80 100
Tanya measured an object's mass and
volume and calculated its density to be
18 g/cm'. The object's actual density was
15 g/cm? What is Tanya's percent error?
17%
B 20%
C 30%
D83%
A
trend
ear at first and
on nonlinear

x = 12

y = 15

step-by-step explanation:

a reflection across the x-axis , followed by the by a reflection across the y-axis , and then a scale dilation of 0.5 .

it’s supposed to be -4+45=41

step-by-step explanation:

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for