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aniked [119]
4 years ago
3

Which represents the solution(s) of the graphed system of equations, y = x2 - 2x and y = -2x – 1?

Mathematics
2 answers:
Arisa [49]4 years ago
5 0

Answer:

The answer is C on edge

anyanavicka [17]4 years ago
4 0

Answer:

C

Step-by-step explanation:

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Approximate square root of 5, 13, 21 and 38
Mashcka [7]

\sqrt{5}=2.23607, \sqrt{13}=3.60555, \sqrt{21}=4.58258, \sqrt{38}=6.16441

These are all approximate decimal versions of the given numbers' square roots. If you need help rounding the decimals to a certain number of digits, let me know.

I hope this helps :)

4 0
3 years ago
In a class, 7 students walk to school, two fifths ride and 32% are dropped off by their parents.
Svet_ta [14]
10 students ride the bus.
7 0
3 years ago
Suppose that X has an exponential distribution with a mean of 10. Determine the following: a. P(X < 5) b. P(X < 15 | X &gt
jeka57 [31]

Answer:

a) 0.3935

a) 0.3935

Memory less property of exponential distribution

Step-by-step explanation:

We are given that X has a exponential distribution.

Thus, it will have a  cumulative probability distribution of the form

P(X \leq x) = 1 - e^{-\lambda x}, where \frac{1}{\lambda} is the mean of distribution.

We are given  \frac{1}{\lambda} = 10

Thus,

P(X \leq x) = 1 - e^{\frac{-x}{10}}

a)P( x < 5) = 1 - e^{\frac{-5}{10}} = 0.3935

b)

P(x < 15|x > 10) = \displaystyle\frac{P(15 < x < 10)}{P(x > 10)} \\\\= \displaystyle\frac{(1 - e^{\frac{-15}{10} }) - (1 - e^{\frac{-10}{10} }) }{1 - P(x < 10)}\\\\=\displaystyle\frac{(1 - e^{\frac{-15}{10} }) - (1 - e^{\frac{-10}{10} }) }{1 - 1 + e^{\frac{-10}{10} }}\\\\= 0.3935

The, answers for a) and b) are same due to memory less property of the exponential distribution.

The future outcomes are not affected by past outcomes.

thus,

P(X \leq x) = P(x < 15|x > 10)

7 0
4 years ago
Write a quadratic function with zeroes -8 and -6.
vovangra [49]

Answer:

see below

Step-by-step explanation:

zeroes =  -6 and  -8

y = (x+8)(x+6)   expand to

y = x^2 + 14x + 48

6 0
3 years ago
Priti invests £6500 in a savings account for 5 years.
NISA [10]

Answer

Step-by-step explanation:

£143

8 0
4 years ago
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