All categories

3 years ago

(X+4)(x-4)? Can you help

Mathematics

1 answer:

kherson [118]3 years ago

8 0

Answer: The solutions are x=4 and x=-4

Step-by-step explanation: This is a quadratic equation, so we need to find when the equation equals 0. The values 4 or -4 both make it 0.

(if it is asking for you to factor it out, it is x^2 -16)

You might be interested in

X+y=8 solve by substitution and Y=3x with substitution too

inna [77]

Answer:

x=2

Step-by-step explanation:

Convert the Y to 3x since we know that y=3x.

You would get x+3x=8.

Add the x and 3x to get 4x

Then, you would get 4x=8.

Divide by 4 on both sides to get x=2.

6 0

3 years ago

PLEASE HELP ME RN, IM DOING A QUIZ!

ValentinkaMS [17]

Step-by-step explanation:

you need to show us f(x)=log x graph so we can help

4 0

3 years ago

Peter can buy 5 juice bottles for $10 or 6 juice bottles for $12. How much do you think he would pay for 7 juice bottles?

yuradex [85]

He would pay $14. Each juice bottle costs $2, so 7 bottles cost $14.

6 0

3 years ago

Read 2 more answers

5x=k-14 solve for x (literal equation)

IgorLugansk [536]

Answer:

$\large\boxed{x=\dfrac{k-14}{5}}$

Step-by-step explanation:

$5x=k-14\qquad\text{divide both sides by 5}\\\\\dfrac{\not5x}{\not5}=\dfrac{k-14}{5}\\\\x=\dfrac{k-14}{5}$

8 0

3 years ago

Read 2 more answers

Founder's Park is planning to add a slide. The scaled model gives the reduced measures. A slide has a width of 3.5 inches and he

OLEGan [10]

Answer: The slide will have a height of 6 feet.

Step-by-step explanation:

Given: A slide has a width of 3.5 inches and height of 3 inches.

For required slide , width = 7 feet]

To keep the slide proportional to the model,

$\dfrac{\text{height of the required slide}}{\text{height of the slide }}=\dfrac{\text{width of required slide}}{\text{width of slide}}$

$\Rightarrow\ \dfrac{\text{height of the required slide}}{3}=\dfrac{7}{3.5}\\\\\Rightarrow\ \dfrac{\text{height of the required slide}}{3}=2\\\\\Rightarrow\ \text{height of the required slide}=3\times2 =6\ \text{feet}$

hence, the slide will have a height of 6 feet.

3 0

3 years ago

Read 2 more answers