Answer:
26
Step-by-step explanation:
in a deck of 52 cards there are 52/2 = 26 black cards
so there are 26 ways you can select a black card
Popular Problems Algebra Evaluate Using Scientific Notation (7.1*10^-5)(6.7*10^-6)
(
7.1
⋅
10
−
5
)
(
6.7
⋅
10
−
6
)
Group coefficients together and exponents together to multiply numbers in scientific notation.
(
7.1
⋅
6.7
)
(
10
−
5
⋅
10
−
6
)
Multiply
7.1
by
6.7
.
47.57
(
10
−
5
⋅
10
−
6
)
Use the power rule
a
m
a
n
=
a
m
+
n
to combine exponents.
47.57
⋅
10
−
5
−
6
Subtract
6
from
−
5
.
47.57
⋅
10
−
11
Write
47.57
⋅
10
−
11
in proper scientific notation.
4.757
⋅
10
−
10
x= 1.68596491
So just round that number and you have your answer.
Answer:
9 for part b 40 for part a
Step-by-step explanation:
if u do 5 times the numbers it gives u the product so 45 is 9 times 5 and 40 os 8 times 5
