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3 years ago

HELPPP PLEASE I NEED TO PASSA

Mathematics

1 answer:

Alex787 [66]3 years ago

6 0

Calculate circumference:

$2(5)\pi = 10\pi$
use a proportion to figure out radians:

$\frac{12}{10\pi} = \frac{x}{2\pi} \\ \\ \frac{24\pi}{10\pi} = x \\ \\ x = 2.4$

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Somebody please help me on this.

LiRa [457]

No of outcomes =8
P(odd)=1/2
P (<6)=5/8
Required probability of P(odd) and P (<6) = 1/2*5/8=5/16

6 0

2 years ago

What about this one

kirill [66]

Answer:

3/20

Step-by-step explanation:

6 0

3 years ago

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Need answers for a b and c, please help

rewona [7]

B is F and C is to the right 2 and down 3

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3 years ago

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Match each complex number with its equivalent expression i^157 i^315 i^102 i^76

ryzh [129]

Answers:

$i^{157} = i\\\\i^{315} = -i\\\\i^{102} = -1\\\\i^{76} = 1\\\\$

=====================================================

Explanation:

By definition, $i = \sqrt{-1}$

Squaring both sides gets us $i^2 = -1$

Then multiply both sides by i to get $i^3 = -i$

Repeat the last step and you should get $i^4 = -i^2 = -(-1) = 1$

---------------

Notice we have this pattern going on:

$i^0 = 1\\\\i^1 = i\\\\i^2 = -1\\\\i^3 = -i\\\\i^4 = 1\\\\$

Once we reach i^4, we start the process over again.

It repeats every 4 terms.

This means we'll divide the exponent over 4 and look at the remainder. We ignore the quotient completely.

157/4 = 39 remainder 1

That remainder 1 is the exponent of the simplified term

$i^{157} = i^1 = i$

---------------

Similarly,

315/4 = 78 remainder 3

So $i^{315} = i^3 = -i$

---------------

102/4 = 25 remainder 2

$i^{102} = i^2 = -1$

----------------

76/4 = 19 remainder 0

$i^{76} = i^0 = 1$

8 0

2 years ago

Which statements are true? Check all that apply. ( the formula for the area of a triangle is A = 1/2bh.)

never [62]

The formula is correct but I do not see any of the other statements. so yes the formula is true.

5 0

4 years ago