4 years ago

I need help answer please

Mathematics

1 answer:

Alex4 years ago

5 0

What do you need help on no question is asked?

You might be interested in

. A certain coin is a circle with diameter 18 mm. What is the exact area of either face of the coin in terms of p?

vitfil [10]

Answer:

$r =\frac{D}{2}=\frac{18mm}{2}= 9mm$

The area is given by:

$A= \pi r^2$

And replacing we got:

$A=\pi (9mm)^2 =81\pi mm^2$

So then we can conclude that the area of the coin is $81\pi$ mm^2

Step-by-step explanation:

For this case we know that we have a coin with a diamter of $D =18mm$ , and by definition the radius is given by:

$r =\frac{D}{2}=\frac{18mm}{2}= 9mm$

The area is given by:

$A= \pi r^2$

And replacing we got:

$A=\pi (9mm)^2 =81\pi mm^2$

So then we can conclude that the area of the coin is $81\pi$ mm^2

4 0

3 years ago

Which equation can be used to solve for x in the following diagram? x° and (6x - 15)°

polet [3.4K]

Answer:

= A

explanation :

the angle are right angle triangle which means it is always 90°

8 0

3 years ago

Your goal this week is to be online for a mean of only 60 minutes per day. For the first six days of the week, you are online 70

8_murik_8 [283]

60*7=420
70+60+65+40+78+62=375
420-375=45
You can only be online for 45 minutes on the seventh day to reach your goal

4 0

4 years ago

Read 2 more answers

I need help. I don't understand this question.

Sergeu [11.5K]

Answer:

p=25

Step-by-step explanation:

-5[-9=- $\frac{p}{5}$ -4] Get rid of the fraction by multiplying the whole equation by -5.

45=p+20 Then, subtract 20 from both sides.

25=p

4 0

3 years ago

Read 2 more answers

Subract 5 3/4 - 2 7/8

vovangra [49]

Answer:

2.875

Step-by-step explanation:

you have to change them into decimals. so 5 3/4 would be 5.75 and 2 7/8 would be 2.875. once you do that you can subtract

5 0

3 years ago