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umka2103 [35]
4 years ago
9

Elevator 1 moved up 10 feet from the ground level. Its position is labeled as +10. Elevator 2 moved down 5 feet from the ground

level.
Mathematics
1 answer:
Sindrei [870]4 years ago
7 0
-5.
Idk if this is right
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What is 1.83 repeating as a fraction?
maks197457 [2]
The answer to this question would be: 1 5/6

To change a decimal number into fraction, you need to divide the number on the right of decimal point with 1. In this case, the number is 0.83.
This number is hard since .83 doesn't have many factors. To find the answer you can try to multiply the decimal with some number until it close to 1(no decimal left)
0.83* 2= 1.66
0.83* 3= 2.49 ---> close to half, if you find this number, you can try to double it
0.83* 4= 3.32
0.83* 5= 4.15
0.83* 6= 4.98---> close to 1, that means there is high probability that the number can be divided by 6 
0.83 would be 4.98/6, but if we assume that the number is 0.8333...... then 0.83 would be 5/6. So, 1.83 would be 1 5/6
4 0
3 years ago
Read 2 more answers
Ill give brainliest and 5 stars and thanks if answer this what is the result of substituting for y in the bottom equation
GREYUIT [131]

We have two set of solutions , (  \frac{\sqrt{29} }{2}  ,  \frac{\sqrt{29} }{2} + 3 ) , (  -\frac{\sqrt{29} }{2} + 3 ,  -\frac{\sqrt{29} }{2} + 3).

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

We have , the following equations:

y = x+3  and y = x^{2} +2x -4 . Let's substitute value of y in bottom equation:

⇒ y = x^{2} +2x -4

⇒ x+3 = x^{2} +2x -4

⇒ x^{2} +x -7= 0

Roots of quadratic equation are given by: a = 1, b= 1 , c = -7

x = \frac{\sqrt{b^{2}-4ac} }{2a}

⇒ x = \frac{\sqrt{b^{2}-4ac} }{2a}

⇒ x = \frac{\sqrt{1^{2}-4(1)(-7)} }{2(1)}

⇒ x = \frac{\sqrt{29} }{2} which is actually x = ± \frac{\sqrt{29} }{2} .

We know that y = x+3,

⇒ y = ± \frac{\sqrt{29} }{2} + 3.

We have two set of solutions , (  \frac{\sqrt{29} }{2}  ,  \frac{\sqrt{29} }{2} + 3 ) , (  -\frac{\sqrt{29} }{2} + 3 ,  -\frac{\sqrt{29} }{2} + 3).

5 0
3 years ago
Please help I need this done by tonight!!
kompoz [17]

Answer:

The picture is black, is it just me?

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there are 19 pieces of candy in the candy jar Mrs Breen lost her mind and started eating all these mindlessly she realize she ha
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The percent of candy she ate is 42%
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3 years ago
What is the purpose of calculating a confidence interval? Multiple Choice To provide a range of values that has a certain large
Nadusha1986 [10]

Answer:

To provide a range of values that, with a certain measure of confidence, contains the population parameter of interest.  

To provide a range of values that has a certain large probability of containing the population parameter of interest.

Step-by-step explanation:

For estimating a parameter value, it is important to know the statement or degree of confidence that the interval contains the parameter value along with knowing the point estimate and the amount of possible error in the point estimate (which is the interval likely to contain the parameter value).Thus , an interval estimate of a population parameter is the confidence interval with a statement of confidence that the interval contains the parameter value. The confidence interval is a range of values around the statistic that are believed to contain, with a certain probability (say 99%) the true value of that statistic or the population value.

8 0
3 years ago
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