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
NeX [460]
3 years ago
7

A student claims that 8^3 x 8^-5 is greater than 1. Explain whether the student is correct or not.

Mathematics
1 answer:
nlexa [21]3 years ago
7 0
Remember:
a^m * a^n=a^(m+n)
a^-m=1/a^m


8³ x 8⁻⁵=8³⁻⁵=8⁻²=1/8²=1/64<1

Answer: the student is not correct, because 1/64<1, and 8³ x 8⁻⁵=1/64.
You might be interested in
How many times is the volume of the large sphere than the<br> small sphere?<br> 2<br> 4<br> 6<br> 8
Hoochie [10]

Answer:

8 times larger

Step-by-step explanation:

The radius of the large sphere is double the radius of the small sphere.

7 0
3 years ago
Read 2 more answers
If the lengths of the legs of a right angle are 5 and 7, what is the length of the hypotenuse?
Natalija [7]

Answer:

7^2 + 5^2 = 49 + 25 = 74

hypotenuse = square root of 74

Answer is B

Step-by-step explanation:

6 0
2 years ago
Combine like terms<br> 30x + 6y - 24x - y =
Irina18 [472]

Answer:

6x+5y

Step-by-step explanation:

Combining like terms (x and y)

we get

30x-24x=6x

6y-y=5y

=> 6x+5y

8 0
3 years ago
Read 2 more answers
How do you simplify this and write as a polynomial in standar form? (x-9)3x-7)+(3x^2-5x+2)​
nasty-shy [4]

Answer:

Standard form of (x-9)(3x-7) + (3x^{2} - 5x+2) =6x^{2}  - 39x + 65

Step-by-step explanation:

Here, the given expression is (x-9)(3x-7) + (3x^{2} - 5x+2)

Now, simplifying the above expression in parts, we get

(x-9)(3x-7) = 3x^{2}  - 7x -27x + 63 = 3x^{2}  - 34x + 63

hence, combining both parts:

(x-9)(3x-7) + (3x^{2} - 5x+2)=(3x^{2}   -34x +63) + (3x^{2} - 5x+2)

= 6x^{2}  - 39x + 65

The above expression is of the STANDARD FORM: ax^{2}  +bx + c

Hence, the standard form of (x-9)(3x-7) + (3x^{2} - 5x+2) =6x^{2}  - 39x + 65

6 0
3 years ago
At what values of x does f(x) = x^3 - 2x^2 -4x+1 satisfy the mean value theorwm on [0,1]
denis-greek [22]

Answer:

x=1/3

Step-by-step explanation:

A function f is given as

f(x) = x^3-2x^2-4x+1 in the interval  [0,1]

This function f being an algebraic polynomial is continuous in the interval [0,1] and also f is differntiable in the open interval (0,1)

Hence mean value theorem applies for f in the given interval

f(1) = 1-2-4+1 = -4\\f(0) = 1

The value

\frac{f(1)-f(0)}{1-0} =\frac{-4-1}{1} =-5

Find derivative for f

f'(x) = 3x^2-4x-4

Equate this to -5 to check mean value theorem

3x^2-4x-4=-5\\3x^2-4x+1=0\\\\(x-1)(3x-1) =0\\x= 1/3 : x = 1

We find that 1/3 lies inside the interval (0,1)

4 0
3 years ago
Other questions:
  • Nuu.
    12·1 answer
  • If they immediately ran in opposite directions with speeds of 180 feet per minute and 120 feet per minute respectively, how many
    13·2 answers
  • Geoffery went on a trip across South America. He took 1,750 US dollars (USD) with him. In Chile, he traded his money for Chilean
    10·2 answers
  • What is a function 8th grade
    8·1 answer
  • Which lists all the integer solutions of the equation |x| = 4?
    14·2 answers
  • Will sum help me with this last one 17
    14·1 answer
  • Need help ASAP ! i’ll mark brainly !
    5·1 answer
  • A8=21 a10=27 find nth term arthemetic sequence
    10·1 answer
  • Write the following as an inequality.
    10·2 answers
  • PLEASE HELP ME 15 POINT AVAILABLE
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!