Answer:
0.21
Step-by-step explanation:
There's 21 kids with a cell phone and no tablet
so 21/100 = 0.21
Answer:
68 square units
Step-by-step explanation:
The shape in the graph is a trapezoid. The two vertical sides are the parallel bases. The bottom horizontal side is the height.
A = (b1 + b2)h/2
A = (10 + 7)(8)/2
A = 68
Answer: 68 square units
Answer: It is 2.
Step-by-step explanation:
Make both equation equal to each other and solve for x, as following:
- Add like terms.
- Factor the equation.
Substitute the value of x obtained into any of the original equations to obtain the y-coordinate.
Then, this is:
Suirface area of a cube = 6a^2
when a=edge
Answer:
Step-by-step explanation:
Since surface area consists of the sum of the outer faces of each polygon, the ratio of the two surface areas will be equal to the ratio of the side lengths squared (since we multiply them to get area).
The ratio of the corresponding side lengths of the solids are . Therefore, the ratio of their surface areas must be