1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
allsm [11]
2 years ago
8

What is the area of a circle with a diameter of 36 millimeters?

Mathematics
2 answers:
Aleonysh [2.5K]2 years ago
6 0
1st step is to find the radius, then substitute into the formula for area of a circle 

A = \pi r^2~~~~~~r = radius

to find the radius, just halve the diameter
klemol [59]2 years ago
4 0
<span>1017.88 is the diameter of 36 millimeters.</span>
You might be interested in
Point A lies on the circle and has an x-coordinate of 1..
Neko [114]

Answer:

the last one

Step-by-step explanation:

because the distance/length formula is applied here so you just need to rearrange the coordinates in to the formula

6 0
2 years ago
A chemist has two alloys, one of which is 5% gold and 20% lead and the other which is 30% gold and 50% lead. How many grams of e
dmitriy555 [2]

The amount of the first alloy is 450 grams and the amount of the second alloy is 30 grams.

<h3>What is a linear equation?</h3>

It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.

If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.

We have:

A chemist has two alloys, one of which is 5% gold and 20% lead and the other which is 30% gold and 50% lead.

Let's suppose the x is the amount of the first alloy and y is the amount of the second alloy:

We can make two linear equation in two variables:

0.05x + 0.3y = 31.5  ...(1)

0.2x + 0.5y = 105  ...(2)

After solving the above two linear equations by substitution method, we get:

x = 450 grams

y = 30 grams

Thus, the amount of the first alloy is 450 grams and the amount of the second alloy is 30 grams.

Learn more about the linear equation here:

brainly.com/question/11897796

#SPJ1

3 0
2 years ago
Show that x+y:x-y=3:2
ycow [4]

We have,

x+y:x-y=3:2

To prove that, x+ y : x - y = 3:2.

x+y=3  

And,

x+y = 2      

Adding (1) and (2), we get

x+y+x-y=3+2

⇒2x=5

⇒ x =

Put x =  in (1), we get

+y=3

⇒ y=3-=

x+y:x-y=

=3:2

So, x+y:x-y=3:2.

8 0
2 years ago
2/3(3/5x+9)=1/2(2x+40)<br><br> I posted this before but w/o the 1/2 on accident
andriy [413]
The answer and working are shown in the photo below
5 0
2 years ago
Which expression is equivalent to 3x - (2x + 4) + 5?<br> x+1<br> x + 9<br> 5x + 9<br> 5x + 1
azamat

Answer:

x + 1

Step-by-step explanation:

3x - (2x + 4) + 5

3x - 2x - 4 + 5

x - 4 + 5

x + 1

7 0
2 years ago
Other questions:
  • explain why is it important to line up decimals numbers by their place value when you add or subtract them
    12·2 answers
  • Please Help!!!
    8·1 answer
  • At a store, apples cost $0.80 $0.80 each and oranges cost $0.95 $0.95 each. Harry buys some apples and oranges and spends $9.55
    8·1 answer
  • Which expression represents the area of the remaining
    7·2 answers
  • Which of the following numbers is rational?<br> OA) 7.885<br> OB) IT<br> OC) 0.144<br> OD 91
    12·1 answer
  • U Move It charges $16 per hour plus a fueling fee of $25 to rent a truck. Jamarcus needs to rent a truck and can spend no more t
    7·1 answer
  • According to the Associative Property, which expression is equal to (14)(6)(3x)?
    8·1 answer
  • Using the following triangle, write a proof to verify that sinA/a=sinC/c
    14·1 answer
  • Order from least to greatest<br> 11. 357<br> 2. 1.02<br> 13. .80<br> 4. .002<br> 15. .05<br> 16. .40
    5·1 answer
  • If x = 4 and y = -2, the value of 3 xy?​
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!