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
mina [271]
3 years ago
15

Which of the following is equivalent to the expression below?

Mathematics
1 answer:
PilotLPTM [1.2K]3 years ago
8 0

Answer:

C 9i

D -9i

Step-by-step explanation:

sqrt(-81)

sqrt(81) sqrt(-1)

we know that sqrt(-1) = i

±9i

You might be interested in
Write the equation of the linear relationship in slope-intercept form, using decimals as needed.
Mkey [24]

Answer:

f(x)= -0.4x+107

Step-by-step explanation:

5 0
3 years ago
a father's age is three less than two times the son's age. the difference in their ages is 30 years. find the son's age.
wel
The son's age is 31 and the father's age is 61.
2s-3=f
f-s=30
f=61
s=31
5 0
4 years ago
Read 2 more answers
Natalie made two statues of a giraffe the first measures 16 feet tall and the second measures 6 inches tall what is the differen
laiz [17]
First you would have to convert , so 12 inches = 1 foot . So do 12 X 16= 192inches, then subtract 192-6=186inches should be the difference IN INCHES. If you need it in feet divide 186 by 12 which should give you 15.5feet
8 0
3 years ago
Suppose you wish to test if a number cube (die) is loaded or not. If the die is not loaded, the theoretical probabilities for ea
Sonja [21]

Answer:

Goodness of fit

Step-by-step explanation:

Given

The theoretical probabilities

<em>See comment for complete question</em>

<em></em>

Required

The type of test to be use

From the question, we understand that you are to test if the die is loaded or not using the given theoretical probabilities.

This test can be carried out using goodness of fit test because the goodness of fit is basically used to check the possibility of getting the outcome variable from a distribution. In this case, the outcome of the variables are the given theoretical probabilities.

In a nutshell, the goodness fit of test determines if the given data (in this case, the theoretical probabilities) is a reflection of what to expect in the original population.

3 0
3 years ago
Two thirds of a number is no more than -10
Aliun [14]
Let x be the number in the problem. When it states that x is "no more than -10", it means than it is less than or equal to -10. So, we have

\frac{2}{3}x≤-10

In order to cancel out the \frac{2}{3} on the left and isolate x, we multiply both sides by \frac{3}{2} (since \frac{3}{2}·\frac{2}{3}=1). Thus, we have

x≤-10·\frac{3}{2}=-15

Therefore, x≤-15

7 0
3 years ago
Other questions:
  • What is the midpoint of a line segment with the endpoints (-4,-3) and (7,-5)
    7·1 answer
  • Fill in the table to find the amount of money Mary earns for different amounts of time she works. Then, write the equation that
    8·1 answer
  • Need help filling in the blanks.. comparing depreciation methods.
    12·1 answer
  • Half if a dozen eggs is 6 eggs.How is 1/2 expressed as a decimal?
    13·1 answer
  • Compare 1/2 with 3/4 using ( &lt;,&gt;,=)
    8·2 answers
  • What is 30 over 12 written as a mixed number
    15·1 answer
  • Which statement proves that polygon ABCD is not a rectangle
    9·1 answer
  • The first three terms of an arithmetic sequence are given. Find an expression for tn in terms of n, and write the tenth term for
    12·2 answers
  • The sum of two numbers is 36. Four times the smaller is one less than the larger. Find the numbers
    8·1 answer
  • One particular drug is in many non-prescription medications, making it easy to get more than the 4000 milligrams per
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!