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3 years ago

How do you know if 2 polygons are similar?

2 answers:

8 0

Check the angles and corresponding sides: All the angles in a rectangle are congruent to each other and now check that the sides are proportional to each other. 2. Scale factor: If two polygons are similar, then the ratio of the lengths of the two corresponding sides is the scale factor.

nekit [7.7K]3 years ago

7 0

Corresponding angles are still congruent
The corresponding side lengths are proportional

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5t=9y + 22 solve for y

inna [77]

Solve for y:
5 t = 9 y + 22
5 t = 9 y + 22 is equivalent to 9 y + 22 = 5 t:
9 y + 22 = 5 t
Subtract 22 from both sides:
9 y = 5 t - 22
Divide both sides by 9:
Answer: y = (5 t)/9 - 22/9

5 0

4 years ago

When the door was left open, 36 pigeons flew the coop. If this was 40 percent of all the pigeons, how many pigeons were there or

ivolga24 [154]

Answer: 90

Step-by-step explanation:

40 % = 0.40. X = number of pigeons. 0.4x =36

X = 36/0.4 = 90

4 0

3 years ago

Help please and thanks! I always give brainliest if it's correct! :)

gregori [183]

Answer:

XYZ = p=6

Step-by-step explanation:

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3 years ago

I can't figure out which one this is,

ki77a [65]

Answer:

That would be ~p through~v.

5 0

3 years ago

Find the gradient of the line segment between the points (-3,1) and (2,5). Give your answer in its simplest form.

Lorico [155]

Answer:

$\displaystyle m = \frac{4}{5}$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinate Planes

Coordinates (x, y)

Slope Formula: $\displaystyle m = \frac{y_2 - y_1}{x_2 - x_1}$

Step-by-step explanation:

Step 1: Define

Identify points.

Point (-3, 1)

Point (2, 5)

Step 2: Find slope m

Simply plug in the 2 coordinates into the slope formula to find slope m.

Substitute in points [Slope Formula]: $\displaystyle m = \frac{5 - 1}{2 - -3}$
[Order of Operations] Evaluate: $\displaystyle m = \frac{4}{5}$

6 0

2 years ago