Answer:
It's x^4+2x^2+2
Step-by-step explanation:
The argument of f(f(x)) function becomes x^2+1-> F=(x^2+1)^2+1 Opening the brackets you get my answer. Not sure if O sign stood for ^4.
so we know the tiffany added 50 and 22 in her account and we know her balance is 306 so to find out how much she earned we have to calculate how much she earned in this case
balance
306-22
306
- 22
_______
284
- 50
2 3 4
so 234 is our answer and we can check our and by seeing if it calculates to
306
234
+ 50
2 8 4
+2 2
306
Answer:
a)
Step-by-step explanation:
The article reported that only 26% of american adults ate 3 or more servings of vegetables per day. We don't know if the subjects were asked how many servings per day they consume (in this case the variable would be quantitative since they would answer with a number) or if they were asked if they ate 3 or more servings per day (in this case the variable would be categorical since they would answer with a yes or no)
Answer:
Let x represents the ounces of first spice.
From the given statements, you draw a table as shown below:
ounces of spice Percentage ounces of salt
First spice x 3% 0.03x
Second spice 175 6% 175(0.06)
Final mixture x+ 175 5% (x+175)(0.05)
Now, to solve for x;
Final spice = First spice + second spice


Subtract 10.5 on both sides we have;

Simplify:

Subtract 0.05x on both sides;

Simplify:

Divide both sides by -0.02, we get;
x = 87.5 ounces
Therefore, 87.5 ounces of spices i.e 3% salt should be added to 175 ounces of a spice that is 6% salt in order to make a spice that is 5% salt
Answer:
2975 foot
Step-by-step explanation:
Let the tower be BC as shown in the diagram.
The distance from a point A on the level ground to the base B of the tower is 5280 feet.
We want to determine the height BC of the tower.
Using trigonometry
Tan θ =Opposite/Adjacent
Tan 29.4°=BC/5280
BC= 5280 X Tan 29.4°
=2975.12709969007
The height of the tower =2975 foot(to the nearest foot)