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
arlik [135]
3 years ago
7

Which expression is equivalent to (8^2)-4 ??

Mathematics
2 answers:
Veronika [31]3 years ago
6 0

Answer:

C

Step-by-step explanation:

Tamiku [17]3 years ago
3 0

Answer:

Option C \frac{1}{8*8*8*8*8*8*8*8}

Step-by-step explanation:

we have

(8^{2})^{-4}

Remember that

(a)^{-b} = \frac{1}{a^{b}}

(a^{b})^{c}=(a)^{b*c}

therefore

(8^{2})^{-4}=(8)^{-4*2}=(8)^{-8}

(8)^{-8} = \frac{1}{8^{8}}

\frac{1}{8^{8}}=\frac{1}{8*8*8*8*8*8*8*8}

You might be interested in
6 yards in inches<br> Pls help
shepuryov [24]

Answer:

216 inches

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
The producer of a certain bottling equipment claims that the variance of all its filled bottles is .027 or less. A sample of 30
o-na [289]

Answer:

p_v = P(\chi^2_{29}>42.963)=1-0.954=0.0459

b. between .025 and .05

Step-by-step explanation:

Previous concepts and notation

The chi-square test is used to check if the standard deviation of a population is equal to a specified value. We can conduct the test "two-sided test or a one-sided test".

\bar X represent the sample mean

n = 30 sample size

s= 0.2 represent the sample deviation

\sigma_o =\sqrt{0.027}=0.164 the value that we want to test

p_v represent the p value for the test

t represent the statistic

\alpha= significance level

State the null and alternative hypothesis

On this case we want to check if the population standard deviation is less than 0.027, so the system of hypothesis are:

H0: \sigma \leq 0.027

H1: \sigma >0.027

In order to check the hypothesis we need to calculate the statistic given by the following formula:

t=(n-1) [\frac{s}{\sigma_o}]^2

This statistic have a Chi Square distribution distribution with n-1 degrees of freedom.

What is the value of your test statistic?

Now we have everything to replace into the formula for the statistic and we got:

t=(30-1) [\frac{0.2}{0.164}]^2 =42.963

What is the approximate p-value of the test?

The degrees of freedom are given by:

df=n-1= 30-1=29

For this case since we have a right tailed test the p value is given by:

p_v = P(\chi^2_{29}>42.963)=1-0.954=0.0459

And the best option would be:

b. between .025 and .05

6 0
3 years ago
What is 2s+(−4s) 2s+(−4s)?
algol13
It’s -4 because you need to like distribute then add like terms, etc.
3 0
3 years ago
Can someone plz help me I’m being timed!!!!
nikklg [1K]

Answer:

49  and 58

Step-by-step explanation:

pls brainliest

7 0
2 years ago
Read 2 more answers
What does the word "of" mean? <br>A. in addition to<br>B. multiply by<br>C. divided by​
Natali [406]

Answer:

B. multiply by

5 0
3 years ago
Other questions:
  • At the half ime show, a marching band marched in formation. the lead drummer started at a point with coordinates (–2, –5) and mo
    13·1 answer
  • Find all polar coordinates of point P where P = (6, -pi/5)
    14·1 answer
  • Josh works as a tutor for 11$ an hour and a waiter for 15$ an hour. This month he worked 106 hours. What expression solves this?
    9·1 answer
  • The above figure is a special trapezoid. Explain the relationship between the m∠B and m∠C.
    12·1 answer
  • *This question has been deleted by owner.*
    15·2 answers
  • 8
    13·1 answer
  • Sheleah and her family are planning a trip from Los Angeles, California to Melbourne, Australia. While booking her family's plan
    13·2 answers
  • A certain sum of money gives $ 510 as compound interest 12¹/₂ % per annum for 2 years. Find the simple interest on the same sum
    11·1 answer
  • A national publication showed the following distribution of favorite class subjects for high school students.
    6·1 answer
  • Select the correct answer.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!