What is 4^3 times 4^-5
A. 4^-15
B. 4^-2
C. 4^2
D. 4^8

Answers

Answer 1
Answer: 4^3=4*4*4=64
4^-5
==(1)/(4^(5) )
=(1)/(1024)
==(1)/(1024)*64 = (1)/(16) 
(1)/(16) Decimal: 0.0625 is your answer. 

Related Questions

Solve for x: 4x² - 4x - 48 = 0 Please show steps!
What is 0.000054 in scientific notation
A pile of newspapers in Ms. McGrath’s art class was 17 3/4 inches high. Each consecutive week, for the next 5 weeks, the height of the pile of newspapers increased by 8 7/12 inches. What was the height, in inches, of the pile after 3 weeks?
What is the answer to 1/4+4/5(3/4x-1 1/9)
Find the value of c so that (x - 2) is a factor of the polynomial p(x).p(x) = x5 - 4x3 + cx - 6

If 3x+2y =12 and xy=6, then find the value of 9x^(2) + 4y^(2)

Answers

xy=6
x=6/y......1
3x+2y=12
from1
3*(6/y)+2y=12
{after solving}2y^2-12y+18=0
y^2-6y+9=0      {taking y common}
y^2-3y-3y+9=0
y(y-3)-3(y-3)=0
y=3,3............2
putting 2 in 1
x=2.........3

9x^2+4y^2=
from 2 and 3
9*4+4*9=36+36=72




3x+2y=12\n (3x+2y)^2=144\n 9x^2+12xy+4y^2=144\n\n 9x^2+4y^2=144-12xy\n 9x^2+4y^2=144-12\cdot6\n 9x^2+4y^2=144-72\n \boxed{9x^2+4y^2=72}

934,218 rounded to the nearest 10,000s

Answers

934,218 rounded to the nearest 10,000 is 930,000
93422 that would be our numbee

What is the value of x in x/7 = 35

Answers


Try multiplying each side of the equation by  7 .
Then you must quickly step to one side, as the
answer jumps off the page at you.

x / 7 = 35

Multiply both sides  by 7 :

7*( x / 7 ) = 7 *35

Refine:

x = 245

hope this helps!.

Who drove the fastest? Circle the correct answer. A) 363 miles in 6 hours B) 435 miles in 7 hours C) 500 miles in 8 hours D) 215 miles in 5 hours

Answers

Answer=C

TO find out who was the fastest, we'll have to divide the speed by the time and see which value is greatest.

a) 363mi 6hr 363/3=60.5mi/hr
b) 435mi 7hr 435/7=62.14mi/hr
c) 500mi 8hr 500/8=62.5mi/hr
d) 215mi 5hr 215/5=43mi/hr

C has the greatest value, so the person who drove the fastest was C
c 500 miles in 8 hours

PLEASE HELP FAST!!!The mass of the Rock of Gibraltar is 1.78 ⋅ 10^12 kilograms. The mass of the Antarctic iceberg is 4.55 ⋅ 10^13 kilograms. Approximately how many more
kilograms is the mass of the Antarctic iceberg than the mass of the Rock of Gibraltar? Show your work and write your answer in scientific notation.
Make sure to explain all the steps it took you to get the answer! :)

Answers

Mass of the Antarctic iceberg = 4.55*10^13  
Mass of the rock of Gibraltar  = 1.78*10^12
Excessive mass of Antarctic Iceberg than rock of Gibraltar
4.55*10^13 - 1.78*10^12
If we want to subtract easily both should be in same power of ten
45.5*10^12 - 1.78*10^12
43.72*10^12
4.372*10^13

Is 1/x + 3y = -5 a function ?

Answers

We can say that a relationship between two variables is a function if, for every input, we get one and only one unique output. If we want to talk about y as a function of x in this problem, we want to make sure that every x has only one y associated with it. We can do this by solving our equation for x and seeing whether we can have more than one y that satisfies that equation. Here, I'll do the algebra and briefly explain my steps:

Multiply either side by x to cancel the denominator in 1/x:

x((1)/(x)+3y)=x(-5)\n1+3xy=-5x

Add 5x to either side to collect all of the x terms on one side, and subtract 1 to get all of the constants on one side:

(1+3xy)+5x-1=-5x+5x-1\n3xy+5x=-1

Factor an x out of the left side of the equation:

x(3y+5)=-1

Divide either side by 3y + 5 to get the x by itself:

(x(3y+5))/(3y+5)=(-1)/(3y+5)  \n\nx=(-1)/(3y+5)

For every x we pick, only one y can satisfy the above equation, so we can say that yes, (1)/(x)+3y=-5is a function.