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3 years ago

WITHIN THE NEXT 5 MIN I WILL GIVE U BRAINIEST

Mathematics

1 answer:

ivann1987 [24]3 years ago

3 0

Opps, wrong answer

Deleted

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A box contains 2 green and 3 white balls. A ball is selected at random from the box. If the ball is green, a card is drawn from

Kryger [21]

Answer:

a) $\frac{47}{260}$

b) $\frac{3}{20}$

Step-by-step explanation:

a) There are two ways of getting a king; picking a green ball and then picking a king from the deck of 52 OR picking a white ball then picking a king from the pictures only deck of 16

$P(king) = \frac{2}{5} *\frac{4}{52} +\frac{3}{5} *\frac{4}{16} = \frac{47}{260}$

b) $P(white ball, given king)= \frac{3}{5}*\frac{4}{16} =\frac{3}{20}$

8 0

3 years ago

Fernando and Maria are at opposite sides of a park. They plan to meet later at a fountain that is located somewhere between them

kompoz [17]

Answer:

Step-by-step explanation:

3 0

3 years ago

Solve the equation by using the Square Root Property. 16x2 + 16x + 4 = 81

Maslowich

Answer:

$x = \dfrac{7}{4}, x = \dfrac{-11}{4}$

Step-by-step explanation:

We are given the following equation in the question:

$16x^2 + 16x + 4 = 81$

We have to find the solution of the equation using square root property.

We can solve the equation as:

$16x^2 + 16x + 4 = 81\\(4x)^2 + 2(4x)(2) + (2)^2 = 81\\\text{Identity: }(a+b)^2 = a^2 + b^2 + 2ab\\\Rightarrow (4x+2)^2 = 81\\ \Rightarrow (4x+2) = \sqrt{81}\\ \Rightarrow (4x+2) = \pm 9\\ \Rightarrow (4x+2) = 9, (4x+2) = -9\\\Rightarrow 4x = 7, 4x = -11\\\Rightarrow x = \dfrac{7}{4}, x = \dfrac{-11}{4}$

is the required solution of the equation.

6 0

3 years ago

Eight burgers and three orders of fries cost $79.49. Six orders of fries and twelve burgers cost $125.82.Find the price of one b

dezoksy [38]

Answer:

Burgers - $8.29 and fries - $4.39

Step-by-step explanation:

Let burgers - b, fries - f

8b + 3f = 79.49
12b + 6f = 125.82

Double the first equation and subtract the second equation:

16b + 6f - 12b - 6f = 2(79.49) - 125.82
4b = 33.16
b = 33.16/4
b = 8.29

Find f:

8(8.29) + 3f = 79.49
3f = 79.49 - 66.32
3f = 13.17
f = 13.17/3
f = 4.39

5 0

3 years ago

Are rational numbers a subset of real numbers?

valentinak56 [21]

Answer: Yep! This is true.

Explanation: Real number subsets also include irrational numbers, whole numbers, integers, and natural numbers.

7 0

3 years ago

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