MATHEMATICS HIGH SCHOOL

?×81/2=1
what does ? equal

Answers

Answer 1
Answer:

Answer:

2/81

Step-by-step explanation:

let ? be A,

A×81/2=1

A=1×2/81

A=2/81

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-3(x + 4) = (-x - 1)

What is artificial intelligence

Answers

exhibited by machines or other softwares.

It's a man made intelligence

A container holds 50 electronic components, of which 10 are defective.1. If 6 components are drawn at random from the container, the probability that at least 4 are not defective is ?
A) 0.26
B) 0.42
C) 0.75
D) 0.91
E) 1.00
2. If 8 components are drawn at random from the container, the probability that exactly 3 of them are defective is ?
A) 0.147
B) 0.203
C) 0.300
D) 0.375
E) 0.750

Answers

1.) q = P(defective) = 10/50 = 0.2
p = P(not defective) = 1 - P(defective) = 1 - 0.2 = 0.8
P(x) = nCr p^x q^(n-x)
P(x ≥ 4) = P(4) + P(5) + P(6) = 6C4 * (0.8)^4 * (0.2)^2 + 6C5 * (0.8)^5 * 0.2 + (0.8)^6 = 15 * 0.4096 * 0.04 + 6 * 0.32768 * 0.2 + 0.262144 = 0.24576 + 0.393216 + 0.262144 = 0.90112
Option D is the correct answer.

2.) p = P(defective) = 10/50 = 0.2
q = P(not defective) = 1 - P(defective) = 1 - 0.2 = 0.8
P(x) = nCr p^x q^(n-x)
P(x = 3) = 8C3 * (0.2)^3 * (0.8)^5 = 8C3 * 0.008 * 0.32768 = 56 * 0.008 * 0.32768 = 0.1468
Option A is the correct answer.

Maria and nina each ordered a small pizza. maria ate 3/8 of her pizza. Nina ate 3/6 of her pizza. Who ate more pizza?

Answers

maria ate 9/24 and nina ate 12/24 
what i did was find a number that could be multiplied by both and get the same number for the denominator the you multipy the number you did for the bottom and multiply it on the top then you should be able to figure out your answer. hope i helped!

Help me with this!!!

Answers

Answer:

3.5 would be halfway of 3 and 4.

Answer:3.5

Step-by-step explanation:

3.5 is half of 3 and 4

Which scenario best matches the linear relationship expressed in the equation y = 32x + 80?Joseph has $80 in his bank account and spends $32 each day.
Joseph has $80 in his bank account and earns $32 each day.
Joseph had $32 in his bank account and deposited another $80.
Joseph has $32 in his bank account and earns $80 each day.

Answers

Answer:

Option (2) best matches the given the linear relationship y = 32x + 80

Step-by-step explanation:

Given linear relationship as  y = 32x + 80

We have to find the best match from the given options to the given the linear relationship.

1) Joseph has $80 in his bank account and spends $32 each day.

Let the money Joseph spend each day be $x

Since, the amount one spend gets deducted from the money one have.

So, given statement is represented as y = 80 - 32x .

2) Joseph has $80 in his bank account and earns $32 each day.

Let the money Joseph earns each day be $x

Since, the amount one earns gets added to the money one have.

So, given statement is represented as y = 80 + 32x .

3) Joseph had $32 in his bank account and deposited another $80.

Since, he is depositing money in account so it gets add up

So, given statement is represented as  y = 32 + 80 = 112

4) Joseph has $32 in his bank account and earns $80 each day.

Let the money Joseph earns each day be $x

Since, the amount one earns gets added to the money one have.

So, given statement is represented as y = 32 + 80x .

Out of all four option, option (2) best matches the given the linear relationship y = 32x + 80

he has 80 in the bank account and earns 32 each day....where x represents the number of days and y represents the total in the account

The polynomial 32x^2+12x-57 has two real roots.A. True
B. False The polynomial 32x^2+12x-57 has two real roots.

A. True
B. False

Answers

It is an absolutely true statement that the polynomial 32x^2+12x-57 has two real roots. The correct option among all the options that are given in the question is the first option or option "A". I hope that this is the answer that you were looking for and the answer has actually come to your great help.

Answer:

On the test it says it is false!!

Step-by-step explanation:
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