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Svetllana [295]
3 years ago
14

What is the square root of negative 64?

Mathematics
2 answers:
velikii [3]3 years ago
8 0

Answer: 8 i

Step-by-step explanation: The square root of negative 64 is 8 i. Whenever you are finding a negative square root you need to find what times what will equal that number. 8 x 8 = 64. So the square root is 8. But, since we are finding a negative square root, the answer will be 8 i. i states that 8 is the negative square root of 64.

So the answer is 8 i.

Always add i after the number when finding negative square roots.

aleksandrvk [35]3 years ago
4 0
The answer should be 8 i
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dangina [55]

4 x U(unit price) = $43.80

U = 43.80 / 4

U = 10.95$

7 x 10.95 = 76.65$

8 0
3 years ago
Mr. Hamilton decorates his U.S. History classroom by putting up pictures of the presidents. The wall is 9.75 feet long. In the c
Archy [21]

Answer:

8 pictures

Step-by-step explanation:

Given

Window = 5\frac{3}{4}ft

Wall = 9.75ft

Pictures = 6\ inches

Required

Determine the number of pictures

First, we need to calculate the length of the available space

This is calculated by subtracting the width of the window from the width of the wall.

Space = Wall - Window

Space = 9.75 - 5\frac{3}{4}

Convert fraction to decimal

Space = 9.75 - 5.75

Space = 4ft

Since, the pictures are placed side by side.

This means that, there's no empty space between them.

Number of pictures is:

Number = \frac{Space}{Pictures}

Number = \frac{4\ ft}{6\ in}

Convert feet to inches

Number = \frac{4 * 12\ in}{6\ in}

Number = \frac{48\ in}{6\ in}

Number = \frac{48}{6}

Number = 8

<em>Hence, 8 pictures can fit the wall</em>

7 0
3 years ago
Read 2 more answers
Find the volume of the right circular cone
sergiy2304 [10]
Volume of right circular cone = 1/3 πr^2h
3 0
3 years ago
If there are 6 pigs and you take away 1, how many pigs are left?
MrMuchimi

<em>6</em><em>-</em><em>1</em>

<em>=</em><em>5</em>

<em>F</em><em>i</em><em>v</em><em>e</em><em> </em><em>pi</em><em>g</em><em>s</em><em> </em><em>are</em><em> </em><em>left</em><em>.</em><em>.</em><em>.</em>

3 0
3 years ago
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A mother wants to invest ​$6000 for her​ children's education. She invests a portion of the money in a bank certificate of depos
mariarad [96]

Answer:

Money invested in CD account: $2000

Money Invested in Savings Bond: $4000

Step-by-step explanation:

Given

Total amount=$6000

Let  

x be the amount invested in CD at 4%

And

6000-x be the remaining amount invested in savings bond at 7%

So mathematically writing

0.04x+0.07(6000-x)=360

0.04x+420-0.07x=360

-0.03x+420=360

-0.03x=360-420

-0.03x= -60

x= -60/(-0.03)

x=$2000

So the amount invested in CD is $2000.

And the amount invested in savings bond is:

=6000-x

=6000-2000

=$4000  ..

8 0
3 years ago
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