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Alex
3 years ago
13

What is the slope of line t?

Mathematics
1 answer:
tensa zangetsu [6.8K]3 years ago
5 0

Answer:

Line t is perpendicular to line s. Therefore, it is a HORIZONTAL line with slope zer0. ALL horizontal lines have slope of zer0. Since line t passes through (-2,1), it's equation is y=1.

Step-by-step explanation:

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The lifetime of a leaf blower is exponentially distributed with a mean of 5 years. If you buy a 12 year old leaf blower, what is
snow_tiger [21]

Answer:

1.967 × 10⁻¹¹

Step-by-step explanation:

This is a conditional probability problem

Probability that a 12 year old leaf blower works for 5 more years = Probabilty that a leaf blower works for 17 years, given that it has worked for 12 years = P(17|12)

P(17|12) = P(17 n 12)/P(12)

P(17 n 12) = P(17)

Exponential random variable is given as

f(x) = λ e^(-λ.x)

λ = rate parameter = 5 years per blower

x = variable whose probability is required = 17

f(17) = 17 e^(-5×17)

f(17) = 17 e⁻⁸⁵ = 2.067 × 10⁻³⁶

f(12) = 12 e^(-5×12)

f(12) = 12 e⁻⁶⁰ = 1.051 × 10⁻²⁵

P(17|12) = (2.067 × 10⁻³⁶)/(1.051 × 10⁻²⁵)

P(17|12) = 1.967 × 10⁻¹¹

8 0
3 years ago
(3x+16) ( 5x-54) find the value of the x
devlian [24]

Answer:

15x^2 -82x-864

Step-by-step explanation:

MUse foil method

5 0
3 years ago
HEELP I'll give brainliest ​
andrey2020 [161]

Answer:

28.3

Step-by-step explanation:

12/20 = 17/x

cross multiply

12x=340

divide each side by 12

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round it to nearest tenth

28.3

7 0
3 years ago
Whats is -24 plus positive 8
Alina [70]
The answer is -24+8= -16
7 0
3 years ago
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ABCD is a parallelogram. If AB =3x+4, and CD =4x-1, find the length of AB
RSB [31]
If AB = CD, then 3x+4 is equal to 4x-1

3x + 4 = 4x - 1
Add one to both sides to cancel out.
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Subtract 3x from both sides to cancel out.
5 = x

Now, substitute the 5 in place of the x in the equation for AB (3x+4)

3(5) + 4
15 + 4
19

Final Answer: B) 19
7 0
3 years ago
Read 2 more answers
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