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3 years ago

What is x in the equation 3x=9

Mathematics

2 answers:

sergij07 [2.7K]3 years ago

4 0

The answer is 9
3x/3=9/3
x=3

dsp733 years ago

3 0

I think in the equation X equals 27

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I need help understanding how to do this .

motikmotik

To draw the equation of a circle, you need the center coordinates $(h,k)$ and the radius $r$ .

Once you know them, you can write the equation for the circle as

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

We can eyeball the center coordinates: from the origin, we have to go one step right and two steps below, so the coordinates are $(1,-2)$

For the radius, you can see that if you move three units up, down, left or right from the center, you reach the circumference. So, the radius is 3.

Given everything we said above, we're ready to write the equation:

$(x-1)^2+(y+2)^2 = 9$

6 0

3 years ago

A triangle has vertices at B(−3, 0), C(2, −1), D(−1, 2). Which series of transformations would produce an image with vertices B″

vichka [17]

We must apply the transformation rules (x, y) → (- x, y) and (x, y) → (x + 1, y + 1) to generate the vertices B''(x, y) = (4, 1), C''(x, y) = (- 1, 0), D''(x, y) = (2, 3). (Right choice: B)

<h3>How to determine the right transformation rules for a set of three points</h3>

In this question we have three points on a Cartesian plane: B(x, y) = (- 3, 0), C(x, y) = (2, - 1), D(x, y) = (- 1, 2). First, we proceed to apply the transformation rule (x, y) → (- x, y):

B'(x, y) = (3, 0), C'(x, y) = (- 2, -1), D'(x, y) = (1, 2)

Then, we use the transformation rule (x, y) → (x + 1, y + 1):

B''(x, y) = (4, 1), C''(x, y) = (- 1, 0), D''(x, y) = (2, 3)

Then, we must apply the transformation rules (x, y) → (- x, y) and (x, y) → (x + 1, y + 1) to generate the vertices B''(x, y) = (4, 1), C''(x, y) = (- 1, 0), D''(x, y) = (2, 3).

To learn more on transformation rules: brainly.com/question/9201867

#SPJ1

7 0

2 years ago

The quadratic function h(t)= -16.t^2+150 models a ball’s height, in feet, over time, in seconds, after it is dropped from a 15 s

irga5000 [103]

At time 0 its height is -16(0)^2 + 150 = 150

Height from whick its dropped is 150 ft.

8 0

3 years ago

If logx27 + logy4 =5 and logx27 - logy4 =1 find x and y

Elanso [62]

Answer:

Hello,

I have reply too quick in comments (sorry)

Step-by-step explanation:

$\left\{\begin{array}{ccc}log_x (27)+log_y (4)=5\\log_x (27)-log_y (4)=1\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}2*log_x (27)=6\\2*log_y (4)=4\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}log_x (27)=3\\log_y (4)=2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}x^{log_x (27)}=x^3\\y^{log_y (4)}=y^2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}27=x^3\\4=y^2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}x=3\\y=2\\\end{array}\right.\\\\$

5 0

2 years ago

Find the slope of the line.

Aloiza [94]

Answer: y=1x-1

Step-by-step explanation:

3 0

2 years ago

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