Answer:
a +2b
Step-by-step explanation:
2(a + 2b) - a - 2b
Distribute
2a +4b -a -2b
Combine like terms
2a -a + 4b-2b
a +2b
Answer:
7.) 16.7
Step-by-step explanation:
7). First you have to find the length of the line with the triangle that is at a 90 angle with the longest side of the triangle
Using the pythagrorem theorem a² + b² = c²
4² + b² = 5²
b² = 5² - 4²
b² = 25 - 16
b² = 9
√b² =√9
b = 3
next you do the same thing to find the missing segment of the longest side
3² + b² = 13²
b² = 169 - 9
b² = 160
b = √160 or ≈ 12.7
12.7 + 4 = 16.7
so 16.7 is the length of that side
Answer:The answer is 7.5808×10^2
Step-by-step explanation:
Because when we take the decimal point backwards ,the exponent is in positive. And the standard form is that the decimal point comes after one non zero number.
3×15=15
4×7=28
The only multiple of 10 between these two numbers is 20. 20 does indeed have factors that are odd or even so we can conclude that 20 must be the answer.
Answer:
Step-by-step explanation: