Mathematics, 17.07.2019 10:50, anonymous654

What value of g makes the equation true ? (x+7)(x-4)=x^2+gx-28

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answered: Geo777

Hello there!

(x + 7)(x - 4) = x² + gx - 28
Let's start by flipping the equation.
x² + gx - 28 = x² + 3x - 28
Then add 28 to both sides
x² + gx - 28 + 28 = x² + 3x - 28 + 28
x² + gx = x² + 3x
Next, add -x² to both sides
x² + gx - x² = x² + 3x - x²
gx = 3x
Remember that we need to solve for g. So to get g here, we need to divide both sides by x
gx/x = 3x/x
g = 3

What value of g makes the equation true?

The number 3 is the value of g that will make the equation true.

I hope this helps. Please let me know if you have questions about my answer.

Thanks!

answered: raytaygirl

its 3

Step-by-step explanation:

answered: Guest

answer

a,b, and d

explanation

a reflection angle is more than

$\pi \: radians$

but less than;

$2 \pi \: radians$

an angle that measures

$\frac{4 \pi}{3} \: radians$

is a reflex angle.(true)

an angle that measures less than

$\frac{\pi}{2}$

is acute.(true)

provided we are considering angles greater or equal to zero.

an acute angle lies in the range.

$0 \leqslant \theta \: < \frac{\pi}{2}$

an obtuse angle is less than 180° but more than 90°

an angle that measures 300° is obtuse (false)

an angle that measures 65° is an acute angle.(true)

answered: Guest

1. sometimes

2. never

3 .08c = 7.50+.05c 250 pages

step-by-step explanation:

1. sometimes

the theoretical probability of rolling a 1 is 1/6. perhaps you got really lucky and never rolled a 1 in those 60 times. your experimental probability is 0. or perhaps you rolled a 1 20 times. your experimental probability is 20/60 is 1/3. it really just depends on how you rolled in that experiment.

2. never

the probability of the event occurring is 1. that is being 100 % sure it will happen. that is the maximum amount of confidence we have.

3. no customer card cost: .08 times number of pages

customer card cost: 7.50 + .05 times number of pages

we want to find when it costs the same amount, so we will set these equal

let c = number of pages

.08c = 7.50+.05c

subtract .05c from each side

.08c-.05c = 7.5+.05c-.05c

.03c=7.5

divide each side by .03

.03c/.03 = 7.5/03