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Shtirlitz [24]
3 years ago
10

What is the probability of getting tails on two coins only (there are 3 coins by the way)

Mathematics
1 answer:
Dmitrij [34]3 years ago
3 0

Answer:

1/2

please mark me brainliest

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Twenty-five percent of the animals at the farm are cows. There are 78 cows. How many animals live at the farm?
Iteru [2.4K]

Answer:

312

Step-by-step explanation:

6 0
3 years ago
Timothy has a fenced-in garden in the shape of a rhombus. The length of the longer diagonal is 24 feet, and the length of the sh
Marta_Voda [28]

From the Pythagorean Theorem:

side^2 = (.5 * 24)^2 + (.5 * 18)^2

side^2 = 144 + 81

side = sq root (225)

rhombus side = 15 feet


Source

1728.com/quadrhom.htm



3 0
3 years ago
What's the difference between 1261⁄4 and 78 2⁄3?
drek231 [11]
<span>So we want to know the difference between a= 126 1/4 and b= 78 2/3. Lets turn them into a fraction: a = 124*4 + 1/4 = 496/4 + 1/4 = 495/4. b= 78*3 + 2/3 = 234/3 + 2/3 = 236/3. Now we find the common denominator of a and b: and that is 12. so lets multiply a by 3/3 and b by 4/4: (495/4)*(3/3)=1485/12. (236/3)*(4/4)=944/12. Now the difference is: 1485/12 - 944/12=541/12 and that is: 45 1/12 </span>
5 0
3 years ago
The weights of adobe bricks used for construction are normally distributed with a mean of 3 pounds and a standard deviation of 0
dedylja [7]

Answer:  a) 0.8413, b) 0.9987.

Step-by-step explanation:

Since we have given that

Mean = 3 pounds

Standard deviation = 0.25 pounds

n = 28 bricks

So, (a) What is the probability that all the bricks in the sample exceed 2.75 pounds?

P(X>2.75)\\\\=P(z>\dfrac{2.75-3}{0.25}\\\\=P(z>\dfrac{-0.25}{0.25})\\\\=P(z>-1)\\\\=0.8413

b) What is the probability that the heaviest brick in the sample exceeds 3.75 pounds?

P(X>3.75)\\\\=P(z>\dfrac{3.75-3}{0.25})\\\\=P(z>\dfrac{0.75}{0.25})\\\\=P(z>3)\\\\=0.9987

Hence, a) 0.8413, b) 0.9987.

4 0
3 years ago
Write the point-slope form of an equation of the line through the points (-1, 4) and (-2, 2).
kozerog [31]

Answer:

Point-slope form: y-4=2(x+1)

Slope intercept form: y=2x+6

I hope this helps!

5 0
3 years ago
Read 2 more answers
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