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3 years ago

WILL GIVE A BRAINLEST

2 answers:

6 0

The answer is B. Two lines are perpendicular if they meet at one point and one of the angles at their point of intersection is a right angle. A perpendicular line has to intersect and have a 90-degree angle in order to be perpendicular.

My name is Ann [436]3 years ago

6 0

While A is true. It is not the most accurate. A line is said to be perpendicular to another line if the two lines intersect at a right angle. Therefore I believe B is the most accurate. C is true as well but not the most accurate.

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If a heptagon has an area of 105 in2, what is the measure of one side ?

kumpel [21]

Answer:

5.38 inches

Step-by-step explanation:

The formula for Area of an Heptagon

= A=7/4a²cot(180°/7)

Area = 105in²

Side a = ?

The formula for Side a

= √4A ×tan (180°/7)/7

= √4 × 105 × tan (180°/7) /7

= 5.37536 inches

Approximately = 5.38 inches.

4 0

3 years ago

Are these lines perpendicular? yes no

liberstina [14]

Answer:

Step-by-step explanation:

perpendicular means that they intersect at a 90° angle

4 0

2 years ago

The answer to 0.92 into a percentage

Aleksandr [31]

Answer:

92%

Step-by-step explanation:

This is because all you have to do to turn a decimal into percentage is to move the decimal over 2 spots, and drop the Zero.

4 0

3 years ago

What type of reaction is shown below? Check all that apply. 2Na + Cl2 → 2NaCl synthesis decomposition combustion

const2013 [10]

Answer: This is a type of Synthesis reaction.

Explanation:

Synthesis reaction is a type of chemical reaction in which two or more substances combine to form a single substance.

$A+B\rightarrow AB$

Decomposition reactions are a type of chemical reactions in which a substance breaks down into two or more substances.

$AB\rightarrow A+B$

Combustion reaction is a type of chemical reaction in which a hydrocarbon reacts with oxygen gas to produce carbon dioxide and water.

$Hydrocarbon+O_2\rightarrow H_2O+CO_2$

For the given reaction:

$2Na(s)+Cl_2(g)\rightarrow 2NaCl$

Here, 2 substances are combining together to form a single substance. Hence, it is considered as a synthesis reaction.

8 0

3 years ago

Read 2 more answers

Determine whether the sides given would form an acute, obtuse, or right triangle. 7, 7, 13

Brut [27]

Let a = 7 , b = 7, and c = 13. c is always the biggest number.

Acute Triangle is when $c^2 \ \textless \ a^2 + b^2$

Right Triangle is when $c^2 = a^2 + b^2$

Obtuse Triangle is when $c^2 \ \textgreater \ a^2 + b^2$

5 0

3 years ago