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3 years ago

Please answer right away

Mathematics

1 answer:

Delicious77 [7]3 years ago

5 0

Answer:

independent

Step-by-step explanation:

Since no one else answered, figured you wouldn't mind if I do. :-), and you didn't use any CAPS.

How those two events (even and greater than 9) relate?

independent: YES. Can one happen without the other? Certainly. You see (1,1) is an even number that is not greater than 9. Equally, you see (6,5) which is greater than 9, but is not an even number.

inclusive: No, since there's a least one case where a pair number is not greater than 9. The opposite is also true... at least 1 number > 9 that is not even.

Mutually exclusive: No, since there numbers that are even AND greater than 9 (6,4) for example.

Conditional: No. Does one need the other to happen? Absolutely not.

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4 times the difference of 4 and a number is 24

Len [333]

Answer:

Step-by-step explanation:

Let "a number" = x

4(x - 4) = 24

Isolate the x. First, divide 4 from both sides

(4(x -4))/4 = (24)/4

x - 4 = 6

Add 4 to both sides

x - 4 (+4) = 6 (+4)

x = 6 + 4

x = 10

10 is your answer for "a number"

6 0

4 years ago

The correct factorization of 12x'2 - 157x - 40: A) (3x -8)(4x - 5) B) (3x - 40)(4x + 1) C) (12x - 1)(x + 40) D) (12x - 5)(x-8)

irinina [24]

Answer:

Step-by-step explanation:

12x² - 157x - 40

Consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term

product = 12 × - 40 = - 480 and sum = - 157

The factors are + 3 and - 160

Use these factors to split the x- term

12x² + 3x - 160x - 40 ( factor the first/second and third/fourth terms

= 3x(4x + 1) - 40(4x + 1) ← factor out (4x + 1) from each term

= (4x + 1)(3x - 40) ← in factored form → B

8 0

3 years ago

If Alfie tosses the paper cup more times, what is the expected number of times that the cup will land on its side?

IRINA_888 [86]

Question:

Alfie tossed a paper cup in the air 150 times and recorded the side it landed on.

Right side up = 60 Upside down = 53 Side = 37

If Alfie tosses the paper cup 100 more times what is the expected number of times the cup will land on its side?

Answer:

The expected number of times the cup will land on its side is 25 times

Step-by-step explanation:

Given

$Right = 60$

$Upside\ down = 53$

$Side = 37$

Required

First, we calculate the probability of landing on side

$P(Side) = \frac{n(Side)}{Total}$

$P(Side) = \frac{37}{150}$

$P(Side) = 0.247$

Next, we calculate the expected value; E(x) using:

$E(x) = n * P(x)$

When tossed 100 more times:

n = 100 and P(x) = P(Side) = 0.247

So:

$E(x) = 100 * 0.247$

$E(x) = 24.7$

$E(x) = 25$ --- approximated

<em>Hence, it is expected that it will land on its side 25 times</em>

3 0

3 years ago

Help me pls and ty !

Naya [18.7K]

Answer:

$a=2.6-3.4b$

Step-by-step explanation:

So we have the equation:

$2.2a+3.4b=1.2a+2.6$

And we want to solve for a.

So, subtract 1.2a from both sides:

$(2.2a+3.4b)-1.2a=(1.2a+2.6)-1.2a\\1a+3.4b=2.6$

Now, subtract 3.4b from both sides:

$(a+3.4b)-3.4b=2.6-3.4b\\a=2.6-3.4b$

And that's our answer :)

7 0

3 years ago

Willl give brainlyist if quick its timedd

salantis [7]

Answer:

feel like its C

Step-by-step explanation:

5 0

3 years ago