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3 years ago

Find the value of a and b when x = 10a= 5x²/2 b= 2x²(x-5)/10x

Mathematics

1 answer:

docker41 [41]3 years ago

4 0

A=250
b=1000
hope this helped you :))

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Step-by-step explanation:

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1 year ago

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Small sample: During an economic downturn, companies were sampled and asked whether they were planning to increase their workfor

leva [86]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The confidence level interval is $0.016 \le C \le 0.404$

Step-by-step explanation:

The sample size is $n = 20$

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The confidence level is $c = 98$ %

The value of proportion for a plus 4 method is

$p = \frac{x+2}{n+4}$

substituting values

$p = \frac{3+2}{20+4}$

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The z-critical value at confidence level of 98% is

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This values is obtained from the standard normal table

The confidence level interval can be mathematically represented as

$C =p \ \pm z_{c} * \sqrt{\frac{p(1-p)}{n+4} }$

substituting values

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$C = 0.21 \pm 0.194$

=> $0.016 \le C \le 0.404$

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3 years ago

Factor 125x3 + 343y3

Annette [7]

Answer:

(5x + 7y)(25x² - 35xy + 49y²)

Step-by-step explanation:

125x³ + 343y³ ← is a sum of cubes and factors in general as

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= (5x + 7y)((5x)² - (5x × 7y) + (7y)²)

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-50<7k+6<-8

-56<7k<-14

-8<k<-2

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4 years ago

Find the value of a and b when x = 10a= 5x²/2 b= 2x²(x-5)/10x​

Find the value of a and b when x = 10a= 5x²/2 b= 2x²(x-5)/10x