Answer:
a^2 + b^2 = c ^2
a = first leg
b = second leg
c = hypothenuse
225 + b^2 = 625
b^2 = 400 -> b = 20 meters
Answer:
danasha is right because
Step-by-step explanation:
Scalene. A scalene triangle has three different angles and none of its sides are equal in length
So 60% of the class are boys, but we're given the number of girl students. We know that the remaining 40% of the class are girls, which equals 12 students. To find out the total number of students in the class we can divide the number we're given into 10%, which we can then multiply to give 100%.
So 40% of the class equals 12 students, we divide by 4 to give 10%, so 12 ÷ 4 = 3. So 10% of the total class is 3 students, we times by 10 to find 100% of the class, so 3 x 10 = 30 students.
Could you show us the graph for this assignment? I could help you if you show me the graph! Thanks!
Answer:
Option B is correct
Step-by-step explanation:
Doug is x years old, so Byron is x+3 years old. The product of their ages would then be x times x+3:
x(x+3) = 40
x2 + 3x = 40
x2 + 3x + 40 = 0
Now, factor the equation:
(x+8)(x-5) = 0
Then, solve for both values of x:
x+8 = 0
x = -8
x-5 = 0
x = 5
As no one can have a negative age, we simply disregard x=-8 as invalid. Therefore, Doug is 5 years old & Byron must be 5+3 - or 8 years old.
<h3>Hope it is helpful...</h3>