184.8 calories :)
the grams are both 100, meaning we can use percentages. banana: 70% of 86 (.7*86=?) is 60.2 calories. yogurt: 140% of 89 (1.4*89=?) is 124.6 calories. 60.2+124.6=184.8 calories
Exercise 1:
The easiest way to compute powers of complex numbers is to write them in the form
In this form, you have
The magnitude of the number is given by
So, we have
As for the angle, we have
So, we have
Finally,
Exercise 2:
You simply have to compute the trigonometric function:
So, we have
Answer:
$108
Step-by-step explanation:
Let n be the cost of a keychain, then the cost of a T-Shirt would be 4n. We can use this to set up an equation...
4n+n=135
Combine like terms
5n=135
Divide both sides by 5
n=27
Now we need to find how much she made from selling T-Shirts...
4n=4(27)=$108
7/10
10 * 10 = 100
7 * 10 = 70
70/100
5 * .7
3.5
Between 3 and 4
Answer:
263/10 as a decimal equals 26.3
Step-by-step explanation:
To write 263/10 as a decimal you have to divide numerator by the denominator of the fraction.
We divide now 263 by 10 what we write down as 263/10 and we get 26.3
hope this answer correct :)
