Answer: dydx=2sec2(x)tan(x)
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Because the numbers are less than 45 and more than 40
X=the number we have to find.
This expression "2(x+9)" is when the sum of a number and nine is doubled.
If the result is seven less than the number, we will have: x-7
We can suggest the following equation:
2(x+9)=(x-7)
2x+18=x-7
2x-x=-7-18
x=-25
answer: the number would be: -25.
Divide the numerator by the denominator so for example if you had 1/2 you would divide 1 by 2 to get 0.5
6(7+5) + 3
Hope this helps :)
To check:
PEMDAS
7+5 is 12
6(12) + 3
72 + 3
75
