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
dalvyx [7]
3 years ago
13

Could you help me plz

Mathematics
1 answer:
Nadya [2.5K]3 years ago
6 0

Answer:

Step-by-step explanation:

(For a circle)

Circumference formula: π*2r

Area formula: π*r^2

1:

A)

π*2(3) =>6π=>18.84 m

B)

π*(3)^2=>9π=>28.27 m^2

2.

A)

π*2(3.1)=>6.2π=>19.47 m

B)

π*(3.1)^2=>9.61π=>30.19 m^2

You might be interested in
Can someone help me with variable expressions
EastWind [94]
You get the product by multiplying...in this case you want to double the product of j and 8 so:

2(8*j)

2(8j)

16j
4 0
3 years ago
If a car is moving with an average velocity of 25 m/s how long will it take the car to travel 1500m
Bond [772]

Answer:

Step-by-step explanation:

60m/s

8 0
3 years ago
Read 2 more answers
If the length of the 45° region of this circle is 10 inches, what is the radius of the circle? Use and round to the nearest tent
USPshnik [31]

Answer:

12.71in

step explanation:

The Length of an arc given is expressed as;

A = theta/360 * 2πr

10 = 45/360 * 2 * 3.14r

10 = 1/8 * 6.28r

Cross multiply

10 * 8 = 6.28r

80 = 6.28r

r = 80/6.28

r = 12.74in

Hence the radius is 12.71in

8 0
3 years ago
What is 5x-5=9x+3 ?????????????????????????
aev [14]

Answer:

x=-2

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Factor the binomial 9t to second power,-4 =
Naily [24]

Using subtraction of perfect squares, it is found that the factored expression is:

9t² - 4 = (3t - 2)(3t + 2).

<h3>What is the subtraction of perfect squares factoring?</h3>

It is given as follows:

a^2 - b^2 = (a - b)(a + b)

In this problem, the binomial is given as follows:

9t² - 4.

Hence:

  • a² = 9t² -> a = 3t.
  • b² = 4 -> b = 2.

Hence the factored expression is:

9t² - 4 = (3t - 2)(3t + 2).

More can be learned about subtraction of perfect squares at brainly.com/question/16948935

#SPJ1

3 0
2 years ago
Other questions:
  • Steven earns extra money babysitting. He charges $31.25 for 5 hours and $50 for 8 hours..
    13·1 answer
  • Choose the equation of a line that goes through the points (6, -2), (6, -6) and (6,0)
    14·1 answer
  • A hellium filled blimp stays aloft
    5·2 answers
  • Which cross-sectional shapes do you find the most surprising? Which shapes do you find the least surprising? Explain why.
    13·1 answer
  • How would you prove that angle 1 is congruent to angle 4?
    9·1 answer
  • Someone pls pls pls help me​
    6·2 answers
  • I'm really nervous because I have a big test in 10 minutes; what are your most effective strategies to calm down? any tips?
    6·1 answer
  • Write an<br> explicit formula for an, the nth term of the sequence 15, 25, 35, ....
    10·1 answer
  • Kevin has the same number of 48¢ stamps as 5¢ stamps. The total value of the stamps is $16.96. How many stamps of each kind does
    8·1 answer
  • There is a bag filled with 3 blue and 5 red marbles.
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!