Counting the straight sides gives you 23 units and using the distance formula on the bottom side gives you about 11.18 units. 23+11.18=34.18 and round that to the nearest tenth to get the answer of 34.2 units.
I was stuck on the same thing in my class test. I ended up failing but if I get the answers to it I’ll totally send them to you!!!
If you have three quarters and each is a value of 25¢ you add and get 75¢ and you add the $4 which gives you $4.75
Just multiply each times 0.15 :)
$35.15 = $5.2725
&27.00 = $4.05
Answer:
see explanation
Step-by-step explanation:
A
25x² - 40x + 16 ← is a perfect square of the form
(ax - b)² = a²x² - 2abx + b²
Comparing the coefficients of like terms in the 2 expressions
a² = 25 ⇒ a = 5, b² = 16 ⇒ b = 4
and 2 × 5 × 4 = 40, thus
25x² - 40x + 16 = (5x - 4)²
The side of the square = 5x - 4
B
25x² - 16y² ← is a difference of squares and factors in general as
a² - b² = (a - b)(a + b), thus
25x² - 16y²
= (5x)² - (4y)² = (5x - 4y)(5x + 4y)
Dimensions of rectangle are 5x - 4 and 5x + 4
