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shutvik [7]
3 years ago
11

The equation of line CD is y = −2x − 2. Write an equation of a line parallel to line CD in slope-intercept form that contains po

int (4, 5).
Mathematics
2 answers:
Inga [223]3 years ago
5 0
We are told to write the equation of a line that is parallel to CD. The question gives us the equation for line CD, which is y = -2x - 2 and that the parallel line needs to go through the point (4,5). To start off, we need to find the slope of the line CD, which is y = -2x - 2, or -2. For a line to be parallel to another line, the slope must remain the same. 

Next, we use the point-slope formula to find the parallel line's equation. The point-slope form is y - y₁ = m(x - x₁). We plug in -2 for m, 4 for x₁ and 5 for y₁. Doing so gives us y - 5 = -2(x - 4). Now, use the distributive property to simplify. This gives us:
y - 5 = -2x + 8. 
Finally, we add 5 to both sides to get y = -2x + 13. Therefore, the equation of the line parallel to the line CD is y = -2x + 13. Hope this helped and have a phenomenal day!

musickatia [10]3 years ago
4 0
CD is y = -2x + 13 is ur answer
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Top left -4,4
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7 0
3 years ago
HELP PLS
Maru [420]
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8 0
3 years ago
Read 2 more answers
Solve for f in the proportion.<br> 28/44 = F/99 F = ?
victus00 [196]

Answer:

F = 63

Step-by-step explanation:

28/44 = F/99

28/44 x 99 = F

F = 63

5 0
3 years ago
Find the discriminant of 3x^2-10x=-2
Oksanka [162]

Answer:

76

Step-by-step explanation:

given a quadratic equation in standard form : ax² + bx + c = 0 : a ≠ 0

then the discriminant is Δ = b² - 4ac

given 3x² - 10x = - 2 ( add 2 to both sides )

3x² - 10x + 2 = 0 ← in standard form

with a = 3, b = - 10 and c = 2

b² - 4ac = (- 10)² - (4 × 3 × 2) = 100 - 24 = 76


7 0
3 years ago
let X represent the amount of time till the next student will arriv ein the library partking lot at the university. If we know t
AlekseyPX

Answer:

0.606531 = 60.6531% probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot.

Step-by-step explanation:

Exponential distribution:

The exponential probability distribution, with mean m, is described by the following equation:

f(x) = \mu e^{-\mu x}

In which \mu = \frac{1}{m} is the decay parameter.

The probability that x is lower or equal to a is given by:

P(X \leq x) = \int\limits^a_0 {f(x)} \, dx

Which has the following solution:

P(X \leq x) = 1 - e^{-\mu x}

The probability of finding a value higher than x is:

P(X > x) = 1 - P(X \leq x) = 1 - (1 - e^{-\mu x}) = e^{-\mu x}

Mean of 4 minutes

This means that m = 4, \mu = \frac{1}{4} = 0.25

Find the probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot:

This is:

P(2 \leq X \leq 132) = P(X \leq 132) - P(X \leq 2)

In which

P(X \leq 132) = 1 - e^{-0.25*132} = 1

P(X \leq 2) = 1 - e^{-0.25*2} = 0.393469

P(2 \leq X \leq 132) = P(X \leq 132) - P(X \leq 2) = 1 - 0.393469 = 0.606531

0.606531 = 60.6531% probability that it will take between 2 and 132 minutes for the student to arrive at the library parking lot.

4 0
3 years ago
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