Answer:
C: A line travelling to the right with an open dot on p = -3.
Step-by-step explanation:
You use a closed dot when the equation is greater/less than or equal to: 
It goes right because if it went left it would be p < -3.
Answer:
Step-by-step explanation:
1.8kg into grams
1.8kg = 1800 grams
Total toys = 6
Weight of one toy = 1800 ÷ 6 = 300 grams
Weight of 4 toys = 300 x 4 = 1200 grams = 1.2kg
Answer:
The square root of 196 is 14
Step-by-step explanation:
Prime factorization of 196:
Prime factors of 196 in pairs:
Now square root of 196:
- √196 = √(2 × 2) × (7 × 7)
- √196 = √(2 × 7)²
- √196 = (2 × 7)
- = 14
Thus, The square root of 196 is 14
<u>-TheUnknownScientist</u><u> 72</u>
Answer:
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A boy is cycling such that the wheels of the cycle are making 140 revolutions per minute. If the diameter of the wheel is 60cm, calculate the speed per hour with which the boy is cycling.
Easy
Solution
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Radius of the wheel =r=
2
60
=30 cm
Circumference of the wheel =2πr=2×
7
22
×30=
7
1320
cm
Distance covered in 1 revolution =
7
1320
cm
Distance covered in 140 revolutions =
7
1320
×140=26400 cm=264 m=
1000
264
km
Distance covered in one minute = Distance covered in 140 revolutions =
1000
264
km
Distance covered in 1 hour =
1000
264
×60=15.84 km
Hence, the speed with which the boy is cycling is 15.84km/hr.
Answer:
Step-by-step explanation:
Let x be the original price.
( 1 - 20% ) x = 23.2
