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1 year ago

16.11 ÷ 99 19.6 ÷ 20 0.9 ÷ 11 50.8 ÷ 45 0.1414 ÷ 2 0.213 ÷ 31

1 answer:

4 0

BEFORE YOU USE THE ANSWERS! I USED CALCULATOR AND IT TOLD ME THIS SO IM NOT SO SURE IF IM CORRECT!!
1: 0.16272727272
2: 0.98
3: 0.08181818181
4: 1.12888888889
5: 0.0707
6: 0.00687096774

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Micaela spent $32 on writing utensils pens cost four dollars and pencils cost two dollars if she bought a total of 10 and how ma

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Answer:

6 pens and 4 pencils

Step-by-step explanation:

6 x 4 = 24

4 x 2 = 8

24 + 8 = 32

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2 years ago

Which expression is equivalent to a^m divide a^n?(20points)

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<h3><u>Answer</u> :</h3>

$\bigstar\:\boxed{\bf{\dfrac{a^m}{a^n}=a^{m-n}}}$

<h3><u>Learn More</u> :</h3>

$\dag\sf\:\:a^m\times a^n=a^{m+n}$

$\dag\sf\:\:\dfrac{a^m}{a^n}=a^{m-n}=\dfrac{1}{a^{n-m}}$

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$\dag\sf\:\:(a^{m})^n=a^{mn}$

$\dag\sf\:\:a^1=a$

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2 years ago

An Uber fare in San Diego is $3.50 for the first ½ mile and additional mileage charged at a rate of $0.30 for each additional 0.

ANEK [815]

Answer:

3.6 miles

Step-by-step explanation:

For a trip of x miles, there are x-0.5 miles of it that are "additional", which makes (x-0.5)/0.1 additional tenths.

Then the charges (in dollars) are ...

... 3.50 + 0.30(x -0.5)/0.1

Adding a tip of $2 and requiring the total be less than $15 gives ...

... 3.50 + 0.30(x -0.5) + 2.00 ≤ 15.00

... 5.50 + 3(x - 0.5) ≤ 15.00 . . . . simplify a bit

... 4.00 +3x ≤ 15.00 . . . . . . . . . . simplify more

... 3x ≤ 11.00 . . . . . . subtract 4.00

... x ≤ 3.667 . . . . . . divide by 3

Miles are measured in tenths. We cannot go 3.7 miles on $15, but we can go 3.6 miles.

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3 years ago

Will give brainliest ✧･ﾟ: * Thank you for answering if you do! ✧･ﾟ: *

Dvinal [7]

1/4 of the squares aren’t shaded

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2 years ago

Read 2 more answers

Previous Question Question 14 of 20 Next Question A company randomly surveys 15 VIP customers and records their customer satisfa

Ann [662]

Answer:

71.4699, 81.7301.

Step-by-step explanation:

So, the following are the scores: 74

$Let,\;the\;total\;sum\;of\;the\;scores\;be:\sum x =1149$

$Then,\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\;\sum x^2=89795$

The length of the score : 15

Then, let the size of the scores be n : 15.

Then, we have to find the mean.

$\bar{x}=\frac{\sum x}{n}$

$=\frac{1149}{15}=76.6$

$Then,\;we\;have\;to\;find\;standard\;deviation:S=\sqrt{\frac{\sum x^2-n.(\bar{x})^2}{n-1} }$

$=\sqrt{\frac{89795-15\times(76.6)^2}{15-1} }=11.2808$

$The\;degree\;of\;freedom:n-1=14$

$So,\;the\;significant\;level:\alpha=1-0.90=0.10$

$and\;the\;critical\;value:t_{\frac{\alpha}{2} }=1.7613$

$Finally:\\=\bar{x}\;\pm\;t_{\frac{\alpha}{2} }\;\frac{S}{\sqrt{n} }\\=(71.4699, 81.7301)$

6 0

2 years ago