1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
joja [24]
4 years ago
7

Find the value. X3-4 when x=3 PLEASE HELP!!! ASAP!!!

Mathematics
2 answers:
DENIUS [597]4 years ago
7 0

Answer:

23

Step-by-step explanation:

Raise 3 to the power of 3

27 - 4

Subtract 4 from 27

23

Hope this was correct

andrew11 [14]4 years ago
4 0

<u>Answer:</u>

<u><em>23</em></u>

<u />

<u>Explanation:</u>

<u />

step 1 - rewrite the expression with the value of x

x^3 - 4

(3)^3 - 4

step 2 - solve the exponent

(3)^3 - 4

27 - 4

step 3 - subtract

27 - 4

23

therefore, the value of the expression is <u><em>23.</em></u>

You might be interested in
Which expression is equivalent to <img src="https://tex.z-dn.net/?f=-4x%5E%7B-5%7D%20x%5E%7B0%7D" id="TexFormula1" title="-4x^{-
Ber [7]

The expression that is equivalent to the given expression is -4x^-5

<h3>How to determine which expression is equivalent to the given expression?</h3>

The expression is given as:

-4x^{-5} x^{0}

Rewrite properly as

-4x^-5x^0

Express as products

-4x^-5 * x^0

The value of x^0 is 1

So, we have:

-4x^-5 * 1

Evaluate the product

-4x^-5

Hence, the expression that is equivalent to the given expression is -4x^-5

Read more about equivalent expressions at:

brainly.com/question/2972832

#SPJ1

7 0
2 years ago
Please help I'm really stuck
Anit [1.1K]
First factor the numerator
b^2-6b+8/b-4  * b+8/b-2

u will get
(b-2)(b-4)/(b-4)*(b-2)*b+8
those will cancel out each other will left only
b+8<span />
7 0
3 years ago
How many real roots does the function
icang [17]

Answer:

Option C is correct i.e. 2.

Step-by-step explanation:

Given the function is f(x) = x² +8x -2.

We can compare it with general quadratic expression i.e. ax² +bx +c.

Then a = 1, b = 8, c = -2.

We can find the number of real root by finding discriminant of the equation ax² +bx +c =0 as follows:-

D = b² -4ac

D = 8² -4*1*-2

D = 64 +8

D = 72.

When D is a positive value, then we have two real roots of the equation.

Hence, option C is correct i.e. 2.

6 0
3 years ago
You estimate that there are 75 marbles in a jar. The actual amount is 82 marbles. Find the percent error
Vikentia [17]

Answer:

Percent Error:: 12/36 = 33 1/3 %

Step-by-step explanation:

5 0
3 years ago
Georgie joins a gym. she pays $25 to sign-up and then $15 each month.
Len [333]
In the y=mx+b format or a linear equation, this would be y=15x+25
8 0
3 years ago
Other questions:
  • Malcolm and Ravi raced each other.
    15·1 answer
  • Erica went to the store to buy a loaf of bread and get a gallon of milk. Milk is $2.99 a gallon, and her mom gave her $5 to spen
    11·2 answers
  • Abcd is a quadrilateral. three of the angles of abcd measure 100°, 87°, and 106°, respectively. find the measure of the missing
    12·1 answer
  • Given PQR ~ JKL solve for X
    7·2 answers
  • What is the slope of a line perpendicular to the line whose equation is x+y=2
    11·1 answer
  • if a person invests $220 at 7% annual interest, find the approximate value of the investment at the end of 10 years
    5·1 answer
  • NEED AN ANSWER ASAP
    6·1 answer
  • Please help and give brainliest answer
    8·1 answer
  • The Sales Tax rate is 6%. If Sasha buys a refrigerator priced at $674, how much tax will she pay?
    12·1 answer
  • What is the value of x
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!