X+y=3
Subtract x from both sides
y=-x+3
Substitute
2x--x+3=6
2x+x+3=6
3x+3=6
Subtract 3 from both sides
3x=3
Divide both sides by 3
x=1
Answer:
a)Volume 390ft3. Surface area 450ft2
b)surface area
c)volume
Step-by-step explanation:
2*15*13=390
2*15*2=60+15*13*2=390
Answer:
Step-by-step explanation:
66.6344086
Answer:
These two lines are parallel and system of these equations have no solution
Step-by-step explanation:
Parallel Lines: Lines having same slope and different x and y intercept are parallel lines. System of such equations does not have any solution as these lines does not intersect at any finite points.
Standard form of line is
where
is slope and
is y-intercept.
First Line:
![-4x-4y=-5\\\\-4y=-5+4x\\\\Divide\ both\ sides\ by\ -4\\\\y=-x+\frac{5}{4}\\\\compare\ with\ y=mx+c\\\\slope=-1,\ c=\frac{5}{4}](https://tex.z-dn.net/?f=-4x-4y%3D-5%5C%5C%5C%5C-4y%3D-5%2B4x%5C%5C%5C%5CDivide%5C%20both%5C%20sides%5C%20by%5C%20-4%5C%5C%5C%5Cy%3D-x%2B%5Cfrac%7B5%7D%7B4%7D%5C%5C%5C%5Ccompare%5C%20with%5C%20y%3Dmx%2Bc%5C%5C%5C%5Cslope%3D-1%2C%5C%20c%3D%5Cfrac%7B5%7D%7B4%7D)
Second Line:
![12x+12y=112\\\\12y=112+-12x\\\\Divide\ both\ sides\ by\ 12\\\\y=-x+\frac{12}{112}\\\\compare\ with\ y=mx+c\\\\slope=-1,\ c=\frac{12}{112}](https://tex.z-dn.net/?f=12x%2B12y%3D112%5C%5C%5C%5C12y%3D112%2B-12x%5C%5C%5C%5CDivide%5C%20both%5C%20sides%5C%20by%5C%2012%5C%5C%5C%5Cy%3D-x%2B%5Cfrac%7B12%7D%7B112%7D%5C%5C%5C%5Ccompare%5C%20with%5C%20y%3Dmx%2Bc%5C%5C%5C%5Cslope%3D-1%2C%5C%20c%3D%5Cfrac%7B12%7D%7B112%7D)
Hence these two lines are parallel and system of these equations have no solution
Answer:
<h2>D</h2>
Step-by-step explanation:
The shape we see is a kite.
The measures of the triangles must add to 180°.
27 + 90 + x = 180°
117 + x = 180°
x = 63°
3 = 63°
We can also solve for 1 and 2. 2 is a right angle so 90° and 1 is a reflection of the 27° angle on the other side, so it also is 27°.
1 = 27° 2 = 90° 3 = 63°
I'm always happy to help :)