Shania wanted her friend Radhika’s mobile number. But Radhika played a trick. She gave her a 10-digit mobile number she uses in India as 9 x y z p 7 q 1r 3 and told her to decode it with the help of following equations. Help her by solving equations. (Show your work) (a) 2x-5 = 7
(b) 2(p + 1) = p + 4
(c) 5(y + 1) = 25
(d) 5(q –1) + 3q = 10 + 1
(e) 3−12+4= 1
(f) +14−8= 1
Given Mobile Number: 9 x y z p 7 q 1r 3

the answer is; biodiversity resulting from few ancestors

adaptive radiation occurs when a population is subjected to a large natural environment with spatial ecological variations. the parts of the population in the different ecologies begin to adapt to their local environments. due to non-random mating across the large populations, this causes the different populations from the large population to speciate within their local environments. they, therefore, diverge to different species sharing a common ancestor.  

the correct answer would be:

220 centimeters

to get this you can use the pythagorean theorem

hope this

step-by-step explanation:

the polynomial is a perfect square trinomial of the form a^2-2ab+b^2:

option a. true

step-by-step explanation:

9x^2-12x+4

comparing with the form a^2-2ab+b^2

1.) a^2=9x^2

solving for a: square root both sides of the equation:

sqrt(a^2)=sqrt(9x^2)

a=sqrt(9) sqrt(x^2)

a=3x

2.) b^2=4

solving for b: square root both sides of the equation:

sqrt(b^2)=sqrt(4)

b=2

to be a perfet square trinomial 2ab must be equal to 12x. let's check:

2ab = 2 (3x) (2)

2ab = 12x

correct