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3 years ago

I NEED THIS ASAP about the Pythagorean

Mathematics

1 answer:

Natalija [7]3 years ago

8 0

Answer: 24.49 or 24.5 if rounded.

Step-by-step explanation: We have to use the pythagorean theorem of course...

a² + b² = c²

15² + 20² = c²

225 + 400 = c²

600 = c²

$\sqrt{600}$

c = 24.49 (If we round to the nearest tenth then the answer is 24.5)

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A lamp is in sale, and it’s price is reduce from $80 to $50

Mila [183]

Answer:

37.5%

Step-by-step explanation:

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3 years ago

A circle is inscribed in a square. Write and simplify an expression for the ratio of the area of the square to the area of the c

STALIN [3.7K]

Best Answer:<span> </span><span>So first we need both areas, then we can relate them, and then divide the circle by the square:

A(circle) = πr^2
A(square) = L*W or (2r)*(2r) which is (2r)^2

For the square, we know this is true because because the radius is half the diameter, so if we multiply the radius by 2, we get the length of one side of the square. We also know that the lengths of both sides of the square are the same by definition of a square.

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3 years ago

your brother is 1.3 your age. your sister is 6 years older tahn your brother.Your sister is 10 years old. Write and solve a equa

Papessa [141]

Answer:

My age is 12 years.

Step-by-step explanation:

Given:

Sister's age = 10 years

Let my age be x.

Now according to question;

my brother's age is 1/3 of my age

So brother's age = $\frac{1}{3}x$

Also according to question;

my sister is 6 years older than my brother;

Sister's age = $6+\frac{1}{3}x$

Also given Sister's age = 10 years

hence equation to find my age will be expressed as below;

$6+\frac{1}{3}x = 10\\\\\frac{1}{3}x = 10-6\\\\\frac{1}{3}x = 4\\\\\therefore x = 4\times3 = 12$

Brothers age = $\frac{1}{3}x=\frac{1}{3}\times12=4$

Hence my age is 12 years.

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3 years ago

What is the area of the front of the rectangular prism?

iVinArrow [24]

Answer:

Area = 28 cm² (check the attached diagram for better clarity)

Step-by-step explanation:

The question is incomplete but let's see a similar example

The front of a rectangular pyramid can refer to either one of two possibilities: it could be either the side that has the breadth and the height or the side that has the length and the height. In this case, we were given the formula for calculating the area of the front face of this rectangular prism as the product of breadth and height

Mathematically,

A = bh

From the attached diagram, we will see the properties of the rectangular prism as:

length = 5 cm, breadth = 4 cm, height = 7 cm

To calculate for the front face, we use A = bh,

⇒ A = 4 * 7 = 28 cm²

Example 2

If the breadth of the rectangular prism is 2 cm and the height is 3 cm, we have:

A = 2 * 3 = 6 cm²

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3 years ago

Which of the following point-slope form equations could be produced with the points (4, -5) and (-4, -3)?

Alexus [3.1K]

Answer:

$y + 5 =- \frac{1}{4} (x-4)$

Step-by-step explanation:

You will find the slope-intercept form first, and then you can find the point slope form of the equation

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3 years ago