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3 years ago

Compare and order integers 0,13,-13

Mathematics

2 answers:

natima [27]3 years ago

8 0

It should be -13 0 13

Illusion [34]3 years ago

4 0

13 is a positive integer, -13 is a negative integer. 0 is the integer that separates positive and negative numbers.

Every negative integer is less than any positive integer.

So, their order is $-13, 0, 13$

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A random sample of the amounts for 22 purchases was taken. The mean was $42.97, the standard deviation was $22.82, and the m

Illusion [34]

Answer: a) 84 and b ) 2084

Step-by-step explanation:

Given : Sample standard deviation : s= $22.82

(Population standard deviation is unknown ) , so we use t-test.

Critical value or the 95% confidence intervals : $t_{n-1}*=2.0$

Formula to find the sample size :

$n=(\dfrac{t^*\cdot s}{E})^2$

a) E = 5

$n=(\dfrac{(2)\cdot 22.82}{5})^2$

$n=(9.128)^2=83.320384\approx84$

i.e. Required sample size : n= 84

b) E = 1

$n=(\dfrac{(2)\cdot 22.82}{1})^2$

$n=(45.64)^2=2083.0096\approx2084$

i.e. Required sample size : n= 2084

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3 years ago

When cross canceling fractions, can you multiply vertically?

mr Goodwill [35]

I think the answer is no

3 0

3 years ago

On the coloring sheet, thd a ratio<br> is equivalent to 3/10.

DerKrebs [107]

Answer:

Equivalent ratios:

3 : 10 6 : 20 9 : 30 12 : 40 15 : 50 18 : 60 21 : 70 24 : 80 27 : 90 30 : 100 33 : 110 36 : 120 39 : 130 42 : 140 45 : 150 48 : 160 51 : 170 54 : 180 57 : 190 60 : 200 63 : 210 66 : 220 69 : 230 72 : 240 75 : 250 78 : 260 81 : 270 84 : 280 87 : 290 90 : 300

<u>( Brainlyst will help my rank <3 )</u>

8 0

3 years ago

F(x) =5+ 1 , find f(-4)

tester [92]

Answer:

Step-by-step explanation:

F(x) =5x + 1 , find f(-4)

Putting value of x = 4

F(4) = 5(4) + 1

= 20 + 1 = 21

5 0

3 years ago

-5a to the second power-7a

kakasveta [241]

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3 years ago