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Alecsey [184]
2 years ago
11

Complement of 72°. pls help

Mathematics
1 answer:
vesna_86 [32]2 years ago
6 0

Answer:

5453 ok! it's write answer

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At the flower show, 1 trolley arrives every 4 minutes to take people to the Rose Pavilion, another trolley arrives every 10 minu
IrinaK [193]

Answer: 20 minutes

Step-by-step explanation: i don’t feel like explaining

5 0
3 years ago
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The coordinates of the vertices of quadrilateral DEFG are D(−2, 5) , E(2, 4) , F(0, 0) , and G(−4, 1) .
daser333 [38]

Answer: The correct option is a.Quadrilateral DEFG is a rhombus because opposite sides are parallel and all four sides have the same length.

Explanation:

It is given that  coordinates of the vertices of quadrilateral DEFG are D(−2, 5) , E(2, 4) , F(0, 0) , and G(−4, 1) .

The distance formula for two points is given below,

D=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

DE=\sqrt{(2+2)^2+(4-5)^2}=\sqrt{17}

EF=\sqrt{(0-2)^2+(0-4)^2}=\sqrt{20}

FG=\sqrt{(-4-0)^2+(1-0)^2}=\sqrt{17}

DG=\sqrt{(-4+2)^2+(1-5)^2}=\sqrt{20}

Slope formula,

m=\frac{y_2-y_1}{x_2-x_1}

Slope of DE,

m_1=\frac{4-5}{2+2}= \frac{-1}{4}

Slope of EF,

m_2=\frac{0-4}{0-2}= 2

Slope of FG,

m_3=\frac{1-0}{-4-0}= \frac{-1}{4}

Slope of DG,

m_4=\frac{1-5}{-4+2}= 2

The slope of opposite sides are equal, it means the opposite sides are parallel.

All four sides do not have the same length. It means it is not a rhombus.

From the figure it is noticed that the opposite sides are parallel.

Therefore, the correct option is a.Quadrilateral DEFG is a rhombus because opposite sides are parallel and all four sides have the same length.

3 0
4 years ago
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3.) What must be the value of b to make the statement true?
cricket20 [7]
Answer= 7
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5-b+4-2=0
5-2+4=7
7-b=0
Then you can tell the answer is 7 because that is the only thing that can replace b and equal 0
7 0
3 years ago
Help me please on number 1......
dangina [55]
849-1.5=847.5
6.8-4.8=2

847.5 divided by 2 =423.75
8 0
3 years ago
Lisa has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. Calculate the area
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I would use the formula, area = length x width
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