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Nutka1998 [239]
1 year ago
7

20 POINTS!

Mathematics
1 answer:
Norma-Jean [14]1 year ago
5 0

Answer:

C. x^{3} - 4x^{3} - 24x + 21

Step-by-step explanation:

(x - 7)(x^{2} + 3x - 3)

x(x^{2} + 3x - 3) + -7(x^{2} + 3x - 3)

(x^{3} + 3x^{2} - 3x) + (-7x^{2} + -21x + 21)

x^{3} - 4x^{3} - 24x + 21

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What word best fits this definition
postnew [5]

Answer:

EXTRAPOLATION.

Step-by-step explanation:

We have been given  a crossword puzzle in the figure

And we need to fill the missing word in this which has to be a mathematics word because we need to follow the pattern

And all words are mathematical

Hence, The word that can be filled there is EXTRAPOLATION.

Extrapolation means in mathematics is finding value of the variable on basis of the relationship this variable have with other variable.

6 0
3 years ago
On a sunny day, a flag pole and its shadow form the sides of a right triangle. if the hypotenuse is 35 meters long and the shado
Triss [41]
We can use Pythagorean's Theorem in order to find the remaining side length
a^2+b^2=c^2
Let a be the shadow length
Let b be the height of the flagpole
Let c be the hypotenuse 
28^2+b^2=35^2
784+b^2=1225
b^2=1225-784
b^2=441
b=√441
b=21
Therefore the flagpole is 21 meters tall.
Hope this helps!
 
 
3 0
3 years ago
Write a rule for the nth term of the sequence. Then find a20. Assume the first termis a₁. 86, 79, 72, 65…
hodyreva [135]

Answer:

an = a(n-1) - 7

Step-by-step explanation:

the second term is smaller than the first term 7.

a20 = a19 - 7

a19 = a18 - 7

=> a20 = (a18 - 7) - 7

Then you can accumalate until a1

-> a20 = a1 - 19*7 = 86 - 19*7 = -47

5 0
3 years ago
. f(x) = Square root of quantity x plus nine. ; g(x) = 8x - 13 Find f(g(x)). (1 point)
charle [14.2K]

Answer:

2 sqrt(2x-1)

Step-by-step explanation:

f(x) = sqrt( x+9)

g(x) = 8x-13

f(g(x))

place the function g(x) in for x in f(x)

f(g(x)) = sqrt(8x-13+9)

Combine like terms

f(g(x)) = sqrt(8x-4)

Factor out 4

f(g(x)) = sqrt(4*(2x-1)

           2 sqrt(2x-1)

5 0
3 years ago
Read 2 more answers
SOMEONE PLEASE HELP ILL MARK U BRAINLIST
Lemur [1.5K]

Answer:

The value of X is 1

Step-by-step explanation:

Trust me i did this already.

4 0
2 years ago
Read 2 more answers
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