3 years ago

- The expression below shows a number in

Mathematics

1 answer:

VARVARA [1.3K]3 years ago

3 0

B is the answer so if you want to know you can tell me if it is wrong

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if the reference angle was . what are the angle in the 4 quadrants. make sure to explain how you get the angles.

yKpoI14uk [10]

Answer:

Step-by-step explanation:

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1 year ago

Explain whether the following given sets are closed under addition:

Ivan

Answer:

Step-by-step explanation:

a) Yes.

$\forall\ a,b\ \in\ B,\ a+b\in B\ (since\ 0+0=0)$

b) Yes

$W=\{0,1,2,3,..,\}\ (whole\ numbers)\\\forall\ a,b\ \in\ 3W,\ a+b\in 3W\\since:\\a\ \in\ 3W \Longrightarrow\ \exists\ k_1\in W | a=3*k_1\\\\b\ \in\ 3W \Longrightarrow\ \exists\ k_2\in W | b=3*k_2\\\\a+b=3*k_1+3*k_2=3*(k_1+k_2) \in 3W\\$

c) Yes

$\forall n\ \in\ \mathbb{N}: \Longrightarrow\ n+1 \in\ \mathbb{N}\\$

d) No

$3\in V , 3+3=6\notin V\\$

7 0

3 years ago

What is the circle's circumference? The diameter of a circle is 6 millimetres.

dolphi86 [110]

Answer:

C = 6pi or approximately 18.84 mm

Step-by-step explanation:

The circumference of a circle is

C = pi *d

C = pi *6

We can approximate pi by 3.14

C = 3.14*6

C =18.84

6 0

3 years ago

Two times p plus five is greater than or equal to three times p minus ten

hjlf

Answer:

2p + 5 ≥ 3p - 10

Step-by-step explanation:

7 0

3 years ago

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I need help with this lol

harina [27]

Answer:

75.2

Step-by-step explanation:

16 x 9.4 = 150.4 / 2 = 75.2

7 0

3 years ago

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