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3 years ago

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WILL GIVE BRAINLIEST AND 30 POINTS! Peter calculated |5 + 13i| by finding Where was Petey’s mistake? He should not have used the

Pythagorean theorem. He should have used 13 instead of 13i. (13i)2 = 169, not –169.

2 answers:

tiny-mole [99]3 years ago

5 0

Answer: He should have used 13 instead of 13i

Step-by-step explanation:

katen-ka-za [31]3 years ago

4 0

The next answer on Edge is approximately 8.6

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The quotient of 12 and the product of 5 and t

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The quotient of 12 and the product of 5 and t is:

$\frac{12}{5t}$

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3 Buses

Step-by-step explanation:

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3 years ago

Can anyone answer this for me?

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$x\geq 5$

Step-by-step explanation:

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3 years ago

You spin a spinner with 4 sections 1 yellow (y) , 1 purple (p) 1 red (r) and 1 blue (b) which is the sample space for one spin o

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Step-by-step explanation:

apex said it was right

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3 0

3 years ago

Read 2 more answers

A frog sits at one end of a table which is 2m long. In its first jump the frog goes a distance of 1m along the table, with its s

Phantasy [73]

Ah, this is an infinite sum question, or a sum of geometric sequence
when will the sum reach 1cm of the edge or about 1.99m
so

2m=200cm
within 1cm means at least 1.99m
so
we will use m and not cm for consitancy

sum of geometric sequence is
$S_n= \frac{a_1(1-r^n)}{1-r}$
a1=first term=initial jjump=1
r=common ratio=1/2
n=?, we ar solving for that

so
we want it to equal 1.99 so

$1.99= \frac{1(1- (\frac{1}{2})^n)}{1-\frac{1}{2}}$
$1.99= \frac{(1- (\frac{1}{2})^n)}{\frac{1}{2}}$
$1.99= 2(1- (\frac{1}{2})^n)$
divide both sides by 2
$\frac{1.99}{2} = 1- (\frac{1}{2})^n$
times -1
$\frac{-1.99}{2} = (\frac{1}{2})^n-1$
add 1 or 2/2 to both sides
$\frac{0.01}{2} = (\frac{1}{2})^n$
take the ln of both sides
$ln(\frac{0.01}{2}) = ln((\frac{1}{2})^n)$
$ln(\frac{0.01}{2}) = n ln(\frac{1}{2})$
divide both sides by ln(1/2)
$\frac{ln(\frac{0.01}{2})}{ln(\frac{1}{2})} =n$
use your calculatro to find that n≈7.64386
so on 7th jump, it is not yet at 1cm to the edge but at 8th jump, it is past
so 8th jump

7 0

4 years ago