So I am doing geometry in my math class, and I can't figure how how to do some of the problems.We have angles and you have to find the degree of each one. I have an acute angle that is 38 degrees, then I have 2 more acute angles, a right angle, and an obtuse angle. I am trying to find the degree of the obtuse angle. HELP! (If it helps, the worksheet is called "What do you call it when 50 people stand on a wooden dock?" #12)

Answers

Answer 1
Answer: ok, so in the problem there are 5 angles given but you really only need to focus on <KNL and <MNL. these two angles are a linear pair, or supplementary, which means that they add up to 180˚. so, if <KNL is 38˚, then <MNL is 142˚. 180-38=142

hope this helped

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How do you get the answer for 820 decreased by 25%

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So in this one, we are DECREASING by 25%, so we say 25% of 820...

25% × 820 =
.25 × 820 = 205

Now since we are decreasing by 25%, we take our answer and subtract it from the original amount, 820.

820 - 205 = 615

820 decreased by 25% is
615.

How to find the derivative of this?

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I cant see all the question but this  is how you find the derivative of your function using the product rule.

Here you use the extension of the product rule to 3 factors which we'll write as:-

f(x), g(x) and h(x):-

Derivative =  f'(x) g(x) h(x) + f(x) g'(x) h(x) + f(x) g(x) h'(x)

(3x - 1)(x + 4)(2x - 1)

derivative =  3(x + 4)(2x - 1) + (3x + 1)(1)(2x - 1) + (3x - 1)(x + 4)(2)

=  3(x + 4)(2x - 1) + (3x + 1)(2x - 1) + 2(3x - 1)(x + 4)

3 names for a square

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Three names for a square are:
1) parallelogram because it has 2 pairs of parallel sides.
2) polygon because it is a closed figure with at least 3 sides.
3) quadrilateral because it has 4 sides.
rectangle
qauterlagram
pallagam

Please answer those couple questions please help with it I don't have time please please

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1).  Quadrilateral,

2).  Quadrilateral, parallelogram, rhombus

3).  Quadrilateral, parallelogram, rectangle

4).  Quadrilateral, parallelogram

5).  Quadrilateral, trapezoid

6).  Quadrilateral + I think trapezoid but I'm not sure.

Find the area of a square with side a when a=2 in, a=12 in, and a=0.8 in. Are the area of a square and the length of its side directly proportional quantities? Why or why not?

Answers

Answer:

4 inches²

144 inches²

0.64 inches²

Yes, the area of a square and the length of its side directly proportional quantities.

Step-by-step explanation:

In this question, we have to find the area of square by changing the lengths of a side. Given lengths are: 2, 12, 0.8. I will evaluate the area of each side and try to find out the relation between area and length of side.

First, we start with the smallest length (a=0.8 inches)

Area of a square is calculated by taking the square of single side (since both sides are equal).

Area of square = a²

Area of square = 0.8²

Area of square = 0.64 inches²

Area of square with smallest side length (a=0.8 inches) = 0.64 inches²

Secondly, we start with the 2nd highest length (a=2 inches)

Area of square = a²

Area of square = 2²

Area of square = 4 inches²

Area of square with second largest side length (a=2 inches) = 4 inches²

Thirdly, we start with the highest length (a=12 inches)

Area of square = a²

Area of square = 12²

Area of square = 144 inches²

Area of square with highest side length (a=12 inches) =144 inches²

As we can see, with the increase in the length of a side, area of square is also increasing. Therefore, yes the area of a square and the length of its side are directly proportional quantities as the area increases or decreases when the length of the side increases or decreases.

Answer:

They are directly proportional quantities.

Step-by-step explanation:

DEFINITION

Two quantities are said to be directly proportional if an increase in one quantity lead to an increase in the other quantity.

Area of a Square = Length^2

Area of a Square of Length 2 inch = 2^2=4 \:square \:inch

Area of a Square of Length 12 inch = 12^2=144 \:square \:inch

Area of a Square of Length 0.8 inch = 0.8^2=0.64 \:square \:inch

Arranging the sides and corresponding area in ascending order:

(0.8, 2,  12) = (0.64,  4,   144)

We notice that as the length increases, the area also increases.

Therefore, the area of a square and the length of its side are directly proportional quantities.

What is the decimal representation of seven hundredths

Answers

0.07 or .07 is the same