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fomenos
2 years ago
14

The equation h(x) = -3x^2 +75 models the height of an acorn as it falls from a tree 75 feet above the ground after each second,

x. After how many seconds does it hit the ground?
Mathematics
1 answer:
OleMash [197]2 years ago
5 0

Answer:

this is lots of words that my brain can't understand :/

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The sum of triple a number and 12.
Burka [1]

Answer:

3x+12

Step-by-step explanation:

Triple is 3 times a number which we will call “x” and sonce it is the sum, it is addition :)

7 0
3 years ago
Is .07 greater than .007?
Andru [333]
0.007 is smaller than 0.07
8 0
3 years ago
How is sample related to a population?
allochka39001 [22]

Answer:

A "sample" from a population is a small group of poeple chosen, such as 200 people is a sample of people chosen from a total of 5000

5 0
3 years ago
Circle towns limit form a perfectly circular shape that has a population of 20000 in the population density of 480 people per sq
Alex

Answer:

D =\frac{P}{\pi X^2}

And solving for the radius we got:

X = \sqrt{\frac{P}{\pi D}}

And replacing the data given we got:

X = \sqrt{\frac{480 \frac{people}{km^2}}{\pi *20000 people}}= 0.0874Km

And this value converted to meters is X = 87.40 m

Step-by-step explanation:

For this case we know the population size P = 20000 and we also know the population density D = 480 \frac{people}{km^2}

We can assume that the area is a circle. We also know that the formula for the population density is given by:

D= \frac{P}{A}

Where P represent the number of people and A the area. Since we are assuming a circle then the area is given by:

A = \pi X^2

With X the radius of the circle

And then the populationd density become:

D =\frac{P}{\pi X^2}

And solving for the radius we got:

X = \sqrt{\frac{P}{\pi D}}

And replacing the data given we got:

X = \sqrt{\frac{480 \frac{people}{km^2}}{\pi *20000 people}}= 0.0874Km

And this value converted to meters is X = 87.40 m

6 0
4 years ago
Find the equation of the line.<br> Use exact numbers.
gladu [14]

Answer:

y = 2/3x + 4

Step-by-step explanation:

Step 1: Find slope

m = (4-0)/(0+6)

m = 2/3

Step 2: Write in y-int (0, 4)

y = 2/3x + 4

8 0
3 years ago
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