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7nadin3 [17]
3 years ago
15

X ​2 ​​ +y ​2 ​​ +4x−5=0 standard equation Really need help I’m confused

Mathematics
2 answers:
Firdavs [7]3 years ago
4 0
I used the completing the square method to get the (x+2)^2. The final line is in standard form.

Zina [86]3 years ago
3 0
X2 plus Y2 plus 4X -5 equals zero security question
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The length of time it takes to find a parking space at 9 A.M. follows a normal distribution with a mean of 4 minutes and a stand
DedPeter [7]

Answer:

3.24 minutes

Step-by-step explanation:

Use a calculator or chart to find the z-score.

P(Z > z) = 0.60

P(Z < z) = 0.40

z = -0.253

Find the time associated with the z-score.

z = (x − μ) / σ

-0.253 = (x − 4) / 3

x = 3.24

6 0
3 years ago
Help me out with this question (geometry)
nadezda [96]

Answer:

116

Step-by-step explanation:

13x-1 = 2(6x+4)

13x-1 = 12x+8

x=9

6 0
3 years ago
I need help on these 3 problems cause I’m stuck on them someone pls help
Pavlova-9 [17]

Answer:

Step-by-step explanation:

4. Nicole can make 7 quarts of lemonade with 10 cups of sugar.

If 3/4 cup of sugar is used to make 1 quart of lemonade and 10 cups of sugar are available, then you multiply 3 times 10 (when multiplying fractions, you only multiply with the numerator, not the denominator) which will give you 30.

Now, you can write it as 30/4. Using simple division, you find that 30/4 is 7.5 (or 7 and 1/2), and because we're trying to find how many full quarts we can make using 10 cups of sugar, your answer will be 7.

5. Each person will get 0.83 repeating (or 5/6) boxes of raisins.

In this problem, we have 6 people and we have to share 5 boxes of raisins among all of them. We know that each person can't get 1 because there would have to be 6 boxes (1 for each person), so we have a fraction (or decimal, depending on where you're at).

Dividing 5/6, you'll simply get 5/6 because you can't simply this any further, but if you were to write this as a fraction, you'd get 0.83 repeating (over the 3).

6. Each class will receive 30 boxes of cracker jacks.

We know that there are 153 boxes of cracker jacks available, and this needs to then be split among 5 different classes. So, to find the answer, we have to divide 153 by 5. In doing that, we get 30.6, but because we're trying to find the whole number that the classes will receive, as you can't get a fraction of a box (at least, I assume), then each class will get 30 with 3 boxes remaining.

3 0
2 years ago
Don operates a taxi business, and this year one of his taxis was damaged in a traffic accident. The taxi was originally purchase
scoray [572]
I believe the answer is c
3 0
3 years ago
Solve for w.<br> W + 33 = 67<br> W =
Margaret [11]

Answer:

The answer is 34, bec what you do is: 67 - 33.

7 0
3 years ago
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