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3 years ago

The length of the midsegment of a triangle is always half the length of the side it is parallel to true or false

1 answer:

3 0

True. The midsegment of a triangle is halfway up the triangle, and since the top half and the full triangle are similar triangles, its dimensions are proportional.

This means half the height will give half the base (midsegment). So the midsegment is always half the length of the side it's parallel to.

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Find the perimeter of the polygon with the given vertices G(2,4), H(2,-3), J(-2,-3), K(-2,4)

IgorLugansk [536]

I graphed these vertices myself in the attached photo, and it turned out to be a rectangle; With the thought that you perhaps made a typo and meant rectangle instead of polygon I continued on and found the perimeter of the rectangle.

The formula for finding the perimeter of a rectangle is P = 2(l+w).

I counted the units of the long side (K & J) to get the length, which is 7.

Next, I counted the units between J & H to find the width which is 4. Now we're ready to use the formula.

First I will add the length plus the width, 7 + 4 = 11.

Then I will multiply 2 x 11 to get a product of 22.

P = 22. :D

8 0

3 years ago

The absolute ______ of 2 is 2. 1.) absolute value 2.)sign 3.)opposite

Paul [167]

The absolute value of 2 is 2

8 0

3 years ago

Read 2 more answers

Evaluate the following functions for the given value. 19. f(x) = -x3 + x2; -2

suter [353]

Answer:

Step-by-step explanation:

f(x) = -x^3 + x^2

Let x = -2

Evaluate the expression

f(-2) = -(-2)^3 + (-2)^2

= - (-2)*(-2) * (-2) + ( -2) * (-2)

= -(-8) + ( 4)

= 8 + 4

= 12

3 0

2 years ago

Help please!

Anna71 [15]

Answer:

y= -4x^2 + 15x - 14

Step-by-step explanation:

A parabola is always in the form y = ax^2 + bx + c.

Substitute each point to produce different equations:

-14 = 0a + 0b + c = c

so c = -14

-3 = a1^2 + b1 + c = a + b - 14

so a + b = 11

0 = a2^2 + b2 + c = 4a + 2b -14 = 0

so 4a + 2b = 14

if we double a + b = 11 we get 2a + 2b = 22

Subtract this from 4a + 2b = 14 and we get 2a = -8 so a= -4 and b = 11 - a = 15

We don't need to use the (3,5) points as we have all the information we need.

4 0

3 years ago

Read 2 more answers

Please help with math

dezoksy [38]

Anwser: The hotels charge for a call is the same for a 20 minute call.

Step-by-step explanation:

Alrighty, same deal as the last problem, set up a equality, it should look like this:

$1+.80x=$2+.75x

Move the variable to the left of the equation:

.80x-.75x=2-1

Simplify

.05x=1

x=20

3 0

3 years ago