Question

can u please tell answer of these questions
i'll mark brainlest please​

Answer 1

Step-by-step explanation:

ANSWER THE FOLLOWING:

1.) Distance AB = 30km

Distance AB = 60km

by Pythagoras theorem:

(CA)^2 = (AB)^2 + (BC)^2

CA = √(AB)^2 + (BC)^2

CA = √(30)^2 + (60)^2

CA = √900 + 3600

CA = √4500

CA = √2×5×2×5×3×3×5

CA = 2×5×3√5

CA = 30√5 km

2.) Total amount in bank = 20,000

Money that withdrawal for 2 months

= 2×3000

= 6000

Now, Total amount that left in bank

= 20,000 - 6000

= 14,000

Money that deposited in third month is double of withdrawal amount

= 6,000×2

= 12,000

The balance in his account after 3 months

= Total amount that left in bank + Money that deposited in third month is double of withdrawal amount

= 14,000 + 12,000

= 26,000

3.) a - (-b) = a + b

(i) a = -17 , b = 15

-17 - (-15) = -17 + 15

-17 + 15 = -17 + 15

-2 = -2 . verified

(ii) a =50 , b = 21

50 - (-21) = 50 + 21

50 + 21 = 50 + 21

71 = 71 . verified

4.) a) >

b) <

c) <

d) =

5.) rise in temperature

= final temperature - initial temperature

= 20°c - (-20°c)

= 20°c + 20°c

= 40°c

HOPE THIS HELPS YOU

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