Answer:
≈ 30.63 cm²
Step-by-step explanation:
The shaded area is calculated by subtracting the area of the inner circle from the area of the outer circle.
outer circle has radius = 8 ÷ 2 = 4 and inner circle has radius = 5 ÷ 2 = 2.5
shaded area = πr₁² - πr₂² (r₁ is outer and r₂ is inner )
A = π (4² - 2.5²)
= π(16 - 6.25) = 9.75π ≈ 30.63 cm²
Answer:
7x^2 + 14x - 12
Step-by-step explanation:
Add like terms:
(4x + 8x - 5) + (3x2 + 6x - 7) becomes:
4x^2 + 8x - 5 or (grouping like terms in columns):
+ 3x^2 + 6x - 7
---------------------
7x^2 + 14x - 12
Answer:
1 5/12 i think im sorry if i get it wrong.
Step-by-step explanation:
Answer:
1.2 litres more water should Josie drink.
Step-by-step explanation:
As given
It is recommended that an adult drink 64 fluid ounces of water everyday .
As given
1 ounce = 0.0296 litre .
Now convert 64 ounces into litre.
64 ounce = 64 × 0.0296
= 1.9 litres (Approx)
As
1 litre = 1000 ml

Now convert 700 ml into litre.


700 ml = 0 .7 litre
Thus
Recommended amount of water a adult should drink = Amount of water Josie already consumed + More water should Josie drink.
Putting the value
1.9 litres = 0 .7 litres + More water should Josie drink.
More water should Josie drink = 1.9 - 0.7
More water should Josie drink = 1.2 litres .
Therefore 1.2 litres more water should Josie drink.
Answer:
the equation is y = ax + b (a ≠ 0)
see in the graph, the line passed through (0;3) and (1;5)
=>b = 3
a + b = 5
<=> a = 2
b = 3
=> the equation is y = 2x + 3
Step-by-step explanation: