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nevsk [136]
2 years ago
4

Please help ASAP!

Mathematics
2 answers:
Pachacha [2.7K]2 years ago
8 0

Answer:

The correct option is 4.

Step-by-step explanation:

It is given that Myra solved an inequality to determine the number of rolls of wrapping paper the school band must sell to meet their fundraising goal.

From the given number line it is clear that the solution of the inequality is more than 188 because the blue line moves towards right in the given number line.

188 is not included in the solution set because there is an open circle on 188.

The number of rolls of wrapping paper the school band must sell to meet their fundraising goal is more than 188 rolls.

Therefore the correct option is 4.

Natalka [10]2 years ago
6 0

Answer: A

Step-by-step explanation: open dot means ≤or≥ and closed dot means more than or less than depding on the arrow  

also the line under the the two sings means =  

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We know that
1 liter------------> is equal to 1000 ml

if for one cake--------------> are required 80 milliliters of lemon juice
<span> for 11 cakes--------------> X
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X=11*240---------> 2640 ml

<span>liters of lemon juice needed to make 11 cakes
880 ml/1000------> 0.88 lt

</span><span>liters of yogurt needed to make 11 cakes
2640 ml/1000--------> 2.64 lt

the answer is
are needed 0.88 lt </span>of lemon juice and 2.64 lt of yogurt to make 11 cakes<span>

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According to Net Market Share, Microsoft's Internet Explorer browser has 53.4% of the global market. A random sample of 70 users
Natalija [7]

Answer:

Probability that 32 or more from this sample used Internet Explorer as their browser is 0.9015.

Step-by-step explanation:

We are given that according to Net Market Share, Microsoft's Internet Explorer browser has 53.4% of the global market.

A random sample of 70 users was selected.

Let \hat p = <u><em>sample proportion of users who used Internet Explorer as their browser.</em></u>

The z score probability distribution for sample proportion is given by;

                            Z  =  \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } }  ~ N(0,1)

where, p = population proportion of users who use internet explorer = 53.4%

           \hat p = sample proportion = \frac{32}{70} = 0.457

           n = sample of users = 70

Now, probability that 32 or more from this sample used Internet Explorer as their browser is given by = P( \hat p \geq 0.457)

      P( \hat p \geq 0.457) = P( \frac{\hat p-p}{\sqrt{\frac{\hat p(1-\hat p)}{n} } } \geq \frac{0.457-0.534}{\sqrt{\frac{0.457(1-0.457)}{70} } } ) = P(Z \geq -1.29)

                            = P(Z \leq 1.29) = <u>0.9015</u>

The above probability is calculated by looking at the value of x = 1.29 in the z table which has an area of 0.9015.

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