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stich3 [128]
3 years ago
5

X^2 - 2x - 63 = 0 Complete the square

Mathematics
1 answer:
masha68 [24]3 years ago
4 0

Answer

x=9,-7

Step-by-step explanation:

Using the formula (b/2)^2 to create a new term and then solve x

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Suppose that y varies inversely with x.Write an equation for the inverse variation Y=4 when x=7
myrzilka [38]

Answer:

If y varies inversely as x, then we write it as:

y = k/x


where k is some constant.


If we multiply both sides of this equation by x we get an equation for k:

k = x*y


We are given that y=4 when x=7, therefore:

k = 7*4 = 28


Put this back into our original equation to get:

y = 28/x



4 0
3 years ago
Can yall help me plz<br>-​
Lera25 [3.4K]

Answer:

B

Step-by-step explanation:

Because the numbers are less than 45 and more than 40

3 0
3 years ago
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Find all the real cube roots of 1000/27 <br><br><br> 10/3 <br> 10/9 <br> -10/9 <br> -10/3
gulaghasi [49]
Can you do prime factoriztion

1000
100 * 10
10 * 10 * 10

27
9 * 3
3 * 3 * 3

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7 0
3 years ago
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Choose the equation that best represents the equation of the graph of f(x) = 3^x +4.
Alchen [17]
The answer would be D
4 0
3 years ago
a total of $9500 is invested, part at 10% simple interest and part at 9%. if the total annual return from the two investments is
Nutka1998 [239]

a total of $9500 is invested, part at 10% simple interest and part at 9%

if the total annual return from the two investments is $914.00

Amount invested = 9500

Total amount return means total yield = $914

Let x amount  is invested at 10% simple interest

Interest for first part =  10 % times x = 0.10x

Remaining part invested is 9500 -x

Interest for remaining amount = 9% (9500 -x) = 0.09(9500-x)

Total interest yield is 914. Now we frame an equation

0.10x + 0.09(9500-x) = 914

0.10x +855 - 0.09x = 914 (combine like terms)

0.01 x + 855 = 914 (subtract 855)

0.01x = 59 ( divide both sides by 0.01)

So x = 5900

$5900 is invested in 10% simple interest

9500 - 5900 = $3600 is invested in 9% simple interest


3 0
3 years ago
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