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Mathematics

1 answer:

Korolek [52]3 years ago

5 0

When you rotate the ef counter lock 180 degrees, the new line e'f' will have the same length as ef.

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The 50th term of an arithmetic sequence is 86 and the common difference is 2. Find the first three terms of the sequence.

Nesterboy [21]

$a_n=a_{n-1}+d=a_{n-2}+2d=\cdots=a_1+(n-1)d$

which means

$a_{50}=86=a_1+49\times2\implies a_1=-12$

which in turn means the next two terms are $a_2=-10$ and $a_3=-8$ .

6 0

3 years ago

Check all of the steps that would be used to solve this equation: 2(x-5)=24

aliya0001 [1]

X=17

Distribute 2(x-5)
You are left with 2x-10=24
You then want to get 2x by itself so add 10 on both sides so that you get 2x=34
Isolate x completely by dividing by 2 on both sides which then leaves you with x=17

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3 years ago

B) A stationer fixes an equal rate of profit in his each item. If he sells a calculator costing Rs 700 for Rs 756, how much shou

inna [77]

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3 years ago

The temperature inside a certain industrial machine at time t seconds after startup, for 0 < t < 10, is given by h(t) = 42

frutty [35]

Answer:

$t= \frac{125}{38} s$