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3 years ago

Someone please help me with this

Mathematics

1 answer:

Bas_tet [7]3 years ago

4 0

Answer:

BE = 3 in; EF = 2 in; FC = 3 in

Step-by-step explanation:

∠EAD ≅ ∠AEB ≅ ∠EAB so ΔABE is isosceles and AB ≅ BE = 3 in.

Likewise, ∠FDC ≅ ∠FDA ≅ ∠DFC, so ΔDCF is isosceles and AB ≅ BC ≅ FC = 3 in.

Then EF = 8 in - 3in - 3 in = 2 in

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2 years ago

The length of a rectangle is twice its width.<br> The perimeter of the rectangle is 126 feet.

seraphim [82]

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Step-by-step explanation:

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2 years ago

What properties of equality do you need to use to solve the equation 5.6x−16.9=−0.1? Solve the equation

kakasveta [241]

Answer:

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Step-by-step explanation:

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2 years ago

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2 years ago

Is y= -9/5x + 1/5 perpendicular to y= 5/9x + 2/9

Lana71 [14]

The given lines are perpendicular to each other.

Further explanation:

Given lines are:

Line 1: y= -9/5x + 1/5

Line 2: y= 5/9x + 2/9

As the lines are in slope=intercept form, the co-efficient of x are their slopes

Let m1 be the slope of line 1 and m2 be the slope of line 2

Then

$m_1=-\frac{9}{5}\\m_2=\frac{5}{9}\\m_1.m_2=-\frac{9}{5}*\frac{5}{9}\\m_1.m_2=-1$

As we can see that the product of slopes of both lines is -1. The product of slopes of perpendicular lines is -1.

The given lines are perpendicular to each other.

Keywords: Slope, slope-intercept form

Learn more about equation of lines at:

#LearnwithBrainly

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2 years ago