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bogdanovich [222]
2 years ago
11

4. = 38 -8(n-1), n=1, 2, 3...

Mathematics
1 answer:
stepladder [879]2 years ago
5 0

Answer:

38-8\left(n-1\right),\:n=123:\quad -938

\mathrm{For}\:38-8\left(n-1\right)\:\mathrm{substitute}\:n\space\mathrm{\:with\:}\space123

38-8(123-1)= -938

-938

Step-by-step explanation:

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In monitoring lead in the air after the explosion at the battery factory, it is found that the amounts of lead over a 7 day peri
Andrew [12]

Answer:

MOE=\pm \ 1.41

Step-by-step explanation:

-Given that \sigma=1.91, n=7

-We determine the z-value corresponding to the 95% confidence level:

z_{\alpha/2}=z_{0.025}=1.96

-The margin of error is the degree of error from the real value and is calculated as follows:

MOE=\pm z_{\alpha/2} (\frac{\sigma}{\sqrt{n}})\\\\=\pm z_{0.025}\times\frac{\sigma}{\sqrt{n}}\\\\=\pm 1.96\times \frac{1.91}{\sqrt{7}}\\\\=\pm 1.41

Hence, the margin of error is \pm 1.41

7 0
3 years ago
Change your money from dollars to british pounds.you got 560 pounds for 800 dollars.how many pounds will you get for 300 dollars
Anettt [7]
You do a proportion so 560x300=168,000 so then you take 168,000 and divide by 800 so the answer is 210 you would have 210 British pounds for 300 dollars
7 0
3 years ago
18.5−1.73 what is this??
Debora [2.8K]
The answer for this is 16.77
5 0
2 years ago
Match each function with the corresponding function formula when h(x) = 5 - 3x and g(x) = -3 x + 5.
laila [671]

Answer:

To match each functions with the corresponding function formula when h(x) = 5 - 3x and g(x) = -3 x + 5.

1. k(x) = (3h - 5g)(x)

  = = 3(5 - 3x)-5(-3 x + 5)

 = = 15 - 9x + 15x - 25

  K(x) = -10 + 6x

2.  k(x) = (h - g)(x)

    = = (5 - 3x) - (-3 x + 5)

 = = 0

k(x) = 0

3. k(x) = (5g + 3h)(x)

 = = 5(-3 x + 5)+3(5 - 3x)

 = = -15x + 25 + 15 - 9x

 k(x) = - 24x +40

4. k(x) = (3g + 5h)(x)

  =  = 3 (-3 x + 5) + 5(5 - 3x)

 = = -9x + 15 +25 -15x

 k(x) = -24x + 40

5.  k(x) = (g + h)(x)

   = = (-3 x + 5) + (5 - 3x)

k(x)  = -6x + 10

6.  k(x) = (5h - 3g)(x)

 = = 5(5 - 3x) - 3(-3 x + 5)

= =25 - 15x + 9x - 15

k(x) = 10 - 6x

6 0
4 years ago
65 points Of the 30 girls who tried out for the basketball team at SMS, 12 were
natulia [17]

Answer:

the ratio is the same

Step-by-step explanation:

Girls

12 out of 30

12/30

Divide top and bottom by 6

2/5

Boys

16 out of 40

16/40

Divide top and bottom by 8

2/5

8 0
3 years ago
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