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3 years ago

What is x in this problem 8-(-4)^2-5=x

Mathematics

2 answers:

andreev551 [17]3 years ago

8 0

Answer:

-13

Step-by-step explanation:

This is just a matter of simplifying.

x = 8-(-4)^2-5

Let's get rid of the exponent.

x = 8 - 16 - 5

x = -13

You can check if this is correct.

The tricky part is the -(-4)^2.

You have to solve the -4^2 first, instead of the parenthesis.

hichkok12 [17]3 years ago

6 0

Answer:

X=-12

Step-by-step explanation:

9-16-5=X

-12=X

X=-12

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You have two biased coins. Coin A comes up heads with probability 0.1. Coin B comes up heads with probability 0.6.However, you a

Andrews [41]

Answer:

The probability that our guess is correct = 0.857.

Step-by-step explanation:

The given question is based on A Conditional Probability with Biased Coins.

Given data:

P(Head | A) = 0.1

P(Head | B) = 0.6

By using Bayes' theorem:

$P(B|Head) = P(Head|B) \times \frac{P(B)}{P(Head)}$

We know that P(B) = 0.5 = P(A), because coins A and B are equally likely to be picked.

Now,

P(Head) = P(A) × P(head | A) + P(B) × P(Head | B)

By putting the value, we get

P(Head) = 0.5 × 0.1 + 0.5 × 0.6

P(Head) = 0.35

Now put this value in $P(B|Head) = P(Head|B) \times \frac{P(B)}{P(Head)}$ , we get

$P(B|Head) = P(Head|B) \times \frac{P(B)}{P(Head)}$

$P(B|Head) = 0.6 \times \frac{0.5}{0.35}$

$P(B|Head) = 0.857$

Similarly.

$P(A|Head) = 0.857$

Hence, the probability that our guess is correct = 0.857.

7 0

3 years ago

Help me plsssssssssssssssss

asambeis [7]

Answer:

I would say 1.5in

Step-by-step explanation:

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3 years ago

Ben is 3 times as old as Daniel and is also 4 years older than Daniel. How old is Daniel?

Georgia [21]

B=3d and b=d+4

Since b=b we can say:

3d=d+4 subtract d from both sides

2d=4 divide both sides by 2

d=2

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3 years ago

Simplify 6(-5). -30 -11 1 30

Pavel [41]

If you would like to simplify 6 * (-5), you can do this using the following steps:

6 * (-5) = - (6 * 5) = - 30

The correct result would be - 30.

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Zina [86]

Answer:

Step-by-step explanation:

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