Answer:
2.1544
Step-by-step explanation:
= 2.1544
check: 2.1544^3
The graph of y = square root of 9 - x end square root - 5 is shown below. What are the x-intercept and the y-intercept, and for
what values of x is the function defined?
answers:
x-Intercept: (−16, 0), y-intercept: (0, −2), x ≥ 9
x-Intercept: (−16, 0), y-intercept: (0, −2), x ≤ 9
x-Intercept: (−16, 0), y-intercept: (0, −2), x ≥ −5
x-Intercept: (0, −2), y-intercept: (−16, 0), x ≥ −2
answers:
x-Intercept: (−16, 0), y-intercept: (0, −2), x ≥ 9
x-Intercept: (−16, 0), y-intercept: (0, −2), x ≤ 9
x-Intercept: (−16, 0), y-intercept: (0, −2), x ≥ −5
x-Intercept: (0, −2), y-intercept: (−16, 0), x ≥ −2
1 answer:
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Answer:
look at explanation
Step-by-step explanation:
To solve all of these questions you just need to scale. While scaling you can divide or multiply.
1. (divide by 4 to get unit rate)
unit rate =
2. If it takes one hour to travel 40 miles, then we don't have to scale or anything. We know , the answer is...
"It'll only take one hour to travel 40 miles. This is correct because the unit rate is . "
3. Knowing that the constant speed of the plane is , we can scale then add half of the unit rate to get our answer.
x 3 =
800 x 3 = 2400
then add half of unit rate which is
= 400
so, our answer is
4. <--- ( divided by 2)
( multiplied x 2.5) --->
To get an easier way to find the answer, if possible you can scale back farther than the 1 hour mark.
Elmer would take 2 and a half hours to ride 15 km.
5. The boys speed is . All we need to do is divide by 2.
= 4