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3 years ago

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What is the Square root of -3

1 answer:

zavuch27 [327]3 years ago

3 0

The square root of -3 is 1.73205081

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Luke is swimming in a river with a current flowing west to east at a constant speed of 3.5 meters/second. Assume that Luke's wat

Nitella [24]

Decompose each velocity in its i and j - coordinates.

1) River's velocity

3.5 m/s, west fo east = 3.5i + 0j

2) Luke's velocity

5m/s, 60° east of north

5* sin(60°) i + 5*cos(60°) j = 4.33 i + 2.5 j

3) Resultant velocity

[3.5i + 0j] + [4.33i + 2.5j] = 7.83i + 2.5j

resultant speed = √[ (7.83)^2 + (2.5)^2 ] = 8.22 m/s

angle = arctan(2.5 / 7.83) = 17.7° north of east (equal to 72.3° east of north).

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4 years ago

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A store is selling five cans of tomato sauce for $5.25. What is the unit price? unit price = total price ÷ number of units per p

aleksklad [387]

Answer: Option A

$P = \$\ 1.05$

Step-by-step explanation:

If we have 5 cans of ketchup they cost $ 5.25. Then the unit price of cans is what each can costs individually.

The unit price should then be less than $ 5.25, and that is the price for 5 cans and we want to know the price for just one can of ketchup.

Then to calculate the price of each can divide the price of the 5 cans by 5.

$P = \frac{5.25}{5}$

$P = \$\ 1.05$

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3 years ago

I’m booored can some one talk to me pls

Alborosie

Answer:

hullo

Step-by-step explanation:

3 0

3 years ago

Drag numbers to complete the table for missing values of x, x2, and x3.

natka813 [3]

Answer:

Values are:

x x²

10 100

5

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3 years ago

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Two triangles are similar.The the smaller triangle has side 10,20 and 15 units the larger triangles longest side is 52 units.Wha

Oliga [24]

Answer: The perimeter of the largest triangle = 117 units.

Step-by-step explanation:

Sides of smaller triangle = 10,20 and 15 units

Longest side = 20 units

Longest side of larger triangle = 52 units

Sides of two similar triangles are proportional.

Let k be proportionality constant.

$k=\dfrac{\text{Length in larger triangle}}{\text{Length in smaller triangle}}$

$k=\dfrac{52}{20}\\\\\Rightarrow\ k=\dfrac{13}{5}$

Length of other two sides,

$10\times\dfrac{13}{5}, 15\times\dfrac{13}{5}\ i.e.\ 26\text{ units}, 39\text{ units.}$

So sides of larger triangle = 52 units, 26 units , 39 units

Perimeter of largest triangle = 52 +26+39 = 117 units

Hence, the perimeter of the largest triangle = 117 units.

4 0

3 years ago