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castortr0y [4]
3 years ago
12

Can someone please help me i don’t really understand these questions

Mathematics
1 answer:
Gemiola [76]3 years ago
8 0

7) 9

8) 4

9) 20

Trust me

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If the solutions to a polynomial equation are -5, 0, and 1, which of the following could be the expanded form of the polynomial
AVprozaik [17]

Answer:

The polynomial would be f(x) = x^3 + 4x^2 - 5x

Step-by-step explanation:

In order to find this, start with the equations that x is equal to each of the solutions. Then solve each of those expressions for 0.

-5 = x

0 = x + 5

1 = x

0 = x - 1

0 = x

Now put each of the terms that you have in parenthesis and multiply them all together.

f(x) = (x)(x + 5)(x - 1)

f(x) = (x)(x^2 + 4x - 5)

f(x) = x^3 + 4x^2 - 5x

8 0
3 years ago
How many 4 card hands that contain exactly 3 aces and 1 queen can be chosen from a 52 card deck?
sesenic [268]
There are 16 possible hands.

Choosing 3 aces from 4 possible is expressed by:
_4C_3=\frac{4!}{3!1!} = 4

Choosing 1 queen from 4 possible is expressed by:
_4C_1=\frac{4!}{1!3!}=4

This gives us 4*4 = 16 possible hands.
7 0
3 years ago
Solve for x can anyone help me ?
Zepler [3.9K]

Answer:

E

Step-by-step explanation:

-18x + 21 > -15

-18x > -36

x < 2

20x - 13》17

20x》40

x》2

Or is union

Union of x < 2 and x》2 is all real numbers

7 0
3 years ago
Could someone answer this? im very confused
Kay [80]

Answer:EDFGHNMK,RTFYGBHNJMK,L.TFVYGBUHNIJMK,L.DFGHUJIKOLP;['

JJKOLP;['

cexy acc w$t p*&thy

Step-by-step explanation:

4 0
3 years ago
Simplify sin(2arcsin(5/13))
Gennadij [26K]
We are asked to simplify the expression <span>sin (2 arcsin (5/13)). The technique is to simplify first the inner terms inside the parenthesis. arc sin of 5/13 under the radians mode in the calculator is equal to 0.3948. This is multiplied by 2 equal to 0.7896. sin of 0.7896 is equal to 120/169. </span>
8 0
3 years ago
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