Answer:
40 i think i hope i helped
Step-by-step explanation: 30+25=55 10+5=15 15-55=40
Answer:
the answer is b.1001 as the equvalent number to the decimal 9
Answer:
15x + 15° = 3x + 9° + 78° (exterior angle is equal to the sum of the opposite interior angles)
15x - 3x = 9° + 78° - 15 °
12x = 72°
12x÷12 = 72°÷12
x = 6
Answer:
The rate of change of the distance between the cars at that instant is 5.46 meters per second
Step-by-step explanation:
Speed of first car = 7 m/s
Speed of second car = 3 m/s
At instant, distance of first car from intersection = 5 meters
distance of second car from intersection = 12 meters
Therefore, we have
Distance between both cars at intant = √(12² + 5²) = 13 m
Rate of cahnge of distance is given by;
2ddd/dt = d(x² + y²)/dt = 2xdx/dt + 2ydy/dt
= 26dd/dt = 2×5×7 + 2×12×3 = 142
dd/dt = 142/26 = 5.46 m/s.
That is the rate of change of the distance between the cars at that instant = 5.46 meters per second.
Answer:
<h2>B. 6</h2>
Step-by-step explanation:
![\text{use}\\\\a^{-n}=\dfrac{1}{a^n}\\\\==========================\\\\b^{-3}=\dfrac{1}{216}\\\\\dfrac{1}{b^3}=\dfrac{1}{216}\qquad\text{inverse both sides}\\\\b^2=216\to b=\sqrt[3]{216}\\\\b=6\ \text{because}\ 6^3=216](https://tex.z-dn.net/?f=%5Ctext%7Buse%7D%5C%5C%5C%5Ca%5E%7B-n%7D%3D%5Cdfrac%7B1%7D%7Ba%5En%7D%5C%5C%5C%5C%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%3D%5C%5C%5C%5Cb%5E%7B-3%7D%3D%5Cdfrac%7B1%7D%7B216%7D%5C%5C%5C%5C%5Cdfrac%7B1%7D%7Bb%5E3%7D%3D%5Cdfrac%7B1%7D%7B216%7D%5Cqquad%5Ctext%7Binverse%20both%20sides%7D%5C%5C%5C%5Cb%5E2%3D216%5Cto%20b%3D%5Csqrt%5B3%5D%7B216%7D%5C%5C%5C%5Cb%3D6%5C%20%5Ctext%7Bbecause%7D%5C%206%5E3%3D216)
