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Andrei [34K]
3 years ago
10

Which are solutions of the equation x2 - 16 = 0? Check all that apply.

Mathematics
1 answer:
maw [93]3 years ago
4 0
X=8.
Let me explain.
2x-16=0
add 16 to both sides
2x=16
divide both sides by 2
x=8
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Which algebraic expression is a polynomial with a degree of 2? 4x3 − 2x 10x2 − StartRoot x EndRoot 8x3+ StartFraction 5 Over x E
kati45 [8]

Answer:

6x^2 - 6x + 5

Step-by-step explanation:

Given

List of Options

Required

Which of the options has a degree of 2

The general format of a polynomial is

ax^n + bx^{n-1} + ..... + cx^{n-n}

<em>Where n represents the degree </em>

In this case;

n = 2

Substitute 2 for n in expression above;

ax^n + bx^{n-1} + ..... + cx^{n-n}

ax^2 + bx^{2-1} + ..... + cx^{2-2}

ax^2 + bx^{1} + ..... + cx^{0}

ax^2 + bx + c *1

ax^2 + bx + c

Comparing this format to the list of given options; the option with the same format is: 6x^2 - 6x + 5

Where a = 6; b = -6 and c = 5

<em>Hence, the polynomial with a degree of 2 is </em>6x^2 - 6x + 5

6 0
3 years ago
Read 2 more answers
5+3h-(h-5)+12h can you solve it?
Viefleur [7K]
= 5 + 3h - (h-5) + 12h
= 5 + 3h - h + 5 + 12h
= 5+5 +3h + 12h-h
= 10 + 14h

So, your final answer is 10+14h

Hope this helps!
8 0
3 years ago
In the diagram, VW = 3, WX = 4, and VX = 8. Is line WX tangent to point V?
anastassius [24]
No. If line WX would have been a tangent, the angle VWX should have been 90 degrees. If it would have been 90 degrees, using the pythagoras theorem, side VX should have been 5. But it's not 5, neither angle VWX is 90 degrees nor is the line WX a tangent to the circle
7 0
3 years ago
Helpppppp
Luden [163]
Alright, Part A. 
This would be 5x + 4x + 5x +4x = 360. This is because all the angles in a parallelogram add up to 360. The other two angles are not unknown, as they correspond with the known angles of 4x and 5x, thus we get all angles.

So add all angles together and we get 18x = 360. We then do x =360/18, thus x = 20. So the answer is C.

Now for the angles, we will have to do the value of the x (which is 20) multiplied by the coefficient (the number in front of the x). So we do 20*4 = 80 and 20*5 = 100. So the answer must be C.
8 0
4 years ago
Read 2 more answers
I need a step by step explanation please ​
Paul [167]
So that ya that cool pog moment I need to answer a question so I can ask a question
6 0
3 years ago
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