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kifflom [539]
3 years ago
13

How do you wright 19,266,420 using words

Mathematics
2 answers:
Gemiola [76]3 years ago
8 0
Nineteen million, two hundred sixty-six thousand, four hundred twenty! :)
Harlamova29_29 [7]3 years ago
5 0
In word form, the answer would look like this: Nineteen million two hundred sixty six thousand four hundred twenty.
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Solve the system of equations.<br> y= 3x<br> y= x2-10
svetoff [14.1K]

Answer:

(-5, 2) and (2, 6)

Step-by-step explanation:

Use the substitution method. We know that y = 3x and y = x^2 - 10, so we can set them equal to one another.

3x = x^2 - 10

x^2 - 3x - 10 = 0

Use the quadratic equation to solve for x.

x = - 5, 2

Now solve for y using these two values of x by substituting it back into the equations.

y = - 15,  6

In coordinate form, (-5, 2) and (2, 6)

7 0
3 years ago
3. Show that a circle with equation (x−2)^2+(y+3)^2=160 has two tangent lines with equations
Pepsi [2]

Answer:

  see below

Step-by-step explanation:

A graphing calculator shows each of the lines intersect the circle in exactly one place, so is tangent.

__

Each of the given lines is written in point-slope form. Each has a slope of 1/3. We will call the point in its equation the "reference point" of each line. For the first line, it is (6, -15); for the second line it is (-2, 9).

The center of the circle is (2, -3), so the slope from the center to the reference point of each line is ...

  line 1: (-15 -(-3))/(6 -2) = -12/4 = -3

  line 2: (9 -(-3))/(-2-2) = 12/-4 = -3

These slopes are the negative reciprocal of the slope of each of the lines, so a segment from the circle center to the reference point of each line is perpendicular to the line.

__

The reference point of line 1 (6, -15) is on the circle:

  (6 -2)^2 +(-15 +3)^2 = 16 +144 = 160

The reference point of line 2 (-2, 9) is on the circle:

  (-2-2)^2 +(9 +3)^2 = 16 +144 = 160

So, the reference point of each line is on the circle and that point is the endpoint of a segment from the circle center that is perpendicular to the line. Hence each of the lines is a tangent at its reference point.

6 0
3 years ago
Jose purchased 5.5 feet of rope to hang a planter on the back porch.The planter required a set of 3 ropes measuring 18 inches ea
Soloha48 [4]
You have to multiply 18 by three which is 54 inches.
then you have to divide 54 by 12 because a foot is 12 inches.
when you do that you should get 4.5
then you subtract 4.5 by 5.5 and get 1 foot of rope left
18*3=54
54/12=4.5
5.5-4.5=1.0
1 foot of rope
3 0
3 years ago
What are the real or imaginary solutions of the polynomials<br> x4 -­52x2 + 576 = 0
Tatiana [17]
<span>-4,4,-6,6 is your answer </span>
6 0
3 years ago
What is the radius of the circle x² + y² = 9y - 11?
Murljashka [212]

Answer:

\sqrt{ 37/2

Step-by-step explanation:

8 0
3 years ago
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