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erastova [34]
3 years ago
10

Find two square roots of 400

Mathematics
2 answers:
Maru [420]3 years ago
7 0

Answer:

20

Step-by-step explanation:

when you put 400 under the square root we will get 20

nexus9112 [7]3 years ago
4 0

The square root of 400 is 20. Please give me brainliest

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3 years ago
There is a 70% chance that your car will get stuck in the snow during the next big snow fall. Given that you are already stuck i
nikdorinn [45]

Answer:

63%

Step-by-step explanation:

This is a problem of conditional probability.

The two events that are given are:

  • Car stuck in the snow - Let it be event S. P(S) = 70% = 0.70
  • Require a tow truck - Let it be event T.

We have to find the probability of being stuck in the snow AND requiring a tow truck which can be given as P(S and T)

We are also given the conditional probability, which is P(T | S) = 90% = 0.90

Using the given formula for our case we can modify the formula as:

P(T|S)=\frac{P(S \cap T)}{P(S)}

0.90=\frac{P(S \cap T)}{0.70}\\\\ P(S \cap T)=0.90 \times 0.70\\\\ P(S \cap T)=0.63

Therefore, there is 63% (0.63) chance that you will get stuck in the snow with your car AND require a tow truck to pull you out

4 0
3 years ago
1) Find the value of 7x + 3y when x = 12 and<br>y = - 6.​
dezoksy [38]

Answer:

66

Step-by-step explanation:

7(12)+3(-6)

84-18=66

7 0
3 years ago
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