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3 years ago

What's the first answer

Mathematics

1 answer:

andriy [413]3 years ago

4 0

5) -3 |. 6) 2 7) -6. |. 8) -18 9) 5. |. 10) 19 11) 14. |. 12) 42 13) 38. |. 14) 0

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Given f (x) = (x - 2) (3x² + 1) (2 – 3)?<br><br> Anyone help me please

olchik [2.2K]

Answer:

Step-by-step explanation:

hope it helps :)

have a nice day or night

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3 years ago

A bag contain 5 red marbles,4 green marbles and 1 blue marble. A marble is chosen at random from the bag and not replaced; then

jarptica [38.1K]

Answer:

$\frac{2}{15}$

Step-by-step explanation:

GIVEN: A bag contain $5$ red marbles, $4$ green marbles and $1$ blue marble. A marble is chosen at random from the bag and not replaced, then a second marble is chose.

TO FIND: What is the probability both marbles are green.

SOLUTION:

Total marbles in bag $=10$

total number of green marbles $=4$

Probability that first marble will be green $P(A)=\frac{\text{total green marbles}}{\text{total marbles}}$

$=\frac{4}{10}=\frac{2}{5}$

Probability that second marble will be green $P(B)=\frac{\text{total green marble in bag}}{\text{total marble in bag}}$

$\frac{3}{9}=\frac{1}{3}$

As both events are disjoint

probability both marbles are green $=P(A)\times P(B)$

$=\frac{2}{5}\times\frac{1}{3}=\frac{2}{15}$

Hence the probability both marbles are green is $\frac{2}{15}$

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3 years ago

What is the line of symmetry for the parabola whose equation is y = -x2 + x + 3?

iVinArrow [24]

Alright so if I do remember my math correctly, this is how it goes:

- y = -x^2 + x + 3

- x = -b/2a

- x = -1/2(-1)

- x = -1/-2, which = (1/2)

Not quite sure if this was correct, but if it was, hope this helps and you're welcome! :)

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3 years ago

Read 2 more answers

I need help plz and I have to show work

bija089 [108]

This is a very simple and easy problem. I'm not sure why you need someone else to solve it, but I hope this helps

a. Linear equation:

Let x be amount of movies rented

$8 + ($2.50 * x)

$8 + ($2.50 * 10)

= $8 + $25.0

= $33

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3 years ago

Please help! I’ll mark brainliest

Usimov [2.4K]

Answer: 19 ≥ 3z + 1 ≥ - 5

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3 years ago