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tamaranim1 [39]
3 years ago
10

7r - 15/s When r = 3 and s = 5

Mathematics
1 answer:
Ivenika [448]3 years ago
4 0

Answer:

18

Step-by-step explanation:

7r - 15/s

First step: Substitute

7(3) - 15/5

21 - 3

21 - 3 = 18

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rodikova [14]

Answer:

A radius is a line segment with one endpoint at the center of the circle and the ... is called the midpoint, and arc PQ ≅ arc PR if and only if PQ ≅ PR.

Step-by-step explanation:

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Find all the zeros of f(x) help please
Licemer1 [7]

Since f(6)=0, by the remainder theorem this means that <em>x</em> - 6 divides <em>f(x)</em> exactly. This means there are constants <em>a</em>, <em>b</em>, and <em>c</em> such that

\dfrac{f(x)}{x-6} = ax^2 + bx + c

Multiplying both sides by <em>x</em> - 6 gives

f(x) = (x-6)(ax^2+bx+c) \\\\ 2x^3-19x^2+45x-18 = ax^3 + (b-6a)x^2 + (c-6b)x - 6c

Then <em>a</em>, <em>b</em>, <em>c</em> satisfy

\begin{cases}a=2 \\ b-6a=-19 \\ c-6b=45 \\ -6c=-18\end{cases}

and solving this system gives <em>a</em> = 2, <em>b</em> = -7, and <em>c</em> = 3.

So, we have

2x^3-19x^2+45x-18 = (x - 6) (2x^2 - 7x + 3)

The quadratic term can be factored as

2x^2 - 7x + 3 = (2x - 1)(x - 3)

which leaves us with

f(x) = (x-6)(2x-1)(x-3)

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4 0
3 years ago
What is x in 2x-3=15+11x
andrew-mc [135]
X = -2 is the answer
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3 years ago
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Tresset [83]

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Step-by-step explanation:

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(21 / 45) * 100

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That is 46.7% of surveyed sample intend to go on 3 vacations in the next year.

Therefore using these to make inference about the number of total client who will go on 3 vacations in the next year:

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6 0
4 years ago
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Svetach [21]

Answer:

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You're Welcome

7 0
3 years ago
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