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2 years ago

Express the radical using the imaginary unit i

Mathematics

1 answer:

diamong [38]2 years ago

6 0

Answer:

$i$ $\sqrt{30}$

Step-by-step explanation:

$\sqrt{-30}$

= $\sqrt{30 * -1}$

= $\sqrt{30} * \sqrt{-1}$ Separate the two numbers into 2 radicals.

= $i\sqrt{30}$ Simplify, knowing that $i = \sqrt{-1}$ .

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The sum of a whole number and twice the square of the number is 10. Find the number.

sveticcg [70]

Answer:

x = $\frac{10}{1 + 2x}$

Step-by-step explanation:

Let the number be x

x + 2x² = 10

Factorize x + 2x²

x(1 + 2x) = 10

Divide both sides by (1 + 2x)

x = $\frac{10}{1 + 2x}$

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3 years ago

The probability of raining on Saturday is 0.09. If today is Saturday, then find the

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I Think it is A

Step-by-step explanation:

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2 years ago

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3 years ago

Read 2 more answers

PLEASE HELP ASAP!!

murzikaleks [220]

Answer:

Hi,

Step-by-step explanation:

x>=0

y>=0

x+y-5<=0 line passing through (0,5) and (5,0) with (0,0) in minus region

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Answer C

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2 years ago

Three machines A, B, and C produce 55%, 25% and 20% respectively. The percentages of defective output are 3.5%, 4.5% and 5.5%. I

pishuonlain [190]

We are given the following information concerning the three production machines;

$\begin{gathered} Of\text{ the total production;} \\ A=55\text{ \%}=0.55 \\ B=25\text{ \%}=0.25 \\ C=20\text{ \%}=0.20 \end{gathered}$

Also, we are given the percentage of defective output as follows;

$\begin{gathered} A=3.5\text{ \%}=0.035 \\ B=4.5\text{ \%}=0.045 \\ C=5.5\text{ \%}=0.055 \end{gathered}$

Therefore, if an item is selected randomly, the probability that the item is defective would be;

$\begin{gathered} P\lbrack defective\rbrack=(0.55\times0.035)+(0.25\times0.045)+(0.20\times0.055) \\ P\lbrack\text{defective\rbrack}=0.01925+0.01125+0.011 \\ P\lbrack\text{defective\rbrack}=0.0415 \end{gathered}$

ANSWER:

The probability that the item is defective would be 0.0415

6 0

10 months ago