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2 years ago

Which of the following is a rational number?

Mathematics

1 answer:

Oksanka [162]2 years ago

3 0

Answer:

25!

Step-by-step explanation:

bc 25 squared = 5--which is rational.

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Which is not true statement 10.345>10.340

alexandr402 [8]

Awnser is in the photo below

5 0

2 years ago

Please help

Varvara68 [4.7K]

Answer:

$6 = cost of small box

$8 = cost of large box

Step-by-step explanation:

Let s = cost of small box

l = cost of large box

(1) 12s + 3l = 96 (2) 6s + 6l = 84

Multiply by -2 <u> -24s - 6l = -192</u>

-18s = - 108

s = $6 = cost of small box

12(6) + 3l = 96

72 + 3l = 96

3l = 24

l = $8 = cost of large box

7 0

2 years ago

Write the following in fraction form.<br> 24 hours per day

sertanlavr [38]

Answer:

24 hours/1 day

Step-by-step explanation:

hours per day is a rate which can be expressed in the form of a fraction. since there are 24 hours in one day you know that as a fraction, they are equal to 1. you can then put 24hours/1day.

4 0

1 year ago

Pj will begin her cake deliveries at 12:20. She asked me to remind her 30 minutes befor she has to leave. What time should I rem

algol [13]

Answer:

11:50 is the answer

6 0

2 years ago

Weights were recorded for all nurses at a particular hospital, the mean weight for an individual nurse was 135 lbs. with a stand

Aloiza [94]

Given:
population mean, μ =135
population standard deviation, σ = 15
sample size, n = 19

Assume a large population, say > 100,
we can reasonably assume a normal distribution, and a relatively small sample.
The use of the generally simpler formula is justified.

Estimate of sample mean
$\bar{x}=\mu=135$

Estimate of sample standard deviation
$\s=\sqrt{\frac{\sigma^2}{n}}$
$=\sqrt{\frac{15^2}{19}}=3.44124$ to 5 decimal places.

Thus, using the normal probability table,
$P(125$
$=P(\frac{125-135}{3.44124}$
$=P(-2.90593$
$=P(Z$
$=P(Z$

Therefore
The probability that the mean weight is between 125 and 130 lbs
P(125<X<130)=0.0731166-0.0018308
=0.0712858

3 0

2 years ago