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devlian [24]
3 years ago
11

The second doughnut glazing machine can glare 78 dozen doughnuts in

Mathematics
1 answer:
seropon [69]3 years ago
7 0

Answer:

t = 3.46 hours, or 3 hours 28 minutes

Step-by-step explanation:

78 dozen donuts in 2 hours immediately reduces to 39 dozen/hour.

Donuts produced as a function of time:   D(t), where t is the number of hours the macine runs.

Set D(t) = 135 dozen = (39 dozen/hr)t.

Solving this equation for t, we get:

t = 135/39 hours, or t = 3.46 hours, or 3 hours 28 minutes

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3x + 2y = 6 is an equation in standard form
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Answer:

The value of y when x is 0 is 3

The value of x when y is 0 is 2

Step-by-step explanation:

3x + 2y = 6

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3 years ago
Four less than the product of 2 and a number is the same as negative eightteen. Find the number
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Answer:

12

Step-by-step explanation:

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3 years ago
URGENTE, PERGUNTAS DE MARCAR:
Norma-Jean [14]

Answer:

2a: (c)

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3a: (b)

1a: (d)

4o: (b)

Step-by-step explanation:

2a: the equation of a circle circumference needs to be transformable to the form (x-x_C)^2 + (y - y_C)^2 = r^2 where C(x_C; y_C) is the center and <em>r</em> is the radius. (a) and (d) can’t be it because they contain non-zero factors on <em>xy</em>. (b) isn’t an equation.

5o: just put the given (<em>x</em>, <em>y</em>) into the equations and see if it holds. (2, 3) isn’t on the circumference of (1) because 2^2+3^2-2\cdot 2 -4\cdot 3 + 4 = 1 \neq 0, (3, 1) isn’t on it either because 3^2 + 1^2 - 2\cdot 3 - 4\cdot 1 + 4 = 4 \neq 0.

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1a: see definition from 2a. Here, r^2 = 9.

4o: insert the y from the straight line equation (r) (which can be equivalently transformed to y = x+1) into the circumference equation. If it yields no solution, that’s outside, it there’s exactly one solution, that’s a tangent and if there are two solutions, it’s a secant. x^2+(x+1)^2+2x - 4(x+1) = x^2 + x^2 + 2x + 1  + 2x - 4x + 4 = 2x^2 + 5 = 0 \iff x^2 = 2.5 \iff x \in \{-\sqrt{2.5}, \sqrt{2.5}\} There are two solutions, so it’s a secant.

3 0
3 years ago
A 2-column table with 6 rows. Column 1 is labeled Number of Items Made with entries 1,125, blank, blank, blank, blank, blank. Co
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Answer:

4,500 items are made every 4 hours.

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Step-by-step explanation:

when you multiply 1125 by for it will equal 4500 and when you multiply 1125 by 5 it will equal 5625

3 0
4 years ago
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