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BabaBlast [244]

2 years ago

11

Nadine mixes a juice solution that is made from 3 gallons of an 80% juice solution and 1 gallon of a 20% juice solution. What is

the percent concentration of the final solution? 25% 50% 65% 70%

2 answers:

satela [25.4K]2 years ago

8 0

Answer: The answer is C: 65%.

hope this helps :)

lesya692 [45]2 years ago

7 0

C:65% Would be the answer i believe you're looking for, hope this helps!

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A compact disc is designed to last an average of 4 years with a standard deviation of 0.8 years. What is the probability that a

Varvara68 [4.7K]

To compute for the probability value of P-value, we need to see first as to how is 3 years from the given mean value. So, for this case we have (3 - 4) = 1 below the standard deviation of 0.8. Thus, the z -score for this would me z < -1/0.8 = -1.25. Given a z-score of z < -1.25. Using the table chart for the P-values, we have P(z < -1.25) = 0.1056. Meaning there is a 10.56% chance that a CD will last for less than 3 years. Thus, probability is 10.56%<span>.</span>

6 0

2 years ago

Evaluate the triple integral ∭Tx2dV, where T is the solid tetrahedron with vertices (0,0,0), (3,0,0), (0,3,0), and (0,0,3).

bixtya [17]

Answer:

the integral I=81

Step-by-step explanation:

for the integral I

$I=\int\limits^{}_{}\int\limits^{}_{}\int\limits^{}_{T} {x^{2} } \, dxdydz$

where T is the solid tetrahedron , then

$I=\int\limits^{3}_{0}\int\limits^{3}_{0}\int\limits^{3}_{0} {x^{2} } \, dxdydz = \int\limits^{3}_{0}dz\int\limits^{3}_{0}dy\int\limits^{3}_{0} {x^{2} } \, dx = (3-0)*(3-0)*1/3*(3^{3}-0^{3}) = 3^{4} = 81$

the integral is equal to 81

8 0

2 years ago

At a carnival, an individual can win a prize by choosing a rubber duck from a pond with "Win" written on the underside of the du

boyakko [2]

Step-by-step explanation:

The probability of success = 8/(8 + 17) = 8/25 = 0.32.

Let X be the random variable denoting the number of successes (number of times the individual won a prize) in four picks.

Hence, X ~ Bin(4, 0.32).

Thus, P(X = 1) = $4C_1=(0.32)(1-0.68)^{4-1}=4C_1(0.32)(0.68)^3$

3 0

2 years ago

Choose the three shapes that have an area of 36 square centimeters.

Kay [80]

Answer:

6cm

Step-by-step explanation:

Area of a square =

$s^2$

Where s = one side

s = ?

$A = s^2\\\\36 =s^2$

Square root both sides

$\sqrt{36} = \sqrt{s^2} \\\\6 =s$

5 0

1 year ago

What is the sum of 14 and the opposite of 12

frozen [14]

I'm assuming that by "opposite of 12", it means -12

If so, the answer would be 2

5 0

2 years ago