I will guest that it will be these answers:
The best represent the scenario shown in the graph of the quadratic functions, y = x2 and y = x2 + 3 are the following: -The quadratic function, y = x2, has an x-intercept at the origin -From x = -2 to x = 0, the average rate of change for both functions is negative
-For the quadratic function, y = x2 + 3, the coordinate (2, 7) is a solution to the equation of the function.

4 0

4 years ago

Suppose r varies directly with the square of m and inversely as s. If r= 12 when m = 6 and s=4, find r when m = 4 and s 10

zalisa [80]

Answer:

$r=\frac{32}{15}$

Step-by-step explanation:

If r varies directly with the square of m and inversely as s,

then $r=\frac{km^2}{s}$ where k is some constant

Given r = 12 when m = 6 and s = 4:

$r=\frac{km^2}{s}$

⇒ $12=\frac{k6^2}{4}$

⇒ $\frac{12\times4}{6^2} =k$

⇒ k = $\frac{4}{3}$

Therefore, substituting the found value of k into the original equation: $r=\frac{4m^2}{3s}$

Find r when m = 4 and s = 10:

$r=\frac{4m^2}{3s}$

⇒ $r=\frac{4\times4^2}{3\times10}$

⇒ $r=\frac{32}{15}$

6 0

3 years ago

What!!!?!?! Could someone help me with the first two I don't understand and it's due tomorrow

Delicious77 [7]

If said number is x, that means that twice (2 times) a number and 2x-7=13. Adding 7 to both sides, we get 2x=20 and by dividing both sides by 2 we get x=10. For 2, we see that the sum of a number and 6 is first priority, so we have (x+6)*7=-43. Dividing both sides by 7, we get x+6=-43/7. After that, we subtract both sides by 6 to get -43/7-6=x

3 0

3 years ago