there are 50 participants. How many degrees of freedom are there fo

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Answer: There are 980 degrees of freedom for the within subjects factor.

Step-by-step explanation:

Since we have given that

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6 0

2 years ago

Lalo has 1,500 minutes per month on his cell phone plan. How many more minutes can he use if he has already talked for 785 minut

Ket [755]

Answer:

715 minutes

Step-by-step explanation:

we know that

To find out how many more minutes he can use, subtract the number of minutes he has already talked from the number of minutes of his plan

Let

x -----> the number of minutes of his plan

y -----> he number of minutes he has already talked

$x-y$

we have

$x=1,500\ min\\y=785\ min$

substitute

$1,500-785=715\ min$

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3 years ago