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shepuryov [24]
3 years ago
9

Pierce works at a tutoring center on the weekends.

Mathematics
2 answers:
NeX [460]3 years ago
8 0

Answer:

504 millimeters (or 50.4 cm)

Step-by-step explanation:

   Width of key in student calculator = 14 millimeter (1.4 cm)

   Width of key in demonstration calculator = 2.8 cm

Thus, the demonstration calculator's dimensions are twice that of students' (in cm)

Also given, student calculator height as 252 millimeters (25.2 cm)

Thus demonstration calculator height will be twice of that = 50.4 cm (or 504 millimeters)

Arturiano [62]3 years ago
4 0

Answer:

I got 0.494 meter!

Step-by-step explanation:

First, set up a proportion to find the height of the demonstration calculator in centimeters.

Next, convert 49.4 centimeters to meters.

Therefore, the demonstration calculator is 0.494 meter tall.

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A supply company manufactures copy machines. The unit cost C (the cost in dollars to make each copy machine) depends on the numb
ArbitrLikvidat [17]

Answer:

  $9327

Step-by-step explanation:

Apparently, the cost function is supposed to be ...

  C(x) = 0.4x^2 -112x +17167

This can be rewritten to vertex form as ...

  C(x) = 0.4(x^2 -280) +17167

  C(x) = 0.4(x -140)^2 +17167 -0.4(19600)

  C(x) = 0.4(x -140)^2 +9327

The vertex of the cost function is ...

  (x, C(x)) = (140, 9327)

The minimum unit cost is $9327.

_____

<em>Comment on the question</em>

You found the number of units that result in minimum cost (140 units), but you have to evaluate C(140) to find the minimum unit cost.

8 0
3 years ago
ILL MARK BRAINLIEST !!!
OLEGan [10]

Answer:

BCF is the correct answer

8 0
3 years ago
Read 2 more answers
3^2 ÷ 3^-1 explain the steps
Ksenya-84 [330]
First you would need to Simplify <span>{3}^{2}<span>3<span>​2​​</span></span></span> to <span>99

Next you would need to : </span>Use Negative Power Rule​​ =​9÷​3​​1​​
<span>
then you would need to use a ÷ b/c = a * c/b and get 9*3

And you will lastly get 27</span>
7 0
3 years ago
Write an expression for the model. Find the sum. options: a) 2 + (–3); 1 b) –3 + 2; 5 c) 2 + 3; 5 d) 2 + (–3); –1
Dima020 [189]

Answer:

c) 2 + 3 = 5                   TRUE

d) 2 + (–3) = -1              True

Step-by-step explanation:

When adding integers (positive and negative whole numbers), there are three cases:

  • Positive and positive increases and sum is positive. Ex. 4 + 6 = 10
  • Positive and negative where you subtract and take the sign of the larger number. Ex. 3 + -8 = -5 or -3 + 8 = 5
  • Negative and negative decrease and the sum if negative. Ex. -4 + -6 = -10.

Use these rules to simplify each expression.

a) 2 + (–3) = -1 not 1     FALSE

b) –3 + 2 = -1 not 5      FALSE

c) 2 + 3 = 5                   TRUE

d) 2 + (–3) = -1              True

5 0
4 years ago
Plz plz plz help I don’t get this
Bumek [7]
It looks like it counts up by 2 when adding. so add 4, then add 6, then add 8, then add 10, etc. to find the output you simply add 2 more than the last time you added, to find the input, you subtract 2 more than last time. hope this makes sense haha.
6 0
4 years ago
Read 2 more answers
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