Answer:
36
Step-by-step explanation:
The equation would turn out as 23--13
But when there are two negatives, it turns into a positive, creating the equation of 23+13
Then you add to equal 36.
V=π·r²·h
V=3.14(15²)=706.5
V=706.5x15=10597.5
V=10597.5
Answer:
Therefore either a:b = 5:4 or a:b=-5:4
Step-by-step explanation:
ax²-5bx+4a=0
Since the quadratic equation has two real root.
Then b²-4ac>0
Here a= a , b= -5b and c=4a
∴(-5b)²-4.a.4a=0
⇔25b²=16a²
⇔5b=±4a
Therefore either a:b = 5:4 or a:b=-5:4
Answer:
A. 93.3
Step-by-step explanation:
I calculated it logically