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dedylja [7]
3 years ago
14

What percentage of the area under a normal curve is within 1, 2, and 3 standard deviations of the mean

Mathematics
1 answer:
Lemur [1.5K]3 years ago
7 0

Answer:

You need to have a labotomy sir

Step-by-step explanation:

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Find the value of (–3⁄8) × (+8⁄15).
Otrada [13]
<h2>-1/5</h2>

Step-by-step explanation:

\frac{-3}{8} × \frac{+8}{15}

= \frac{-1}{5}

8 0
3 years ago
CAN SOMEONE HELP ME OUT, PLEASE AND THANK YOU
Elza [17]

Answer:

120 magazines

Step-by-step explanation:

to get how many 1/7 is you need to divide 120 by 7

210/7=30

now you need to know what 4 sevenths is

30x4=120

so 4/7 of the magazines is 120

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5 0
2 years ago
Need help with question 1 2 and 3 read the question on the image carefully!
agasfer [191]
Yellow-36, White-60
Yellow-45, White-75
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4 0
3 years ago
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1, 3/2 , 9,4 ...<br> Find the 9th term HELP ASAP
yarga [219]
This is a geometric sequence since there is a common ratio between each term. In this case, multiplying the previous term in the sequence by
2
3
2
3
gives the next term. In other words,
a
n
=
a
1
⋅
r
n
−
1
a
n
=
a
1
⋅
r
n
-
1
.
Geometric Sequence:
r
=
2
3
r
=
2
3
This is the form of a geometric sequence.
a
n
=
a
1
r
n
−
1
a
n
=
a
1
r
n
-
1
Substitute in the values of
a
1
=
1
2
a
1
=
1
2
and
r
=
2
3
r
=
2
3
.
a
n
=
(
1
2
)
⋅
(
2
3
)
n
−
1
a
n
=
(
1
2
)
⋅
(
2
3
)
n
-
1
Apply the product rule to
2
3
2
3
.
a
n
=
1
2
⋅
2
n
−
1
3
n
−
1
a
n
=
1
2
⋅
2
n
-
1
3
n
-
1
Multiply
1
2
1
2
and
2
n
−
1
3
n
−
1
2
n
-
1
3
n
-
1
.
a
n
=
2
n
−
1
2
⋅
3
n
−
1
a
n
=
2
n
-
1
2
⋅
3
n
-
1
Cancel the common factor of
2
n
−
1
2
n
-
1
and
2
2
.
Tap for more steps...
a
n
=
2
n
−
2
3
n
−
1
a
n
=
2
n
-
2
3
n
-
1
Substitute in the value of
n
n
to find the
n
n
th term.
a
5
=
2
(
5
)
−
2
3
(
5
)
−
1
a
5
=
2
(
5
)
-
2
3
(
5
)
-
1
Simplify the numerator.
Tap for more steps...
a
5
=
8
3
(
5
)
−
1
a
5
=
8
3
(
5
)
-
1
Simplify the denominator.
Tap for more steps...
a
5
=
8
81
a
5
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81
4 0
3 years ago
kate is making a recipe that calls for 1 2/3 cups of sugar. she wants to cut the recipe in half. how much sugar should kate use
denis-greek [22]

she should use 5 thirds of a cup

8 0
3 years ago
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