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Vesna [10]
4 years ago
8

HELP ME PLAES JUST PLEASE AND THANK YOU

Mathematics
2 answers:
Tasya [4]4 years ago
5 0

Answer:

If that were a FULL circle then the area is PI * radius^2=

3.14159265 * 4 * 4 = 50.2654824

Since that is a semi-circle then the area is half of that or 25.1327412

Step-by-step explanation:

kompoz [17]4 years ago
4 0

Answer:

25.12 units^2

Step-by-step explanation:

The area of a semicircle is 1/2 the area of a full circle. The area of a full circle is pi*r^2, so the area of a semicircle is 1/2*pi*r^2.

1/2*(3.14)*4^2=0.5*3.14*16=25.12

Therefore, 25.12 units^2

I hope this helped and have a good rest of your day!

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The measure of angle a is twice the measure of angle b the measure of angle c is at least one degree more than the measure of an
Sphinxa [80]

Answer:

Step-by-step explanation:

The measure of angle a is twice the measure of angle b. This means that

a = 2b

The measure of angle c is at least one degree more than the measure of angle a. This means that

c ≥ a + 1

c ≥ 2b + 1

if the sum of the three angles is at least 61 degrees, it means that

a + b + c = 61 - - - - - - - - - - - - - 1

Substituting a = 2b and c = 2b + 1 into equation 1, it becomes

2b + b + 2b + 1 = 61

5b = 61 - 1 = 60

b = 60/5 = 12

c ≥ 2× 12 + 1

c ≥ 25

25 ≥ a + 1

25 - 1 ≥ a

24 ≥ a

a ≤ 24

Therefore, the range possible measurements for angle b is

b ≤ 12

4 0
3 years ago
What is the relationship between a conjecture, a theorem, and a two-column proof?
lidiya [134]

In mathematics, a proof is a deductive argument for a mathematical statement. In the argument, proven statements such as theorems, can be used. In principle, a proof can be traced back to self-evident or assumed statements, known as axioms. the two column proof uses data and theorems to carry out thorough proving.


4 0
3 years ago
Read 2 more answers
Find the area of circle having its radius 15cm​
muminat

Answer:

A≈706.86

Step-by-step explanation:

welcome to brainly

4 0
3 years ago
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Which of the following numbers is the least?
svlad2 [7]
0.67895 because they are all the exact same
3 0
3 years ago
Graph ​ −8+x=4y−16 ​ Use the line tool and select two points on the line.
dimulka [17.4K]

Answer:

The two ordered pairs you can use is (4, 3) and (8, 4). You can plot these and draw a straight line through these.

Step-by-step explanation:

In order to find the graph of the follow, first solve for y.

-8 + x = 4y - 16

-4y - 8 + x = -16

-4y -8 = -x - 16

-4y = -x - 8

y = 1/4x + 2

Now that we have this, we can find two points by choosing any two x's and solving for the y. For this case, we'll use 4 and 8.

y = 1/4x + 2

y = 1/4(4) + 2

y = 1 + 2

y = 3

So the first ordered pair is (4,3)

y = 1/4x + 2

y = 1/4(8) + 2

y = 2 + 2

y = 4

So the second would be (8. 4)

6 0
3 years ago
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