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3 years ago

14

Helppppppppppppppppppp

1 answer:

svlad2 [7]3 years ago

4 0

This is rectangle, and it has little four squares on the inside, so that means that the left, and the right sides are equal, and the upper, and the bottom lines are equal. So what you basically do is that you do 2(4x–4), and when you multiply that you get 8x–8, and you substract that from the total which is 12x–8. And the answer is 4x

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Solve right now or no

nalin [4]

Answer:

= − 0 . 8

Step-by-step explanation:

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3 years ago

How do you simplify this problem

Aleonysh [2.5K]

The answer is 1/r to the power of 9

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4 years ago

How many distinct diagonals of a convex heptagon (7-sided polygon) can be drawn?

valkas [14]

The convex heptagon has 14 distinct diagonals can be drawn

Step-by-step explanation:

A polygon is said to be a heptagon if it has 7 vertices, 7 sides and 7 angles. A heptagon is called a convex heptagon if the lines connecting any two non-adjacent vertices lie completely inside the heptagon

The formula of number of diagonals in any polygon is $d=\frac{n(n-3)}{2}$ , where

d is the number of the diagonals of the polygon
n is the number of sides of the polygon

∵ The heptagon has 7 sides

∴ n = 7

∵ The number of diagonals = $\frac{n(n-3)}{2}$

- Substitute n by 7 in the rule above

∴ The number of diagonals = $\frac{7(7-3)}{2}$

∴ The number of diagonals = $\frac{7(4)}{2}$

∴ The number of diagonals = $\frac{28}{2}$

∴ The number of diagonals = 14

The convex heptagon has 14 distinct diagonals can be drawn

Learn more:

You can learn more about the polygons in brainly.com/question/6281564

#LearnwithBrainly

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4 years ago

A teacher wants to investigate whether listening to music while taking a math test increases scores. He instructs half

uysha [10]

<h2>D. This is an experiment with blocking </h2><h2 />

For your question: "A teacher wants to investigate whether listening to music while taking a math test increases scores. He instructs half

of his 36 students to listen to music while taking a test and the other half to not listen to music during the test. To

determine who listens and who does not, the teacher identifies the two students who scored highest on the last test

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The answer is D

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3 years ago

By how much does 5 exceed -4?<br>(a) 1<br>(b)-1<br>(c) 9<br>(d) -9

Elden [556K]

Answer:

C

Step-by-step explanation:

-4+9=5

6 0

4 years ago