1 year ago

HELP ASAP I WILL GIVE BRAINLIEST!!! Write two inequalities that would have the solution set as graphed below.

1 answer:

5 0

Answer:The answer is x > -1

Step-by-step explanation:

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vazorg [7]

If $x+a$ is a factor of the polynomial, it means that $-a$ is a root of the polynomial.

In fact, if a polynomial $p(x)$ has a root $x_0$ (i.e. $p(x_0)=0$ ), then the polynomial is divisible by $(x-x_0)$

In your case, you know that the polynomial is divisible by $(x+a)=(x-(-a))$ , so $-a$ is a solution.

Let's evaluate $p(-a)$ and set it to zero:

$2(-a)^2+2a(-a)+5(-a)+10 = 0 \iff 2a^2-2a^2-5a+10=0 \iff -5a+10 = 0 \iff a = 2$

We can check the answer: if $a=2$ the polynomial becomes

$2x^2+2(2)x+5x+10 = 2x^2+9x+10$

And we're claiming that $-a=-2$ is a root of this polynomial:

$2(-2)^2+9(-2)+10 = 2\cdot 4 - 18 + 10 = 0$

5 0

2 years ago

Leni [432]

If it can scan 72 photos in 8 minutes, it can scan 72/8 = 9 photos per minute.
So in 23 minutes, it can scan 9x23 = 207 photos

6 0

2 years ago

Valentin [98]

Answer:

75 boys

Step-by-step explanation:

Formula-Girls:Boys=Girls:Boys

5:6=_:90

90×5=450

450÷6=75

4 0

2 years ago

Sergio [31]

Y=1/5x ! :) I hoped this helped ! Privately message me if you need help with anything else !!

3 0

2 years ago

Tatiana [17]

Whats the question? or any specific information

4 0

2 years ago