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Lynna [10]
2 years ago
10

Can anyone help me figure this out / explain it to me pls .. ="(

Mathematics
1 answer:
Bad White [126]2 years ago
8 0
Um I think your teacher might be high
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The system shown has the unique solution (2, y, z). Solve the system and select the values that complete the solution. y = 0 y =
madreJ [45]
So we are given a system:
3x-2y+3z=0\\
-3x - 5y - 5z= -21
Substitute x = 2 we get the system:
-2y+3z=-6\\
- 5y - 5z= -15
Multiply the first equation by -5 and the second by 2 we get the system:
10y-15z=30\\
- 10y - 10z= -30
Adding the two equations we get :
-25z=0\text{ then}z=0.
We find the value of y by using any of the other equations like this:
-2y=-6\\y=3.
Final solution:
z=0,y=3
8 0
3 years ago
Read 2 more answers
What is the slope and y-intercept of this line?y -6x 2
Lelu [443]
In the slope intercept method, it is very simple to find the y intercept and the slope. The slope is always accompanied with the x so in this problem, the slope is -6 meaning it has a negative correlation (it's pointing down on the graph) the y intercept is the other number on that side of the equals sign. It is 2 and is positive. 
4 0
3 years ago
Jenin andrea marie are picking apples andre pics three times as many pounds as maria jane picks two times as many pounds is andr
Sindrei [870]
<span>Let x=apples that Andre picks
Then x/3=apples that Maria picks
And 2x=apples that Jane picks 
Soooo, 
x +(x/3)+2x=840 multiply each term by 3

3x+x+6x=2520 collect like terms
10x=2520
x=252</span>
5 0
3 years ago
Tanvi runs 7.38 kilometers every morning. One day, she runs 0.73 kilometers and then
Rama09 [41]

Answer:

6.65 kilometers

Step-by-step explanation:

7.38-0.73=6.65

8 0
3 years ago
Two horses are ready to return to their barn after a long workout session at the track. The horses are at coordinates H(1,10) an
lana [24]
Distance between points \left(x_1,y_1\right) and \left( x_2,y_2 \right) is

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2

Distance from H to B:

[tex]d=\sqrt{(10-(-3))^2+(1-(-9))^2}=\sqrt{169+100}=\sqrt{269}d=\sqrt{(1-(-3))^2+(10-(-9))^2}=\sqrt{16+361}=\sqrt{376}[/tex] units.

Distance from Z to B:

d=\sqrt{(10-(-3))^2+(1-(-9))^2}=\sqrt{169+100}=\sqrt{269} units.

Horse Z is closer to the barn.

(The conversion to meters is not required; the question does not ask for actual distances, so "units" is OK.)
6 0
3 years ago
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