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Yuri [45]
3 years ago
6

1. Evaluate the expression -6.3a +2(a - b) for a = -2 and b = 1.1.

Mathematics
1 answer:
sasho [114]3 years ago
8 0

Answer:

D or 6.4

Step-by-step explanation:

-6.3*(-2) + 2(-2 - 1.1)

- 6.3 * - 2 = 12.6 Notice that the two minus signs become a +

(-2 - 1.1)= (-3.1)   Multiply -3.1 * 2 = - 6.2

12.6 - 6.2 = 6.4

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The function h(t) = −16t2 + 18t models the height, in feet, reached by a leopard t seconds after it jumps. What is the approxima
S_A_V [24]

9514 1404 393

Answer:

  5 1/16 ft

Step-by-step explanation:

  h(t) = -16t(t -18/16) . . . . put in intercept form

The function describes a parabola that opens downward. It has zeros at t=0 and t=9/8. The maximum height will be found at the vertex of the parabola, halfway between these zeros.

  f(9/16) = (-16)(9/16)² +18(9/16) = 81/16 = 5 1/16 . . . . feet

The approximate maximum height of the leopard is 5 1/16 feet.

5 0
3 years ago
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velikii [3]
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3 years ago
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Lostsunrise [7]

Answer:

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I think it’s Reflection and translation hope this helps :)
4 0
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