Answer:
m<ABE = 115.5°
m<DBE= 25.5°
Step-by-step explanation:
m<DBC= 90°
m<DBE + m<EBC= 90°
m<DBE +64.5°= 90°
m<DBE = 90°-64.5°
m<DBE = 25.5°
m<ABE = m<ABD + m<DBE = 90°+25.5° = 115.5°
Answer: option c. She subtracted the coefficients instead of dividing them
Explanation:
1) Starting expression (given):
2) Simplified expression (given)
3) Note that if you do the operations correctly you get:
i) By dividing the coefficients:
ii) By subtracting the exponents
And that is the correct result.
4) But if you subtract the coefficients, instead of dividing them, then you get 10 - ( - 5) = 10 + 5 = 15
Which is what she obtained in the numerator. And this is wrong, because the coefficients must be divided.
It is the exponents what you subtract, as per the rule of quotient of powers.
Thtas what you must mean.
The distance beteen th epoints will be sqrt(4^2 + 6^2) = sqrt 52 = 2 sqrt13