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viktelen [127]
3 years ago
13

Write the set of points greater than or equal to −5−5 but strictly less than 44, excluding 00, as a union of two intervals (if y

ou're having trouble with this, try drawing a number line):
Mathematics
1 answer:
Alecsey [184]3 years ago
7 0
What we want to draw is the half closed interval:

                                          I=   [-5, 4) excluding 0,

as the union of 2 different intervals say a and b.

Let a be the interval containing the smallest value.

Then the smallest value of a is -5, and the largest possible value of a is 0, not included, if we want to write a as an interval, without "gaps", or "holes".

So a=[-5, 0)

similarly, b=(0, 4).


Answer: [-5, 4)=[-5, 0)∪(0, 4)

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How would you graph this correctly onto a graph?
saw5 [17]

Answer:

Here is how you graph your equations correctly :D

Step-by-step explanation:

Graph y > x − 2.

Use the slope-intercept form to find the slope and y-intercept.

Slope: 1

y-intercept: (0, -2)

Graph a dashed line, then shade the area above the boundary line since y is greater than x − 2 .

y > x - 2

Graphy < −4x + 2.

Use the slope-intercept form to find the slope and y-intercept.

Slope: -4

y-intercept: (0, 2)

Graph a dashed line, then shade the area below the boundary line since y is less than − 4 x + 2 .

y < -4x + 2

Plot each graph on the same coordinate system.

y > x - 2

Y < -4x + 2

I hope this helps.

8 0
3 years ago
What transformation is made from f(x) → f(-x)?
sineoko [7]

Answer:

A) reflection across the y-axis

Step-by-step explanation:

If f(x)=f(-x), then this says that two y-coordinates are equal for opposite values of x.

Let (a,b) a point on f.

Then f(a)=b.

We also know that f(-a)=b and therefore (-a,b) is also a point on the graph.

If you graph [/tex](-a,b)[/tex] and (a,b) you will see they are symmetrical to each about the y-axis.

Example if given both f(x)=f(-x) and f(2)=3, then f(-2)=3. This means both (2,3) and (-2,3) are points on the graph.

Here is what those two points look like on a Cartesian Plane (please see graph in picture).

8 0
3 years ago
Use the Distributive Property to determine which of the following statements is equivalent to 5(2a – 3b).
NNADVOKAT [17]

Answer:

Step-by-step explanation:

10a-15b

4 0
3 years ago
Solve: VII multiplied by IX. Show your answer in standard form.
matrenka [14]
7*9
b. 63


v=5 i=1 
5+1+1= 7

x=10

10-1= 9

9*7= 63

8 0
3 years ago
jack has 14 cards. by the end of the week his amount of cards has doubled. how many cards does jack have now
slava [35]

Answer:

Jack has 28 cards.

Step-by-step explanation:

To double 14, multiply 14 times 2. 14x2=28

6 0
3 years ago
Read 2 more answers
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