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MrMuchimi
2 years ago
12

Which system of inequalities is represented by the graph; need help ASAP

Mathematics
2 answers:
dalvyx [7]2 years ago
8 0

Answer:

blue line : y>3x+3

red line : -y>x+2

notice the line and try to find x and y intercepts of both line.

then form an equation.

Rashid [163]2 years ago
7 0

Answer:

see below

Step-by-step explanation:

Blue line equation: y = 3x + 3

Red line equation: y = -x - 2

Blue shaded area:  3x + 3 \leq y

Yellow shaded area: -x - 2 > y

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What are the GCF of 18 and 20
Fittoniya [83]

Answer:

The greatest common factor (GCF) of 18 and 20 is 2.

Step-by-step explanation:

To solve this problem, first, you have to find the greatest common factor of 18 and 20.

Factors of 18:

1, 2, 3, 6, 9, and 18.

Factors of 20:

1, 2, 4, 5, 10, and 20.

So, the greatest common factor (GCF) of 18 and 20 is 2.

4 0
3 years ago
Which of the following is a third root of the given complex number? 27(cos(pi/5)+isin(pi/5))
Digiron [165]
<span>The third root of the given complex number 27(cos(pi/5)+isin(pi/5)) is <span>3(cos(pi/15)+i sin(pi/15)) 

</span>The solution would be like this for this specific problem:</span>   <span>2^5 = 32 so you need a 2 out front the 5th root of cos(x) + i sin(x) is cos(x/5) + i sin(x/5). Additionally, 5 roots are located at even intervals around the circle. They are spaced every 2 pi/5 or 6 pi/15 radians. </span>   <span>Roots are located at pi/15, pi/15+ 10pi/15 = 11 pi/15 and pi/15+ 20pi/15 = 21 pi/15 (or 7 pi /5 ).</span>
5 0
4 years ago
How many ML of a 35% acid mixture and a 95% acid mixture should be mixed to get 120 ML of a 40% acid mixture?
Anon25 [30]

<u>ANSWER: </u>

110ML of 35% acid solution must be mixed with 10ML of 95% solution to obtain 120ML of 40% solution.

<u>SOLUTION:   </u>

First, set up table. fill in the unknowns with variables x and y.  The table is attached below.

From the table shown below, we can easily set up the two equations.  

Sum of values of two acids = Value of mixture  

0.35x + 0.95y = 48  

For convenience, we will multiply the entire equation by 100,

35 x + 95y = 4800     ------ (1)  

Now, Sum of amounts of each acid = Amount of mixture  

x + y = 120    --------- (2)

Multiply eqn 2  with 35 for easy calculation and derive the equation into one variable.

35 = 35x + 35y = 4200  

Subtracting equation (2) from (1),  we get

0 + 60y = 600  

Thus, 60y = 600  

y = \frac{600}{60} = 10

Substituting y = 10 in (2),

35x + 35(10) = 4200  

35x + 350 = 4200  

35x = 4200 - 350  

35x = 3850  

x = \frac{3850}{35} = 110

So, we have x = 110 and y = 10

We can conclude that 110ML of 35% acid solution must be mixed with 10ML of 95% solution to obtain 120 ML of 40% solution.

3 0
3 years ago
A recursive formula for the sequence 18,9,4.5,... is
dybincka [34]

Answer:

A1 = 18

A(n) = A (n-1) -2

Step-by-step explanation:

N represents the number in a sequence and the difference in the sequence is -2 since each time the number is listed in the sequence it is divide by 2.

3 0
2 years ago
What are the values for y when x is 1, 3, and 5?<br> y = 3x + 10
Ivan
When x=1 y=13 when x=3 y=19 and when x=5 y=25 you just plug the numbers in for x and solve
5 0
2 years ago
Read 2 more answers
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