Answer:
26 rows
Step-by-step explanation:
this is like a rectangle length×width situation.
seats per row = s
number of rows = r
s × r = 884
s = r + 8
so, we can use e.g. the second equation in the first :
(r + 8) × r = 884
r² + 8r = 884
r² + 8r - 884 = 0
the general solution to such a quadratic equation is
x = (-b ± sqrt(b² - 4ac))/(2a)
in our case
x = r
a = 1
b = 8
c = -884
r = (-8 ± sqrt(8² - 4×1×-884))/(2×1) =
= (-8 ± sqrt(64 + 3536))/2 = (-8 ± sqrt(3600))/2 =
= (-8 ± 60)/2 = -4 ± 30
r1 = -4 + 30 = 26
r2 = -4 - 30 = -34
a negative number did not make any sense for the number of rows, so r = 26 is our answer.
Answer:
B
Step-by-step explanation:
Set up the equation
z = 
Plug in the numbers to find the value of k
3 = 
12 = 4k
3 = k
Solve to find the value of z
z = 
z = 
z = 48/9
z = 16/3
Answer:
How many kids are there in the whole school and how many are seventh graders? This question is not complete. Please complete it thank you.
Step-by-step explanation:
Answer:
fglbef bgkfv dfg hti gri efgkrtgm ruigermfui5ygmruf thiptofktuigkrlv
Step-by-step explanation:
<span>1. Evaluate (2-2^3)^3-4x(-4)
</span>
<span>
</span>
<span>
2. Compute
-453+(-5.34)=-453-5.34
=-458.34
-56+27.4=-28.6
3. Use <, >, or =
9 > -8
-12 < -3
-4 > -7</span>
