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3 years ago

Can some one please help me on C. just C

Mathematics

1 answer:

RideAnS [48]3 years ago

7 0

It is since it is a straight line when plotted in a graph
It is a quick response

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Complete the following sentence:

gayaneshka [121]

You can verify the zeros of the function y=x2+6x-7 by using a graph and finding where the graph C. C. crosses the x-axis . Finding the zeros mean equating the equation to 0 or y =0. When y =0, this is equal to x-axis. C. is the answer to the problem given above.

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4 years ago

What is the reciprocal of 5 2/3 PLS HELP

LuckyWell [14K]

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3 years ago

LCD of 1/15 and 9/10

soldi70 [24.7K]

The LCD of the 2 fractions is 30 by multiplying the first fraction by 2 and the second fraction by 3 for example:

1/15 x 2/2 = 2/30

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3 years ago

What number is 30% of 20? for 10 points and brainlist

vazorg [7]

Answer:

Step-by-step explanation:

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3 years ago

Read 2 more answers

If $x^5 - x^4 x^3 - px^2 qx 4$ is divisible by $(x 2)(x - 1),$ find the ordered pair $(p,q).$

mojhsa [17]

Answer: The required ordered pair (p, q) is (-7, -12).

Step-by-step explanation: Given that (x+2)(x-1) divides the following polynomial f(x) :

$f(x)=x^5-x^4+x^3-px^2+qx+4.$

We are to find the ordered pair (p,q).

We have the following theorem :

Factor theorem : If (x-a) divides a polynomial h(x), then h(a) = 0.

According to the given information, we can say that (x+2) divides f(x). So, we get

$f(-2)=0\\\\\Rightarrow (-2)^5-(-2)^4+(-2)^3-p(-2)^2+q(-2)+4=0\\\\\Rightarrow -32-16-8-4p-2q+4=0\\\\\Rightarrow 2p+q=-26~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

Also, (x-1) is a factor of f(x). So,

$f(1)=0\\\\\Rightarrow (1)^5-(1)^4+(1)^3-p(1)^2+q(1)+4=0\\\\\Rightarrow 1-1+1-p+q+4=0\\\\\Rightarrow p-q=5~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(ii)$

Adding equations (i) and (ii), we get

$3p=-21\\\\\Rightarrow p=-7.$

From equation (ii), we get

$-7-q=5\\\\\Rightarrow q=-12.$

Thus, the required ordered pair (p, q) is (-7, -12).

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4 years ago