Answer: f(8) = 6.25(1.1)^7 ; f(8) = 12.179
Step-by-step explanation: (I got it right on the test)
(1, 6.25), (2, 6.875), (3, 7.5625), (4, 8.31875)
r= 1.1
f(1) = 6.25 / starting number
1. Since it is multiplying each number by 1.1 it is using the Geometric Explicit Formula:
f(n)= f(1) x r ^n-1
f(8) = 6.25 x 1.1 ^(8-1)
f(8) = 6.25 x 1.1 ^7
f(8) = 6.25 x 1.9487171
f(8) = 12.179
Answer:
20%
Step-by-step explanation:
as we add 10 +25 = 35
so if we subract 40 from 35 it is 5 so mangoes are 5
5
_ × 100 =20%
25
Answer:
7/1 or 7
Step-by-step explanation:
because you rise (vertically) seven and run (horizontally) 1, so 7/1 but simplified it's just 7 so either is valid.
Explanation: 3 x 2 + 10 x + 3 We can Split the Middle Term of this expression to factorise it. In this technique, if we have to factorise an expression like a x 2 + b x + c , we need to think of 2 numbers such that: N 1 ⋅ N 2 = a ⋅ c = 3 ⋅ 3 = 9 and, N 1 + N 2 = b = 10 After trying out a few numbers we get: N 1 = 9 and N 2 = 1 9 ⋅ 1 = 9 , and 9 + ( 1 ) = 10 3 x 2 + 10 x + 3 = 3 x 2 + 9 x + 1 x + 3 = 3 x ( x + 3 ) + 1 ( x + 3 ) ( 3 x + 1 ) ( x + 3 ) is the factorised form for the expression.
c
, we need to think of 2 numbers such that:
N
1
⋅
N
2
=
a
⋅
c
=
3
⋅
3
=
9
and,
N
1
+
N
2
=
b
=
10
After trying out a few numbers we get:
N
1
=
9
and
N
2
=
1
9
⋅
1
=
9
, and
9
+
(
1
)
=
10
3
x
2
+
10
x
+
3
=
3
x
2
+
9
x
+
1
x
+
3
=
3
x
(
x
+
3
)
+
1
(
x
+
3
)
(
3
x
+
1
)
(
x
+
3
)
is the factorised form for the expression.
Mean- 69.66
median-71.5
range-16
mode-74
