All categories

3 years ago

9) Which figure has 90° rotational symmetry?

Mathematics

1 answer:

IceJOKER [234]3 years ago

6 0

The answer is B. Thank you

You might be interested in

What is the slope of the line that passes through the pair of points (-1, 4), (3,12)

Nadya [2.5K]

Answer:

$\displaystyle m = 2$

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
Subtraction

Left to Right

Algebra I

Coordinates (x, y)
Slope Formula: $\displaystyle m = \frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Identify

Point (-1, 4)

Point (3, 12)

Step 2: Find slope m

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

Substitute in points [Slope Formula]: $\displaystyle m = \frac{12-4}{3--1}$
[Fraction] Subtract: $\displaystyle m = \frac{8}{4}$
[Fraction] Divide: $\displaystyle m = 2$

3 0

3 years ago

In a class of 30 students 60% said they walk to school

Mekhanik [1.2K]

moan and groan a lot ghjiouygbnjkh

3 0

2 years ago

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

svetlana [45]

Answer:

radius = 5 in

Step-by-step explanation:

Using the formula for calculating the area (A) of a circle

A = πr² ( r is the radius )

here A = 78.5, hence

3.14r² = 78.5 ( divide both sides by 3.14 )

r² = $\frac{78.5}{3.14}$ = 25 ( take the square root of both sides )

r = $\sqrt{25}$ = 5

6 0

3 years ago

Read 2 more answers

Jenna bought n notebooks which cost 5 dollars each, and 3 pens which cost r dollars each. How much money did she spend?

netineya [11]

Is there choices to this? because there is not enough information to answer this

7 0

3 years ago

Read 2 more answers

Emily purchased three different sizes of popcorn at the movies. The medium popcorn was twice as expensive as the small popcorn.

MaRussiya [10]

Answer:

Step-by-step explanation:

medium popcorn- 2x

total - $23

large- 2x+3

23=4x+3

20=4x

x=5

6 0

3 years ago

Read 2 more answers