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Sunny_sXe [5.5K]

3 years ago

13

Will give brainliest. A farmer is painting a new barn. He will need to calculate the surface area of the barn to purchase the co

rrect amount of paint. In which of the following units can the farmer expect to calculate the surface area? yd2 yd m3 m

1 answer:

Maslowich3 years ago

6 0

Answer:

yd^2

Step-by-step explanation:

I took the test :)

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I am thinking of a number.if you multiply my number by 4,add 4 to the product ,and then take 1/3 of the sum, the result is 6. fi

NeTakaya

6=((X*4)+4)/3

18=(X*4)+4

14=4X

7/2=X <— Answer

4 0

3 years ago

Rhett is solving the quadratic equation zero equals X2 minus 2X -3 using the quadratic formula which shows the correct substitut

Alina [70]

X^2-2x -3 =0
a =1 b =-2 and c = -3

x = - (-2) +/- sqrt (-2)^2 - 4(1)(-3)
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2(1)

x = + 2 +/- sqrt [(4) - 4(-3)]
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x = +2 +/- sqrt [4 + 12]
--------------------------
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x = +2 +/- sqrt[16]
-------------------
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8 0

3 years ago

A research team at Cornell University conducted a study showing that approximately 10% of all businessmen who wear ties wear the

LenKa [72]

Answer:

a) The probability that at least 5 ties are too tight is P=0.0432.

b) The probability that at most 12 ties are too tight is P=1.

Step-by-step explanation:

In this problem, we could represent the proabilities of this events with the Binomial distirbution, with parameter p=0.1 and sample size n=20.

a) We can express the probability that at least 5 ties are too tight as:

$P(x\geq5)=1-\sum\limits^4_{k=0} {\frac{n!}{k!(n-k)!} p^k(1-p)^{n-k}}\\\\P(x\geq5)=1-(0.1216+0.2702+0.2852+0.1901+0.0898)\\\\P(x\geq5)=1-0.9568=0.0432$

The probability that at least 5 ties are too tight is P=0.0432.

a) We can express the probability that at most 12 ties are too tight as:

$P(x\leq 12)=\sum\limits^{12}_{k=0} {\frac{n!}{k!(n-k)!} p^k(1-p)^{n-k}}\\\\P(x\leq 12)=0.1216+0.2702+0.2852+0.1901+0.0898+0.0319+0.0089+0.0020+0.0004+0.0001+0.0000+0.0000+0.0000\\\\P(x\leq 12)=1$

The probability that at most 12 ties are too tight is P=1.

5 0

3 years ago

Solve for c C^2-25-11

olya-2409 [2.1K]

C3-36

the 3 is “c3” is an exponent btw!

4 0

3 years ago

Tell me what i did wrong.

ser-zykov [4K]

Answer:

You forgot to post your mistake.

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers