Shadrach12
Shadrach12 Shadrach12
  • 23-07-2021
  • Mathematics
contestada

Use the expression, X^2-7
What is the value of the expression above when n=5

Respuesta :

mathstudent55
mathstudent55 mathstudent55
  • 23-07-2021

Answer:

18

Step-by-step explanation:

X^2 - 7 =

Since we need to evaluate the expression when X = 5, we replace X with 5.

= 5^2 - 7

Now, according to the correct order of operations, we need to do the exponent first. 5^2 = 5 * 5 = 25

= 25 - 7

Finally, we subtract.

= 18

Answer: 18

Answer Link

Otras preguntas

Factor by grouping: 2x + 16 + xy + 8y a (x + 8)(2 + y) b (y + 8)(2x + y) c (y + 8)(x + 2) d (x+8y)(2+y)
When the atoms of two substances joined to make a new substance the process is called?
How much water falls back as rain
In a process called radiometric dating, scientists measure the __________ of an isotope to determine the age of the earth
A farmer who is 72 inches tall is standing beside a silo that has a height of 140 feet. The length of the silo shadow is 31.5 feet. What is the length of a far
Etruscan painting was highly developed and used pigments created from stone and minerals. True False
Which of the following ratios is equivalent to 12/20 3/10 5:3 120 to 200 60/80
Which length of wood is the shortest 1/4, 2/5, 3/10, or 1/4?
What are two effects of regular participation in sports on your overall health?
easy way to learn the layers of earth