The perimeter is the total outside dimensions.
There are 2 sides that are 8 inches and 2 sides that are 5 inches.
Perimeter = 8+8+5+5 = 26 inches.
Answer:
The function is A = 10√r
Step-by-step explanation:
* Lets explain the meaning of direct variation
- The direct variation is a mathematical relationship between two
variables that can be expressed by an equation in which one
variable is equal to a constant times the other
- If Y is in direct variation with x (y ∝ x), then y = kx, where k is the
constant of variation
* Now lets solve the problem
# A is varies directly with the square root of r
- Change the statement above to a mathematical relation
∴ A ∝ √r
- Chang the relation to a function by using a constant k
∴ A = k√r
- To find the value of the constant of variation k substitute A and r
by the given values
∵ r = 16 when A = 40
∵ A = k√r
∴ 40 = k√16 ⇒ simplify the square root
∴ 40 = 4k ⇒ divide both sides by 4 to find the value of k
∴ 10 = k
- The value of the constant of variation is 10
∴ The function describing the relationship of A and r is A = 10√r
First you would take 321 and subtract 5
316
they you would divide by 2
158
there are 158 boys
to find the # of girls take 158 and add 5
163
An acute triangle is a triangle with<span> all three angles</span>acute<span> (less than 90°). An </span>obtuse triangle<span> is one with one </span>obtuse<span> angle (greater than 90°) and two </span>acute<span>angles. Since a </span>triangle's<span> angles must sum to 180°, no</span>triangle<span> can have more than one </span>obtuse<span> angle.</span>