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3 years ago

Solution of the system of inequalities

Mathematics

1 answer:

Agata [3.3K]3 years ago

5 0

Answer:

Step-by-step explanation:

(0,-1) is not part of the solution because:

It is not in the solution region and

the bottom line is not inclusive so it does not count.

Any points in the shaded region are solutions. Since (0,-1) is not in the shaded region it is not a solution.

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Ellen must take 4 courses this semester. She has a list of 3 math courses and 4 science courses to from which to choose. (a) Ini

prisoha [69]

Answer:

So the number of total combinations is 35.

Step-by-step explanation:

We know that Ellen must take 4 courses this semester. She has a list of 3 math courses and 4 science courses.

Therefore, she have total 7 courses.

So, we calculate the number of combinations to choose 4 out of 7 courses.

We get:

$C_4^7=\frac{7!}{4!(7-4)!}=35\\$

So the number of total combinations is 35.

7 0

3 years ago

PLEASE HELP ME 2x+45=90

arsen [322]

Answer:

x = 45/2 = 22.5 cm

Step-by-step explanation:

2x + 45 = 90

2x = 90- 45= 45

2x = 45

x = 45/2 = 22.5 cm

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3 years ago

Convert 0.4 J to kJ. Please show working

dybincka [34]

Answer:

0.0004

Step-by-step explanation:

divide the energy value by 1000

0.4/1000

7 0

3 years ago

Read 2 more answers

On the plane curve defined by the parametric equations below, what point corresponds to t= -1

Anton [14]

The equation x=2t-1 represent the x-coordinate. To get the value of x, substitute t with -1.

That is: x = 2(-1) - 1
= -2-1
= -3
Likewise, the equation y=t∧-3 represent the y-coordinate. Substituting t with -1,

y = (-1)∧-3
= -1

The point that correspond to t=-1 is (-3,-1).

6 0

3 years ago

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-4x + 7 = 2y - 3 y-intercept: x intercept:

pantera1 [17]

Answer:

x-intercept: $\bigg(\frac{5}{2}, \:0\bigg)$