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trasher [3.6K]
2 years ago
9

Is the cross multiplication and . multiplication of vectors the same​

Mathematics
1 answer:
Nonamiya [84]2 years ago
7 0

Answer:

no

Step-by-step explanation:

they are different

a.b = |a|.|b|cos x

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Customers of a phone company can choose between two service plans for long distance calls. The first plan has a $24 monthly fee
JulsSmile [24]

Answer:

600 minutes

Step-by-step explanation:

If we write both situations as an equation, we get:

y1 = 24 + 0.15x

<em>y1 </em><em>:</em><em> </em><em>total </em><em>cost </em><em>paid </em><em>in </em><em>first </em><em>plan</em>

<em>x </em><em>:</em><em> </em><em>total minutes </em><em>of </em><em>calls</em>

y2 = 0.19x

<em>y2 </em><em>:</em><em> </em><em>total </em><em>cost </em><em>in </em><em>second </em><em>plan</em>

<em>x:</em><em> </em><em>total </em><em>min</em><em>utes </em><em>of </em><em>call</em>

We are now looking for the situation where the total cost in the two plans is equal, so

y1 = y2

this gives

24 + 0.15x = 0.19x

<=> 0.04x = 24

<=> x = 600

7 0
3 years ago
Solve for x² in x²-3x+2=0​
Naddika [18.5K]

x^2-3x+2=0\\x^2-x-2x+2=0\\x(x-1)-2(x-1)=0\\(x-2)(x-1)=0\\x=2 \vee x=1\\\\x^2=4 \vee x^2=1

6 0
3 years ago
Read 2 more answers
A bag contains 4 red marbles,
GuDViN [60]

Step-by-step explanation:

4+6+5=15

15-1=14

2/14

1/7

4 0
3 years ago
Read 2 more answers
What is 140 rounded to the nearest hundredth
muminat

I mean, there is no decimal place, so you can’t determine to the nearest hundredth place.

For the hundreds place, it would round to 100, though.

7 0
2 years ago
Ill mark brainliest pl pls help me
blondinia [14]

Answer:

1. e

2. c

Step-by-step explanation:

1. e. table

The question displays a table that organizes the data

2. c

When you compare the x and y values of a relationship, in this case the b and t variables, you use a ratio.

8 0
3 years ago
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