crysstalrose1512
crysstalrose1512 crysstalrose1512
  • 24-09-2021
  • Mathematics
contestada

1) Is y=-3 a solution to the equation-3x^2=-27

2) is (-4,10) a solution to the equation 10-5x=y

Brainliest to the person who explains their answers

Respuesta :

zmcever
zmcever zmcever
  • 24-09-2021

Answer:

1)Yes

2)No

Step-by-step explanation:

1) 3x^2 = -27

3 (-3)^2 = -27

Once you substitute your value in for x, you can follow the rule PEMDAS to solve the equation.

3 (-9) = -27

-27 =-27

2) 10 - 5x = y

In an ordered pair, the first number is x and the second number is y.

10 - 5 (-4) = 10

10 - 20 = 10

-10 = 10

-10 ≠ 10

PEMDAS: A rule that states solving an equation by the order of operations:

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

Answer Link

Otras preguntas

this is really confusing please help
Which expression can be used to an identity with [(sin)(sec)]^2 + 1?
The triangles in the diagram below are similar. Find the distance across Clarence Lake. ( Figure may not be drawn to scale)​
Today’s Human Resources management historically known as personal management deals with formal system for the management of people within the organization. Dis
In which part of the graph is the distance from home decreasing?
Describe the shape of the distribution for the following and justify your answer: a. The distance people travel to work on a typical day - The horizontal axis i
Can somebody please answer asap for brainlist and correct answer?
If REX ~ ROB, find the value of a.​
this is really confusing please help
[tex]\sf\large\green{\underbrace{\red{Befikra*}}}:[/tex].The first term of an arithmetic sequence is 1 and the sum of the first four terms is 100. Find the firs