3 years ago

Please help me out and explain it to me

1 answer:

KIM [24]3 years ago

8 0

Answer:

−b±√b2−4ac

−(−6)±√(−6)2−4(2)(5)

2(2)

6±√−4

Step-by-step explanation:

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Fittoniya [83]

I assume you mean divide using the conjugate to rationalize the denominator and express the result in standard rectangular form.

$\dfrac{2+i}{1+i} = \dfrac{2+i}{1+i} \cdot \dfrac{1-i}{1-i} = \dfrac{2(1)-i^2-2i+i}{1^2+1^2} = \frac 3 2 - \frac 1 2 i$

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3 years ago

aleksley [76]

Circumference = 2*pi*r = 27"
Solve for r
r=27"/(2*pi)
=27"/(2*3.14159265)
=4.297..."
=4.30" (to the nearest hundredth of an inch)

7 0

3 years ago

beks73 [17]

Well it is true if the problem is the right with the right answer. If not you have a false eqaution.

4 0

3 years ago

barxatty [35]

You move the decimal to the left three places, so it is 10³

2.5 * 10³

Hope this helped :)

8 0

2 years ago

pentagon [3]

That is correct I think it is

4 0

3 years ago

Please help me out and explain it to me​