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Delicious77 [7]
3 years ago
13

How your dayyyyyyy every body

Mathematics
1 answer:
9966 [12]3 years ago
6 0
Boring i have sm hw to do
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What times what equals 21 but adds up to -22
attashe74 [19]
Let "what" and "what" be A and B

Put this in an algebraic equation
A * B = 21
A + B = -22

A must = -21 and B must = -1   , this is because two negatives multiply to make a positive

A + B = -22    ,  -21 +-1 = -22 

4 0
3 years ago
Somebody help me with this please .
erastova [34]

Step-by-step explanation:

12. Cos 60° = 8/c

0,5 = 8/c

0,5 c = 8

c = 16

D² = V16²-8²

= V256-64

=V192 = V16×12 = 4V12

= 4V4×3 = 8V3

13. Cos 30° = 6/b

V3/2 = 6/b

V3 b = 12

b = 12/V3

b/Sin B = a /sin A

b/Sin90° = 6/ sin 60°

<u>b</u> = <u> </u><u> </u><u> </u><u>6</u><u> </u><u> </u><u> </u>

1 V3/2

b× <u>V3</u> = 6

2

b = 6× 2/V3

= 12/V3

8 0
4 years ago
If one bottle of soda costs .99, how much do three bottles cost? how much do they cost with 5% tax added on?
bija089 [108]
3 sodas cost $2.97 +.15 tax total $3.12
8 0
3 years ago
What goes into 26.1 and 3.6
chubhunter [2.5K]
3.6 goes into both of them. Hope this helps
4 0
3 years ago
Lin ran 29 meters in 10 seconds. she ran at a constant speed. At this rate, how far can she run in 1 minute
scoundrel [369]

Answer:

2.9 per second

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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