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tigry1 [53]
3 years ago
12

Please Help ASAP! Simplify roots of negative numbers. Express your answer in simplified form.

Mathematics
1 answer:
Korolek [52]3 years ago
7 0

Answer:

3i\sqrt2

Step-by-step explanation:

We can rewrite the square root of negative 18 as \sqrt{18} \cdot\sqrt{-1}. We can evaluate these two quantities separately. The square root of 18 can be factored to get 3 squared times 2. We can take the 3 out to get 3\sqrt2. Now, the square root of negative one can be rewritten as i, so this is equal to 3i\sqrt2

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4# is a two digit number ,where # represents the digit at ones place . 7999 ÷ 4# lies between ---------
Hitman42 [59]

Answer:

7999 \div 4\# lies between 163.245 and 199.975

Step-by-step explanation:

Given

2 digit = 4#

Required

The range of 7999 \div 4\#

Let

\# = 0 --- the smallest possible value of #

So:

7999 \div 40 = 199.975

Let

\# = 9 --- the largest possible value of #

So:

7999 \div 49 = 163.245

<em>Hence, </em>7999 \div 4\#<em> lies between 163.245 and 199.975</em>

4 0
3 years ago
4x + y&lt; 2
bulgar [2K]

The two inequalities can be rewritten as

\begin{cases}y-2\end{cases}

The solution is composed by every point below the graph of the line y=-4x+2, and above the horizontal line y=-2

To draw the line y=-4x+2 we can build a little table (only 2 points are required):

\begin{array}{c|c}x&y\\0&2\\1&-2\end{array}

So, if you draw the points (0,2) and (1, -2) and connect them, you'll have your line.

To draw the line y=-2, simply pick any point with y coordinate -2, for example (0, -2), and draw a horizontal line.

Choose the above/below areas as specified above to solve the system.

5 0
3 years ago
John is creating crafts that require 4 2/5 inches of string each. If the string comes in a 50ft spool, how many items can he mak
Elena L [17]

Answer:

B

Step-by-step explanation:

12 in = 1 ft

600 in = 50ft

600\div 4\frac{2}{5} =

600÷4.4 =

136.3636363...≈136

7 0
3 years ago
Read 2 more answers
a persons salary is $2,500 per month. she received a 10% raise. What is her new salary in dollars per month?
Nadya [2.5K]

Answer:

2750

Step-by-step explanation:

10% of 2500 is 250

250 + 2500 = 2750

5 0
3 years ago
When estimating a square root, how do you find the numerator in your fraction of your estimation?
Tasya [4]

Answer:

To get your numerator you subtract the first two numbers, 63 - 49 = 14. That leaves you with 14 over 15 or . 93. Since the square root of 63 is higher than 7 but less than 8 your whole number is 7

4 0
3 years ago
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