A spherical balloon with radius inches has volume  FIGURE 1.png)
Find a function that represents the amount of air required to inflate the balloon from a radius of r inches to a radius of r + 1 inches.
What will be an ideal response?
 ANSWER.png)
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Use the distributive property to rewrite the expression.3 ? x + 3 ? z
A. 3(x + z) B. 6(x + z) C. 3(xz) D. 9(x + z)
Provide an appropriate response.A number multiplied by itself is 7. What is the number?
Fill in the blank(s) with the appropriate word(s).
Graph the quadratic function using its vertex, axis of symmetry, and intercepts.f(x) = x2 + 8x + 7
A. vertex (-4, 9)
intercepts (-1, 0), (- 7, 0), (0, -7)
B. vertex (4, 9)
intercepts (1, 0), (7, 0), (0, -7)
C. vertex (-4, -9)
intercepts (-1, 0), (- 7, 0), (0, 7)
D. vertex (4, -9)
intercepts (1, 0), (7, 0), (0, 7)
Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?
A. 20 B. 100 C. 10 D. 500