Solution
- 14 x²+7 x+6 x-9 x -6+16
-14 x²+4 x+10
Answer:
Line A: constant of proportionality is 4/3
Step-by-step explanation:
The equation in question is y = (4/3)x, where (4/3) is the constant of proportionality as well s the slope of the line. The only line here that has a slope greater than 1 is the blue line (A).
Answer:side one is 8cm
Side 2 is 8cm
Side 3 is 15 cm
Step-by-step explanation:
The perimeter of a shape is the distance around the shape. The perimeter of a triangle is the sum of the sides of the triangle.
Let x represent the length of side one and side 2. Since they have equal length, the sum of their length is x + x = 2x cm
Side three is one cm shorter then twice the length of side one. This means that the length of side three would be 2x - 1
The perimeter of a triangle is 31cm. Therefore,
2x + 2x - 1 = 31
4x - 1 = 31
4x = 31 + 1 = 32
x = 32/4 = 8 cm
Side three = 2×8 - 1 = 16 - 1 = 15
1 3
----- = ----
5 x
In a proportion, u cross multiply. Take the denominator of the first fraction and multiply it by the numerator of the second fraction. Then take the numerator of the first fraction and multiply it by the denominator of the second fraction.
(5)(3) = (1)(x) ...now multiply
15 = x
and u will see from the answer 1/5 = 3/15 that these are equivalent fractions because that is all proportions are..they are just equivalent fractions.
Here is another one...
2/11 = x/22 .....cross multiply
(11)(x) = (22)(2)
11x = 44
x = 44/11
x = 4
2/11 = 4/22.....equivalent fractions