Answer:
132cm²
Step-by-step explanation:
Split into two shape: Cube & Triangle prism
Cube surface area:
1) area of top & bottom
(4×3)×2= 12×2= 24cm²
2) area of the sides (only three sides as for surface)
(3×6)×3= 18×3= 54cm²
Triangle prism surface area:
1) area of two sides of triangle:
(½×6×4)×2= (3×4)×2= 12×2= 24cm²
2) area of two sides of rectangle:
(5×3)×2= 15×2= 30cm2
Total surface area: 24+54+24+30= 132cm²
Answer:
62 degrees
Step-by-step explanation:
Since we know 3 sides of the triangle, we can use law of cosines.
Take the arcos or cosine inverse
Which is about 62 degrees.
Answer:
Step-by-step explanation:
Given
See attachment for her sketch
Required
Which equation do not represent the perimeter
From the attached sketch:
--- Length
--- Width
Perimeter (P) is calculated as:
This gives:
---- This represents (A)
Open bracket
---- This represents (B)
In algebra:
means 
So, the expression becomes
--- This represents (D)
<em>This implies that (C) does not represent the perimeter</em>
Answer:
k = -3.5
Step-by-step explanation:
6k ÷ 7 = -3
Multiply 7 to both sides
6k = -21
Divide both sides by 6
6k/6 = -21/6
k = -3.5
To check if the answer is correct or not, you can always plug in -3.5 for k in the equation.
6(-3.5) ÷ 7 = -3
-21 ÷ 7 = -3
-3 = -3
-3 equals -3 so it is correct that k = -3.5
Titania is the greatest because it has the largest magnitude(exponent). than obreron than ariel than umbriel and finally miranda
