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slamgirl [31]
3 years ago
15

How do you do letter b?

Mathematics
1 answer:
Nutka1998 [239]3 years ago
8 0

Answer:

0.8632

0.8696

Step-by-step explanation:

Your answer is accurate, but it's not the most precise option.

f(x) is decreasing and concave up on the interval.  Therefore, trapezoidal rule will give us an area greater than the actual area, but closer than left-hand rule.

If f(x) were a straight line, then midpoint rule would give us the same area as trapezoidal rule.  However, since f(x) is concave up, the midpoint is less than the average of the endpoints.  So midpoint rule will give us an area less than the actual area, but closer than right-hand rule.

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Kira looked through online census information to determine the average number of people living in the homes in her city. What is
Goshia [24]
First we need to identify if the data is qualitative or quantitative.

The data is average number of people living in the homes.

Qualitative data as its name indicates is an attribute or characteristic. It can not be measured e.g color. Quantitative data is such a data which can be counted or measured.

Since the average number of people can be counted and measured, the data is Quantitative.

In an observational study the individuals are observed. In the given case, Kira did not observed the individuals to gather the data, rather she used an Online resource to gather the data.

Therefore, the correct answer will be:
Kira used published data that is quantitative.
4 0
3 years ago
Read 2 more answers
Please help ASAP thanks
hjlf

Answer:

x = 2.5 inches. Or

x = 5/2

Step-by-step explanation:

Length: 7 + 2x

Width: 5 + 2x

Note that you have to add x at each end of the picture and onto each part of the width.

The entire area is 120 square inches.

Formula

L*W = Area

(2x + 7)(2x + 5) = 120

Solution

4x^2 + 10x + 14x + 35 = 120                Subtract 120 from both sides. Add xs

4x^2 + 24x + 35 - 120 = 0

4x^2 + 24x - 85 = 0                             Factor

(2x + 17)(2x - 5)

2x + 17 has no meaning. It will give -  8.5 which is not possible.

2x - 5 =0

2x = 5                                                  Divide by 2

x = 5/2

x = 2.5

Note: I don't know which one the computer is looking for.

8 0
3 years ago
Read 2 more answers
Please help. I don't know where to start on the question.​
jeyben [28]

Answer:

multiply the numbers next to the variables by the given subtitution for the variable so 5 times 14 plus 36 and 6 times 12.5 minus 1 and 4 times 14 plus 50

Step-by-step explanation:

4 0
3 years ago
Dina bought 5 5/6 kg chocolate in her birthday . She have 1 2/3 kg to her parents and 3 1/3 kg to her friends how much was left
PSYCHO15rus [73]
1 2/3 + 3 1/3 = 5/1
5 5/6 - 5/1 = 5/6
5/6 was left
5 0
3 years ago
Ac is tangent to circle o at point c what is the length of ac?
MissTica

Answer:

The Answer is 12

Step-by-step explanation:

Use Pythagorean theorem. AB=8 and BO=5 We still need to find AO

AO=AB+BO

8+5

AO=13

Now solve for AC

AC^2 + OC^2= AO^2

AC^2+5^2=13^2

AC^2+ 25=169

AC^2=144

AC= 12

5 0
4 years ago
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