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fgiga [73]
3 years ago
8

Can someone help me with this

Mathematics
1 answer:
drek231 [11]3 years ago
7 0
The answer would be letter B
You might be interested in
Is x^ 2 - 16 the difference between two squares? Why?
bearhunter [10]

Answer:

x1= -4

x2 = 4

Step-by-step explanation:

Set the equation equal to zero

x2 − 16 = 0

then

(x + 4)(x − 4) = 0

(x+4)= 0 which is equal to -4

and

(x-4)= 0 equals 4

3 0
3 years ago
Read 2 more answers
a shopkeeper bought two watches for rs 400.he sold them to gain 5% profit on one and another at 5% loss on other.calculate his f
jekas [21]

Answer:

0.25 % loss.

Step-by-step explanation:

Let the cost of 1 watch be  rs x then the cost of the other is rs 400 - x.

Let the sp be rs y.

So we have:

y = x + 0.05x

y = (400 - x) - 0.05(400 - x)

y =  400 - x - 20 + 0.05x

y = 380 - 0.95x

So  x + 0.05x = 380 - 0.95x

2x = 380

x = 190.

and y = 190 + 0.05*190 = 199.5.

So the total selling price = 2 * 199.5 = rs 399

So final loss is [ (400-399)/ 400] * 100

= 0.25 %.

8 0
3 years ago
The value of y varies directly as x and y is 9 when x is -3 what constant of variation k?
Lady bird [3.3K]
Y/x=k

when y=9, then x= -3
        9/-3=-3
⇒ k= -3
7 0
2 years ago
How would you symplify 5 and the square root of 90?<br><br> Please show steps
myrzilka [38]
First you have to find the square root of 90 which is about 9.5
now multiply, divide, add, or subtract 5 from 9.5 to get your answer.
8 0
3 years ago
Sea f(x) = 5x + 3 entonces f(6) = ?
sesenic [268]

Answer:

f(6)=33

Step-by-step explanation:

f(6)=5(6)+3

f(6)=30+3

f(6)=33

7 0
3 years ago
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