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3 years ago

Whats the radius if a basketball?

1 answer:

8 0

A men's ball is about 9.55 inches (24.26 cm) in diameter and a women's ball is about 9.23 inches (23.44 cm) in diameter.

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AABC ~ADEF F 21 D B N 28 E C Solve for N. 28 = ☆ N=[?]

sergij07 [2.7K]

Answer:

N = 3

Step-by-step explanation:

$\frac{28}{4} = \frac{21}{N} \\ \\ 28N = 21 \times 4 \\ 28N = 84 \\ \\ N = \frac{84}{28} \\ \\ N = 3$

I hope I helped you^_^

8 0

3 years ago

A bacteria population is 3000 at time t = 0 and its rate of growth is 1000 · 8t bacteria per hour after t hours.

julia-pushkina [17]

P=3000x e^( 1000 x 8t )is the function
t is time, so "after a hour" means that the t is 1.
The problem is asking for the population, which is P
Substitute t for 1 and you obtain:
P= 3000 x e^(1000 x 8 x 1)
P=3000e^8000

4 0

3 years ago

Compare the fraction - 1/3 -1/2 100 points

Gre4nikov [31]

Answer:

-1/3>-1/2

Step-by-step explanation:

-1/3>-1/2

6 0

3 years ago

The equation of a circle is x^2+y^2-2x +6y-6=0. Find the center and radius of the circle by completing the square.you must inclu

zavuch27 [327]

Answer:

The center of the circle is at;

$(1,-3)$

The radius of the circle is;

$r=4$

Explanation:

Given the equation of circle;

$x^2+y^2-2x+6y-6=0$

we want to re-write it in the form;

$(x-h)^2+(y-k)^2=r^2$

where;

$\begin{gathered} (h,k)\text{ is the center of the circle} \\ r\text{ is the radius} \end{gathered}$

Applying Completing the square method;

$\begin{gathered} x^2+y^2-2x+6y-6=0 \\ x^2-2x+1+y^2+6y+9=6+1+9 \\ (x-1)^2+(y+3)^2=16 \\ (x-1)^2+(y+3)^2=4^2 \end{gathered}$

comparing the derived equation to the general form we have;

$\begin{gathered} h=1 \\ k=-3 \\ r=4 \end{gathered}$

Therefore;

The center of the circle is at;

$(1,-3)$

The radius of the circle is;

$r=4$

6 0

10 months ago

Write the equation of a line that passes through ( 4, 6), and has a slope of 1/3

nlexa [21]

Answer:

y = 1/3x + 14/3

Step-by-step explanation:

y = mx + b

we know the slope, so the equation would be --> y = 1/3x + b

Now we plug in the coordinates of the given point (4, 6) the line goes through, and solve for b:

y = 1/3x + b

6 = 1/3(4) + b

6 = 4/3 + b

-4/3 -4/3

----------------

14/3 = b

3 0

2 years ago