Answer:
the second equation, 4 x (-3) + 10 ÷ 5
Step-by-step explanation:
this is becasue of BODMAS, Brackets, of, division, multiply, addition, subtraction.
you have to solve the equation in this order of the operations
Answer:
16
Step-by-step explanation:
put (2) in for (a) and (6) in for (b)
add the two numbers in parentheses then multiply the product by (2)
78 = -2(m + 3) + m
78 = -2m - 6 + m
78 = -m - 6 |add 6 to both sides
84 = -m
m = -84
D
add 49 to both sides to get x by itself
x^2 - 49 = 0
+49 +49
square root both sides to get rid of the square
√x^2 = √49
x= ±7
since both -7 and 7 are square roots to 49, it’s D
1 1/2 feet can be written as 1.5 feet and 20 years * 1.5 feet per year = 30 feet. Assuming the maple tree started at 0 feet, it will be 30 feet tall in 20 years.