Answer:
Step-by-step explanation:
{у = 3х - 12
{4х + 6у = −6
4x + 6[3x - 12] = −6
4x + 18x - 72 = −6
−6 = −72 + 22x
+72 + 72
___________
66 = 22x
__ ___
22 22
[Plug this back into both equations above to get the y-coordinate of −3];
I am joyous to assist you anytime.
The solution is the point where the lines meet.
The x coordinate is between 0 and 1
The y coordinate is between 2 and 3
The solution is approximately (x,y) = (-0.4, 2.9)
The values of the missing sides is DE = 12 and AC = 6.5
<h3>
Similar triangles</h3>
Two triangles are said to be similar if the ratio of their corresponding sides are in the same proportion. Also all the corresponding angles are congruent.
Using Pythagoras:
AC² = AB² + BC²
AC² = 2.5² + 6²
AC = 6.5
Using similar triangles:
BC / DE = AB / EF
6/DE = 2.5/5
DE = 12
The values of the missing sides is DE = 12 and AC = 6.5
Find out more on Similar triangles at: brainly.com/question/14285697
Answer:
y = 5x - 800
Step-by-step explanation:
If x represents the number of pages typed, 5x will represent how much money he earns from typing them, since he gets $5 per page.
Then, 800 needs to be subtracted from this because he spent $800 on the computer.
So, the equation will be y = 5x - 800 to represent his profit.
Needing to find the circumference of a circle you you find that you need to use the equation C=2 π R
C= 28.26
this is how much fence they would need around the garden approximately.