Answer:
x = -8, x = -4
Step-by-step explanation:
Adding a number and its opposite gives a result of 0. That is, x+8 will be 0 when x = -8, because -8 +8 = 0.
Likewise, x+4 will be zero when x = -4, because -4 +4 = 0.
The values of x that make (x+8)(x+4) = 0 are -8 and -4.
3.75 is 3.74 rounded to the nearest hundredth
Answer:
the answer is 488 of the composite figure is 488
Adding/subtracting fractions requires that they have the same common denominator. In this case they already have 8 in both denominators. Once they have a common denominator addition/subtraction can be carried out as follows:
rule: a/c+b/c=(a+b)/c... in this case
3/8+2/8
(3+2)/8
5/8
Answer:
l = 2.25 cm
Step-by-step explanation:
given l is inversely proportional to w² then the equation relating them is
l =
← k is the constant of proportion
(i)
to find k use the condition w = 1.5 , l = 16 , then
16 =
=
( multiply both sides by 2.25 )
36 = k
l =
← equation of proportion
(ii)
when w = 4 , then
l =
=
= 2.25 cm