Answer:
100m
Step-by-step explanation:
First, find the area of one triangle. Use l*w/2 to do that.
10*5=50
50/2=25
Multiply this by 4 to get the total area
25*4=100
Have a good day!
Answer:
3y+1
Step-by-step explanation:
4y+3-y-2
3y+3-2
3y+1
Change 1/4 to a decimal is an exponent by 4 and the answer would be 0.0039
Answer:
a = -2
Step-by-step explanation:
7a + 10 = 2a
subtract 7a from each side
7a-7a+10 = 2a-7a
10 = -5a
divide by -5
10/-5 = -5a/-5
-2 = a
check
7 (-2) +10 = 2(-2)
-14 + 10 = -4
-4 = -4
Answer:
Na20+H20 -> 2NaOH
Step-by-step explanation: