Which expression is equal to 2√27 A: -6√3 B: 6i√3 C: -6i√3 D: 6√3i

Mathematics

2 answers:

nataly862011 [7]3 years ago

7 0

Answer:

Step-by-step explanation:

Kazeer [188]3 years ago

4 0

Answer:

6√3i.

Step-by-step explanation:

2√-27

= 2√9√-3

= 2*3√-3

= 6√3i.

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Boyd's car can travel 1891.5 miles on 48.5 gallons of fuel. how many miles can it travel on 64 gallons?

astra-53 [7]

Steps:
*Find the unit rate*
1) 1,892.5/ 48.5 = 39

*Multiply it by 64*
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So, Boyd's car will travel 2,496 miles on 64 gallons of fuel.

7 0

3 years ago

Fine the value of X

makvit [3.9K]

Answer:

Step-by-step explanation:

60/40=3/2

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8 0

3 years ago

Read 2 more answers

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lbvjy [14]

Step-by-step explanation:

Given bi-quadratic equation is:

$x^4+95x^2 -500=0$

Substituting $x^2=a,$ given bi-quadratic equation reduces in the form of following quadratic equation:

$a^2 +95a -500=0\\$

Let us factorize the above quadratic equation:

$a^2 +95a -500=0\\\therefore\: a^2 +100a -5a-500=0\\\therefore\: a(a +100) -5(a+100)=0\\\therefore\: (a +100)(a -5)=0\\\therefore\: (a +100)=0\:\: or \:\: (a -5)=0\\\therefore\: a = - 100\:\: or \:\: a = 5\\\\CASE\: (1)\:\\When\: a = - 100 \implies x^2 = - 100\\\therefore x=\pm \sqrt{-100}\\$