Two metal bolt are similar in shape and have diameter of 5mm and 15mm .find the ratio of their masses and the smaller bolts mass is 12g .find the mass of the larger bolt​

b.an increase in a causes b to decrease

i need more info. are you looked to see there mph? how much they deliver? how far they go?

step-by-step explanation:

↓↓↓↓↓↓↓↓↓

step-by-step explanation:

this is a parabola.

answer: c

substitute in the values.

for a:

f(0) = 0 + 9

f(0) = 9

a is a solution.

for b:

f(7) = 14 + 9

f(7) = 23

b is a solution.

for c:

f (3) = 6 + 9

f(3) = 15

c is not a solution. it's supposed to be 14.

for d:

f(2) = 4 + 9

f(2)= 13

d is a solution.