3 years ago

What is the square root of 13

Mathematics

1 answer:

vodka [1.7K]3 years ago

5 0

Square root of 13 is an irrational number

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Helppppppppppppppppppppp

UNO [17]

Answer:

z = 60

Step-by-step explanation:

100+20+z=180

120+z=180

z=60

8 0

3 years ago

(a) Find a 90% confidence interval for the population mean price (per 100 pounds) that farmers in this region get for their wate

Anon25 [30]

Answer:

The margin of error (E) $=0.49$

Step-by-step explanation:

Given,

mean $\bar{x}=6.88$

standard deviation $\sigma=1.90$

sample size $n=41$

$90\% \quad \text{confidence interval}$

Critical value $=\frac{z_\alpha}{2}\quad \quad\quad[\because\;\alpha=1-\text{confidence interval}]$

$=1-0.90$

$\Rightarrow \alpha=0.1$

Critical value $=\frac{z_{0.1}}{2}$

$=z_{0.05}$

$=1.645$

The margin of error (E) $=\frac{z_\alpha}{2} \times\frac{\sigma}{\sqrt{n} }$

$=1.645\times\frac{1.90}{\sqrt{41} }$

$=0.49$

Hence, The margin of error (E) $=0.49$

Complete question is attached in below.

7 0

3 years ago

Could anyone please help me ?

timama [110]

Answer:

please one times search answer in search engines ok

6 0

2 years ago

Teacher takes about 25 minutes to make out a test for a mathematics class. How long will it take to make out tests for all five

Akimi4 [234]

Answer:

2h 5min

Step-by-step explanation:

1 class: 25 min

5 classes: 25 x 5 = 125 min = 2h 5min

6 0

3 years ago

three softball players wrote down their batting average : amy wrote 12 or 30 , sue wrote .34 , kit wrote 9/21 . who is a better

Maksim231197 [3]

Amy: 12 or 30
Sue: 0.34
Kit: 9/21
Kit is the better hitter.

Hope this helps :^)

5 0

2 years ago

Read 2 more answers