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Blizzard [7]
3 years ago
14

Find a · b. |a| = 4, |b| = 7, the angle between a and b is 2π/3

Mathematics
1 answer:
galben [10]3 years ago
5 0

Answer:

-14

Step-by-step explanation:

a·b = |a|×|b|×cos(angle between them)

= 4×7×(-1/2)

= -14

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Isabel’s team won their baseball game and scored 60 points total . If Isabel scored 12 of the points and everyone else scored 8
Studentka2010 [4]

Answer:

6 people on her team

Step-by-step explanation:

60-12= 48

48/8= 6

6 0
3 years ago
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Is 3 x 5/6:<br> A: 15/6<br> B:15/18<br><br> ????
kiruha [24]

Answer:

3 x 5/6 is 2.5, so 15/6

Step-by-step explanation:

3/1 x 5/6

6 0
3 years ago
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Answer pleaseee :)))
Mrac [35]

Answer:

m∠XYZ=106°, m∠XWY = 53°

Step-by-step explanation:

XYZ is a central angle, its arc is XY = 106°. so m∠XYZ = mXY=106°

XWY is an inscribed angle, its arc XY = 106°, so m∠XWY =1/2 mXY=1/2*106=

= 53°

4 0
3 years ago
PLS HELP ASAP
Zanzabum

Answer:

2 x 2 x 2 x 2 = 16 possible outcomes

You have two sides of a coin, you flip 4 coins.

Now we just multiply 2 by itself 4 times.

4 0
3 years ago
In how many ways can 4 books be arranged on a shelf if there are 8 books to choose from?
dsp73

Answer:

1680 ways

Step-by-step explanation:

By using the formula for permutation, which is nPr=n!/(n-r)!,

8P4=8!/(8-4)!

=8!/4!

=8×7×6×5

=1680

Or if you just want to use the multiplication rule (which is simpler).

8×7×6×5=1680

8 0
3 years ago
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