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Semmy [17]
3 years ago
12

Find all the real square roots of -49

Mathematics
2 answers:
LenaWriter [7]3 years ago
8 0

Answer:

7i

Step-by-step explanation:

the square root of 49 is 7

i equals -1

7 squared times -1 equals -49

<h2><em><u>xoxo,</u></em></h2><h2><em><u>your highness...</u></em></h2>
mash [69]3 years ago
3 0

Answer:

-7

Step-by-step explanation:

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A set of furniture was sold for GH cedis 3000 at a profit of 25%. Find the cost price.
Sindrei [870]

Answer:

<h2>2400GH Cedis </h2>

Step-by-step explanation:

Selling \:price = 3000gh Cedis\\Profit \% = 25\%\\Cost\:price =?\\\\CP =\frac{ ( Selling\:price \times 100 )}{ ( 100 + percentage profit)}  \\\\C.P = \frac{3000\times 100 }{100+25}\\\\ C.P = \frac{300000}{125} \\\\Cost\: Price = 2400gh Cedis

8 0
3 years ago
Please help me this is for a grade
IgorC [24]

Answer:

b

Step-by-step explanation:

4 0
3 years ago
Is the relationship shown by the data linear? How can you tell if it is or is not? If so, model the data with an equation.
Marat540 [252]

Answer:

linear and y = 2x + 19

Step-by-step explanation:

the x- values increment by 2 and the values of y increment by 4

This indicates a linear relationship exists in the form

y = mx + c ( m is the slope and c the y-intercept )

m = \frac{rise}{run} = \frac{4}{2} = 2

y = 2x + c ← is the partial equation

to find c use any ordered pair from the table

using (- 5, 9 ), then

9 = - 10 + c ⇒ c = 9 + 10 = 19

y = 2x + 19 ← linear equation

As a check

x = - 7 : y = - 14 + 19 = 5 ← correct value of y

x = - 5 : y = - 10 + 19 = 9 ← correct value of y

x = - 3 : y = - 6 + 19 = 13 ← correct value of y

x = - 1 : y = - 2 + 19 = 17 ← correct value of y


4 0
3 years ago
What is the sum of -6 4/5 and 6 4/5
Damm [24]

Answer:

0.

Step-by-step explanation:

same value negative plus positive is 0

8 0
3 years ago
3/7 to its decimal form and rounded to the nearest thousandth
ELEN [110]

3/7 is 0.42857142857 in decimal form. Rounded to the thousands its 0.429

5 0
3 years ago
Read 2 more answers
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