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Talja [164]
4 years ago
12

HELP!! Adding and subtracting radicals

Mathematics
1 answer:
Law Incorporation [45]4 years ago
3 0
1. 8x^3y4 3<span>√xy - The first option
2. 6</span><span>√5 - The third option
3. 7 5</span><span>√x^2y - The third option
4. 3</span>√2x-6(3<span>√x) - The third option</span>
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HELP ITS DUE IN 4 MINUTES
lions [1.4K]

Answer:

3rd choice

4th choice

1st choice

2nd choice

8 0
3 years ago
Frequent food questionnaires (FFQ) are a simple way to obtain information on the foods individuals consume by asking them questi
Ilia_Sergeevich [38]

Answer:

Asnwer is A

Step-by-step explanation:

since the correlation between the FFQ and DR is 0.89

      x                            y               xy                    x^{2}                            y^{2}

    8.26                      1.68          13.8768          68. 2276          2.8224

     0.83                      0               0                    06889                  0

     20.13                   15.1           303.963          405.2169          228.01

      11.16                   7.49          83.5884          124.5456           56.1001

      7.18                    12.84         92.1912            51.5524            164.8656

       1.76                       0                0                   3.0976                 0

     22.46                  25.06        567.8596        513.4756           628.0036

-----------------------------------------------------------------------------------------------------------

       ∑x_{i} =                 ∑y_{i} =              ∑x_{i} y_{i}=               ∑x_{i}^{2} y_{i}^{2}=             ∑y_{i} ^{2}=      

      71.98                   62.17         1061.479            1166.8046      1079.8017  

-------------------------------------------------------------------------------------------------------------

Correlation Coefficient or Pearson Correlation is given by:  

the rest calculation is in the attached image

3 0
4 years ago
Write the first trigonometric function in terms of the second for θ in the given quadrant.
Vinvika [58]
Sintheta,costheta,tantheta are only positive in quadrant 1
sintheta is only positive in quad2
tantheta is only positive in quad3
costheta is only positive in quad4
8 0
4 years ago
Find the slope of the line through the pair of points. (1, 2) and (6, 9)
jekas [21]

Answer:

7/5

Step-by-step explanation:

To find the slope, we can use the slope formula

m = (y2-y1)/(x2-x1)

   = ( 9-2)/(6-1)

    = 7/5

7 0
3 years ago
Read 2 more answers
Find the following ratios. Write each answer as a fraction and as a decimal rounded to four decimal places.
Alona [7]

Answer:

y = 56.6208

Step-by-step explanation:

Given

The attached triangle

Required

Find y

To find y, we make use of the relationship between sides lengths 44 & y and angle 39

The relationship is:

cos(39) = \frac{44}{y}

i.e.

cos(\theta) = \frac{Adjacent}{Hypotenuse}

Make y the subject

y = \frac{44}{cos(39)}

y = \frac{44}{0.7771}

y = 56.6208 -- approximated

5 0
3 years ago
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