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2 years ago

So confused! Anyone good at this?

Mathematics

1 answer:

Greeley [361]2 years ago

7 0

Answer:

x = 90 degrees.

Step-by-step explanation:

These are all regular octagons and the value of x = 2 * external angle of an octagon.

The sum of external angles of a polygon sum to 360 degrees and in the case of an octagon each external angle = 360/8 = 45 dgrees,

So angle x = 2*45 = 90 degrees.

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What is the solution to the equation?

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A. 4(4) + 4 =20
16 + 4 =20

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sergiy2304 [10]

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3 years ago

The backyard is 20 inches long and 37 inches wide. What is the area of the backyard.

gizmo_the_mogwai [7]

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$\diamond\large\textsf{\textbf{\underline{Given\:question:-}}}$

The backyard is 20 inches long and 37 inches wide. What is the area of the backyard?

$\diamond\large\textsf{\textbf{\underline{\underline{Answer and how to solve:-}}}}$

We are given the backyard's length (20 inches long) and the backyard's width (37 inches wide).

We are asked to find the area of the backyard, which can be found using the following formula:-

$\boxed{\bold{A_{(rectangle)}=LW}}$

<u>Where:-</u>

<u></u>

A=Area of rectangle
L=Length (20 inches)
W=Width (37 inches)

Substitute the values:-

$\boxed{\bold{A=20*37}}$

On simplification,

✳︎ $\boxed{\bold{A=740\:in^2}}$ , which is our final answer.

<h3> Good luck with your studies.</h3>

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2 years ago

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Given ΔRST : ΔLMN, which of the following is true

Irina-Kira [14]

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3 years ago

Determine whether line AB and line CD are parallel, perpendicular, or neither. A( 4, 2), B(-3, 1), C(6, 0), D(-10, 8)

Lapatulllka [165]

Answer:

<h2>neither</h2>

Step-by-step explanation:

If AB an CD are parallel, then their slopes are the same.

If AB and CD are perpendicular, then the product of their slopes is equal -1.

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

Calculate the both slope:

$A(4,\ 2),\ B(-3,\ 1)\\\\m_{AB}=\dfrac{1-2}{-3-4}=\dfrac{-1}{-7}=\dfrac{1}{7}\\\\C(6,\ 0),\ D(-10,\ 8)\\\\m_{CD}=\dfrac{8-0}{-10-6}=\dfrac{8}{-16}=-\dfrac{1}{2}\\\\=============================$

$m_{AB}\neq m_{CD}$

The line AB and line CD are not parallel

$m_{AB}\cdot m_{CD}=\left(\dfrac{1}{7}\right)\left(-\dfrac{1}{2}\right)=-\dfrac{1}{14}\neq-1$

The line AB and line CD are not perpendicular.

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3 years ago