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8090 [49]
3 years ago
14

I need the answer fast pls

Mathematics
1 answer:
Alja [10]3 years ago
8 0

amount of money earned last week

arm span

amount of minutes exercised daily

height in inches

hours slept per night

travel time in minutes to school

minutes to cook pasta

school zip id

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Hlo sir i am laavanya how are you​
Monica [59]

Answer:

thanks for free point Mark me as brain list

6 0
3 years ago
Read 2 more answers
Write the polynomial in factored form as a product of linear factors f(r)=r^3-9r^2+17r-9
adelina 88 [10]

Answer:

  f(r) = (x -1)(x -4+√7)(x -4-√7)

Step-by-step explanation:

The signs of the terms are + - + -. There are 3 changes in sign, so Descartes' rule of signs tells you there are 3 or 1 positive real roots.

The rational roots, if any, will be factors of 9, the constant term. The sum of coefficients is 1 -9 +17 -9 = 0, so you know that r=1 is one solution to f(r) = 0. That means (r -1) is a factor of the function.

Using polynomial long division, synthetic division (2nd attachment), or other means, you can find the remaining quadratic factor to be r^2 -8r +9. The roots of this can be found by various means, including completing the square:

  r^2 -8r +9 = (r^2 -8r +16) +9 -16 = (r -4)^2 -7

This is zero when ...

  (r -4)^2 = 7

  r -4 = ±√7

  r = 4±√7

Now, we know the zeros are {1, 4+√7, 4-√7), so we can write the linear factorization as ...

  f(r) = (r -1)(r -4 -√7)(r -4 +√7)

_____

<em>Comment on the graph</em>

I like to find the roots of higher-degree polynomials using a graphing calculator. The red curve is the cubic. Its only rational root is r=1. By dividing the function by the known factor, we have a quadratic. The graphing calculator shows its vertex, so we know immediately what the vertex form of the quadratic factor is. The linear factors are easily found from that, as we show above. (This is the "other means" we used to find the quadratic roots.)

7 0
3 years ago
Trapezoid RSTU with vertices R(-5, 15), S(0, 10), T(-5, 5) and U(-15, 5): scale factor = 1/5, centered at the origin
Vlada [557]

Answer:

34

Step-by-step explanation:

6 0
2 years ago
Given that cosθ=817 and sinθ=−1517 . What is the value of tanθ?
Alchen [17]

Answer:

tan∅ = -1517/817

Step-by-step explanation:

tan∅ = sin∅/cos∅

3 0
3 years ago
How many 3/4 cup servings are in 7/8 cup of pudding
inysia [295]

Answer:

Step-by-step explanation:

7/8 ÷ 3/4 is the same as saying 7/8 • 4/3

answer: 1.2 or 1 1/5 or 6/5

8 0
3 years ago
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