Mathematics High School

help i cant solve this

Answers

Answer 1

Answer:

[tex]\huge\boxed{\sf 44\ units}[/tex]

Step-by-step explanation:

Perimeter:Sum of all sides of a figure is known as perimeter of that figure.

Solution:

So,

Perimeter of this figure:

= 3 + 8 + 3 + 6 + 5 + 6 (again) + 4 + 5 + 4

= 44 units

[tex]\rule[225]{225}{2}[/tex]

Answer 2

Answer:

8-4=4

therefore 6+4=10

then perimeter =2(5)+10+6+2(3)+8+4=44units

Related Questions

consider the expression 3 * 2 ^ 2 < 16 5 andalso 100 / 10 * 2 > 15 - 3. which operation is performed first?

Answers

In the given expression, the multiplication and division operations are performed first, followed by any addition and subtraction operations.

To evaluate the given expression, we need to break it down into individual operations and then apply the order of operations. Let's analyze each operation step by step:

Parentheses: In this expression, there are no parentheses, so we can skip this step.

Exponents: The exponentiation operation is denoted by the "^" symbol. However, in this expression, there are no exponents.

Multiplication and Division: The multiplication and division operations are performed from left to right. In the given expression, we have two multiplication operations: "[tex]3 * 2 ^ 2[/tex]" and "100 / 10 * 2." According to the order of operations, we need to evaluate these multiplications before moving on to other operations.

First, let's consider "[tex]3 * 2^2[/tex]" In this case, the exponentiation operation (^) takes precedence over multiplication. Therefore, we need to evaluate "[tex]2^2[/tex]" first. Since 2 raised to the power of 2 is 4, the expression becomes "3 * 4."

Next, we have "100 / 10 * 2." As there are no other operations to perform before division, we can proceed with evaluating this expression. The division of 100 by 10 results in 10, and then multiplying by 2 gives us 20.

Addition and Subtraction: The addition and subtraction operations are also performed from left to right. In the given expression, we have "16 5" and "15 - 3" as the remaining operations.

Let's consider "16 5" first. The expression "16 5" is ambiguous because there is no operator between the numbers. It is essential to have a proper operator like ">" or "<" to determine the relationship between the two numbers. Without it, the expression is invalid.

Finally, we have "15 - 3." Subtracting 3 from 15 gives us 12.

Now that we have evaluated each operation, we can rewrite the expression as "3 * 4 < 12 and also 20 > 12."

To summarize, the operations are performed in the following order:

Exponents (if any)

Multiplication and Division (from left to right)

Addition and Subtraction (from left to right)

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light with a wavelength of 694 nmnm passes through a slit 7.90 μmμm wide and falls on a screen 1.95 mm away.

Answers

Using the given values, we can calculate the angle of diffraction (θ) and the distance between adjacent bright fringes (y).

How to analyze the diffraction of light passing through a narrow slit?

To analyze the diffraction of light passing through a narrow slit, we can use the concept of the single-slit diffraction equation:

sin(θ) = (m * λ) / w

Where:

- θ is the angle of diffraction

- m is the order of the bright fringe

- λ is the wavelength of light

- w is the width of the slit

Given:

- Wavelength (λ) = 694 nm = 694 × 10^(-9) m

- Slit width (w) = 7.90 μm = 7.90 × 10^(-6) m

- Distance to the screen (D) = 1.95 mm = 1.95 × 10^(-3) m

First, let's calculate the angle of diffraction (θ):

θ = sin^(-1)((m * λ) / w)

Now, let's calculate the distance between adjacent bright fringes (y):

y = (m * λ * D) / w

Using the given values, we can calculate the angle of diffraction (θ) and the distance between adjacent bright fringes (y).

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