The answer is B 10(3+4) since 10 times 3 is 30 and 10 times 4 is 40 and this is 30+40
True because 16 + 23 = 39 and the product of the other numbers is negative
Answer:
YES
Step-by-step explanation:
Explicit rules for arithmetic sequences follow the format
a
n
=
d
(
n
−
1
)
+
a
1
(or with a
f
(
n
)
instead of an
a
n
), where
d
represents the common difference and
a
1
represents the first term
To find the first 4 terms, plug
1
,
2
,
3
,
4
in for
n
:
f
(
1
)
=
7
(
1
−
1
)
−
10
f
(
1
)
=
7
(
0
)
−
10
f
(
1
)
=
0
−
10
f
(
1
)
=
−
10
Do the same thing for
2
,
3
,
4
The first four terms are
−
10
,
−
3
,
4
,
11
You multiply 1.4x10= 14 and 7x10=70 then divide both by 14 and get 1/5 <span />
<span>Since 1' = 12'', so the scale 1/4'' to 1' is 1/4'' to 12'', or, multiplying both sides by 4, 1 to 48. </span>
<span>Convert all dimensions given from foot/inches to inches, then scale them down, dividing by 48. </span>
10ft 6in=10*12+6=126+6=132 dividing by 48. 132/48=2.75/48=0.0572*1000=57.2 inches
<span>18' 8'' = 18 * 12 + 8 inches = 216 + 8 = 224 inches. Dividing by 48: 224/48 = 4 32/48 = 4 2/3 inch*1000=66.6
</span>