MSH! D Answers

D Answers

DAM

1) 40 hm= 400 dam=4000 m

DECA-

1) 1 decacards

DECAGON

1) 7

2) 35

DECI-

1) 40 decibel

DECIMAL

1) 5.5

2) to the right of 25, ie. 25.

DEDUCTION

1) $115.90

2) $269.23

DEGREE

DENOMINATOR

1) 4, 3, 9, 15

2) 3/2 & 1/2

DEPENDENT

1) b and c

DETERMINE

1) 2

DIAGONAL

polygon	sides	diagonals from 1 vertex	diagonals
triangle	3	0	0
quadrilateral	4	1	2
pentagon	5	2	5
hexagon	6	3	9
heptagon	7	4	14
octagon	8	5	20

Do you see any patterns here? Describe the patterns in words or symbols. Ans. The number of diagonals from 1 vertex is three less than the number of sides: d = s - 3. The total number of diagonals is 1 + 2 + 3 + 4 + ... + (s - 3) + (s - 3). List the number of new diagonals from each vertex to verify this. This sum is the total number of diagonals. This sum is

because this equals s - 3 more than the sum of the first s - 3 counting numbers.

DIAMETER

1) 8 cm

DIGIT

1) 2, 13, 24, 35, 46, 57, 68, 79

2) 1

3) 0

DIMENSION

1) 4"

2) 8 cm

DIMINISH

1) 5

DISCRIMINANT

1) -8

2) 2 real roots, because the discriminant is +29

DISTANCE

1) 200 miles

or about 10.198

DIVISIBILITY TEST

1) Is the sum of the digits of a number divisible by 3? If so, the number is divisible by 3.

DIVISIBLE

1) no, yes, no

2) 210, or 420, or 630, or ...

DODECAGON

1) 11 cm

DOUBLE

1) 6x

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