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
Nata [24]
2 years ago
9

Math makes my brain hurt, so you can help?

Mathematics
2 answers:
Anit [1.1K]2 years ago
8 0

Answer:

3^5 is 3*3*3*3*3

Which is 9*3*3*3 = 27*3*3 = 81*3 =243

3* -3 = -9

243*-9 = -2187

Step-by-step explanation:

Kitty [74]2 years ago
7 0

Answer:

3^5. 3^-1

=3^5+(-1)

=3^5-1

=3^4

=3^2 . 3^2

=9 . 9

=81

You might be interested in
4:3 and 25:45 are equal ratios true or false
kondaur [170]
False.

The scale factor for 3 and 45 is 15.

45 / 3 = 15.

We know that 25 isn't even a whole number for the scale factor, because no number x 4 can equal 25 (whole numbers only).

25 / 3 = 6.33333
8 0
3 years ago
2. A statistics student plans to use a TI-84 Plus calculator on her final exam. From past experience, she estimates that there i
Anarel [89]

Answer:

  1. P(≥1 working) = 0.9936
  2. She raises her odds of completing the exam without failure by a factor of 13.5, from 11.5 : 1 to 155.25 : 1.

Step-by-step explanation:

1. Assuming the failure is in the calculator, not the operator, and the failures are independent, the probability of finishing with at least one working calculator is the complement of the probability that both will fail. That is ...

... P(≥1 working) = 1 - P(both fail) = 1 - P(fail)² = 1 - (1 - 0.92)² = 0.9936

2. The odds in favor of finishing an exam starting with only one calculator are 0.92 : 0.08 = 11.5 : 1.

If two calculators are brought to the exam, the odds in favor of at least one working calculator are 0.9936 : 0.0064 = 155.25 : 1.

This odds ratio is 155.25/11.5 = 13.5 times as good as the odds with only one calculator.

_____

My assessment is that there is significant gain from bringing a backup. (Personally, I might investigate why the probability of failure is so high. I have not had such bad luck with calculators, which makes me wonder if operator error is involved.)

7 0
3 years ago
60 more points i believe
kondor19780726 [428]
<h3>C</h3>

f(x) does have an inverse function since it does pass the horizontal line test

5 0
2 years ago
Identify the construction that the figure represents.
lesantik [10]

Answer: Congruent Angles

Step-by-step explanation:

3 0
3 years ago
you want to earn $100,000 in your company. your initial earnings for the year started at zero, and your artists music earns you
Setler79 [48]

simply divide the 100,000 by the 1.50 to get the outcome of total streams needed. you would need 66,667 streams in total

8 0
3 years ago
Other questions:
  • Evaluate the expression 14.3 minus 2 times 5 to the 2nd power divided by 5
    9·2 answers
  • Elimination using addition and subtraction. <br> -4x+4y=-20<br> -2x+4y=-2
    5·2 answers
  • Hannas school her to the book donation there are 150 students at her school and they Donated a total of b books Hannah do need i
    14·1 answer
  • Which two numbers are solutions of 2n - 15≤ = -3 <br><br> ×║thank you║×
    11·2 answers
  • Use the distance formula in order to classify the to
    6·1 answer
  • Please help!
    11·1 answer
  • Each situation described bellow requires inference about a mean or means. Identify each as involving (1) a single sample, (2) ma
    10·1 answer
  • Please I am on a timer
    8·1 answer
  • Find the length of the third side. If necessary, write in simplest radical form. 9 6 Answer: Submit Answer​
    15·1 answer
  • Which expression is equivalent to -5(-6h +8 - 12)?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!