3 years ago

Determine if 16 is rational or irrational and give a reason for your answer.

1 answer:

6 0

16 is a rational number, this is because it is a full whole number, it can be a fraction or a ratio, for this reason we know 16 has to be rational

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-3x-7 ≤11 solve, please

Rom4ik [11]

Answer:

x ≥ -6

Step-by-step explanation:

-3x-7 ≤ 11

-3x-7+7 ≤ 11+7

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(-3x)(1) ≤ 18(-1)

3x ≤ -183x/3 ≤ -18/3

7 0

3 years ago

Can somebody please help with these two questions?

Nitella [24]

Answer:

#3: x is approximately 0.37, -5.37, #4: x is approximately 4.19, -1.19

Step-by-step explanation:

You can solve using the quadratic equation or by solving with the perfect square

$\frac{-b+/-\sqrt{b^{2}-4ac} }{2a}$ = $x^{2}+5x-2=0\\ \frac{-5+/-\sqrt{5^{2}-4(1)(-2) }}{2(1)}$

x is approximately 0.37, -5.37

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3 years ago

The line l passes through the point P = (1,-1,1) and has direction vector d = [2,3,1]. Determine whether l and the plane 4x-y+5z

suter [353]

Hello :
the normal vector of the plane is : d' = [4,-1,5]...(vector perpendicular to the plane)
d ⊥ d' because : (4)(2)+(-1)(3)+(5)(1)=0
the line is perpendicular to the plane .

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3 years ago

Write and solve a problem involving money that can be solved with a multiplication equation

alexandr1967 [171]

Answer:

Step-by-step explanation:

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3 years ago

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laiz [17]

Answer:

Step-by-step explanation:

=-9+7i+5+i

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5 0

3 years ago

Read 2 more answers