Answer:
it should be -20 but the answer is 20
Step-by-step explanation:
We will call the first number n, and the second number x.
3n-x=118
2n+x=147
Now, solve one of the equations for x.
x=147-2n
Then, substitute this into the other formula for x.
3n-(147-2n)=118
Next, solve for n:
3n-147+2n=118
5n=265
n=53
^^^That's your first number.
Lastly, plug in 53 for n into either equation to solve for x.
2(53)+x=147
106+x=147
x=41
^^^This is your second number.
Answer:
Please check the explanation.
Step-by-step explanation:
Given that
|v|=38
Ф = 120°
<u>Finding the horizontal component</u>
The horizontal component can be obtained using the formula
Vx = |v| cos Ф
= 38 cos 120°
= 38 (-0.5)
= -19
Thus, the horizontal component is:
Vx = -19
<u>Finding the vertical component</u>
The vertical component can be obtained using the formula
Vy = |v| sin Ф
= 38 sin 120°
= 38 (0.86)
= 32.68
Thus, the vertical component is:
Vy = -19
- A vector 'v' with magnitude |v| and direction Ф can be written as:
v = |v| cos Ф i + |v| sin Ф j
As
|v|=38
Ф = 120°
Thus, the vector is
v = 38 cos 120° i + 38 sin 120° j
or
v = -19 i + 32.68 j
Answer:
7
Step-by-step explanation:
7 plus 7 equals 14, which is two times 7
Answer:
99.38 grams
Step-by-step explanation:
The given information can be translated to the exponential function ...
q = 50·0.98^(t -34) . . . . . t in days
Then for t=0, we have ...
q = 50·0.98^(-34) ≈ 99.38 . . . . grams
