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Schach [20]
3 years ago
7

Find the length of a segment in the coordinate plane with endpoints (-1 , 2) and (4 , -6).​

Mathematics
1 answer:
Kobotan [32]3 years ago
4 0

Answer:

7

Step-by-step explanation:

If you graph the points and count the points from one coordinate to the other, you get 7.

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Solve the following for x:
taurus [48]

Step-by-step explanation:

2x(squared)+9x+9=—1

2x(squared)+9x+9+1=0

2x(squared)+9x+10=0

multiply the coefficient of x and 10=2x10=20

2x(squared)+9x+10=0

look for two numbers that when added gives 9and when multiplied gives 20

2x(squared)+5x+4x+10=0

(2x(squared)+5x)+(4x+10)=0

find the number and letters that are common in the equations

x(2x+5)+2(2x+5)=0

(x+2) (2x+5)=0

x+2=0

collect like terms

x=0-2

x=-2

2x+5=0

collect like terms

2x=0-5

2x=-5

divide both sides by 2

2x/2=-5/2

x=-5/2

so x=-2 and -5/2

3 0
3 years ago
Help please <br>........​
Dmitry_Shevchenko [17]

9514 1404 393

Answer:

  1. no
  2. yes

Step-by-step explanation:

Put the values of x and y in the equation and see if it is true.

1.  2 = 2×0 . . . . False (not a solution)

2. 12 = 6×2 . . . True (is a solution)

5 0
2 years ago
In 2011, a firm books the following:  increase in cash, $0; increase in inventories $13; increase in accounts receivable, $29; i
zmey [24]
<span>given: increase in inventories= $13 increase in accounts receivable =$29 increase in accounts payable=$17 solution: change in net working capital = increase in inventories + increase in accounts receivable - increase in accounts payable. change in net working capital = 13+29-17 = $25</span>
6 0
3 years ago
A study conducted by the Center for Population Economics at the University of Chicago studied the birth weights of 614 babies bo
MissTica

Answer:

The number of newborns who weighed between 1614 grams and 5182 grams was of 586.

Step-by-step explanation:

Normal Probability Distribution

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

The mean weight was 3398 grams with a standard deviation of 892 grams.

This means that \mu = 3398, \sigma = 892

Proportion that weighed between 1614 and 5182 grams:

p-value of Z when X = 5182 subtracted by the p-value of Z when X = 1614.

X = 5182

Z = \frac{X - \mu}{\sigma}

Z = \frac{5182 - 3398}{892}

Z = 2

Z = 2 has a p-value of 0.9772

X = 1614

Z = \frac{X - \mu}{\sigma}

Z = \frac{1614 - 3398}{892}

Z = -2

Z = -2 has a p-value of 0.0228

0.9772 - 0.0228 = 0.9544.

Out of 614 babies:

0.9544*614 = 586

The number of newborns who weighed between 1614 grams and 5182 grams was of 586.

4 0
3 years ago
I have a 5. In my ones place.The digit in my tens place is. 3 plus the digit in my ones place.The digit in my. Hundreds place is
Nat2105 [25]

Answer:

The number is 385.

Step-by-step explanation:

Digit in ones place = 5

Let the digit in tens place be x

Let the digit ion hundreds place be y.

Digit on tens place is 3 plus the digit in my ones place:

x = 3 + 5 = 8

Digit on hundreds place is 2 less that the digit in my ones Place :

y = 5 - 2 = 3

(yx5) = (385)

The number is 385.

3 0
3 years ago
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