Answer:
The number of pennies in the bank is 42
Step-by-step explanation:
Solution:
Given that ratio of pennies to quarters in a piggy bank is 14 : 3
Let 14x be the number of pennies in a piggy bank
Let 3x be the number of quarters in the piggy bank
To find: number of pennies
Given that there are 51 quarters
number of pennies in piggy bank + number of quarters in piggy bank = 51
14x + 3x = 51
17x = 51
x = 3
number of pennies = 14x = 14(3) = 42
Thus the number of pennies in the bank is 42
Answer:
Step-by-step explanation:
eq. of directrix is y=4 or y-4=0
perpendicular distance of (x,y) from directrix =distance of (x,y) from focus (-3,2)

Answer:
B.
Step-by-step explanation:
Because 14/2 is 7
10/5 is 2 as well
We can determine from their equations whether two lines are parallel by comparing their slopes. If the slopes are the same and the y-intercepts are different, the lines are parallel.
Unlike parallel lines, perpendicular lines do intersect. Their intersection forms a right, or 90-degree, angle.