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3 years ago

15

Sarah created a pattern her rule was and for all the numbers and Sarah's pattern were add three of the numbers and Sarah's patte

rn were less than 10 what was the starting number for Sarah's pattern

2 answers:

yulyashka [42]3 years ago

8 0

It's 3 because it doesn't Have 10 in it.

Vanyuwa [196]3 years ago

3 0

The answer is 3 because 3 does not have the number 10 in it could also be 4,6,7,8,9

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ser-zykov [4K]

Answer:

perimeter is 36 inches and the area is 32 square inches

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2 years ago

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Which expression is equivalent to 4x+3x+4-2x

kvv77 [185]

Answer:

5x+ 4

Step-by-step explanation:

First, put all of the x variables together. So 3x+4x=7x

7x + 4 -2x Since the 2x is negative you can subtract it from 7x and get 5x.

you can not add the four to the 5x because it does not have a matching variable.

So, you have: 5x+ 4

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3 years ago

Explain why 2-81273-05213-8 is an invalid UPC number.

sammy [17]

Answer:

Part 1) Is not a valid code

Part 2) The last digit should be 6 in order to make it a valid code

Step-by-step explanation:

we have

2-81273-05213-8

we know that

The last number is the check digit (8)

<em>Verify the UPC number</em>

step 1

Sum the digits in the odd positions, starting at the left

so

2+1+7+0+2+3=15

step 2

Multiply the answer in step 1 by 3

15(3)=45

step 3

Sum the numbers in the even positions, ignoring the last (12th) digit because that is the check digit that you are verifying

Do not multiply this number by 3.

8+2+3+5+1=19

step 4

Add the results from steps 2 and 3

45+19=64

step 5

Subtract the number in step 4 from the next higher multiple of 10. In this example, the next multiple of 10 after 64 is 70, so subtract 64 from 70:

70-64=6

This number is not equal to the check digit (8)

therefore

Is not a valid code

The last digit should be 6 in order to make it a valid code

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4 years ago

In a probability experiment, a painted cube is rolled once. One side of the cube is painted

Natalija [7]

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3 years ago

2 boats leave the same port at the same time.

GarryVolchara [31]

Answer: Hi!

First, if you think that a compass has degrees as units, then N50E would be

50 degrees from north in the direction of the east, so if you put our 0 in east and count counterclockwise this will be an angle of 40 degrees.

If you think north has te Y axis positive direction, and east as the X axis positive direction. then the first boat has an angle of 40° counterclockwise from the +x

so the velocity in y is Vy=30mph*sin(40°) and in x is Vx= 30mph*cos(40°)

then the total displacement will be 22.98m to east and 19.28 north

the second one goes to s 70 e, so using the same notation as before, you can write this has -20° degrees count counterclockwise.

so decomposing the velocity will give us

Vy = 26*sin(-20°) and the displacement in Y is -8.89m

Vx = 26*cos(-20°) and the displacement in X is 24.43m

so the distance between the boats in y will be 19.28m - (-8.99)m = 28.27m

and in x: 24.43m - 22.98m = 1.45m

and the total distance is $D^{2} = 1.45^{2} + 28.27^{2}$

so D = 28.30 m

4 0

3 years ago