Answer:
$2(T) + $1.5(S) = $34
Step-by-step explanation:
Let:
tickets be represented by T
Snacks be represented by S
As total amount she paid is $34
The expression would be:
$2(T) + $1.5(S) = $34
i hope it will help you!
Sector area = (central angle / 360) * PI * radius^2
sector area = (210 / 360) * PI * 2.3^2
sector area = (7 / 12) * PI * 5.29
<span><span><span>sector area = 9.6944313302
</span>
</span>
</span>
<span>sector area = 9.7 square meters (rounded)
Source:
http://www.1728.org/radians.htm
</span>
Answer: a. 10%
Step-by-step explanation:
Girls in the class = 40%
Girls play tennis = 25%
Percentage of class play tennis = 40%*25% = 0.4*0.25 = 0.1
Percentage of class play tennis = 10%
Answer:
-9 1/4
Step-by-step explanation:
-5 3/4 - 3 1/2
-5 3/4 - 3 2/4
-9 1/4
Answer:
-2n²
Step-by-step explanation:
Using the image attached:
We see that the second differences (blue ones) are all equal so we conclude that this is a quadratic sequence.
The quadratic sequence has the form:
To find the value of a we just divide second difference ( -4 ) by 2:
Now we have:
Substitute 
and 
into the equation above:
Since 
= -2 and 
= -8 , after simplification we have:
The solution of this system is:
The general term is :
