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Alina [70]
3 years ago
14

How can u describe how to find area and perimeter in your classroom

Mathematics
1 answer:
julia-pushkina [17]3 years ago
7 0
The area formula depends on the shape your doing. for Ex:(rectangle, A=lenght*height) and Ex2: (trapazoid, A= 1/2h(b1 +b2)) .......In perimeter you just add up all the sides no matter what shape. Except circle is (C= 2(pie)r)
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Graph the line with the equation y=-1/2x-3
GrogVix [38]
Like this? Brainliest if I got it? :) it’s ok if u don’t

4 0
2 years ago
Find the zero of the linear function f(x)=x+5
inn [45]

Answer:

-5 =x

Step-by-step explanation:

f(x)=x+5

Set the function equal to zero

0 = x+5

Solve for x

-5 = x+5-5

-5 =x

7 0
2 years ago
Find the coordinates of the orthocenter for XYZ with X(-5,-1) Y(-2,4), Z(3,-1)
V125BC [204]

9514 1404 393

Answer:

  (-2, 2)

Step-by-step explanation:

The orthocenter is the intersection of the altitudes. The altitude lines are not difficult to find here. Each is a line through the vertex that is perpendicular to the opposite side.

Side XZ is horizontal, so the altitude to that side is the vertical line through Y. The x-coordinate of Y is -2, so that altitude has equation ...

  x = -2

__

Side YZ has a rise/run of -1/1 = -1, so the altitude to that side will be the line through X with a slope of -1/(-1) = 1. In point-slope form, the equation is ...

  y -(-1) +(1)(x -(-5))

  y = x +4 . . . . . . . . subtract 1 and simplify

The orthocenter is the point that satisfies both these equations. Using the first equation to substitute for x in the second, we have ...

  y = (-2) +4 = 2

The orthocenter is (x, y) = (-2, 2).

4 0
3 years ago
I dont get how you solve these i need some help
nalin [4]

Answer:

3rd one y=2x

Step-by-step explanation:

because they are saying how many minutes can you read 2 pages so it would be 2 times x and x is the 4 minutes

4 0
3 years ago
I suck at math I need help
GaryK [48]

Answer:

b=74

Step-by-step explanation:

You just gotta use sum of angles in a triangle and sum of angles on a straight line.

3 0
3 years ago
Read 2 more answers
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