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lukranit [14]
3 years ago
6

Ella went trick-or-treating with her family. When

Mathematics
2 answers:
Aleksandr [31]3 years ago
6 0

Answer:

6.6 because she put her candy bag on a scale and if each piece of candy weighs 12 grams,

Kazeer [188]3 years ago
5 0

Answer:

Step-by-step explanation:

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Exponent rules . Simplify each expression . HELPPP pls on these 2 problems
Vedmedyk [2.9K]

Step-by-step explanation:

Please refer to the attachment

8 0
3 years ago
Which values are within the range of the piecewise-defined function?
musickatia [10]

Answer:  y < 1

<u>Step-by-step explanation:</u>

\begin{array}{c|c||l}\underline{x; x-3}&\underline{y=-x-2}&\\-3&-(-3)-2=1&\text{approaching but not including 1}\\-2&-(-2)-2=0&\\-1&-(-1)-2=-1&\end{array}

The first function has the range of y < -4

The second function has the range of y = -3

The third function has the range of y < 1

The largest y-value is 1 and the smallest y-value is -∞, therefore the range (y-values) are from -∞ to 1 → y < 1

6 0
3 years ago
Read 2 more answers
Jake charges $50 plus $2 per window. Hannah charges $20 plus $5 per window. For how many windows washed do they charge the same
tester [92]

Answer:

10

Step-by-step explanation:

50 plus 10 windows by 2 dollars will give you 70 dollars.

20 plus 10 Windows by 5 dollars give you 70 dollars

6 0
3 years ago
Read 2 more answers
A study of recent records of car accidents revealed that average proportion of drivers who were distracted by their phones at th
aksik [14]

Answer:

At least 547 records need to be studied.

Step-by-step explanation:

In a sample with a number n of people surveyed with a probability of a success of \pi, and a confidence interval 1-\alpha, we have the following confidence interval of proportions.

\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}

In which

Z is the zscore that has a pvalue of 1 - \frac{\alpha}{2}.

And the margin of error is:

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

95% confidence interval

So \alpha = 0.05, z is the value of Z that has a pvalue of 1 - \frac{0.05}{2} = 0.975, so z = 1.96.

In this problem, we have that:

M = 0.04, p = 0.35

M = z\sqrt{\frac{\pi(1-\pi)}{n}}

0.04 = 1.96\sqrt{\frac{0.35*0.65}{n}}

0.04\sqrt{n} = 0.93486

\sqrt{n} = 23.37

n = 546.2275

At least 547 records need to be studied.

6 0
4 years ago
PlSSS HELP IF YOU TURLY KNOW THISS
o-na [289]

Answer:

x=3  hope this helps

Step-by-step explanation:

8 0
3 years ago
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