Question

please solve its important​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

3) Given,

HCF of 35 and 45 = 5

LCM of 35 and 45 = 63a

We know that HCF x LCM = Product of the two numbers

Product of the numbers = 35 x 45 = 1575

According to the above formula,

5 x 63a = 1575

315a = 1575

a = 5

$\boxed{\rm a \: = \: 5}$

4) Let P1 = (0,5) and P2 = (-5,0)

x1 = 0, x2 = -5

y1 = 5, y2 = 0

We know that distance between two points P1 and P2 whose co-ordinates are (x1,y1) and (x2,y2)

Then,

$\rm Distance \: between \: the \: points \: = \sqrt{(x_2 - x_1)² + (y_2 - y_1)²}$

By using the above formula,

Distance between the points = √[(- 5 - 0)² + (0 - 5)²] = √(25 + 25) = √(25 x 2) = √25 x √2 = 5√2

$\boxed{\rm Distance \: between \: the \: points \: = \: 5√2 \: units}$