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Sunny_sXe [5.5K]
3 years ago
7

Jocelyn got 19 correct answers out of 25 questions on her last test . what percent of the questions did she answer correctly

Mathematics
1 answer:
aleksandrvk [35]3 years ago
4 0
19 ÷ 25= 0.76

0.76 ⇒ 76%
She got a C on the test.

Hoped this helped.

~Bob Ross®
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Answer:

f(x) =  {x}^{3}  - 9 {x}^{2}  + 27x - 27

Step-by-step explanation:

We want to create a third degree polynomial function with one zero at three.

In other words, we want to find a polynomial function with roots x=3 , multiplicity, 3.

Since x=3 is a solution, x-3 is the only factor that repeats thrice.

f(x) =  {(x - 3)}^{3}

We expand to get:

f(x) =  x( {x}^{2}  - 6x  + 9) - 3( {x}^{2}  - 6x + 9)

f(x) =  {x}^{3}  - 6 {x}^{2}  + 9x- 3 {x}^{2}   + 18x  - 27

This simplifies to:

f(x) =  {x}^{3}  - 9 {x}^{2}  + 27x - 27

See attachment for graph.

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