Answer:
the areas of these triangles are 83.2cm² and 46.8cm²
Step-by-step explanation:
1. If the triangles are similar and the ratio of the perimeter ois 4:3, then the areas are in the following ratio:
4²:3²
16:9
2. The sum of their areas is 65 cm², then, you can calculate the area of the larger triangle as following:
130(16/16+9)
130(0.64)
=83.2cm²
3. The area of the smaller triangle is:
130(9/16+9)
130(0.36)
46.8cm²
Answer:
<u>Options A , B and D</u>
Step-by-step explanation:
Tomas needs exactly 6 potatoes to make 12 pancakes
So, the rate will be 12/6 = 2
<u>We will check the options:</u>
A) Tomas needs exactly 12 potatoes to make 24 potato pancakes.
Rate = 24/12 = 2
B) Tomas needs exactly 18 potatoes to make 36 potato pancakes.
Rate = 36/18 = 2
C) Tomas needs exactly 24 potatoes to make 44 potato pancakes.
Rate = 44/24 = 1.833
D) Tomas needs exactly 30 potatoes to make 60 potato pancakes.
Rate = 60/30 = 2
E) Tomas needs exactly 36 potatoes to make 78 potato pancakes.
Rate = 78/36 = 2.1667
So, the answers are:
<u>Options A , B and D</u>
Answer:
0.451
Step-by-step explanation:
When you do cos^-1 0.9 ~ .451
You can’t add pi because you have an interval.
Hope this helps :)
Answer:
2
Step-by-step explanation:
f(x) = 3(2) - 4
f(x) = 6 - 4
f(x) = 2
