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allochka39001 [22]
4 years ago
14

Can someone explain/show me how to do this?

Mathematics
1 answer:
grandymaker [24]4 years ago
8 0
V = (-7,-4)

8v would be 8 times both numbers

8v = (8*-7, 8*-4)

8v = (-56, -36)

magnitude = square root( -56^2 + -36^2)
 = sqrt(3136 + 1296)
= sqrt(4432 )
 = 4 sqrt(277)

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What is x/(-11)= -3​
Zanzabum

Answer:

x=33

Step-by-step explanation:

x/(-11)=-3

First multiply: x/(-11)*(-11)=-3*(-11)

Any two negative numbers that are multiplied equal a positive so: x=33

3 0
3 years ago
Show me how to solve -6+x/4= -5
schepotkina [342]
Multiply 4(-5) then add 6 and theres your X

7 0
3 years ago
Find the area of the regular hexagon.
NeTakaya

Answer:

1) The area of the regular hexagon is approximately 11.256 unit²

2) The coordinates of the center is (2, 3)

3) The base length is approximately 2.08 units

4) The height of the hexagon is approximately 3.61 units

Step-by-step explanation:

1) The length, lₐ, of the apothem is given as follows;

l_a = \sqrt{\left (y_{2}-y_{1}  \right )^{2}+\left (x_{2}-x_{1}  \right )^{2}}

Therefore, for the apothem having coordinates, (2, 3), and (3, 1.5), we have;

l_a = \sqrt{\left (3-1.5  \right )^{2}+\left (2-3  \right )^{2}} = \sqrt{1.5^2 + (-1)^2} =\sqrt{3.25}

The length of half half of one side, S/2 = a × tan(30°) = √(3.25)/√3

The length of the base = 2 × √(3.25)/√3 ≈ 2.082 units

The perimeter, P = 6 × 2× √(3.25)/√3

The area, A = 1/2 × P × a = 1/2 × 6 × 2 × √(3.25)/√3 × √3.25 = (13·√3)/2

A = (13·√3)/2 unit²

The area of the regular hexagon, A =  (13·√3)/2 unit² ≈ 11.256 unit²

2) The coordinates of the center = (2, 3)

3) The base, 'b', length by Pythagorean theorem is given as follows;

b = √(a² + (S/2)²) = √((√(3.25))² + (√(3.25)/√3)²) = √(3.25 + 3.25/3) = √(13/3) = (√39)/3

The base length, b = (√39)/3 units ≈ 2.08 units

4) The height of the hexagon, h = 2 × The length of the apothem, lₐ

The length, lₐ, of the apothem is given as follows;

l_a = \sqrt{\left (y_{2}-y_{1}  \right )^{2}+\left (x_{2}-x_{1}  \right )^{2}}

Given the apothem coordinates, (2, 3), and (3, 1.5), we have;

l_a = \sqrt{\left (3-1.5  \right )^{2}+\left (2-3  \right )^{2}} = \sqrt{1.5^2 + (-1)^2} =\sqrt{3.25}

The height of the hexagon, h = 2 × √3.25 units ≈ 3.61 units.

3 0
3 years ago
Which ordered pairs in the form (x,y) are solutions to the equation 7 x - 5y = 28?
Tcecarenko [31]

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3 years ago
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<span> this is the best answer
D. Alternative practices can lead to a decrease in pollution, erosion, and damage to waterways</span>
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4 years ago
Read 2 more answers
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