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
postnew [5]
2 years ago
15

1. is the expression

ss="latex-formula"> equivalent to (8x8)^5
2. is the expression (3^2)^3 equivalent to (3^3)^2

3. is the expression \frac{3^2}{3^3} equivalent to \frac{3^3}{3^2}

explain for all.
Mathematics
2 answers:
Morgarella [4.7K]2 years ago
5 0
No, in because of the parentheses, the 5 has to be distributed to all of the variables in the equation.
Lady_Fox [76]2 years ago
4 0

Answer:

No

Step-by-step explanation:

No, because 8x8^58x85 only takes the 8 that it is up against to the fifth power, but (8x8)^5(8x8)5 takes the whole expression to the fifth power.

You might be interested in
Select the most precise name of quadrilateral MNOP given the coordinates of M, N, O, and P.
Harman [31]

Answer:

Square

Step-by-step explanation:

It has four coordinates which means four vertices which is four sides. Can also be a rectangle or parallelogram.

.

3 0
3 years ago
Read 2 more answers
3x +12 =90 what is x
castortr0y [4]

Answer:

x=26

Step-by-step explanation:

3x +12 =90

subtract 12 from each side

3x=78

divide 3 from each side

x=26

3 0
3 years ago
Read 2 more answers
Men are believed to have a slightly longer average length of short hospital stays than women; 5.2 days versus 4.5 days respectiv
Georgia [21]

Answer:

Since our calculated value is lower than our critical value,z_{calc}=2.02, we have enough evidence to FAIL to reject the null hypothesis at 1% of singificance. So there is not nough evidence to conclude that mean for men it's significantly higher than the mean for female.

Step-by-step explanation:

1) Data given and notation  

\bar X_{1}=5.2 represent the mean for group men  

\bar X_{2}=4.5 represent the mean for group women  

Assuming these values for the remaining data:

\sigma_{1}=1.2 represent the population standard deviation for the sample men

\sigma_{2}=1.5 represent the population standard deviation for the sample women

n_{1}=32 sample size for the group men  

n_{2}=30 sample size for the group women  

z would represent the statistic (variable of interest)

p_v represent the p value  

2) Concepts and formulas to use  

We need to conduct a hypothesis in order to check if the mean for men it's higher than the mean for women, the system of hypothesis would be:  

H0:\mu_{1} \leq \mu_{2}  

H1:\mu_{1} > \mu_{2}  

If we analyze the size for the samples both are higher than 30, and we know the population deviation's, so for this case is better apply a z test to compare means, and the statistic is given by:  

z=\frac{\bar X_{1}-\bar X_{2}}{\sqrt{\frac{\sigma^2_{1}}{n_{1}}+\frac{\sigma^2_{2}}{n_{2}}}} (1)  

z-test: Is used to compare group means. Is one of the most common tests and is used to determine whether the means of two groups are equal to each other.  

3) Calculate the statistic  

We have all in order to replace in formula (1) like this:  

z=\frac{5.2-4.5}{\sqrt{\frac{1.2^2}{32}+\frac{1.5^2}{30}}}=2.02  

4) Find the critical value

In order to find the critical value we need to take in count that we are conducting a right tailed test, so we are looking on the normal standard distribution a value that accumulats 0.01 of the area on the right and 0.99 of the area on the left. We can us excel or a table to find it, for example the code in Excel is:

"=NORM.INV(1-0.01,0,1)", and we got z_{critical}=2.33

5) Statistical decision

Since our calculated value is lower than our critical value,z_{calc}=2.02, we have enough evidence to FAIL to reject the null hypothesis at 1% of significance. So there is not nough evidence to conclude that mean for men it's significantly higher than the mean for female.

6 0
3 years ago
At a fabric store, metallic ribbon costs $16 for 4 ft. White ribbon is priced at 3 ft per dollar. Use rates to show which kind o
Elis [28]

Metallic ribbon: 16$ for 4ft

Dividing both sides by four, we get:

1 feet -- 4 dollars

White ribbon 3$ for 1 feet

1 feet -- 3 dollars

<h2><u><em>Therefore, the Metallic ribbon costs more per feet.</em></u></h2>
4 0
2 years ago
How many tiles of 10cm by a 6cm will be needed to pave a rectangular path of 5m by 3m
kherson [118]

Answer:

2500 tiles

Step-by-step explanation:

convert the path to the same units, one m = 100 cm

path= 500 cm x 300 cm

path area = 150,000 cm^2

each tile = 10x6 = 60 cm^2

150,000/60 = 2500 tiles

6 0
2 years ago
Other questions:
  • What dose 0.022222222 equale in a fration?
    9·1 answer
  • How do you divide fractions with different denominators with whole numbers?
    9·1 answer
  • Enter number as an integer or decimal.
    8·1 answer
  • Isaac is organizing a 5-kilometer road race. The safety committee
    14·1 answer
  • The graph below shows a system of equations:
    10·2 answers
  • Indicate the method you would use to prove the two triangles equal or congruent. If no method applies, enter "none".
    8·1 answer
  • Plz tell the answers in the correct order​
    12·1 answer
  • 22. Tebogo is driving to his mother's house the drives at 50kruh, it takes him
    8·1 answer
  • If I have 2 sticks of butter and need 2. How much do I need???
    6·2 answers
  • Pls dont pwm . will mark brainliest✌
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!