Answer:
(5, 0 )
Step-by-step explanation:
Given the 2 equations
y = x² - 2x - 15 → (1)
y = 8x - 40 → (2)
Substitute y = x² - 2x - 15 into (2)
x² - 2x - 15 = 8x - 40 ( subtract 8x - 40 from both sides )
x² - 10x + 25 = 0 ← in standard form
(x - 5)² = 0 ← in factored form, thus
x - 5 = 0 ⇒ x = 5
Substitute x = 5 into (2) for corresponding value of y
y = 8(5) - 40 = 40 - 40 = 0
Solution is (5, 0 )
Answer:
selected the correct ones in bold
Step-by-step explanation:
The diameter is used in the formula. The units are always squared. The area can be found when given the diameter by first finding the radius. The area is the distance around the circle. Circumference can be used to find area.
Answer:
7x50 will have one 0 !
Explanation:
I usually just take the zero out and multiply the other numbers (7x5). So, seven times five is 35, then now i add the zero!
Step by step explanation:
7x5∅
7x5=35
Since I took away the zero, I will now add it back after I get the answer.
35←0
350
ONE ZERO!
<u><em>hope i helped you! sorry if its confusing!</em></u>
