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cricket20 [7]
2 years ago
6

Solve the equation. |k + 7| = 3

Mathematics
2 answers:
ruslelena [56]2 years ago
7 0

Answer:

k = -4

Step-by-step explanation:

Elena L [17]2 years ago
5 0

Answer:

k= 3-7= -4

Step-by-step explanation:

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A family has two cars. the first car has a fuel efficiency of 30 miles per gallon of gas and the second has a fuel efficiency of
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X : the gas used by first car in 1 particular week
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x + y = 60 \\ x = 60 - y
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5 0
3 years ago
Find the equation for the circle with a diameter whose endpoints are (-5, -3) and (3,2).
densk [106]

Answer:

  (x +1)^2 +(y +0.5)^2 = 22.25

Step-by-step explanation:

The center of the circle is the midpoint of the diameter, so is ...

  (h, k) = ((-5, -3) +(3, 2))/2 = (-5+3, -3+2)/2 = (-1, -1/2)

The circle formula is then ...

  (x -h)^2 +(y -k)^2 = r^2

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We can find r^2 by substituting one of the points for (x, y).

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Then the circle equation is ...

  (x +1)^2 +(y +0.5)^2 = 22.25

3 0
3 years ago
3x - 1/5= x+1/3 Could you please solve this as soon as possible
VARVARA [1.3K]

x = 0.27

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4 0
3 years ago
The manager of a shopping mall distributed a customer-satisfaction survey by handing it to people as they came through one of th
Tresset [83]

Answer:

The correct option is D.  No, because a random sample from all customers of the shopping mall was not selected

Step-by-step explanation:

In statistics, Bias can be described as a term which depicts error if a sample is not taken evenly or it depicts errors taken from an unjust sampling.

In statistics, sampling bias means the errors which occur if one part of the population is favoured more then the rest of the populations. In this kind of bias, the individuals for experimentation are not chosen randomly.

As the customer satisfaction survey was distributed in only one of the gates hence, it does not give a generalized result and the result is biased.

6 0
3 years ago
Read 2 more answers
Which equation shows the quadratic formula used correctly to solve 7x2 = 9 + x for x?
abruzzese [7]
The equation should be 7x^2 -x-9=0
4 0
3 years ago
Read 2 more answers
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