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Lubov Fominskaja [6]
3 years ago
8

Pleaseeeeeeeee help!!!

Mathematics
1 answer:
JulijaS [17]3 years ago
3 0

Answer:

The first one.

Step-by-step explanation:

The polynomial is made out of three terms so we would consider it a ”trinomial” and since it is a second degree polynomial (based on the highest degree) it would be “quadratic.”

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A company mixes two kinds of cleansers to get a blend they sell for 59 cents a liter. One of the cleansers costs 50 cents per li
Lilit [14]

Answer:

Cleanser that costs 50 cents is 1400 liters, Cleanser that costs 80 cents is 600 liters.

Step-by-step explanation:

We can solve this by using <em>simultaneous equations</em>:

  1. Let us express the question in terms of equations

Let a be cleanser at 50 cents and let b be the cleanser at 80 cents.

Equation 1: 0.5a + 0.8b = 0.59(a+b)

Equation 2: a + b = 2000

From equation 2, a = 2000 - b (Let's call this equation 3)

    2. Substituting equations 2 and 3 in Equation 1:

0.5a + 0.8b = 0.59(a+b)

0.5(2000 - b) + 0.8b = 0.59(2000)

1000 - 0.5b + 0.8b = 1180

0.3b = 180

b = 600

Substitute in equation 3:

a = 2000 - 600

a = 1400

As a note, I formed equation 1 because I know for a fact the cost per liter of a and b. I also know it is sold at 0.59 cents per liter. We are selling 2000 liters in this instance, therefore 0.59(2000) = 1180, which in this case is the selling price.

4 0
3 years ago
Seven more than five times a number is 52. What is the number? <br> HURRY PLEASE!!!!!
avanturin [10]

Answer:

9

Step-by-step explanation:

9x5=45+7=52

3 0
3 years ago
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Otrada [13]

Answer:

(x + 2)² + (y + 9)² = 49

Step-by-step explanation:

Equation:

(x - h)² + (y - k)² = r²

(x - -2)² + (y - -9)² = 7²

(x + 2)² + (y + 9)² = 49

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3 years ago
A new toy store had expenses of $50,000 for designing and building the shelves and counters and $150,000 for the first year’s to
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The answer would be C.
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