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3 years ago

I need help on this plz help me

Mathematics

2 answers:

Lana71 [14]3 years ago

3 0

B hope this helps I took the test and got it right!

Tatiana [17]3 years ago

3 0

It’s 80 square center meters the answer is c

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6,132 ÷ 203= Divide. Enter a solution as a mixed number

Marat540 [252]

Answer:

30.2

Step-by-step explanation:

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3 years ago

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What is the value of x? Enter your answer in the box. x =

Andre45 [30]

10x - 20 + 6x + 8 = 180

16x - 12 = 180

16x = 192

x = 12

hope this helps...!!!

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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 $n = 20$

The number planning to increase workforce is $x = 3$

The confidence level is $c = 98$ %

The value of proportion for a plus 4 method is

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

substituting values

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

$p =0.21$

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

$z_{c}=z_{0.98} = 2.33$

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

$C = 0.21 \pm 2.33 * \sqrt{\frac{0.21(1- 0.21)}{20 +4} }$

$C = 0.21 \pm 0.194$

=> $0.016 \le C \le 0.404$

7 0

3 years ago

15 is what percent of 40

Cloud [144]

15% of 40...
15% in decimal form is 0.15...

0.15(40)= 6

your answer is 6.

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Im so confused rn i have no idea how to do this my teacher didnt teach us this

dimulka [17.4K]

Answer:

you use the mean method. and then round.

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