2 years ago

I need help can you help me pls

Mathematics

1 answer:

dedylja [7]2 years ago

4 0

Answer:

1 and 3

Step-by-step explanation:

They are across from each other making them vertical angles.

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Given the functions k(x) = 5x − 8 and p(x) = x − 4, solve k[p(x)] and select the correct answer below.

Mazyrski [523]

P(x) = x-4

k(x-4) = 5(x-4) - 8 = 5x - 28

So the answer is 2

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2 years 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

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

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2 years ago

Using the distributive property,simplify the following: 5(x+2)

MArishka [77]

The answer is 5x + 10 because you have to times 5 by everything in the parenteses

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3 years ago

Choose all the expressions that are equivalent to 12 + 14x – 24x + 3

faltersainse [42]

Answer:

Just combine the x

Step-by-step explanation:

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2 years ago

2) The senior classes at High School A and High School B planned separate trips to the local

Karo-lina-s [1.5K]

Answer:

D) Van: 7, Bus: 20

Step-by-step explanation:

Add the amount of students together (455 students in total)

Then I added the amount of buses and vans together (5 Vans and 21 Buses)

Then I plugged in each answer

5 x 7 = 35

455 - 35 = 420

420 / 21 = 20

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3 years ago