Answer:
z = 42
Step-by-step explanation:
The question can be answered in 2 steps as follows:
Step 1: Calculation of the constant of the variation
The equation for the joint variation can be given as follows:
z = cxy ................... (1)
Where;
z = 60
c = constant = ?
x = 5
y = 6
Substituting the values into equation (1) and solve c, we have:
60 = c * 5 * 6
60 = c * 30
c = 60 / 30
c = 2
Step 2: find z when x = 7 and y = 3
Since from Step 1 c = 2, we now use equation (1) and substitute the values into it to find z as follows:
z = 2 * 7 * 3
z = 42
Answer:
The 4th one cuz it’s a percent
Step-by-step explanation:
Based on the chart on the left, you can see there are 2 dragonflies with the lengths of 3 1/4 inches. Therefore, 2 marks should be made over the 3 1/4 inches spot on the line plot.
Hope this helps
Brainliest would be appreciated
-AaronWiseIsBae
Answer:
x⁴ - x³ + 2x - 6
Step-by-step explanation:
Apparently i cannot write the equation needed so we will call it r(x) and the 2 given equations, a(x) and b(x) respectively
r(x) is the same as a(x) - b(x)
a(x) - b(x)
= x⁴ - 3x² + 5x - 7 -(x³ - 3x² + 3x -1)
= x⁴- x³ + (- 3x² + 3x²) + (5x - 3x) + (- 7 + 1)
= x⁴ - x³ + 2x - 6
