Ask question

Ask question

All categories

3 years ago

14

Evaluate −6 − (−4). (1 point)

2 answers:

Andru [333]3 years ago

6 0

Answer:

-2

Step-by-step explanation:

-6+4

dolphi86 [110]3 years ago

5 0

Answer:

-2

Step-by-step explanation:

You might be interested in

How do you identify the angle of rotation including the direction

yarga [219]

In rotation, the angle through which the plane figure is rotated is called the point of a figure through a specified angle and direction about a fixed point. Identify the corresponding vertices of the rotation.

6 0

3 years ago

Find the standard form of the equation of the ellipse with the given characteristics. Vertices: (4, 0), (4, 14); endpoints of th

saul85 [17]

Answer:

The standard form of the ellipse is $\frac{(x-4)^{2}}{9} + \frac{(y-7)^{2}}{49} = 1$ .

Step-by-step explanation:

The major axis of the ellipse is located in the y axis, whereas the minor axis is in the x axis. The center of the ellipse is the midpoint of the line segment between vertices, this is:

$(h, k) =\frac{1}{2}\cdot V_{1} (x,y) + \frac{1}{2}\cdot V_{2} (x,y)$ (1)

If we know that $V_{1} (x,y) = (4,0)$ and $V_{2}(x,y) = (4, 14)$ , then the coordinates of the center are, respectively:

$(h,k) = \frac{1}{2}\cdot (4, 0) + \frac{1}{2}\cdot (4,14)$

$(h,k) = (2,0) + (2, 7)$

$(h, k) = (4, 7)$

The length of each semiaxis is, respectively:

$a = \sqrt{(1 - 4)^{2}+(7-7)^{2}}$

$a = 3$

$b = \sqrt{(4-4)^{2}+(0-7)^{2}}$

$b = 7$

The standard equation of the ellipse is described by the following formula:

$\frac{(x-h)^{2}}{a^{2}}+ \frac{(y-k)^{2}}{b^{2}} = 1$

Where:

$h$ , $k$ - Coordinates of the center of the ellipse.

$a$ , $b$ - Length of the orthogonal semiaxes.

If we know that $h = 4$ , $k = 7$ , $a = 3$ and $b = 7$ , then the standard form of the ellipse is:

$\frac{(x-4)^{2}}{9} + \frac{(y-7)^{2}}{49} = 1$

4 0

3 years ago

5lb 7oz -11oz need help quick

Aliun [14]

Answer:

76 ounces

Step-by-step explanation:

I'm assuming you meant:

5lb+7oz-11oz=

16 ounces in a pound

5lb+7oz-11oz=

80+7-11=

87-11=

76 ounces

3 0

2 years ago

The slope of a line is -1/3, and the y intercept is 10/3. What is the equation of the line written in slope-intercept form

REY [17]

Should be y=-1/3x+10/3

Hope this helps :)

7 0

2 years ago

Approximately how many more job openings are expected for security guards than pharmacy technicians?

n200080 [17]

21,000 is the answer

8 0

3 years ago

Read 2 more answers