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Lena [83]
3 years ago
15

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)

between x = 4 and x = 6.
A 4, 4.5, 5, 5.5
B 4.5, 5, 5.5, 6
C 4.25, 4.75, 5.25, 5.75
D 4, 4.2, 5.4, 6
Mathematics
1 answer:
n200080 [17]3 years ago
4 0

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

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Pavlova-9 [17]

Answer:

9 & 2.

Step-by-step explanation:

let x represent the unknown numbers.

x + x-7 = 11

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Mateo, a 31-year-old nonsmoker ($5.50), wants to purchase $100,000 in coverage for himself and $75,000 for his spouse, who is fe
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Answer: B. $32.50

Step-by-step explanation:

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4 0
3 years ago
Can someone pls factor the trinomial<br> I will mark you as brainliest
Nitella [24]
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8 0
3 years ago
Need help with this triangle problem
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7 0
2 years ago
50 POINTS AND BRAINLIEST!!! NEED HELP NOW!!
Ad libitum [116K]

1. would have to be team E because add up all the numbers 1058/8 (which is how many numbers that is there) 132.25.

2. (More of an explanation if you still don't understand)

52+52+53+54+55+55=321/6=53.5

52+53+54+55+57+57=328/6=54.66 repeated rounded to 54.7 so your answer is 1.2

3 0
3 years ago
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