23. 1/2(18)(10)=90 ft
24. 1/2(9)(6)=27 ft
sorry i don’t know 25
Answer:
210
Step-by-step explanation:
a(b)(-c) (PLUG IN THE NUMBERS)
7(-2)(-15) (multiply 7*-2)
-14(-15) (multiply them together two negatives make a positive)
210
How is anyone supposed to answer this?
Hello,
y²+4y+4=7
==>(y+2)²-7=0
==>(y+2-√7)(y+2+√7)=0
==>y=-2+√7 or y=-2-√7
Answer:
Step-by-step explanation:
ASSUMING the given dimensions are the lengths of the legs
we have an equilateral triangle with base 4 and height
h = √(3² - (4/2)²) = √5
A = ½bh = ½(4)(√5) = 2√5 cm²