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3 years ago

What type of number is negative 15 over 3

Mathematics

1 answer:

marta [7]3 years ago

5 0

Answer:

Rational number

Step-by-step explanation:

Rational numbers are defined as the quotient (division result) of two integers

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Y is a number such that 6y = 12

nataly862011 [7]

6y = 12
y = 12/6
y = 2

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3 years ago

HELP PLEASEEEE THERES PICCTURESSS

LenKa [72]

I hate school so much <3

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2 years ago

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A study of the relationship between age and various visual functions (such as acuity and depth perception) reported the followin

maks197457 [2]

Answer:

(a) $\sum x_i=56.68$ and $\sum x_i^2=197.46$

(b) The sample variance is $s^2=0.530$ and the sample standard deviation is $s=0.728$

Step-by-step explanation:

(a)

The sum of these 17 sample observations is

$\sum x_i=2.79\:+2.57+\:2.73\:+3.75\:+2.27+\:2.75+\:4.00+\:4.22+\:3.88+\:4.35+\:3.41+\:4.57+\:2.38+\:3.73\:+2.75+\:3.47+\:3.06\\\\\sum x_i=56.68$

and the sum of their squares is

$\sum x_i^2=2.79^2\:+2.57^2+\:2.73^2\:+3.75^2\:+2.27^2+\:2.75^2+\:4.00^2+\:4.22^2+\:3.88^2+\:4.35^2+\:3.41^2+\:4.57^2+\:2.38^2+\:3.73^2\:+2.75^2+\:3.47^2+\:3.06^2\\\\\sum x_i^2=197.46$

(b)

The sample variance, denoted by $s^2$ , is given by

$s^2=\frac{S_{xx}}{n-1}$

where $S_{xx} =\sum x_i^2-\frac{(\sum x_i)^2}{n}$

Applying the above formula we get that

$S_{xx}=197.46-\frac{(56.68)^2}{17}\\\\S_{xx} =8.482$

$s^2=\frac{8.482}{17-1}=0.530$

The sample standard deviation, denoted by <em>s</em>, is the (positive) square root of the variance:

$s=\sqrt{s^2}$

Applying the above formula we get that

$s=\sqrt{0.530}=0.728$

3 0

3 years ago

Please give me correct answer

ikadub [295]

Answer:

answer of question number 1 is 2400, 2880, 3600 respectively.

answer of question number 2 is 1384 and 1680.

Step-by-step explanation:

100×24=2400

120×24=2880

150×24=3600

692×2=1384

420×4=1680

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3 years ago

Asher catches 8 passes in 3 football games. At this rate, how many passes does he catch in 15 games?

Ivahew [28]

Answer:

40 passes

Step-by-step explanation:

If Asher can make 8 passes in 3 football cames, and you need to find how many passes he can make in 15, you need to multiply 8 x 5. This is because he made 5 times as many passes (3 x 5 = 15)

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3 years ago

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