Based on the given fractions above which are 7/8 and 42/4, in order for us to know if they are both proportional is to do the cross multiplication. Let's say, we multiply 4 by 7 and we get 28. Divide 28 by 8 and the result is 3.5 and not 42. Therefore, we can say that these fractions are NOT proportional. Hope this helps.
Answer:
The height of a pile of 5 equal sized boxes is 95cm.
Step-by-step explanation:
We know that 1 pile of 4 is 76 cm. All we have to is divide this by 4 to find how tall one box is.
76/4 = 19.
This means that one box is 19 cm tall.
Now we will add 19cm to 76cm.
19 + 76 = 95
The height of a pile of 5 equal sized boxes is 95cm.
<em>~CaityConcerto</em>
Answer:
the perimeter of this trapzoid is 26.5.
Sorry if I am wrong and please do correct me if I am wrong.
Step-by-step explanation:
Y = -2x² + 8x - 18
x = -b/2a
x = -8/2(-2)
x = -8/-4
x = 2
y = -2x² + 8x - 18
y = -2(2)² + 8(2) - 18
y = -2(4) + 16 - 18
y = -8 - 2
y = -10
(x, y) = (2, -10)
Vertex: (2, -10)
Axis of Symmetry: x = 2
