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Elena L [17]
2 years ago
5

How many solutions does the system have? 3x + y = 8 2x + 2y = 8

Mathematics
1 answer:
Lady bird [3.3K]2 years ago
3 0

Answer:

There is one solution

Step-by-step explanation:

I did the Khan Academy lesson and I got it correct.

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2 years ago
What is the answer to 2/9 x 2 9/10
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The answer to your problem is 58/90
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3 years ago
The square shown has a perimeter of 32 units. The square is rotated about line k. What shape is created by the rotation and what
harkovskaia [24]
The perimeter of the square is calculated through the equation,
                                        4x = P
where P is the perimeter and x is the measure of the sides.

When P is 32 units then,
                                         32 units = 4(x)
                                                 x = 8 inches

This 8 inches is the diameter of the cylinder formed by the rotation. 
The circumference of the base is calculated through,
                            C = 2πr = πD
Substituting the known values,
                              C = π(8 units) = <em>8π units
</em>
<em></em>When π is equal to 3.14, we solve for the numerical value of the cylinder as follows,
<em>                                      C = 8(3.14) = 25.12 units
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6 0
3 years ago
Read 2 more answers
Subtract the cube root of the product of x and 3y from the square of the sum of a and b.
rosijanka [135]

Answer:

a^2 + b^2 + 2ab - (3xy)^1/3

Step-by-step explanation:

Here we want to make a subtraction

Cube root of the product of x and 3y

x * 3y = 3xy

Cube root of this;

(3xy)^1/3

The sum of a and b is (a + b)

Square of this sum;

(a + b)^2 = a^2 + 2ab + b^2

Now, subtract the cube root

we have;

a^2 + b^2 + 2ab - (3xy)^1/3

7 0
2 years ago
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