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navik [9.2K]
2 years ago
8

Assignme

Mathematics
1 answer:
pishuonlain [190]2 years ago
5 0

Answer:

18

Step-by-step explanation:

5 scores so far + next quiz =6 scores

6 times 16=96

She has to get a quiz score sum of 96 to get an average of 16

18+15+16+14+15=78

96-78=18

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Given the polynomial 6x3 + 4x2 − 6x − 4, what is the value of the constant 'k' in the factored form?
fomenos
1, when you factor you get 6x(x^2-1)+4(x^2-1)=(6x+4)(x-1)(x+1)
7 0
3 years ago
Please help with a, b, and c!!
padilas [110]
(a). 
The product of two binomials is sometimes called FOIL.
It stands for ...

       the product of the First terms                (3j  x  3j)
plus
       the product of the Outside terms          (3j  x  5)
plus
       the product of the Inside terms            (-5  x  3j)
plus
       the product of the Last terms                (-5  x  5)

FOIL works for multiplying ANY two binomials (quantities with 2 terms).

Here's another tool that you can use for this particular problem (a).
It'll also be helpful when you get to part-c .

Notice that the terms are the same in both quantities ... 3j and 5 .
The only difference is they're added in the first one, and subtracted
in the other one.

Whenever you have     

              (the sum of two things) x (the difference of the same things)

the product is going to be

                 (the first thing)²  minus  (the second thing)² .

So in (a), that'll be      (3j)² - (5)²  =  9j² - 25 .

You could find the product with FOIL, or with this easier tool.
______________________________

(b).
This is the square of a binomial ... multiplying it by itself.  So it's
another product of 2 binomials, that both happen to be the same:

                            (4h + 5) x (4h + 5)  .

You can do the product with FOIL, or use another little tool:

The square of a binomial        (4h + 5)²    is ...

         the square of the first term               (4h)²
plus
         the square of the last term                (5)²
plus
         double the product of the terms      2 · (4h · 5)
________________________________

(c).
Use the tool I gave you in part-a . . . twice .

The product of the first 2 binomials is           (g² - 4) .

The product of the last 2 binomials is also    (g² - 4) .

Now you can multiply these with FOIL,
or use the squaring tool I gave you in part-b .

5 0
3 years ago
Read 2 more answers
Savannah practice ballet in 1.67 hours on Monday on Wednesday she practice for 3.25 how much longer did savannah practice on Wed
xz_007 [3.2K]
1.58 hours or about an hour and a half. hope this helps :)
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3 years ago
If a polynomial has four terms, 3x3 + 5x + 6x2 + 10, which factoring method can be considered?
Alexus [3.1K]
Hello,

1) order the terms:

3x^3+6x^2+5x+10

2) method: grouping 2 to 2 the terms:

=(3x^3+6x^2)+(5x+10)
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5 0
3 years ago
Read 2 more answers
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bija089 [108]

Answer:

y intercept is  (0 , 2.5)

x intercept is (3.5 , 0)

Step-by-step explanation:

Khan Academy is fun !!!!!!!!!!

y- intercept is where the line meets the y line    l

x- intercept is where the line meets the x line   ____

The y-intercept is 2.5

The x-intercept is 3.5

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3 years ago
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