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Alex Ar [27]
3 years ago
14

Find the circumference of a circle with radius 20m. Answer correct to 1 decimal place.

Mathematics
1 answer:
ankoles [38]3 years ago
6 0

Answer:

125.7

Step-by-step explanation:

I just googled it lol

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The accompanying data on IQ for first-graders at auniversity lab school was introduced in Example 1.2.82 96 99 102 103 103 106 1
almond37 [142]

Answer:

Mean = 113.72

The estimator of 113.72 is point estimate used for the  conceptual population of all first-graders in this school

Step-by-step explanation:

Data provided in the question:

Data:

82 96 99 102 103 103 106 107 108 108 108 108 109 110 110 111 113 113 113 113 115 115 118 118 119 121 122 122 127 132 136 140 146

Number of data = 33

In the hint it is also given that the sum of the data value i.e ∑x = 3753

Now,

Point estimate of mean is given as;

Mean = \frac{\textup{Sum of all the data values}}{\textup{Total number of data value}}

or

⇒ Mean = \frac{\textup{3753}}{\textup{33}}

or

⇒ Mean = 113.72

Hence,

The estimator of 113.72 is point estimate used for the  conceptual population of all first-graders in this school

5 0
3 years ago
For what value of the constant c does the above equation have x = 2 as the only solution?
Stolb23 [73]
The answer is A, -41.
Substitution:
-8(2) - (-41)
-16 + 41
25.
Square root of 25 = 5.
5 = 4x - 3.
5 = 4(2) - 3
5 = 8 - 3
5 = 5.

8 0
3 years ago
Find the area of the composite figure. <br><br> Please help me!!
elena55 [62]

Answer:

1,824 sq inches

Step-by-step explanation:

area of rectangle: 48 x 32 = 1536

area of triangle: (48 x 12) / 2 = 288

5 0
3 years ago
Each digit 8 in the number 8.888 has a different value placed on its place in the place-value chart. Each 8 is multiplied by its
stich3 [128]

Answer:

The value of every digit in a decimal figure is given by its position in that figure.

Step-by-step explanation:

<em>The Rule:</em>

The value of every digit in a decimal figure is given by its position in that figure.

For the figure 8.888, from left to right,

The first 8 is in units

The second 8 is in tenth (this means 8/10 = 0.8)

The third 8 is in hundreth (this means 8/100 = 0.08)

The fourth 8 is in thousandth (this means 8/1000 = 0.008)

The sum of the place values of the digits after the decimal point = 0.888

when the unit 8 is added, you then get 8.888

6 0
3 years ago
I'm stuck on this one. I'm sorry of you know everything but there are other people who can't comprehend some problems without be
Gekata [30.6K]

Answer:

Expand the brackets, and simplify.

(4t - 8/5)-(3-4/3t) = (4t +4/3t) + ( -8/5 - 3) = 5 1/3t - 23/5 = 16/3t - 23/5

5(2t + 1) + (-7t + 28) = 10t + 5 - 7t + 28 = 3t + 33

(-9/2t + 3) + (7/4t + 33) = (-9/2t + 7/4t) + (3 + 33) = -11/4t + 36

3(3t - 4) - (2t + 10) = 9t - 12 - 2t - 10 = 7t - 22

7 0
2 years ago
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