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Softa [21]
2 years ago
5

( -8z)² find the answer

Mathematics
1 answer:
olasank [31]2 years ago
4 0
The answer is (-8z)^2= 16z^2
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1. A circle with center (-5, 2) is tangent to the y-axis. What is the radius of the circle? What is the equation of the circle?
Bess [88]

Answer:

Step-by-step explanation:

1)  The center lies on the vertical line x = -5 and the the circle is tangent to (touches in one place only) the y-axis.  Thus, the radius is 5.

2)  Starting with (x - h)^2 + (y - k)^2 = r^2 and comparing this to the given

                     (x - 4)^2 + (y + 3)^2 = 6^2

we see that h = 4, k = -3 and r = 6.  The center is at (4, -3) and the radius is 6.

3)  Notice that A and B have the same x-coordinate, x = 15.  The center of the circle is thus (15, -2), where that -2 is the halfway point between the two given points in the vertical direction.   Arbitrarily choose A(15, 4) as one point on the circle.  Then the equation of this circle is

(x - 4)^2 + (y + 3)^2 = r^2 = 6^2, where the 6 is one half of the vertical distance between A(15, 4) and B(15, -8) (which is 12).

4 0
2 years ago
200 chairs on 40 rows ___ in each row (answer it please)
Solnce55 [7]
<span>200 chairs on 40 rows _ 5__ in each row

200/40 =5</span>
6 0
3 years ago
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The table shows the total number of student applications to universities in a particular state over a period of 12 semesters. St
ANTONII [103]
5 out of 12 = 5/12

Those are
1  -  106
2  -  137
4  -  120
6  -  195 and
8  -  139

7 0
3 years ago
Read 2 more answers
A bacteria culture begins with 15 bacteria which double in amount at the end of every hour. How many bacteria are grown during t
Eva8 [605]
The answer is 30720

A = P * rⁿ
A - the final population
r - the growth rate
P - the initial number of bacteria
n - the number of hours

We know:
A = ?
r = 2 (it doubles)
P = 15
n = 12

After 11 hours
A(11) = 15 * 2¹²
A(11) = 15 * 2048
A(11) = 30720

After 12 hours
A(12) = 15 * 2¹²
A(12) = 15 * 4096
A(12) = 61440

<span>How many bacteria are grown during the 12th hour?
A(12) - A(11) = 61440 - 30720 = 30720</span>
8 0
3 years ago
Plz help this is a true or false correct answer only question also giving the points it's worth
Bond [772]

Answer:

1.False

the intervals used to create the histogram is 5.5

2.True

more than 10 hours were used by the students in playing the games

4 0
2 years ago
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