I believe you do it this way.
You multiply the den. with the whole number and add the num.
2 x 8 + 1 = 17. This now becomes 17/8 because you keep the same den.
1 x 7 + 2 = 9. This now becomes 9/7.
Now subtract 17/8 - 9/7
This equals 8/1, or, 8.
Answer: they are similar because of the same side lengths
Step-by-step explanation:
Y=3x+5
Gradient=3
y-y1=m(x-x1)
If the points are (7,1)
y-1=3(x-7)
y-1=3x-21
y=3x-20 as your equation
Note: when lines are parallel they have equal gradient
Answer:
there is a 4 out of 10 chance
Answer:
Step-by-step explanation:
the surface area = area of the 4 faces+ area of the 2 bases
4 *(15*8) + 2*( 8*6) = 480+96 = 576 cm²
if the length of the faces tripled, the two bases remain unchanged because the prism just gets taller on the same bases.