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Svetradugi [14.3K]
3 years ago
7

What is another solution of the equation x + y = 7?

Mathematics
1 answer:
White raven [17]3 years ago
5 0
X=3, y=4
x=-2, y=9
Set x equal to anything, then isolate y to get the other number.
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For all values of x. which expression is equivalent to (3x + 2) + 2(3x +2)
iris [78.8K]

Answer:

9x+6

Step-by-step explanation:

(3x+2)+2(3x+2)

3x+2+6x+4

9x+6

3 0
3 years ago
Write the equation of a circle with center (6,4) that passes through the coordinate (2,1). In your final answer, include all of
Elodia [21]
All points along the circle with be the distance of the radius from the center...so the radius can be found using the Pythagorean Theorem..

r^2=(4-1)^2+(6-2)^2

r^2=9+16

r^2=25

r=5

The equation of the circle can be expressed as:

r^2=(x-h)^2+(y-k)^2 where (h,k) correspond to the center of the circle, (2,1) in this case.

(x-2)^2+(y-1)^2=25

if you wanted it in a more standard form...

(y-1)^2=25-(x-2)^2

(y-1)^2=25-x^2+4x-4

(y-1)^2=-x^2+4x+21

y-1=(-x^2+4x+21)^(1/2)

y=1(+/-)(-x^2+4x+21)^(1/2)
5 0
3 years ago
Read 2 more answers
A point has the coordinates (m,0) and m unequal 0. Which reflection of the point will produce an image located at (0,-m)
melisa1 [442]

Answer:

y = -x

Step-by-step explanation:

it because the reflection change the value of x become -y

so the reflection we can use is the line y = -x

8 0
3 years ago
A savvy shopper combines a 25% off coupon with the store’s existing 25% off sale. Ignoring sales tax, how much of the base price
Allushta [10]

Answer: This is late but they can expect to pay b.)56.25%


5 0
3 years ago
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Graphing Exponential Function in Exercise ,sketch the graph of the function.See example 3 and 4.
Vlad [161]

Answer:

The attached image shows the graph for the given function.

Step-by-step explanation:

We are given the following function in the question:

y(x) = 2^{x-1}

We have to graph the given function.

Properties of the given function are:

  • It is an exponential function of the form y(x) = a^{x + b}
  • Here, a = 2, b = -1
  • The y-intercept of the given function is (0,0.5)
  • There is no x-intercept.
  • The domain of the given function is all real numbers.
  • The range of given function is (0,\infty)

The attached image shows the graph for the given function.

5 0
3 years ago
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