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3 years ago

13

A spinner numbered 1 to 6 is spun twice . what is the probability of getting a 3 on the first spin and an odd number on the seco

nd spin ?

1 answer:

ANTONII [103]3 years ago

8 0

the correct answer is 1 out of 12

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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

Construct an inscribed circle in triangle PQR by finding the incenter of the triangle.

kotegsom [21]

Answer:

Step-by-step explanation:

To inscribe a circle in a given triangle PQR means to construct a circle in the triangle PQR. The incenter of a triangle is the midpoint in the triangle, which can be located by bisecting the three angles of the triangle individually.

The construction is shown in the attachment.

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4 years ago

Can someone help me please ?

cricket20 [7]

I hope this helps you

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3 years ago

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See the attachment below!!

olasank [31]

Answer:

Step-by-step explanation:

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3 years ago

10) Solve the equation.<br> - 3(2x + 6) + 81 = 34 - 43

Maslowich

Answer:

x = 8

Step-by-step explanation:

-6x + 63 = -9

-6x = -72

x = 8

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4 years ago

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