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katrin2010 [14]

2 years ago

12

Janine has 86 hockey cards in one book and 105 hockey cards in another book. The hockey cards come in packages of 5 cards. If Ja

nine bought all of her hockey card in packages, how many packages did she buy?

1 answer:

wel2 years ago

8 0

Answer:

ur pfp... pls get help NOWWW

Step-by-step explanation:

pls stop this madness

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0 A maker of a certain brand of low-fat cereal bars claims that the average saturated fat content is 0.5 gram. In a random sampl

balandron [24]

Answer:

<em>The first step is to determine the average </em>

$x= \frac{0,6+0,7+ 0,7+0,3+0,4+ 0,5+ 0,4 +0,2}{8}\\\ x= 0,475$

<em>The exercise says it’s a normal distribution: (n=8)</em>

$s^{2}= \frac{1}{n-1} ((0,6.x)^2+2(0,7-x)^2+(0.3-x)^2+2(0.4-x)^2+(0.5-x)^2+(0.2-x)^2)\\\ \frac{1}{7}*0,235 = 0,0336 \\\\ s= 0183$

<em>According to the exercise, the mean is equal to 0,5 then the value of t of the distribution can be obtained </em>

<em />

$t= \frac{x-u}{\frac{s}{\sqrt{n} }}\\\ t= \frac{0,475 - 0,5}{0,183}\\\ t= -0,3860$

<em>The variable t has 7 grade to liberty, we calculate the p-value as: </em>

$2* P(t < - 0,3860)= \\\ 2* 0,3554 = 0,7108$

This value is very high, therefore the hypothesis is not rejected

7 0

3 years ago

PLZZ HELP Fill in the blank with the correct response. The slope of the graph of y = x is ___a0.

Lesechka [4]

Answer:

1

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

y = x ← is in slope- intercept form

with slope m = 1

6 0

3 years ago

Can anyone help me with this question

pashok25 [27]

Log base 3 of 4 + log base 3 of 11= log base 3 of 4•11; Answers is 11

4 0

3 years ago

0.48 = log x solve for x

marissa [1.9K]

Answer: x≈3

Step-by-step explanation:

0.48 = log x , this could also be written as :

$log_{10}$ x = 0.48 , that is

x = $10^{0.48}$

x = 3.01995172

x≈ 3

8 0

3 years ago

A migrating bird flies 390 miles in 15 hours. How many miles does it fly in 4 hours?

viva [34]

Answer:

104

Step-by-step explanation:

390/15=26

26 times 4 is 104

6 0

3 years ago