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Rudik [331]
3 years ago
15

Find the area of an equilateral triangle whose value is 18 cm​

Mathematics
2 answers:
rusak2 [61]3 years ago
3 0

Answer:

18 + 18 + 18 = 18 \times 3 = 54

Step-by-step explanation:

I ain't sure but it might help you out:D

muminat3 years ago
3 0

Answer:

140.3 cm²

Step-by-step explanation:

area of an equilateral triangle

=   \frac{\sqrt{3} }{4}  {a}^{2}

where a is the side of the triangle

= \frac{ \sqrt{3} }{4}  \times  {18}^{2}  \\  = 140.3 \: cm {}^{2}

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To be sure of getting a pair of socks of the same color, you must place yourself in the worst position.

When you take out socks without lookong (radomly), the worst scenary is that the first time you take out a sock of a color and in the second fime you take out a sock of different color. Then, the next time (the third time) you necessarily take a sock that match one of the two taken out previously, and so have a pair.

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3 years ago
Convert 2x–8y=32 into standard form
DENIUS [597]
Y=-4x + 1/4x is the answer
7 0
3 years ago
Write an equation for a line perpendicular to y = -5x – 4 and passing through the point (15,5)
stiv31 [10]

Answer:

y=1/5x+2

Step-by-step explanation:

In perpendicular lines the slopes are negative reciprocals so the slope of other line is 1/5x

And they intersect at (15,5) to find the y intercept(b)

y=1/5x+b

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4 0
3 years ago
Been stuck on these last 2 questions. can anybody help? thanks in advance!
Maurinko [17]

The equation that passes through the point (7, -2) and (11, 5) is y = 4/7x - 9

Equation of the line:

The standard form of the equation of the line is written as

y = mx + b

here

x and y represents the coordinates of the equation

m refers the slope of the equation

b refers the y intercept of the equation

Given,

Here we have the points (7, -2) and (11, 5).

Now we have to find the equation that passes through this points.

If you want to find the equation of the line, we have to find the slope and the intercept of the line.

The slope of the line is calculated by using the given point (7, -2) and (11, 5),

=> m = (11 - 7) / ( 5 - (-2))

=> m = 4/7

Now, we have to use the slope and the point (11, 5) to find the value of y intercept of the equation,

=> 5 = (4/7) (11) + b

=> 35 = 44 + b

=> b = -9

Therefore, the equation that passes through the points is y = 4/7x - 9

To know more about equation of the line here.

brainly.com/question/21511618

#SPJ1

4 0
1 year ago
PLEASE HELP AS SOON AS POSSIBLE!!
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5. 2.3705* 10^35
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8. 6^ 36
9. 2.425674* 10^30
10. 1.1556* 10^13
7 0
3 years ago
Read 2 more answers
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