4 years ago

What is the distance between points A and B?

Mathematics

1 answer:

g100num [7]4 years ago

6 0

Answer: lol idk the answer but im taking the same test

Step-by-step explanation:

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81 students is 90â% of how manyâ students?

Lelu [443]

81÷s = 90÷100
s= 81 x 100 ÷ 90
s= 90
81 students is 90% of 90 students

4 0

3 years ago

Let L be the line with parametric equations x=2+t, y=1-t, z=1+3t.Let v=(1,2,0).Find vectors w1 and w2 such that v= w1 + w2, and

charle [14.2K]

Answer:

w1 = (-1/11, 1/11, -3/11)

w2 = (12/11, 21/11, 3/11)

Step-by-step explanation:

Direction ratio of w1 = Direction ratio of L (because parallel) = K+(1, -1, 3)

Let <a,b,c> be direction ratio of w2.

Then, <a,b,c>. <1,-1,3> = 0

a-b+3c = 0

v = w1 + w2

(1, 2, 0) = k(1, -1, 3) + (a, b, c)

a + k = 1

b - K = 2

c - 3k = 0

Solving 4 equations, a = 12/11, b= 21/11, c = 3/11, k=-1/11

So, w1 = -1/11(1, -1 ,3) = (-1/11, 1/11, -3/11)

w2 = (12/11, 21/11, 3/11)

6 0

3 years ago

Please help me on this!

Nesterboy [21]

Answer:

linear

Step-by-step explanation:

8 0

3 years ago

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There is 1/ 3 gallon of water in a 3-gallon container. What fraction of the container is filled?

kolbaska11 [484]

Step-by-step explanation:

2/3 gallons is empty

1/3 gallons is filled

3*1/3= 1

1 gallon filled

6 0

3 years ago

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One type of insect is 0.0052 meters long. What is the lenght in scientific notation

Ket [755]

Answer:

5.2 × $10^{-3}$

Step-by-step explanation:

a number in scientific notation is expressed as

a × $10^{n}$

where 1 ≤ a < 10 and n is an integer

write 0.0052 as a number between 1 and 10, that is 5.2

we have to the move the decimal point 3 places to the left to retain it's value

3 places left means n is - 3

0.0052 = 5.2 × $10^{-3}$

8 0

3 years ago