Answer: 
Step-by-step explanation:
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The exercise is: " Evaluate 
when 
and 
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Given the following expression:
You can follow these steps in order to evaluate it:
1. Substitute and into the expression provided in the exercise:
2. Solve the multiplications. Remember that:
Then:
3. Reduce the fraction. Notice that the numerator 6 and the denomiantor 4 can be both divided by 2. Then:
4. Solve the addition:
Since the number 21 has a denominator 1, the Least Common Denominator is:
Then, the sum is:
Answer:
each penny is 1.52 millimeters high, and a stack of 20 pennies is 30.4 millimeters high
Step-by-step explanation:
18.24÷12= 1.52
1.52×20= 30.4
In order to solve this let us for at assume that the value of the width is X. Therefore the length will be x+5.
We can now write an equation:
(X+5) + (X+5) + X + X = 58
Combining like terms we should get
4X + 10 = 58
Now subtract 10 from both sides to get
4x = 48
Divide by 4 now and you should get
X = 12
Now we know the value of X and therefore the width.
Answer:
8 units
Step-by-step explanation:
Because the y-intercept for both ordered pairs is 4, then all you need to do is subtract X2 from X1, which is 8.
The height can be found by multiplying 95 * sin 61
which is 83.088 or 83.1, D)
