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Dafna11 [192]
2 years ago
10

If something cost $37.80, how many tens would you give?

Mathematics
1 answer:
Sophie [7]2 years ago
5 0

Answer:

4 tens

Step-by-step explanation:

3 tens would get you $30, which is $7.80 short. If you give 4 tens you are giving $40 which is 2.20 more than $37.80, which is okay as you can probably get change and it is the least amount of tens you can give to cover the cost.

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How many pairs of opposite sides are parallel? no pairs 1 pair 2 pairs Submit​
Naddika [18.5K]

Answer:

no pairs

Step-by-step explanation:

no pairs are equal and they all intersect at a point

5 0
2 years ago
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Which inequality does the graph below represent?
Dima020 [189]

Answer:

A. y\le2x^2-8x+3

Step-by-step explanation:

The given parabola has vertex at (2,-5).

The equation of this parabola in vertex form is given by:

y=a(x-h)^2+k, where (h,k)=(2,-5) is the vertex  of the parabola.

We substitute the values to get:

y=a(x-2)^2-5

The graph passes through; (0,3).

3=a(0-2)^2-5

\implies 3+5=4a

\implies 8=4a

\implies a=2

Hence the equation of the parabola is

y=2(x-2)^2-5

We expand this to get:

y=2x^2-8x+8-5

y=2x^2-8x+3

Since the outward region was shaded, the corresponding inequality is

y\le2x^2-8x+3

The correct answer is A

7 0
3 years ago
Please, help worth a lot of points.
sleet_krkn [62]
1. Multiply: (3x+1)(x+2) Answer:3x^2+7x+2
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What is the equation of the line that passes through (-2,-3) and is perpenicular to 2X -3Y= 6
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Best Answer:  <span> 1.)
x^2 + y^2 = 30^2 since the radius is 30 ft
x^2 + y^2 = 900

2.)
Solving for y
y = √(900 - x^2) </span>
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3 years ago
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