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photoshop1234 [79]
3 years ago
5

The product of a number (n-1) and the number (n+1) is always equal to ?

Mathematics
1 answer:
wolverine [178]3 years ago
5 0
It is an identity n^2-1. That is n square minus 1
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Which expression shows a way to find 20% of 950? Please I need help thanks.
wolverine [178]

Answer:

the answer of the expression is 190

Step-by-step explanation:

Given expression as :

20 % of 950

Or, \frac{20}{100} times 950

Or, \frac{20}{100} × 950

Or, 20 × \frac{950}{100}

or, 20 × 9.5

∴ 190

7 0
3 years ago
This is a question on mean and mediator thats due in 15min
luda_lava [24]

Answer:

mean = 15. 14 or 15

median= 14

range = 25

5 0
3 years ago
What is the sum of the roots of the quadratic equation x²+6x-14=0?​
aivan3 [116]

Answer:

<h3>Sum of Roots =<u> (-8)</u><u> </u><u> </u></h3><h3>Product of Roots = <u> </u><u> </u><u>(-84)</u><u> </u><u> </u></h3>

Step-by-step explanation:

{x}^{2}  + 6x - 14 = 0

Roots :- 6 and -14

Sum of the roots :

[6 + (-14)]

= (-8)//

Product of the roots :

[(6)(-14)]

= (-84)//

8 0
2 years ago
Helppppo please due tomorrow
otez555 [7]

Answer:

Answer B:  10.12

Step-by-step explanation:

Let the numbers be represented by a, b and c.  Their sum is 44.84.  The number a is 24.6.  Further, assume that b = c.

Then 24.6 + b + b = 44.84.

Let's isolate 2b:

Subtract 24.6 from both sides of this equation, obtaining:

2b = 20.24.

Finally, divide both sides of this equation by 2.  We get b = 10.12.

This corresponds with Answer B.

5 0
2 years ago
63/10 equivalent mixed number
Fittoniya [83]
Hello!





hope I helped
8 0
3 years ago
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