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2 years ago

Find the length of the diagonal of a square with perimeter 32.

Mathematics

1 answer:

snow_lady [41]2 years ago

7 0

Answer:

i think A. because she is 4/2

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Please help me out! It’s urgent!

LuckyWell [14K]

Answer:

8 square units

Step-by-step explanation:

Area of the shaded shape = sum of shaded squares × 1 square unit

= 8 × 1 = 8 square units

6 0

2 years ago

A research scientist wants to know how many times per hour a certain strand of bacteria reproduces. The mean is found to be 13.6

dimaraw [331]

Answer:

The confidence interval is $13.4< \mu < 13.8$

Step-by-step explanation:

From the question we are told that

The sample mean is $\= x = 13.6$

The standard deviation is $\sigma = 1.9$

The sample size is $n = 189$

given that the confidence level is 85% then the level of significance is mathematically represented as

$\alpha = (100 - 85 )\%$

$\alpha = 0.15$

Next we obtain the critical value of $\frac{\alpha }{2}$ from the normal distribution table the value is

$Z_{\frac{\alpha }{2} } = 1.44$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{\sigma}{\sqrt{n} }$

=> $E = 1.44* \frac{1.9}{\sqrt{189} }$

=> $E = 0.1990$

The 85% confidence interval is mathematically represented as

$\= x - E < \mu$

=> $13.6- 0.1990 < \mu < 13.6+ 0.1990$

=> $13.4< \mu < 13.8$

5 0

3 years ago

100 Points and I will mark you brainiest if right.

lutik1710 [3]

Answer:

131072

Step-by-step explanation:

Let's put it into expression form and simplify as much as possible :

$\frac{(2)(4)(8)(16)(32)(64)}{2^{4} }$ =

$\frac{2097152}{16}$ =

131072

Hope this helped and have a good day

4 0

2 years ago

Read 2 more answers

How do i solve this? and what’s the answer?

Vika [28.1K]

Im pretty sure x y should be 30, I hope this helps.

6 0

2 years ago

PLEASE HELP THANKS

irinina [24]

Answer:

38/5

Step-by-step explanation:

6 0

3 years ago