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3 years ago

Please answer! Need help!

Mathematics

1 answer:

myrzilka [38]3 years ago

7 0

Answer:

I don't know the answer......

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Solve<br>2x + 5x - 11 = -46

irga5000 [103]

Answer:

Step-by-step explanation:

7x-11=-46

(7x-11)+11=-46+11

X = -5

5 0

3 years ago

HEEELLLLLPPPPPPPPPPPP!!!!!!!

Mademuasel [1]

Answer:

2x³ + 11x² + 8x - 16

Step-by-step explanation:

Multiply:

(x + 4) (2x² +3x - 4)

2x³ + 3x² - 4x + 8x² + 12x - 16

Combine like terms:

2x³ + 11x² + 8x - 16

4 0

3 years ago

A purchaser of electric relays buys from two suppliers, A and B. Supplier A supplies two of every three relays used by the compa

inessss [21]

Answer:

The probability that at most 38 of the 60 relays are from supplier A is P(X≤38)=0.3409.

Step-by-step explanation:

We can model this question with a binomial distribution random variable.

The sample size is n=60.

The probability that the relay come from supplier A is p=2/3 for any relay.

If we use a normal aproximation, we have the mean and standard deviation:

$\mu=np=60*(2/3)=40\\\\\sigma=\sqrt{npq}=\sqrt{60*(2/3)*(1/3)} =3.65$

The probability that at most 38 of the 60 relays are from supplier A is P(X≤38)=0.3409:

$P(X\leq38)=P(X$

5 0

3 years ago

A carpenter makes legs for 3-legged stools and 4-legged tables. He makes a total of 57 legs.

Viefleur [7K]

4 legged tables : x 3 legged stools : y x + y = 20 y= 20 - x 4x + 3y = 68 Replace y by 20 - x so we only have one letter 4x + 3(20 - x) =68 4x + 60 - 3x =68 x + 60 = 68 x = 8 To find y replace x by 8 y = 20 - 8 y = 12 So you have 8 four legged chairs and 12 three legged stools. Hope I helped!

6 0

3 years ago

Read 2 more answers

Please help me with this homework

andriy [413]

Answer:

wow. at this point just guess

Step-by-step explanation:

8 0

3 years ago