All categories

2 years ago

3. The regular polygon below has a radius of 13 cm and an apothem of 12 cm. Solve for the perimeter of the

Mathematics

1 answer:

LenKa [72]2 years ago

4 0

25 because I added it so that why I got that answee

You might be interested in

How many years will it take for the area of the glacier to decrease to 15 square kilometers

atroni [7]

Answer:

20ln(3)

Step-by-step explanation:

Put 15 for A and solve for t.

15 = 45e^(-.05t)

15/45 = 1/3 = e^(-.05t) . . . . divide by 45

ln(1/3) = -.05t . . . . . . . . . . . take natural logs

20ln(3) = t . . . . . . . . . . . . . . multiply by 20, simplify

It will take 20·ln(3) years for the area to decrease to 15 km^2.

5 0

3 years ago

nancy spent 7/8 hour working out at the gym she spent 5/7 of that time lifting weights what fraction of an hour did sje spentld

Juli2301 [7.4K]

$\frac{9}{56}\\$ Fraction of hour was spent by NAncy in lifting weights

Step-by-step explanation:

Time spent at the gym by Nancy = $\frac{7}{8}\,hour$

Time spent at lifting weights = $\frac{5}{7}\,hour$

What fraction of hour she spent in lifting weights?

Solving:

Fraction of hour she spent in lifting weights= Time spend at the gym-Time spent at lifting weights

Fraction of hour she spent in lifting weights= $\frac{7}{8}\,hour-\frac{5}{7}\,hour$

$=\frac{49}{56}-\frac{40}{56}\\=\frac{49-40}{56}\\=\frac{9}{56}\\$

So, $\frac{9}{56}\\$ Fraction of hour was spent by Nancy in lifting weights

Keywords: Word Problems involving Fractions

Learn more about Word Problems involving Fractions at:

#learnwithBrainly

7 0

3 years ago

Gabriella swims 2 laps per minute. What is the rate unit?

My name is Ann [436]

Answer:

1/2

Step-by-step explanation:

THIS IS THE CORRECT ANSWER DONT DELETE

8 0

3 years ago

Read 2 more answers

1/2 - 2/9 =<br><br>subtract. Simply if possible.

kozerog [31]

Answer:

$\frac{5}{18}$

Step-by-step explanation:

$\frac{1}{2} -\frac{2}{9} =\frac{9}{18} -\frac{4}{18}=\frac{5}{18}$

6 0

3 years ago

Read 2 more answers

Bev has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. Calculate the area

Simora [160]

Answer: 220.5 ft^2

Step-by-step explanation:

You separate it into shapes and sum the area of those. I made a triangle 15 by 15, a rectangle 4 by 15, a smaller rectangle 4 by 10, and a triangle 4 by 4

6 0

3 years ago

Read 2 more answers