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Lapatulllka [165]
2 years ago
9

Could I have a step by step

Mathematics
1 answer:
antiseptic1488 [7]2 years ago
7 0

Answer:

The first option is correct.

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Please help me I suck at math!​
lisov135 [29]

Answer:

<em>0.000008</em>

Step-by-step explanation:

Since the exponent of the scientific notation is negative, move the decimal point  6  places to the left.

<em>0.000008</em>

<em>brainliest pls</em>

8 0
3 years ago
Read 2 more answers
I need some help on this thx!
Zielflug [23.3K]

Answer:

okay so each cookie costs 1.15 and the equation is (2.80 divided by 7) + 0.75 = c

Step-by-step explanation:

Hope that helps:)

7 0
2 years ago
There are 2.54 cm in 1 inch.
irina [24]
If 2 1/2 centimeters make 1 inch, do 12 x 2 1/2, you should get 30 centimeters
5 0
3 years ago
A number is selected, at random, from the set {1,2,3,4,5,6,7,8}.
Olegator [25]

Applying the formula, you have:

A = the number is prime

B = the number is odd

I assume that with "random" you imply that all numbers can be chosen with the same probability. So, we have

P(A) = \dfrac{4}{8} = \dfrac{1}{2}

because 4 out of 8 numbers are prime: 2, 3, 5 and 7.

Similarly, we have

P(B) = \dfrac{4}{8} = \dfrac{1}{2}

because 4 out of 8 numbers are odd: 1, 3, 5 and 7.

Finally,

P(A \land B) = \dfrac{3}{8}

because 3 out of 8 numbers are prime and odd: 3, 5 and 7.

So, applying the formula, we have

P(\text{prime } | \text{ odd}) = \dfrac{P(\text{prime and odd})}{P(\text{odd})} = \dfrac{\frac{3}{8}}{\frac{1}{2}} = \dfrac{3}{8}\cdot 2 = \dfrac{3}{4}

Note:

I think that it is important to have a clear understanding of what's happening from a conceptual point of you: conditional probability simply changes the space you're working with: you are not asking "what is the probability that a random number, taken from 1 to 8, is prime?"

Rather, you are adding a bit of information, because you are asking "what is the probability that a random number, taken from 1 to 8, is prime, knowing that it's odd?"

So, we're not working anymore with the space {1,2,3,4,5,6,7,8}, but rather with {1,3,5,7} (we already know that our number is odd).

Out of these 4 odd numbers, 3 are primes. This is why the probability of picking a prime number among the odd numbers in {1,2,3,4,5,6,7,8} is 3/4: they are literally 3 out of 4.

5 0
3 years ago
Y = 4x <br> y = x^4<br><br> solve without graphing
jasenka [17]
The answers to the questions

4 0
2 years ago
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