3 years ago

Please help with math question below

2 answers:

5 0

Edges that are perpendicular to PR basically means what edges make a 90° angle with PR.

Those edges are HP , RA, TR and QP.

Hence, the answer is A, B and C.

mixer [17]3 years ago

3 0

I am pretty sure its qt

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<img src="https://tex.z-dn.net/?f=%5Clarge%5Csf%5Cfbox%5Cred%7BQuestion%3A-%7D" id="TexFormula1" title="\large\sf\fbox\red{Quest

tamaranim1 [39]

Answer:

The function is injective but nor surjective

Step-by-step explanation:

We see that:

f(x) = x³

For any x₁ and x₂ ∈ N,

f(x) = x₁³ = x₂³ ⇒ x₁ = x₂, both are natural numbers

It it confirmed one-to-one, hence it is injective

Check the surjectivity:

f(x) = y ∈ N

x³ = y
y = ∛x

Let y = 2, then:

2 = x³
x = ∛2 ∉ N

Since x is not natural, the function is not surjective

6 0

2 years ago

Read 2 more answers

yuma needs a singer. singer A is offering her services for an initial $50 in addition to $20 per hour. singer B is offering his

Damm [24]

50 + 20h = 100 + 10h
20h - 10h = 100 - 50
10h = 50
h = 50/10
h = 5 <== they will charge the same at 5 hrs

7 0

2 years ago

Which of the following lengths can be the sides of a triangle?

Dmitriy789 [7]

Answer:

C. 44 cm, 30cm, and 16 cm

Step-by-step explanation:

Sana nakatulong

7 0

3 years ago

Evaluate: if x = 3 and y = 6 x(2x + x2 – 8y + 16)

kumpel [21]

Answer:

-60

Step-by-step explanation:

Og problem: x(2x + 2x - 8y + 16)

Substitution: 3(6 + 6 - 48 + 16)

Solve: 3(12 - 48 + 16)

3(-36 + 16)

3(-20) = -60

3 0

3 years ago

Segments CD, GH, and JK intersect point A.

sladkih [1.3K]

Answer: HK

Step-by-step explanation:

4 0

2 years ago