Answer:
She should add five cups of water.
Step-by-step explanation:
The two parts are equal to 2 cups, so five parts would be equal to 5 cups. Hope this helps!
To figure out the solution in a problem related to calculate maximum or minimum of something, you've to derive the involved equation, and make it equal to 0, solving the x.
So:
y = -0'296x² + 2'7x
y' = -0'592x + 2'7
0 = <span>-0'592x + 2'7
</span><span>-0'592x = 2'7
</span>x = 4'56
And if we substitute 4'56 on the first equation:
y = -0'296·<span>4'56² + 2'7·4'56
y = 6'16
So the length of the jump is 4'56cm, and the height 6'16cm.</span>
Step-by-step explanation:
Gravitational potential energy is:
PE = mgh
Given PE = 96000 J and m = 80 kg:
96000 J = (80 kg) (9.8 m/s²) h
h ≈ 122 m
Round as needed.
Answer:
7.3
Step-by-step explanation:
Two minuses, one minus inside a bracket and one outside, make a plus.
2-(-5.3) = 2+5.3
= 7.3
Answer:
5(9b + 8)
Step-by-step explanation:
Rewrite 45 as 5 * 9
Rewrite 40 as 5 * 8
= 5 * 9b + 5 * 8
Factor out common term 5
=5 (9b + 8)
