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3 years ago

Please i need help! :(

Mathematics

2 answers:

stepan [7]3 years ago

5 0

Help help help help help help

Shalnov [3]3 years ago

5 0

The area of The bedroom would be 30
Because the walls are a 6 by 5 and all your doing there is multiplying 6 x 5

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Help please I need the name of the polygon and the perimeter and area of the shape of numbers 42-47

sergij07 [2.7K]

42 - 47

Polygons are

triangle, trapezoid, triangle, parallelogram, rectangle and parallelogram

The area of triangles = 1/2 * base * haight.

Area of the parallelograms = height * base.

Area of rectangle= width * length

Area of trapezoid = 1/2 * (a + b) * height where a and b are the opposite parallel sides

The perimeters = sum of the sides of the polygons.

8 0

3 years ago

Calculate the area of triangle ABC with altitude CD, given A(6,-2) B(1,3) C(5,5) D(2,2)

Vikki [24]

The area will be half the product of the lengths of AB and CD.

|AB| = √((6-1)² +(-2-3)²) = 5√2
|CD| = √((5-2)² +(5-2)²) = 3√2

Area = (1/2)*(5√2)*(3√2) = (1/2)*(15*2) = 15

The appropriate choice is ...
D: 15 square units

6 0

3 years ago

What is the smallest integer that is above square root of 14?

LenaWriter [7]

Sqrt14 = 3.74165
smallest integer above = 4

3 0

3 years ago

Read 2 more answers

Which of the following is NOT a variation of a Pythagorean identity?

Ipatiy [6.2K]

The expression that is not a variation of the Pythagorean identity is the third option.

<h3>What is the Pythagorean identity?</h3>

The Pythagorean identity can be written as:

$sin^2(x) + cos^2(x) = 1$

For example, if we subtract cos^2(x) on both sides we get the second option:

$sin^2(x) = 1 - cos^2(x)$

Which is a variation.

Now, let's divide both sides by cos^2(x).

$sin^2(x)/cos^2(x) + cos^2(x)/cos^2(x) = 1/cos^2(x)\\\\tan^2(x) + 1 = sec^2(x)\\\\tan^2(x) - sec^2(x) = -1$

Notice that the third expression in the options looks like this one, but the one on the right side is positive. The above expression is in did a variation of the Pythagorean identity, then the one written in the options (with the 1 instead of the -1) is incorrect, meaning that it is not a variation of the Pythagorean identity.

Concluding, the correct option is the third one.

If you want to learn more about the Pythagorean identity, you can read:

brainly.com/question/24287773

3 0

3 years ago

31<br>Write as a mixed number.<br>Give your answer in its simplest form.

makvit [3.9K]

Six divided by five maybe and add a 1

4 0

3 years ago