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777dan777 [17]
3 years ago
6

(6×1/10)+(3×1/100)+(9×1/1000)

Mathematics
1 answer:
NISA [10]3 years ago
5 0

Answer:

0.639

Step-by-step explanation:

ezzzzzzzzzzzzzzzzzzzzzzz

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Seven plus five times a number is gteater than or equal to negative 9​
zubka84 [21]

Step-by-step explanation:

7+5(x) ( between here write the greater than or equal to sign) -9

5 0
3 years ago
Solve for x<br><br> A 130<br> B 120<br> C 23<br> D 70
34kurt

Answer:

B)120º

Step-by-step explanation:

70+50=x

120=x

7 0
2 years ago
Help pls, will choose brainliest if explanation is provided
Nookie1986 [14]

Answer:

solve \: when \: (f + g) \:(4) \\   \\ first \: solve \: for \: f(x) \\ \:  \\  solution  \: .... \\  \\ f(x) = 4x - 3 \\ f(4) = 4(4) - 3 \\ f(4) = 16 - 3 \\ f(4) = 13 \\  \\  \\ now \: solve \: for \: g(x) \\  \:  \\ solution \: .... \\  \\ g(x) =  {x}^{3}  + 2x \\ g(x) =  {(4)}^{3}  + 2(4) \\ g(x) = 64 + 8 \\ g(x) = 72 \\  \\ (f) - (g) = 13 - 72 \\ (f) -(g) = -59

8 0
2 years ago
A researcher compares the effectiveness of two different instructional methods for teaching electronics. A sample of 138 student
yan [13]

Answer:

The 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 is (-8.04, 0.84).

Step-by-step explanation:

The (1 - <em>α</em>)% confidence interval for the difference between population means is:

CI=(\bar x_{1}-\bar x_{2})\pm z_{\alpha/2}\times \sqrt{\frac{\sigma^{2}_{1}}{n_{1}}+\frac{\sigma^{2}_{2}}{n_{2}}}

The information provided is as follows:

n_{1}= 138\\n_{2}=156\\\bar x_{1}=61\\\bar x_{2}=64.6\\\sigma_{1}=18.53\\\sigma_{2}=13.43

The critical value of <em>z</em> for 98% confidence level is,

z_{\alpha/2}=z_{0.02/2}=2.326

Compute the 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 as follows:

CI=(\bar x_{1}-\bar x_{2})\pm z_{\alpha/2}\times \sqrt{\frac{\sigma^{2}_{1}}{n_{1}}+\frac{\sigma^{2}_{2}}{n_{2}}}

     =(61-64.6)\pm 2.326\times\sqrt{\frac{(18.53)^{2}}{138}+\frac{(13.43)^{2}}{156}}\\\\=-3.6\pm 4.4404\\\\=(-8.0404, 0.8404)\\\\\approx (-8.04, 0.84)

Thus, the 98% confidence interval for the true difference between testing averages for students using Method 1 and students using Method 2 is (-8.04, 0.84).

5 0
3 years ago
Describe the transformation from f(x) = x⁴ to g(x) = (x - 2)⁴ - 3
pogonyaev

Answer:

Two to the left, three down

Step-by-step explanation:

Graphed it

3 0
2 years ago
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