3 years ago

|43|-|-20| what is the answer

Mathematics

2 answers:

juin [17]3 years ago

5 0

Answer:23

Step-by-step explanation:

Sunny_sXe [5.5K]3 years ago

4 0

Answer:

Step-by-step explanation:

|43|-|-20|

The absolute value bar means whats inside is positive

43 - 20

You might be interested in

Please help me with this question.

Kitty [74]

Answer: D! :)

Explanation:
18 = 3/5(30)
18 = 18

6 0

3 years ago

Find the (a) mean, (b) median, (c) mode, and (d) midrange for the given sample data. An experiment was conducted to determin

egoroff_w [7]

Answer:

The mean phenotype code is 2.72

The median phenotype code is 2.52

The mode phenotype code is 2.

The midrange of the phenotype codes is 2.52

B Only the mode makes sense since the data is nominal.

Step-by-step explanation:

5 0

3 years ago

Customers arrive at a movie theater at the advertised movie time only to find that they have to sit through several previews and

sergij07 [2.7K]

Answer:

a) sample size is 40

Step-by-step explanation:

(a)

$\sigma=4$ minutes

Margin of error, E is 75 seconds E=75/60= 1.25 minutes.

The level of significance $\alpha= 0.05$ for 95% level of significance

For 95% confidence interval $z_{\frac{\alpha}{2}}=1.96$ from standard deviation table

Sample size required, n

$n=\left (\frac{z_{\frac{\alpha}{2}}\cdot \sigma}{E} \right )^{2}=\left (\frac{1.96\cdot4}{75/60} \right )^{2}=39.337984$

Rounding off, n=40

Sample size =40

Keywords:

95% confidence, sample size, Wall Street Journal

3 0

4 years ago

Solve the inequality. <br><br> x – 1 ≤ – 9

Arturiano [62]

Answer:

$X\leq -8$

4 0

3 years ago

Antonia buys a box of 36 soft pretzels she wants to distribute them evenly between her , and her 8 friends and her three brother

kirza4 [7]

Answer:

Step-by-step explanation:

36 pretzels divided by 9 people (Antonia + 8 friends) = 4 per person

36 / 9 = 4

4 0

3 years ago