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Tanya [424]
3 years ago
7

A bag contains 10 red balls, 5 blue balls and 7 green balls. Find the probability of selecting at random

Mathematics
2 answers:
ahrayia [7]3 years ago
7 0
(a)15/22

Total red balls/Total balls

(b)7/22

Total green balls/Total balls
Masteriza [31]3 years ago
4 0

Answer:

Probably red ball because it has higher amount

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The sum of eight times a number and fifteen is seven
asambeis [7]
8x+15=7

In the statement the phrase the sum of can tell you that it is going to be an addition problem. So 8x ( eight times a number) would be added to the 15, 8x+15. Since its an addition problem the part where it says ' ... is seven', you know that it will all equal 7. So the answer would be 8x+15=7.
3 0
3 years ago
Daniel buys a block of clay for an art project. The block is shaped like a cube with edges lengths of 10 inches. Daniel decides
Andre45 [30]

Answer:

=14.92...

14 the maximum number of spheres that Daniel can make from the chunk of clay.

.

Step-by-step explanation:

10^3=1000 in^3

1000/2=500 vol of one congruent chunk.

4/3 * pi * r^3 = vol of a sphere

500/(4/3 * pi * 2^3)

=14.92...

5 0
3 years ago
Write one sine and one cosine equation for each graph below.
pychu [463]

Answer:

Q13. y = sin(2x – π/2); y = - 2cos2x  

Q14. y = 2sin2x -1; y = -2cos(2x – π/2) -1

Step-by-step explanation:

Question 13

(A) Sine function

y = a sin[b(x - h)] + k

y = a sin(bx - bh) + k; bh = phase shift

(1) Amp = 1; a = 1

(2) The graph is symmetrical about the x-axis. k = 0.

(3) Per = π. b = 2

(4) Phase shift = π/2.  

2h =π/2

h = π/4

The equation is

y = sin[2(x – π/4)} or

y = sin(2x – π/2)

B. Cosine function

y = a cos[b(x - h)] + k

y = a cos(bx - bh) + k; bh = phase shift

(1) Amp = 1; a = 1

(2) The graph is symmetrical about the x-axis. k = 0.

(3) Per = π. b = 2

(4) Reflected across x-axis, y ⟶ -y

The equation is y = - 2cos2x  

Question 14

(A) Sine function

(1) Amp = 2; a = 2

(2) Shifted down 1; k = -1

(3) Per = π; b = 2

(4) Phase shift = 0; h = 0

The equation is y = 2sin2x -1

(B) Cosine function

a = 2, b = -1; b = 2

Phase shift = π/2; h = π/4

The equation is

y = -2cos[2(x – π/4)] – 1 or

y = -2cos(2x – π/2) - 1

6 0
3 years ago
An egg farm packages 264 total cartons of eggs each month.The farm has three different sizes of cartons.The small carton holds 8
Masja [62]

I don't know.. can you please explain it?

3 0
3 years ago
Answer Choices : (A) 1/6 (B)5/36 (C) 1/2 (D) 1/36
Sati [7]

Answer:

Probability = \frac{1}{6}

Step-by-step explanation:

Given

The above table

Required

Determine the probability of a sum that is a multiple of 6

Represent the event that an outcome is a multiple of 6 with M.

List out all possible values of M

M = \{6,6,6,6,6,12\}

Number of M is

n(M) = 6

Total possible outcome is:

n(Total) = 36

The theoretical probability is then calculated as follows:

Probability = \frac{Number\ of\ desired\ outcomes}{Number\ of\ possible\ outcomes}

In this case, it is:

Probability = \frac{n(M)}{n(Total)}

Probability = \frac{6}{36}

Simplify fraction

Probability = \frac{1}{6}

3 0
3 years ago
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