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wolverine [178]
3 years ago
10

Which triangle is a 30°-60°-90° triangle?

Mathematics
1 answer:
Bess [88]3 years ago
4 0

Answer:

the first one

Step-by-step explanation:

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The population of Chicago, Illinois, in 2003 was 2,869,121. The area of Chicago was 227.1 square miles. What was the average num
ValentinkaMS [17]

Answer:

12,633.7

Step-by-step explanation:

population of Chicago, in 2003 = 2,869,121

The area of Chicago = 227.1 square miles.

What was the average number of people living in 1 square mile?

Average number of people living in 1 square mile also refers to the population density of Chicago

Average number of people living in 1 square mile = Total population / total square miles

= 2,869,121 / 227.1

= 12633.734037868

Approximately

12,633.7

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3 years ago
(Pleave give the CORRECT answer, I will give out brainliest to this correct answer. Don't make up something to get brainliest be
Alex17521 [72]

Answer:

Size 50

Step-by-step explanation:

You should choose the larger sample size.  This is because if you take the mean, it will help to cancel out outliers.  For instance, most people exercise half an hour.  With sample size of 10, there might be one person who doesn't exercise, thus dragging down the mean.  A larger sample size would have a greater ratio of "average" people.

3 0
3 years ago
A solid right pyramid has a square base with an edge length of x cm and a height of y cm. Which expression represents the volume
solniwko [45]

Answer:

Thus, volume of pyramid = \frac{1}{3}x^2y cm³

Step-by-step explanation:

Given: A solid right pyramid has a square base with an edge length of x cm and a height of y cm.

We have to choose from the given options an expression for the volume of the pyramid.

Volume of pyramid = \frac{1}{3}\times Area\ of\ base \times height

Since base is a square with edge length x cm.

Area of square = (side)² = x²

Thus, volume of pyramid = \frac{1}{3}x^2y cm³


3 0
3 years ago
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What is the value of x in the equation 8+x=3?<br> -5<br> 5<br> 11<br> 24
nadya68 [22]
The answer is:
x = -5
4 0
3 years ago
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Solve the folliwing equations.<br>9+4x=-15​
Sophie [7]

Answer:

9 + 4x =  - 5 \\ 4x =  - 5 - 9 \\ 4x =  - 14 \\ x =   \frac{ - 14}{4} \\ x =   \frac{7}{4}  \\ x = 1.75

Step-by-step explanation:

please mark me brainliest

5 0
2 years ago
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