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timurjin [86]
3 years ago
5

Evaluate the following using identity

Mathematics
1 answer:
Firdavs [7]3 years ago
5 0

Answer:

refer to the picture attached for steps

hope it helps

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What is the factor trees for 81?
Nikitich [7]
I have attached it:

7 0
4 years ago
Read 2 more answers
y=x^-5 A) translate 5 units down B) translate 5 units up C) translate 5 units left D translate 5 units right
RSB [31]

Answer:

translates 5 units down

Step-by-step explanation:

anything that isn't attached to x would be a change to y

in this case, - 5 is being refered to down  

4 0
4 years ago
What is the amount of money whose 25percent is Rs 350​
34kurt

Answer:

Rs 1400

Step-by-step explanation:

Let us take the required number be x. According to question ,

=> 25% of x = Rs 350

=> 25/100 × x = Rs 350

=> x = Rs 350 × 100 / 25

=> x = Rs 1400

<h3>• Hence the required answer is Rs 1400.</h3>
6 0
3 years ago
In the equation x^2+kx+54=0 one root is twice the other root find k
Maurinko [17]
Let r be the lesser root and r^2 be the greater.......the sum of the roots   = -b/a  = -[-6] / 1  = 6

 

So we have that

 

r^2 + r  = 6     →    r^2 + r - 6 = 0      

 

Factor

 

(r + 3) (r - 2)   = 0  

 

So r = -3    or   r = 2

 

Then r^2  = 9     or r^2  =4

 

And the product of the roots =  c/a   =  k/a  = k

 

So....k =   (-3)(9)   = -27     or k = (2)(4)  = 8

 

Check

 

x^2 - 6x - 27  = 0      factors as  (x + 3)(x - 9) = 0     and  the roots are -3 and 9

 

x^2 - 6x + 8  = 0      factors as (x -2) (x - 4) =0      and the roots are 2 and 4

 

6 0
3 years ago
ABC is dilated using a scale factor of 2.5. Which property does not change?
Lorico [155]
C..................................................
8 0
3 years ago
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