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amid [387]
3 years ago
15

A bag contains 10 marbles: 2 are green, 2 are red, and 6 are blue. Yolanda chooses a marble at random, and without putting it ba

ck, choose another one at random. What is the probability that both marbles she chooses are green? Write your answer as fraction in simplest form.
Mathematics
1 answer:
aliya0001 [1]3 years ago
7 0

Answer:

2/10 = 1/5

Step-by-step explanation:

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I guess we only need to add 2 hours and 38 minutes to the depart times to get arrival, and deduct 2 hours and 38 minutes from arrival to get departure.

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4 0
3 years ago
Is 4x+2y=20 and y= -2 + 10 equavilent?
Sergio039 [100]

Answer:

yes, they are equivalent

Step-by-step explanation:

solve the first equation for 'y' by subtracting 4x from each side, then dividing each side by 2

2y = -4x + 20

y = -2x + 10

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3 years ago
At a quick-lunch counter, 3 pretzels and 1 soda cost
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Step-by-step explanation:

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8 0
2 years ago
Read 2 more answers
If f(x) = x² – 5, evaluate: f(x+h)-f(x)/<br> h
Likurg_2 [28]

The first derivative of the function f(x) = x² - 5 is equal to f'(x) = 2 · x.

<h3>How to find the derivative of a quadratic equation by definition of derivative</h3>

In this question we have a quadratic function, in which we must make use of the definition of derivative to find the expression of its first derivative. Then, the procedure is shown below:

f(x) = x² - 5                                         Given

f' = [(x + h)² - 5 - x² + 5] / h                Definition of derivative

(x² + 2 · x · h + h² - 5 - x² + 5) / h       Perfect square trinomial

(2 · x · h + h²) / h                                Associative, commutative and modulative properties / Existence of additive inverse

2 · x + h                                              Distributive, commutative and associative properties / Definition of division / Existence of multiplicative inverse

2 · x                                                     h = 0 / Result

The first derivative of the function f(x) = x² - 5 is equal to f'(x) = 2 · x.

To learn more on derivatives: brainly.com/question/25324584

#SPJ1

6 0
2 years ago
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