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vampirchik [111]

2 years ago

8

Round 45,621 to the nearest hundred.

2 answers:

pogonyaev2 years ago

8 0

It's already rounded

Schach [20]2 years ago

4 0

Answer:

The answer is 45600 as 621 is less than 650 and should be rounded down.

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oksian1 [2.3K]

The answer should be 315.95

3 0

3 years ago

Read 2 more answers

The sign of the product of two integers with the same sign is positive. What is the sign of three integers with the same sign? E

Svetradugi [14.3K]

Can be both, because if all three were negative, it would be

negative*negative= positive
positive*negative=negative
example: -1*-1*-1=-1

but if all three were positive, it would obviously be positive, because any number of positives can't make negatives in multiplication.

4 0

3 years ago

Help fast please ASAP

Aloiza [94]

Answer:

a rotation of 180° about point (0.5, -0.5) followed by a dilation of 0.5

Step-by-step explanation:

3 0

2 years ago

Circle numbers (1,2,3), draw a box around variables (x,y,z) and underline & identify operation key words for each equation.

swat32

Answer:

test

Step-by-step explanation:

this is a test

6 0

3 years ago

In a random sample of 9 residents of the state of Florida, the mean waste recycled per person per day was 2.4 pounds with a stan

alina1380 [7]

<h2>Answer with explanation:</h2>

When the sample size is small (< 30) and the population standard deviation is unknown , then we use t-test.

The confidence interval for population mean will be :

$\overline{x}\pm t^*\dfrac{s}{\sqrt{n}}$ (1)

, where $\overline{x}$ = sample mean

t* = Critical value (based on degree of freedom and significance level).

s= sample standard deviation

n= sample size.

As per given we have

n= 9

Degree of freedom = n-1 = 8

$\overline{x}=2.4$

s= 0.75

Significance level = $\alpha=1-0.80=0.20$

Using students' t distribution table ,

Critical value : $t^*=t_{\alpha/2,df}=t_{0.10,8}=1.3304$

We assume that the population is approximately normal.

Then, a 80% confidence interval for the mean waste recycled per person per day for the population of Florida will be :

$2.4\pm (1.3304)\dfrac{0.75}{\sqrt{8}}$ (Substitute the values in (1))

$2.4\pm (1.3304)\dfrac{0.75}{2.82842712475}$

$2.4\pm (1.3304)(0.265165042945)$

$2.4\pm 0.352775573134\approx2.4\pm0.353=(2.4-0.353,\ 2.4+0.353)=(2.047,\ 2.753)$

Hence, the 80% confidence interval for the mean waste recycled per person per day for the population of Florida. = (2.047, 2.753)

4 0

3 years ago