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miv72 [106K]
4 years ago
13

How do I simply this radical expression?

Mathematics
1 answer:
Karolina [17]4 years ago
4 0

Answer:

1000±100\sqrt{55}

Step-by-step explanation:

To simplify that expression, first we need to find the largest common of the expression inside the radical, in this case: 2.200.000.

We know that 2.200.000 = 2 · 2 · 2 · 2 · 2 · 2 · 5 · 5 · 5 · 5 · 5 · 11 = 2^{6} ×5^{5}× 11

Now, \sqrt{2^{6}5^{5}11} = 200\sqrt{55}.

Now we have: \frac{2000±200\sqrt{55}}{2}

Dividing by 2: 1000±100\sqrt{55}

So the simplified expression is: 1000±100\sqrt{55}

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I think its 2/8 but I'm not sure
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4 years ago
12(x-3)+18= what is the awnser
Mila [183]

Answer:

32

Step-by-step explanation:

The answer would be 32:);)

7 0
3 years ago
(3x1,000,000)+(3x1000,000)+(2x100)
Brrunno [24]
3 × 1,000,000 = 3,000,000
2 × 100 = 200

(3×1,000,000) + (3×1,000,000) + (2×100)
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8 0
3 years ago
Factor (z-5) (z+4)=52​
stich3 [128]

Answer:

\large\boxed{(z-9)(z+8)=0\to z=9,\ z=-8}

Step-by-step explanation:

(z-5)(z+4)=52\qquad\text{use FOIL}:\ (a+b)(c+d)=ac+ad+bc+bd\\\\(z)(z)+(z)(4)+(-5)(z)+(-5)(4)=52\\\\z^2+4z-5z-20=52\qquad\text{subtract 52 from both sides}\\\\z^2-z-72=0\\\\z^2-9z+8z-72=0\\\\z(z-9)+8(z-9)=0\\\\(z-9)(z+8)=0\iff z-9=0\ \vee\ z+8=0\\\\z=9\ \vee\ z=-8

4 0
4 years ago
A student performed the following steps to find the solution to the equation
rusak2 [61]

Answer:

D

Step-by-step explanation:

step 2 : x + 3 = 0 and x - 5 = 0 ← correct

step 3

x = 3 and x = - 5 ← error made here with signs, correct statement should be

x + 3 = 0 ⇒ x = - 3

x - 5 = 0 ⇒ x = 5

3 0
2 years ago
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