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Elenna [48]
3 years ago
5

Can also explain this one

Mathematics
2 answers:
Andre45 [30]3 years ago
8 0
Yes what they said!!
andreev551 [17]3 years ago
5 0
Sometimes you have to simplify fractions after doing arithmetic with them. Cross-cancellation is a simplification that can be done before. simplifying before means when you do multiply, you'll have smaller numbers, and smaller numbers are easier to work with.
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The table shows the outputs, y, for different inputs, x: Input (x) 8 12 14 16 Output (y) 8 12 16 16 Part A:Do the data in this t
Nataly_w [17]
A. yes, the data represents a function because u have no repeating x values. A function cannot have repeating x values...they can have repeating y values, just not the x ones.

B. table : (8,8)(12,12)(14,16)(16,16)
                look at ur points...when x = 8, y = 8...so the table, when x = 8 has a 
                value of 8
relation : f(x) = 8x - 5....when x = 8
              f(8) = 8(8) - 5
              f(8) = 64 - 5
              f(8) = 59....and the relation has a value of 59
Therefore, the relation has a greater value when x = 8 <==

C. f(x) = 8x - 5...when f(x) = 19
     19 = 8x - 5
      19 + 5 = 8x
     24 = 8x
     24/8 = x
     3 = x <==
7 0
3 years ago
Dual-energy X-ray absorptiometry (DXA) is a technique for measuring bone health. One of the most common measures is total body b
kramer

Answer:

(a)

\bar x = 0.0075

s = 0.0049

(b)

B. The sample is too small to make judgments about skewness or symmetry.

Step-by-step explanation:

Given:

n = 8

\begin{array}{ccccccccc}{} & {S} & {u} & {b} &{j} & {e} & {c} & {t} & {s} &{Operator} & {1} & {2} & {3} & {4} & {5} & {6} & {7} & {8} & {1} & 1.326 & 1.337 & 1.079 & 1.229 & 0.936 & 1.009 & 1.179 & 1.289 & 2 & 1.323 & 1.322 & 1.073 & 1.233 & 0.934 & 1.019 & 1.184 & 1.304 \ \end{array}

Solving (a):

First, calculate the difference between the recorded TBBMC for both operators:

\begin{array}{ccccccccc}{} & {S} & {u} & {b} &{j} & {e} & {c} & {t} & {s} &{Operator} & {1} & {2} & {3} & {4} & {5} & {6} & {7} & {8} & {1} & 1.326 & 1.337 & 1.079 & 1.229 & 0.936 & 1.009 & 1.179 & 1.289 & 2 & 1.323 & 1.322 & 1.073 & 1.233 & 0.934 & 1.019 & 1.184 & 1.304 &{|1 - 2|} &0.003 & 0.015 & 0.006 & 0.004 & 0.002 & 0.010 & 0.005 & 0.015 \ \end{array}

The last row which represents the difference between 1 and 2 is calculated using absolute values. So, no negative entry is recorded.

The mean is then calculated as:

\bar x = \frac{\sum x}{n}

\bar x = \frac{0.003 + 0.015 + 0.006 + 0.004 + 0.002 + 0.010 + 0.005 + 0.015}{8}

\bar x = \frac{0.06}{8}

\bar x = 0.0075

Next, calculate the standard deviation (s).

This is calculated using:

s = \sqrt{\frac{\sum (x - \bar x)^2}{n}}

So, we have

s = \sqrt\frac{(0.003 - 0.0075)^2 + (0.015 - 0.0075)^2+ (0.006- 0.0075)^2+ ....... + (0.005- 0.0075)^2+ (0.015- 0.0075)^2 }{8}s = \sqrt\frac{0.00019}{8}

s = \sqrt{0.00002375

s = 0.0049

Solving (b):

Of the given options (A - E), option B is correct because the sample is actually too small

6 0
3 years ago
a homework assignment included 40 multiple choice questions Sabrina completed 65% of her assignment in David completed 4/5 of hi
bazaltina [42]

Answer:

6 or -6

Step-by-step explanation:

  1. 65% of 40=26
  2. 4/5 of 40=32
  3. 32-26=6
  4. (or if you start with 26)
  5. 26-32=-6
7 0
2 years ago
Read 2 more answers
Students in grades 7 and 8 were asked which food they liked the best. The results are shown in the table. What percentage of all
Nostrana [21]

Answer:

Where's the table?

Step-by-step explanation:

4 0
3 years ago
One angle of an isosceles triangle is 50 °. Calculate all the angles of that triangle.
monitta

Answer:

150

Step-by-step explanation:

3 times 50 equal 150

6 0
3 years ago
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