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steposvetlana [31]
2 years ago
14

A

Mathematics
1 answer:
spayn [35]2 years ago
3 0
Udusuf situated sooaohxd sooaouxhw fiiis
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I need help ASAP help me plzzzzzz
anzhelika [568]
The answer is A because you need to find the unit rate of each cost
Since $2.80 is for 2 liters, do 2.80/2 which equals 1.4. So that’s the cost for one liter
Then, 6 half liter bottles is just 3 liters because 6*1/2= 3. Then to find the unit rate for that, do 3.90/3 which equals 1.3.
So the first option is $1.40 per liter and the second option is $1.30 per liter so the first option is more expensive- the 2-liter bottle, and the cost for that is 1.40
Hope this helps:))
4 0
3 years ago
Which binomial expressions are factors of 4x3+9x2−x−6? <br><br> Select each correct answer.
lapo4ka [179]

Answer:

It is (x+ 1

Step-by-step explanation:

Because -1 is  a root because    4(-1)^3  + 9(-1)^2 - (-1)  - 6  =     -4   + 9 + 1   - 6 =  -5 + 5  = 0

4 0
3 years ago
A machine has four components, A, B, C, and D, set up in such a manner that all four parts must work for the machine to work pro
olchik [2.2K]

Answer:

0.756

Step-by-step explanation:

It is given that a machine has four components, A, B, C, and D.

P(A)=P(B)=0.93, P(C)=0.95,P(D)=0.92

If these components set up in such a manner that all four parts must work for the machine to work properly.

We need to find the probability that the machine works properly. It means we have to find the value of P(A\cap B\cap C\cap D).

If two events X and Y are independent, then

P(X\cap Y)=P(X)\times P(Y)

Assume the probability of one part working does not depend on the functionality of any of the other parts.

P(A\cap B\cap C\cap D)=P(A)\times P(B)\times P(C)\times P(D)

Substitute the given values.

P(A\cap B\cap C\cap D)=0.93\times 0.93\times 0.95\times 0.92

P(A\cap B\cap C\cap D)=0.7559226

P(A\cap B\cap C\cap D)\approx 0.756

Therefore, the probability that the machine works properly is 0.756.

7 0
3 years ago
10 Problem-solving A class of 27 students is split between boys and girls
Troyanec [42]

Answer:

15:27

Step-by-step explanation:

27 kids in the class and 15 boys

5 0
3 years ago
Which expression is equivalent to 5x - 5x + 3x - 3x?
prohojiy [21]

Answer:

5x

Step-by-step explanation:


3 0
3 years ago
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