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Viefleur [7K]
3 years ago
9

6x +4y = 42 3x +4y = -6

Mathematics
2 answers:
Evgen [1.6K]3 years ago
8 0

Answer:

kayo na....

Step-by-step explanation:

magjowa kau..

Gelneren [198K]3 years ago
7 0

Answer:

Solving the system of equation:

x=16

y=-\frac{27}{2}

Step-by-step explanation:

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Water drips from a faucet at a rate of 41 drops/minute. Assuming there are 15,000 drops in a gallon, how many minutes would it t
ELEN [110]

Answer:

366 minutes

Step-by-step explanation:

divide 15000 by 41

5 0
3 years ago
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Let X denote the distance (m) that an animal moves from its birth site to the first territorial vacancy it encounters. Suppose t
andrezito [222]

Answer and Step-by-step explanation: For an exponential distribution, the probability distribution function is:

f(x) = λ.e^{-\lambda.x}

and the cumulative distribution function, which describes the probability distribution of a random variable X, is:

F(x) = 1 - e^{-\lambda.x}

(a) <u>Probability</u> of distance at most <u>100m</u>, with λ = 0.0143:

F(100) = 1 - e^{-0.0143.100}

F(100) = 0.76

<u>Probability</u> of distance at most <u>200</u>:

F(200) = 1 - e^{-0.0143.200}

F(200) = 0.94

<u>Probability</u> of distance between <u>100 and 200</u>:

F(100≤X≤200) = F(200) - F(100)

F(100≤X≤200) = 0.94 - 0.76

F(100≤X≤200) = 0.18

(b) The mean, E(X), of a probability distribution is calculated by:

E(X) = \frac{1}{\lambda}

E(X) = \frac{1}{0.0143}

E(X) = 69.93

The standard deviation is the square root of variance,V(X), which is calculated by:

σ = \sqrt{\frac{1}{\lambda^{2}} }

σ = \sqrt{\frac{1}{0.0143^{2}} }

σ = 69.93

<u>Distance exceeds the mean distance by more than 2σ</u>:

P(X > 69.93+2.69.93) = P(X > 209.79)

P(X > 209.79) = 1 - P(X≤209.79)

P(X > 209.79) = 1 - F(209.79)

P(X > 209.79) = 1 - (1 - e^{-0.0143*209.79})

P(X > 209.79) = 0.0503

(c) Median is a point that divides the value in half. For a probability distribution:

P(X≤m) = 0.5

\int\limits^m_0 f({x}) \, dx = 0.5

\int\limits^m_0 {\lambda.e^{-\lambda.x}} \, dx = 0.5

\lambda.\frac{e^{-\lambda.x}}{-\lambda} = -e^{-\lambda.x} + e^{0}

1 - e^{-\lambda.m} = 0.5

-e^{-\lambda.m} = - 0.5

ln(e^{-0.0143.m}) = ln(0.5)

-0.0143.m = - 0.0693

m = 48.46

6 0
3 years ago
What is (-8)+11x[-2-(-4)=?
Goryan [66]
<span><span>−8</span>+<span><span>11x[</span><span><span><span>−2</span>−<span>(<span>−4</span>)]</span></span></span></span></span><span>=<span><span>−8</span>+<span>22<span>x
</span></span></span></span>=<span><span>22x</span>−<span>8
</span></span>
Hope I helped, and if I did, than feel free to vote brainliest
7 0
3 years ago
2. Find the exact area of a circle with a diameter of 5 yards. Use 3.14 for T. (1 point)
NemiM [27]

Answer:

Step-by-step explanation:

radius r = diameter/2 = 2.5 yards

area = πr² = 6.25π square yards ≅ 19.625 square yards

6 0
3 years ago
A cleaning croquet came kids clean five offices in six hours how many offices can they clean in 12 hours
Margarita [4]

Answer:

Since they can clean 5 offices in six hours. The double the time the double the offices. So they can clean 10 offices in 12 hours.

4 0
3 years ago
Read 2 more answers
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