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Helen [10]
4 years ago
13

If 6 tomatoes are for $4, how much does 15 tomatoes cost?

Mathematics
1 answer:
Mariana [72]4 years ago
3 0
$22.50 is the cost of 15 tomatoes
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What is the projection of (4,4) onto (3,1)?
Ostrovityanka [42]
Let's define the vectors:
 U = (4.4)
 V = (3.1)
 The projection of U into V is proportional to V
 The way to calculate it is the following:
 Proy v U = [(U.V) / | V | ^ 2] V
 Where U.V is the point product of the vectors, | V | ^ 2 is the magnitude of the vector V squared and all that operation by V which is the vector.
 We have then:
 U.V Product:
 U.V = (4,4) * (3,1)
 U.V = 4 * 3 + 4 * 1
 U.V = 12 + 4
 U.V = 16
 Magnitude of vector V:
 lVl = root ((3) ^ 2 + (1) ^ 2)
 lVl = root (9 + 1)
 lVl = root (10)
 Substituting in the formula we have:
 Proy v U = [(16) / (root (10)) ^ 2] (3, 1)
 Proy v U = [16/10] (3, 1)
 Proy v U = [1.6] (3, 1)
 Proy v U = [1.6] (3, 1)
 Proy v U = (4.8, 1.6)

 Answer:
 the projection of (4,4) onto (3,1) is:
 Proy v U = (4.8, 1.6)
6 0
3 years ago
Do you know the answer ?
SIZIF [17.4K]

draw in the line, here are the points

6 0
3 years ago
Niccola travels at an average speed of 40 mph for 50 miles.
Galina-37 [17]

Answer:

Step-by-step explanation:

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5 0
3 years ago
Marie you and Connor are doing yardwork for a neighbor they make a total of $303.56 since Connor works more hours than Maria Con
Keith_Richards [23]
303.56 x 31%=94.10
303.56-94.10= 209.46

209.46-94.10 =115.36

Connor makes 115.36 more than Maria
4 0
4 years ago
What is the square root of n multiplied by 3 square root of n
algol13
When you multiply square root of n by another square root of n it just becomes n. So, the answer is 3n

6 0
3 years ago
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