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2 years ago

10

Expand: f(x) = x4 − x3 + x2 + x −

2 answers:

lilavasa [31]2 years ago

8 0

Answer:

7

7

21

30

Step-by-step explanation:

its right i got it on edge 2020

nikitadnepr [17]2 years ago

6 0

Answer:

(x+3)(x+2)

Step-by-step explanation:

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You just found a positive trend line showing a strong relationship between homework scores and test scores for five students. Ex

Scrat [10]

The positive trend among the homework scores and the test scores would reveal that if a student does well in homework, he is likely to do well in exams. This can be explained in the sense that the homework will serve as the practice for the student before finally taking the exam.

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2 years ago

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Let $f(x) = x^{10}-8x^8-8x^3+12x^2-5x-5$. Without using long division (which would be horribly nasty!), find the remainder when

valentina_108 [34]

Solution:

$f(x) = x^{10}-8x^8-8x^3+12x^2-5x-5$

We have to find the remainder when f(x) is divided by $x^2-1.$

x²-1=0

x= $\pm1$

$f(1)=1^{10}-8(1)^8-8(1)^3+12(1)^2-5(1)-5=1-8-8+12-5-5=1-16+12-10=13-26=-13\\\\f(-1)=(-1)^{10}-8(-1)^8-8(-1)^3+12(-1)^2-5(-1)-5=1-8+8+12+5-5=1+12=13$

So, remainder is 13 and -13.

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2 years ago

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Mr. Bond's monthly income is Rs. 2400 and his monthly expenditure on rent is Rs.250. The central angle of the sector representin

aniked [119]

Answer:

$x = 37.5^{\circ}$

Step-by-step explanation:

The central angle of the sector representing rent expenses in the pie chart is found by simple rule of three:

$x = \frac{Rs. 250}{Rs. 2400}\times 360^{\circ}$

$x = 37.5^{\circ}$

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2 years ago

A spinner with 4 colors is spun for a total of 50 trials. Yellow was selected 10 times. What is the experimental probability of

Gnom [1K]

Answer:

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Step-by-step explanation:

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1 year ago

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Kim is reading a book with 380 pages. She read 20 pages each day until she reached Part 2 of the book. Part 2 of the book is 160

d1i1m1o1n [39]

If you divide 380 by 20, you get 19. To check this, multiply 20 x 19 to see 380. Hope this helps :D

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2 years ago

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