All categories

2 years ago

Determine the perimeter of the figure shown, correct to decimal place. HELP IS MUCH APPRECIATED!

Mathematics

1 answer:

Virty [35]2 years ago

8 0

Answer:

15pi

Step-by-step explanation:

assuming the rounded shapes are semi-circles, we can determine each of their perimeters by the known formula for a full-circle, and divide by 2.

the perimeter of a circle with radius r, is 2×pi×r, hence, a semi-circle, is pi×r.

now we need to find r.

for the given side-length, we simply divide by 2, and we get 2.5 and 6.

for the missinf side-length, we use the Pythagorean formula - a²+b²=c², where a=5 and b=12, we get c=13. hence the third radius is 6.5.

now, the total perimeter will be:

2.5pi+6pi+6.5pi=15pi

You might be interested in

17. The current low temperature in uxbridge is 18 degrees Fahrenheit. Over the next two days the low temperature will decrease 1

tensa zangetsu [6.8K]

Answer:

Expression: 18 - 12 + 7. In 3 days, the temperature will be 13 degrees.

Step-by-step explanation:

The temperature is 18 degrees.

It will decrease 12 degrees after one day. So, it is 18 - 12.

Then it will increase by 7 degrees after another day. So, it is 18 - 12 + 7.

18 - 12 = 6. 6 + 7 = 13.

So, the expression is 18 - 12 + 7 and the answer is 13 degrees (i think)

4 0

2 years ago

Josh had $10 more than Carly, so he gave Carly half of his money. Then Carly had more money than josh, so she gave Josh $4. Then

DedPeter [7]

each person starts with $8.

<u>Step-by-step explanation:</u>

Here we have , Josh had $10 more than Carly, so he gave Carly half of his money. Then Carly had more money than josh, so she gave Josh $4. Then they both had $13. We need to find How much money did each person start . Let's find out:

Suppose Carly had $x , Josh had $10 more than Carly i.e. $(x+10), so he gave Carly half of his money i.e.

⇒ $\frac{x+10}{2}$ ,Now , Josh have $ $\frac{x+10}{2}$ & Carly have $x + \frac{x+10}{2}$ .

Then Carly had more money than josh, so she gave Josh $4 . So ,

Josh now have $ $(4+\frac{x+10}{2})$ and Carly now have $ $(x+\frac{x+10}{2} -4)$ . Since both are equal :

⇒ $(x+\frac{x+10}{2} -4) = (4+\frac{x+10}{2})$

⇒ $x-4 = 4$

⇒ $x=8$

Therefore , each person starts with $8.

8 0

3 years ago

A banana contains 105 calories. Last week, brendan and lea ate a total of 14 bananas. How many calories does this represent?

xeze [42]

Answer:

1470

Step-by-step explanation:

Multiply

3 0

2 years ago

The graph shows the amount of rainfall in a town in July over a

Rus_ich [418]

Answer:30%

Step-by-step explanation:

4 0

3 years ago

Find the value of x in the triangle shown below. one angle is 102 and the other angle is 48 and the third one is x

lora16 [44]

Answer:

Step-by-step explanation:

Since you know all the angles have to add up to 180 degrees, you add 102 and 48. That is 150. 180 degrees-150 degrees equals 30 degrees.

5 0

3 years ago

Read 2 more answers