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3 years ago

Commutative Property of Addition 25 + (-x) =

2 answers:

8 0

The commutative property of addition states that when two numbers are being added, their order can be changed without affecting the sum. For example 50+12. It’s the same as 12+50! (-x)+25 would be your commutative property of addition

creativ13 [48]3 years ago

3 0

Answer:

x is 25

Hope it helps.....

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What is the smallest and largest perimeter of a polygon with an area of 20?

DENIUS [597]

Answer:

The polygon with the smallest perimeter is the megagon

The polygon with the largest perimeter is the triangle

Step-by-step explanation:

An equilateral triangle with area = 20 has

0.5× a²×sin60 = 20

a= 6.796

Hence, perimeter = 20.39

A square of area 20 has perimeter= 4×√20 = 17.9

A regular pentagon of area = 20 has perimeter = 3.41 × 5 = 17.05

Hence as the number of sides is increasing, the ratio of the Area to the Perimeter also increases

Therefore, a triangle has the largest perimeter with an area of 20 while a megagon with a million sides has the smallest perimeter with an area of 20.

4 0

2 years ago

To celebrate the first day of winter, Lin was putting stickers on some of the lockers. There are 100 lockers along one side of h

loris [4]

Answer:

24, 48, 72, 96

Step-by-step explanation:

Least Common Multiple (LCM)

It's the smallest positive number that is a multiple of two or more numbers. For example, let's find the LCM of 15 and 25:

Multiples of 15: 15,30,45,60,75,90,...

Multiples of 25: 25,50,75,100,...

Note 75 is a common multiple of both and is also the smallest possible.

Lin puts a snowflake sticker every 6 lockers and a snowman sticker every 8 lockers. To find the lockers where both stickers are places, we must find the LCM of 6 and 8:

6 = 2*3

8 = 2*2*2

Multiplying the common factors the maximum number of times it appears:

LCM = 2*2*2*3 = 24

Thus, every 24 lockers there are two stickers until Lin reaches the last 100th locker along the halfway.

The sequence of lockers is:

24, 48, 72, 96

7 0

3 years ago

A pitcher of fruit punch holds 2 gallons. If 9 people share the punch, how much does each person get? Answer needs to be in frac

Oxana [17]

There are 2 gallons divided among 9 people
2gallons/9people
2/9 gallons/person

Hope this helps!

6 0

3 years ago

Mateo is constructing an equilateral triangle inscribed in a circle with Center p . he draws the diameter of the circle through

Vesna [10]

The correct answer is:

Without changing the span on the compass, place the compass point on one endpoint of the diameter and draw a full circle.

Explanation:

The steps to construct an inscribed equilateral triangle using the diameter are:

1. Place your compass point on the paper and draw a circle. Be sure to keep the compass set at the same width.

2. Using a straightedge, draw the diameter of the circle.

3. With the compass still set to the same width, place the compass point on one endpoint of the diameter and draw a full circle.

4. Draw segments connecting the points of intersection of the two circles and connecting each of these points to the opposite end of the diameter (the one not used as the center of the circle). This forms our triangle.

3 0

3 years ago

Read 2 more answers

This question is asking for the 2 x solutions.

NeTakaya

Answer:

x= -1/4 and 8

Step-by-step explanation:

2x^2 - 8=31x -2x^2

Combine like terms and move all terms to one side:

4x^2-31x-8=0

use the quadratic formula.

(I can't type this out, but you just plug in the numbers into the formula which you can look up if you don't know it)

3 0

2 years ago

Read 2 more answers