3 years ago

He measure of angle AFB = 78°

Mathematics

1 answer:

Nataly_w [17]3 years ago

4 0

Answer:

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What’s the median number

marta [7]

Vas happenin!!

The median is 94.7

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3 years ago

While shopping this week I misread my shopping list and bought 5 bread and 2 milk. I got a refund and bought 2 bread and 5 milk.

user100 [1]

Suppose x is the total cost for the first purchase, cost of the bread = b and cost of the milk = m
Then:-
y = 5b + 2m
y - 4.2 = 2b + 5m
Subtract:-
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b - m = 4.2 / 3 = 1.4

That is bread costs $1.40 more than the milk. (Answer). Its A

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4 years ago

Read 2 more answers

Find the sum of series 4/(4n-3) (4n+1)

ANTONII [103]

$\dfrac4{(4n-3)(4n+1)}=\dfrac1{4n-3}-\dfrac1{4n-1}$

Assuming the sum starts at $n=1$ , the $N$ th partial sum is

$\displaystyle\sum_{n=1}^N\left(\frac1{4n-3}-\frac1{4n-1}\right)=\left(1-\frac15\right)+\left(\frac15-\frac19\right)+\cdots+\left(\frac1{4N-7}-\frac1{4N-3}\right)+\left(\frac1{4N-3}-\frac1{4N+1}\right)$
$\displaystyle\sum_{n=1}^N\left(\frac1{4n-3}-\frac1{4n-1}\right)=1-\frac1{4N-1}$

As $N\to\infty$ , you're left with simply 1.