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4 years ago

Which polygon will always have 4-fold reflectional symmetry and order 4 rotational symmetry?

Mathematics

2 answers:

ArbitrLikvidat [17]4 years ago

8 0

It is a square. It looks the same from 4 angles and has 4 lines of symmetry

Naddik [55]4 years ago

5 0

Square can i have brainiest plz begging you

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Graph the line with a slope of 2/5 that goes through (3,1)

Triss [41]

Answer:

$y = \dfrac{2x}{5} - \dfrac{1}{5}$

Step-by-step explanation:

Given:

$\bullet \ \ \text{Slope of line:}\ \dfrac{2}{5} \\\\ \bullet \ \text{Passes through:} \ (3, 1)$

To determine the equation of the line, we will use point slope form.

<u>Formula of point slope form:</u>

→ y - y₁ = m(x - x₁)

Where "x₁" and "y₁" are the coordinates of the point and "m" is the slope.

Substitute the coordinates and the slope:

$:\implies y - 1 = \dfrac{2}{5} (x - 3)$

Simplify the R.H.S:

$:\implies y - 1 = \dfrac{2x}{5} - \dfrac{6}{5}$

Add 1 both sides:

$:\implies y - 1 + 1 = \dfrac{2x}{5} - \dfrac{6}{5} + 1$

Simplify the equation:

$:\implies y = \dfrac{2x}{5} - \dfrac{6}{5} + \dfrac{5}{5}$

$:\implies \boxed{y = \dfrac{2x}{5} - \dfrac{1}{5}}$

<u>Graphing the line on a coordinate plane:</u>

In this case, we are already given a point (3, 1). We can simply plot the y-intercept $[\bold{\frac{-1}{5} }]$ on the coordinate plane. Then, we can draw a straight line through both points. It is suggested that you use a ruler to do so.

Graph attached**

5 0

3 years ago

Read 2 more answers

Which expression is equivalent to 3^2-7?

Hunter-Best [27]

3 squared becomes 9. 9-7 equals 2, which is the final answer.

4 0

4 years ago

The sum of 32,476 and a number P is divided by 381, the quotient is 100 and remainder is zero. Find the number P.

Misha Larkins [42]

Answer:

p = 5,624

Step-by-step explanation:

(32,476 + p) / 381 = 100

multiply both sides by 381

32,476 + p = 38,100

Subtract 32476 from both sides

p = 5,624

6 0

3 years ago

A restless point moved from point 12 to the left at the speed of 5/6 units per minute. Where will it be in 10.2 minutes? PLLLS H

mrs_skeptik [129]

Answer:

3.5

Step-by-step explanation:

4 0

4 years ago

Find the value of z when x=10.5, a=0.357 and b=0.226.

boyakko [2]

Where's the equation that contains "z"?

6 0

3 years ago