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Alex17521 [72]
3 years ago
11

Evaluate 7x - (2x)2 + x 3 for x = -2.

Mathematics
1 answer:
V125BC [204]3 years ago
7 0

7x - (2x)2 +  {x}^{3}

7x - 4x +  {x}^{3}

3x +  {x}^{3}

3( - 2) +  { (- 2)}^{3}

- 6 +  - 8

- 14

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List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x)
n200080 [17]

Answer:

Option A. 4, 4.5, 5, 5.5

Step-by-step explanation:

Left point: a=x=4

Right point: b=x=6

Range: r=b-a→r=6-4→r=2

Width of each of the four equal intervals: w=2/4→w=0.5

The first left endpoint is x1=a→x1=4

The second left endpoint is x2=x1+w→x2=4+0.5→x2=4.5

The third left endpoint is x3=x2+w→x3=4.5+0.5→x3=5

The fourth left endpoint is x4=x3+w→x4=5+0.5→x4=5.5

Then, the list is: x1, x2, x3, x4 = 4, 4.5, 5, 5.5

4 0
3 years ago
Please help! Solve for g
7nadin3 [17]

Answer:

g= - 32

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

Step 2: Flip the equation.

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Step 4: Multiply both sides by 4/(-1).

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I need help with geometry
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Answer:

146

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Which means that an intercepted arc is equal to two times the measure of its corresponding inscribed angle

Thus, arc ab = 2(73)

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Answer:

76%

Step-by-step explanation:

First parts right

75.7% i think maybe

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