MATHEMATICS HIGH SCHOOL

X^{2} -25=0 Please help meeee

Answers

Answer 1

Answer:

Answer:

$x=5,x=-5$

Step-by-step explanation:

$x^2-25=0$

Add 25 to both sides:

$x^2-25+25=0+25$

$x^2=25$

Square root both sides:

$x=√(25),\:x=-√(25)$ (Since a negative number multiplied by itself gives positive, there are two answers.)

$x=5,x=-5$

Answer 2

Answer:

Hey there!

ANSWER: $x=5\nx=25$

EXPLANATION:

$x^2-25=0$

The first step we have to do is to add 25 to both sides of the equation.

$x^2-25+25=0+25\n\text {equals }x^2=25$

In our last and final step, we will have to take the square root.

$x=$ ± $√(25)$

We have two answers.

$x=5(ANSWER)\nx=-5(ANSWER)$

Hope this helps!

$\text {-TestedHyperr}$

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Is (6,3) a solution to this system of equations y=3x - 3 3x - y =3

Answers

Answer:

It is not a solution

Step-by-step explanation:

Plug the point into the equations and check to see if they are true

y=3x - 3

3 = 3(6) -3

3 = 18-3

3 = 15

False

We do not need to check the other equation since this is false

Is 127 rational or irrational

Answers

Answer:

rational

Step-by-step explanation:

Hey there!

ANSWER: rational

EXPLANATION:

127 is a rational number because it can be the quotient of two integers. 127/1=127. An irrational cannot be the quotient of two integers. So therefore, the number 127 is a rational.

Hope this helps :)

$\text{-TestedHyperr}$

How did shi huangdi deal with people who opposed him

Answers

He killed those who opposed him

Madeline usually makes 85% of her shots in basketball. If she attempts 20, how many will she likely make?

Answers

20 x 85% = 17. She should make 17 shots.

Pierres parents ordered some pizzas for a party . 4.5 pizzas were eaten at the party . There were at least 5 1 half of 2 whole pizzas left over . How many pizzas did pierres parents order

Answers

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$5 (1)/(2) = x - 4 (1)/(2)$
$5 (1)/(2) + 4 (1)/(2) = x$
$10 = x$

Using the following data, calculate the mean absolute deviation: 10 7 1 6 7 9 8 10 2 5

What is the mean absolute deviation for these data?
2
2.4
6.5
7