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
Lilit [14]
3 years ago
7

Need help asap pls!

Mathematics
1 answer:
dalvyx [7]3 years ago
7 0

Step-by-step explanation:

Diameter =30

radius=30/2=15

area =πr²

=π×15²

= π×(15)(15)

=225π cm² or 706.95cm²

circumference C=πD

C=3.142×30cm

C=30πcm or 94.26cm

You might be interested in
HELP ME WALLAHO HELP ME WALLAHI HELP
sergij07 [2.7K]

Answer:

13

Step-by-step explanation:

Draw a picture!

You have a right triangle with legs of 5 and 12.

By the Pythagorean Theorem, the hypotenuse is √(5²+12²) = 13

3 0
3 years ago
CAN SOMEONE PLEASE HELP PLEASE ITS HARD
vitfil [10]

Answer:

Its the first one

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Please help asap!!!!
bearhunter [10]

Answer:

(using substitution to solve the problem)

x=y-3

2x+y=12

2(y-3)+y=12

2y-6+y=12

3y=18

y=6

y=6

x=6-3

= (3, 6)

Step-by-step explanation:

using substitution, substitute the x in the second equation to y-3, to find the value of y. after that distribute the 2 into the parenthesis and collect like terms. once you simplify, you have the value of y, so substitute the value of y into the first equation to find x. once you have both values put them in the ordered pair form and you're done.

i hope this helps :)

3 0
3 years ago
30 POINTS Which is an x-intercept of the graph of the function y=cot(3x)?
Allisa [31]

Answer:

x=\frac{\pi}{6}

Step-by-step explanation:

Choices aren't given, so i will solve this equation and find the first positive x-intercept angle.

First, x-intercept means the x-cutting point of the graph. This occurs when y = 0. So we will solve the equation for x. Shown below:

y=Cot(3x)\\Cot(3x)=0\\ArcCot(Cot(3x))=ArcCot(0)\\3x=ArcCot(0)

Inverse Cotangent (ArcCot) of 0 is at  \frac{\pi}{2}, so we can now solve for x:

3x=ArcCot(0)\\3x=\frac{\pi}{2}\\x=\frac{\pi}{6}

So, the x-intercept is at x = pi/6

6 0
3 years ago
Read 2 more answers
What is the equation of this line in slope-intercept form?
Elis [28]

Answer:

y=-1/2x+2

Step-by-step explanation:

for x-intercept

put y=0

0= -1/2x+2

1/2x=2

x=4

(4,0)

for y-intercept

put x=0

y= 2

(0,2)

7 0
3 years ago
Read 2 more answers
Other questions:
  • Which is found in the highest concentration in the urine?
    10·1 answer
  • Harley is on a trip with her dad. Her dad tells her that they've traveled 182.6 miles and they are 83% of the way to their desti
    13·1 answer
  • Find the domain and range of y=-5x-1
    7·1 answer
  • Help plsssssssssssssssss I BEGGGGGG
    5·1 answer
  • you go into best buy to purchase a new TV and bring 500 with you.The TV cost 466 and there is a 7% sales tax. how much will u ha
    14·1 answer
  • Write an equation of the line that passes through (2,−5) and is parallel to the line 2y=3x+10.
    9·1 answer
  • During a winter sale,skirts are 15$ each and trousers and 20$ each. The skirts and trousers Shelly can buy for 100$
    5·1 answer
  • PLSSSSSS HELPPPP PLSSSSS 80 POINTSSSS PLSSSSSS
    9·2 answers
  • 4 rows with circles and triangles, left to right. Row 1, circle, triangle, 2 circles, triangle. Row 2, triangle, circle, 2 trian
    6·1 answer
  • A sports club rewards teams based on overall points earned in a season. The data for points are shown in the table, where Low re
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!