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3 years ago

The sum of the interior angles of a 7-gon is 900 1,080 1,260 1,440

Mathematics

1 answer:

STatiana [176]3 years ago

3 0

Answer:

<u>The answer is 900.</u>

(sides-2) x 180

(7-2) x 180

5 x 180

900

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During a sale a dress decreased in price from $80 to $76 what was the percent of decrease

Nesterboy [21]

<span>Well 68/80 as a percent is 85 % .I got that by dividing 68 by 80 and them multiplying by 100. 100-85= 15. So therefore the dress decreased in price by 15%. </span>

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3 years ago

Which figure is the image produced by applying the composition T 0,3 o R0,90 to figure R?

Lyrx [107]

We are given original image R.

It is being translated by (0,3) first and then rotated by a positive angle 90 degrees.

Translation by (0,3) represents (x,y) --> (x, y+3) rule.

Positive 90 degree rotation represents, counterclockwise rotation.

The rule for counterclockwise rotation is (x,y) --> (-y,x).

Therefore, final rule for would be

(x,y) --> ( -y,x+3 )

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(0,-4) --> (-(-4), 0+3) = (4,3).

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3 years ago

How many degrees has ABC been rotated counter-clockwise about the origin

natali 33 [55]

I feel like it’s 180 dregrees, good luck!

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3 years ago

Read 2 more answers

H2 + 7h + 10 = 0<br> Help please

Leni [432]

Answer:

-2, -5

Step-by-step explanation:

h2 + 7h + 10 = 0

h^2 +7h + 10 = 0

h^2 +2h +5h + 10 = 0

h(h+2) + 5(h+2) = 0

h+2 = 0 or h+5 = 0

h = -2 or h = -5

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3 years ago

Please show your work! I’ll mark you brainlist!

melamori03 [73]

Answer:

105 feet or inches $^2$

Step-by-step explanation:

First we find the surface area of the base, (or the square.)

That is 25.

Next we find the areas of the triangle which is: $\frac{1} {2} base$ ×height

The area of one triangle is 20, so we multiply it by 4.

That is 80.

Finally, we add both surface area to find the total surface area.

That is 80 + 25 = 105

Hope that helped!

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3 years ago