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Tamiku [17]
3 years ago
5

Dan is thinking of a number. The quotient of thisnumber and 1.8 is31.5. Find Dan's number.

Mathematics
1 answer:
forsale [732]3 years ago
6 0
56.7

31.5 x 1.8 = 56.7, and 56.7 / 1.8 = 31.5 
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I need #2, #3, #4, #7, and #8.<br> but do as much as you can pls thanks !
kifflom [539]

Answer:

See explanation.

Step-by-step explanation:

2) Your written answer is correct, y = x +4

3) Slope of perpendicular line: 5/2

y=mx+b

4 = (5/2)(4) + b

4 = 10 + b

b = -6

So, y=(5/2)x - 6

4) Slope of perpendicular line: 1

y=mx+b

5 = (1)(4) + b

5 = 4 + b

b = 1

So, y = x + 1

7) Slope of perpendicular line: 3/4

y=mx+b

4 = (3/4)(4) + b

4 = 3 + b

b = 1

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y=mx+b

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4 0
3 years ago
1. What number will make this expression a perfect square trinomial? Show your work. x2 - 6x +​
exis [7]

Answer:

.......

Step-by-step explanation:

3 0
3 years ago
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Let f ( x ) = 10 x + 14 f − 1 ( x ) =
Agata [3.3K]

Answer:

  f^-1(x) = (x -14)/10

Step-by-step explanation:

You can find the inverse function by solving for y:

  x = f(y)

Here, that is ...

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6 0
3 years ago
Suppose that the cost of producing x tablets is defined by c(x)= 200 + 10x + 0.2x squared* where x represents the number if tabl
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we are given

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so, vertical box is C(x)

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part-B:

we have to find average on [a,b]

we can use formula

\frac{C(b)-C(a)}{b-a}

we are given point as

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=\frac{480-395}{20-15}

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we are given point as

b: (20, 480)

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