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ohaa [14]
3 years ago
15

Find the missing number: 40, 61, 85, ?, 142

Mathematics
2 answers:
goldfiish [28.3K]3 years ago
5 0
106 because, 85 plus 21 = 106
Kitty [74]3 years ago
5 0
The answer is 112 because the number in between keeps going up by three. I know that sounds confusing but here is my logic.

61-40=21 21+3=24 and 61+24=85 so this means that if we add 3 to 24, we will get 27 and if you add 27 to 85 you get 112. Then after that add 3 to 27 and get 30. Then add 30 to 112 and get 142.

So basically the answer is 112 because the number being added to the other numbers goes up by 3 every time. Hope that helped:)
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The step function f(x) is graphed.<br>What is the value of f(0)?<br>-2<br>-1<br>0<br>1
yarga [219]

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The value of f(0) is Option (A) : - 2

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3 years ago
Fiona found 47 pens for $3.00 . Please help Fiona by figuring out the ratio. (round to 2 decimal places)
shepuryov [24]

Answer:

0.06

Step-by-step explanation:

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3 years ago
A university dean is interested in determining the proportion of students who receive some sort of financial aid. Rather than ex
vredina [299]

Answer:

C. One can be​ 95% confident that the true proportion of all students receiving financial aid is between 0.52 and 0.66

Step-by-step explanation:

Given that the confidence interval is a term that defines a range of values with the probability to contain a population value that has an actual degree of confidence.

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3 0
3 years ago
Need help #1. The answer is shown, but I don’t know how to get to the answer. Please teach and show steps.
Rufina [12.5K]

Answer:

B

Step-by-step explanation:

We are given that <em>x</em> and <em>y</em> are functions of time <em>t</em> such that <em>x</em> and <em>y</em> is a constant. So, we can write the following equation:

x(t)+y(t)=k,\text{ where $k$ is some constant}

The rate of change of <em>x</em> and the rate of change of <em>y</em> with respect to time <em>t</em> is simply dx/dt and dy/dt, respectively. So, we will differentiate both sides with respect to <em>t: </em>

<em />\displaystyle \frac{d}{dt}\Big[x(t)+y(t)\Big]=\frac{d}{dt}[k]<em />

Remember that the derivative of a constant is always 0. Therefore:

\displaystyle \frac{dx}{dt}+\frac{dy}{dt}=0

And by subtracting dy/dt from both sides, we acquire:

\displaystyle \frac{dx}{dt}=-\frac{dy}{dt}

Hence, our answer is B.

3 0
3 years ago
Read 2 more answers
31&lt;9 and --3X = 4X = 15X = 12X = 11x = 18
JulsSmile [24]

Given:

\frac{3x}{4}

Find: values belong to the solution

Explanation:

\begin{gathered} \frac{3x}{4}

and

\begin{gathered} -\frac{x}{6}\ge-3 \\ -x\ge-18 \\ x\leq18 \end{gathered}

so those values are solution which is x<12

i.e; x=4 and x=11

5 0
1 year ago
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