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
mel-nik [20]
3 years ago
5

Which expression is equivalent to 4-2/2^-3 a.-16 b.-8 c.8 d.16

Mathematics
1 answer:
algol133 years ago
6 0

Answer:

First, solve the top and bottom independently:

Top portion - 4-2 = 2

Bottom portion - A number to the negative power (2^-3) is equal to one over the positive power (1/2^3) which also equals 1/8

Combine both portions now: 2/(1/8)

To remove the fraction at the bottom portion, you can multiple both the top portion and bottom portions by 8 which resolves the bottom portion to be 1/8 * 8 = 1 AND the top portion to be 2 * 8 = 16.

Write the resulting equation with both top and bottom portions again and solve: 16/1 = 16

Step-by-step explanation:


You might be interested in
Jurado picked 40 bags of apples on Monday and sold them at his fruit stand for $3:45 each. The following week he picked and sold
tekilochka [14]
I'm pretty sure that would be $89.70!
4 0
3 years ago
in football game the quarterback was tackle behind the line of the scrimmage and lost 7 yards represent the loss of 7 yards as a
umka21 [38]
Seven I hope the answer helped!!
7 0
3 years ago
What is x - 5y = 13 and 9y - x = -17 using elimination method
Genrish500 [490]
X +(-5y)=  13
-x+  9y =(-17)
0+<u>4y</u>=<u>-4</u>
    4    4
y=1
x+-5(1)=13
x-5=13
 +5 <u>+5
</u>  x=18
  y=1
6 0
3 years ago
On the interval [x,7] , at which x-value is the average rate of change 56?<br> ????????
Ainat [17]

Answer:

4

Step-by-step explanation:

i got it right on the test

3 0
3 years ago
Read 2 more answers
Suppose a set of test scores is appproximately bell-shaped, with a mean of 68 and a range of 54. (a) The minimum test score is a
liberstina [14]

Answer:

a.) Minimum test score = 41

    Maximum test score = 95

b.)An approximate value of the standard deviation is 9.

Step-by-step explanation:

The given set of test scores is approximately bell shaped.

The mean of the test scores, \mu = 68

The range of the data set = 54.

a.) i.) Minimum test score  = \mu - \frac{range}{2}  = 68 - \frac{54}{2}  = 68 - 27 = 41

   ii.) The maximum test score = \mu + \frac{range}{2}  = 68 + \frac{54}{2}  = 68 + 27 = 95

b.) From the 68-95-99.7 rule, also known as the Empirical rule, tell us that an approximation of the range is 3 standard deviations either way from the mean. So from this rule we can say that the minimum can also be found from \mu - 3\sigma and the maximum can also be approximated as \mu + 3\sigma.

From the above we can say that the range can be written as

   3\sigma - (-3\sigma) = range

∴   6\sigma  = range

∴    \sigma  = \frac{range }{6}  = \frac{54}{6}  = 9

Therefore an approximate value of the standard deviation is 9.

7 0
3 years ago
Other questions:
  • Fred's frog jumped 7 times as far as Al's frog. The two frogs jumped a total of 56 inches. How far did Fred's frog jump?
    8·1 answer
  • Plz guys help me I don't no how to do math plz
    6·1 answer
  • Which ordered pair is a solution of the equation -3x - y = 6
    12·1 answer
  • Say that Australia has a working population of 11,565,470 people, and that the average salary is $26,450 annually. How much tax
    6·2 answers
  • A. True
    7·2 answers
  • Alternate interior angles etymology
    10·2 answers
  • From the diagram, ABCD is a rectangle. The equation of line BC is given by 3y+x=25. Given that the area of rectangle ABCD is 80
    6·1 answer
  • 5. -5k - 16=39<br> 7.-14 = -11+ n<br> -<br> 5
    5·1 answer
  • Help ASAP!! Will mark brainlest!
    12·1 answer
  • Subtract -10 from 100​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!