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AlexFokin [52]
3 years ago
11

Solve the equation using the inverse operation .. \

Mathematics
1 answer:
fredd [130]3 years ago
5 0

Answer:

15

Step-by-step explanation:

28 - 13 = 15

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How to find intersections of two overlapping circles with complicated equations?
Lorico [155]
Option 1: Graph both equations to see where they intersect.  If they do not intersect at lattice points, then use the substitution method.

Option 2: Use substitution method of system of equations
Equation of a circle: (x-h)² + (y-k)² = r²
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y - k = +/- √(r² - (x-h)²)
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5 0
3 years ago
The cheer squad is ordering small towels to throw into the stands at the next pep rally. The printing company has quoted the fol
Ierofanga [76]

The function D represents the cost is  $175  for of x towels.

For the first 20 towels, the equation is simply 5x.

The 5 is the cost per towel ($5) times the number of towels sold up to and including 20 towels.

<h3>What is the meaning of maximum cost of 20 towels?</h3>

Replace x by 20 in given expression  we get the maximum cost

So the maximum cost of those 20 towels is $5 (20)=$100.

Looking at towels 21 and greater, the price drops to $3 each. Putting this in a formula,

Therefore we get,

3(x-20)+100

Which is $3 for the cost per towel, (x-20) since it starts with towel number 21, and +100 for the cost of the first 20 towels.

Let's try it for 45 towels using the formula

3 (45-20)+ 100

=3(25) + 100

=75+ 100

= $175

The function D represents the cost is  $175  for of x towels.

To learn more about the cost visit:

brainly.com/question/21290274

5 0
2 years ago
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