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just olya [345]

3 years ago

13

PLEASE HELP! I'M SO CONFUSED! Find the area of the regular polygon below. Round your answer to the nearest tenth. Show ALL your

work.

1 answer:

padilas [110]3 years ago

3 0

There are 5 sides/angles in a pentagon. Formula (n-2)180 so (5-2)180 which is (3)180=540. In a regular Pentagon there is an area of 540°

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Are the two triangles shown below similar? yes or no. explain

IgorLugansk [536]

Answer:

Yes

Step-by-step explanation:

Since the triangles have two congruent angles, the third angle is also congruent.

The sides of one triangle are proportional to the corresponding sides of the other triangle.

8 0

3 years ago

Read 2 more answers

A ball is rolled at a velocity of 12m/sec.after 36 seconds,it comes to a stop what is the acceleration of the ball?

miv72 [106K]

acceleration of ball is $\frac{-1}{3}\,\,m/sec^2$

Step-by-step explanation:

Initial Velocity = 12m/sec

time = 36 s

Final Velocity 0 m/sec (ball comes to stop)

Acceleration= ?

The formula used to find acceleration is:

$Acceleration=\frac{Final\,\,Velocity-Initial\,\,Velocity}{Time}$

Putting values and finding acceleration:

$Acceleration=\frac{Final\,\,Velocity-Initial\,\,Velocity}{Time}$

$Acceleration=\frac{0-12}{36}$

$Acceleration=\frac{-12}{36}$

$Acceleration=\frac{-1}{3}\,\,m/sec^2$

So, acceleration of ball is $\frac{-1}{3}\,\,m/sec^2$

Keywords: Acceleration

Learn more about Acceleration at:

#learnwithBrainly

8 0

3 years ago

We are interested in conducting a study to determine the percentage of voters of a state would vote for the incumbent governor.

Sidana [21]

Finding the sample size for estimating a population proportion.

The formula is:

n = (z/m)^2 p~(1−p~)

where:
Z is the z value of the confidence level where 95% is equal to 1.96

M is the margin of error where 0.05

And p~ is the estimated value of the proportion where it is 0.50

Solution:

n = (1.96/0.05)^2 (0.5) (1-0.5)

= 1.536.64 (0.5) (0.5)

= 768.32 (0.5)

= 384.16

This is the minimum sample size, therefore we should round it up to 385. The answer is letter c.

6 0

3 years ago

1. The weights of 30 students in a class ( in Kg ) are as follows. 42 , 52, 46 ,63, 47 ,40,50,63,52, 57,40,47,55 ,52, 49, 42,56,

enyata [817]

Step-by-step explanation:

I think when you put the numbers orderwise

The range 40 - 50 in which most students lie

5 0

2 years ago

Solve this Algebra problem please, I can't figure it out.

vladimir1956 [14]

Answer:

$45927/4096$

Step-by-step explanation:

<u>Given is the geometric series, because the ratio of consecutive terms is common:</u>

$r = 84/112 = 63/84 = 3/4$

The first term is 112.

<u>So the nth term is:</u>

$t_n = t_1*r^{n-1}$

<u>The 9th term is:</u>

$t_9 = 112*(3/4)^8=45927/4096$

8 0

2 years ago