Answer:
whatever
Step-by-step explanation:
the first quartile is between 34 and 36 = 35
the third quartile is between 45 and 47 = 46
a is given to us so just plug a into the first equation:
b-3 - 3b =9
Add 3 to both sides:
b-3b=12
Combine like terms:
-2b=12
Divide by -2 to get b by itself:
b=-6
The only answer with b as -6 is the first one, (-9,-6)
Answer:
Options (1), (2), (3) and (7)
Step-by-step explanation:
Given expression is .
Now we will solve this expression with the help of law of exponents.
[Option 2]
[Option 1]
[Option 3]
[Option 7]
Therefore, Options (1), (2), (3) and (7) are the correct options.
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
<u>Hope this help</u>s