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S_A_V [24]
2 years ago
13

Ross resides in an apartment where houses are arranged horizontally. She resides at door number 3.if she want to visit her frien

d Martha at door number 7, how many house should she Cross?
Mathematics
1 answer:
Grace [21]2 years ago
7 0

Answer:

3 doors if we are excluding her own. 4 if we are not.

4, 5, 6. she does not pass 7, she enters 7.

3, 4, 5, 6. it could be argued she must first pass her own door.

that context changes the answer.

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What is the area of the pentagon, rounded to the nearest tenth?
Rudik [331]

The area of the pentagon, rounded to the nearest tenth will be 32.7 square cm. Then the correct option is C.

<h3>What is a polygon?</h3>

The polygon is a 2D geometry that has a finite number of sides. And all the sides of the polygon are straight lines connected to each other side by side.

A regular pentagon has an apothem measuring 3 cm and a perimeter of 21.8 cm.

Then the side length of the pentagon will be

5 x Side length = 21.8 cm

     Side length = 4.36 cm

Then the area of the pentagon, rounded to the nearest tenth will be

Area of pentagon = 5 x area of triangle

Area of pentagon = 5 x 1/2 x 4.36 x 3

Area of pentagon = 32.7 square cm

Thus, the correct option is C.

More about the polygon link is given below.

brainly.com/question/17756657

#SPJ1

4 0
2 years ago
Seventy percent of the engines manufactured on an assembly line are defective. Suppose engines are randomly selected one at a ti
strojnjashka [21]

Answer:

0.7

Step-by-step explanation:

Probability of defective = 0.7

P(non-defective) = 1 - 0.7 = 0.3

Let X be the trial at which we get the first non-defective

Then X follows a geometric distribution.

X ~ Geo (0.3)

What has happened already will not affect the probability.

P(atleast 2 more) = P(X > 1)

= 1 - P(X = 1)

= 1 - (0.3)

= 0.7

8 0
3 years ago
At 6:00 the outside air temperature was 15°F. By 8:00 the temperature had dropped 9°F, and by 11:00 I had dropped another 12°. W
laila [671]

Answer:

- 6°F

Step-by-step explanation:

Given :

Temperature at 6:00 = 15°F

Temperature dropped by 9°F by 8:00

Temperature by 8:00 = 15°F - 9°F = 6°F

Temperature dropped another 12°F by 11:00

Hence, Temperature at 11:00 will be :

6°F - 12°F = - 6°F

Temperature at 11:00 = - 6°F

8 0
3 years ago
Solve by Completing the Square
guajiro [1.7K]
You have to do -b/2a and put a square at the end of each =. You have to make it equal to 0 first though
4 0
3 years ago
What is the slope of the line that has the equation 4x + 2y = 12?
Kay [80]
= -2


Im pretty sure
Best of luck hope I helped :)
3 0
2 years ago
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