Please explain why if you no the answer

Please Explain Why If You No The Answer

Answers

Answer 1

Answer:

No, she isn't

Step-by-step explanation:

(-2)² is basically -2 x -2, which we know is 4.

-2² is slightly different. In this case, you don't consider it as the square of -2, but you do the square ignoring the negative sign, and then add it at the end.

So think about it like this,

We do 2² first, and then add the minus, so it becomes -4 instead of positive 4. Does that make sense?

Answer 2

Answer: Incorrect

Step-by-step explanation:

Rule :

[tex](-10)^2=| -10|^2 =100 \\\\ -10^2=-(10)^2=-|10|^2=100[/tex]

Then :

[tex]\rm -2^2=-|2|^2=-4 \\\\ (-2)^2= |-2|^2=4 \\\\ Then : \\\\ -2^2 =(-2)^2 \\\\ -4 \neq 4[/tex]


Related Questions

f(x) = 3(2)x What is f(4)?

A. 24
B. 12
C. 4
D. 48

Answers

Answer:

a.

Step-by-step explanation:

x=4

3(2)=6

6(4)=24

24 is your answer!

Jamal has two trails. the first trail is 5 1/3 miles long, and the second trail was 1 3/4 times as long as the first trail. how many miles did Jamal walk?

Answers

Answer:

The correct answer is Jamal hiked [tex]14\frac{2}{3}[/tex] miles.

Step-by-step explanation:

To solve this math problem, you will need to convert mixed numbered fractions, into improper fractions.

To do that, you will need to multiply the whole number with the denominator (Ex: 5 × 3 = 15), then when you receive the answer, add the answer with the numerator (Ex: 15 + 1 = 16), finally, you should receive a new answer, and to finalize the improper fraction, you always need to keep the denominator the same (Ex: The denominator is 3 so use the new answer as a numerator replacement. [tex]\frac{16}{3}[/tex])

--

After you have converted all the mixed numbers into improper fractions in the math problem, you are then able to use multiplication.

--

But first we have to calculate how long the second trail was.

[tex]\frac{7}{4} *\frac{16}{3} =7*\frac{4}{3} =\frac{28}{3} =9\frac{1}{3}[/tex] miles. Then, convert the mixed number into improper. ([tex]\frac{28}{3}[/tex])

--

Now add the number of miles of both trails.

[tex]\frac{16}{3} +\frac{28}{3} =\frac{44}{3} =14\frac{2}{3}[/tex]

With the result as: [tex]14\frac{2}{3}[/tex]

can someone help me with this

Answers

Answer:

net loss of 3 degrees

Step-by-step explanation:

we can write this out as an equation. let x represent the temperature when iko woke up.

x+11-14

simplify to get your answer:

x-3

this means that the net loss was 3 degrees over the course of the day.

PLS HELP WILL MARK BRAINLIEST!
A horse travels at about 65 kph. At this rate, how far can it travel in 20 minutes

Answers

Answer:  Approximately 21.667 km

This value as a fraction is 65/3, but I think the decimal form is probably more practical in real world settings.

======================================================

Work Shown:

20 min = 1/3 of an hour, since 20/60 = 1/3. In other words, there are three chunks of 20 minutes that make up a full hour.

distance = rate*time

distance = (65 kph)*(1/3 hr)

distance = (65*1/3) km

distance = (65/3) km

distance = 21.667 km which is approximate

Answer:

Distance rate=Rate x Time

Distance= (75 km/h) 20 mins

Convert 20 mins in hours= 1/3 h

Distance= (75 km/h) (1/3 h)= 25 km.....

listen ok

Step-by-step explanation:

hope it help

write an equation of the line that has each pair of intercepts
x-intercept: 6 y-intercept: 3

Answers

Answer: y = 6x+3

Step-by-step explanation:

I NEED HELP ASAP PLEASE NO LINKS!!!

Answers

Answer:

1/8

Step-by-step explanation:

I looked it up lol

Answer:

1/8

Step-by-step explanation:

2^-3

= 1/2^3 ( The reciprocal of the negative exponent is positive).

= 1/8

please help me solve this problem please

Answers

Answer:

I think that the bottom is multiplying by 4 to get the rest for the bottom

HELP PLS DUE IN 5TH PERIOD AND IT 3RD PERIOD RNN

Answers

Answer:

Step-by-step explanation:

Just plot them in the right location we really can't help with that

My friend need urgent help!

Answers

Answer:

4

Step-by-step explanation:

Divide each value of y by the corresponding value of x.

20/5 = 4

40/10 = 4

80/20 = 4

200/50 = 4

All quotients are 4.

Answer: 4

Tell the mistake that was made in solving this equation. Tell the answer and one thing that is important to remember when simplify.

-8y+5x+3y-9x
-11y+5x+-9x
-11y+14x​

Answers

Answer:

-8y + 5x +3y-9x

-8y+3y+5x-9x

-5y-4x

put 5.04, 5.069, 5.4, and 5.64

Answers

Answer:21.149

Step-by-step explanation:If you add them all together you get 21.149 5x4 =20 so add the decimals last then add 20 when you add .04+.069 then add .4+.64 then add the answers and get 21.149.

please help me quickly

no random links i will report :)

Answers

The answer should be D. I hope this helps and could I get brainliest please?!

Daria bought
a skein of alpaca yarn for $47.50, a skein
of angora yarn for $32.14, a skein of wool
yarn for $16.50, and a pair of knitting
needles for $3.86. How much did she
spend in all? Describe how you calculated
your answer

Answers

The total amount Daria spent on all her purchases is $100

In order to determine the total amount Daria spent on all her purchases, the cost of each item has to be added together.

Addition is a mathematical operation that can be used to determine the total sum of two or more values. other basic mathematical operations are subtraction, multiplication and division.

Total amount spent = cost of a skein of alpaca yarn +  cost of a skein

of angora yarn + cost of a skein of wool  yarn +   cost of a pair of knitting

needles

$47.50 + $32.14 + $16.50 + $3.86 = $100

A similar question was answered here: https://brainly.com/question/13319621?referrer=searchResults

Mary Seitz invested a certain amount of money in a savings account paying ​3% simple interest per year. When she withdrew her money at the end of 3​ years, she received in $3900 interest. How much money did Mary place in the savings​ account?

Answers

Answer:

351

Step-by-step explanation:

3%=0.03

3900*0.03*3=351

what is 4 times 4 divded by 8

Answers

Answer:

2

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

4 groups of 4, or 4x4=16.

16 in eight groups, or 16/8 is 2.

I’m the figure below, g II j. Find the values of z and x.

Answers

Answer:

84°+z°=180°[co exterior angles]

z°=180°-84°

z°=96°

84°=(3x+6)° [alternate exterior angles]

84 - 6=3x

78/3=x

26=x

Find x, PLEASE HELP!
25 points in it for you, brainliest, thanks and a 5 star (need it quick)

Answers

A right triangle with 45 degree angles mean bot the height and the base are the same, so Y would be 9.

The hypotenuse, which is labeled x is the length of the side multiplied by the square toot of 2.

Answer: X = 9√2

how do I convert Fahrenheit to Celsius? my homeschooling program does a very confusing job at explaining things.​

Answers

Answer:

start with your fahrenheit then Subtract 32 then divide by 1.8

Step-by-step explanation:

Which of the statements about the graph below is true the first answer

Answers

Answer:

yes the first answer hope you get it right

look at the following numbers: -5, -6, 0, 6 Which pair of numbers has a sum of zero

Answers

Answer:

6 and -6 because the positive 6 equals out the negative 6.

At store B, the cost is given by y = 2x where y is the cost in dollars and x is the
number of pounds of apples.


What is the unit price apples at store B? How did you use the equation to find the unit price?

Answers

Answer:

.50 per pound of apples in store

5+4(-20)
Be sure to consider the order of operations!!

Answers

Answer:

[tex]5 + 4( - 20) \\ 5 + ( - 80) \\ 5 - 80 \\ = - 75[/tex]

I hope I helped you^_^

Answer:

5+4(-20)

Step-by-step explanation:

So you do the one's in parentheses first, which is -20, and then you do 5+4  which is 9

guys…..am i hot?????

Answers

Nope because I said so

Answer:

just btw there is no pic lol

Step-by-step explanation:

Can someone help me out???
How could you use the hexagon you constructed to create a 12-sided figure?

Answers

Answer:

to create this figure, connect the three sets of opiate points of the hexagon. Construction angle bisectors for each new angle, creating six new intersections with the circle, for a total of 12 points. Connect the points to make a regular 12-sided polygon.

Step-by-step explanation:

Decide if the following statement is true or false. A simple random sample of twelve 2+ bedroom houses in Rockingham County has a mean monthly lease of $695 with a standard deviation of $135. The true rental cost will be from $560 to $830

Answers

Answer:

Step-by-step explanation:

783

The given statement is "False" because the statement's range is based on the mean and standard deviation of a simple random sample of houses, not the whole population of Rockingham County's houses..

What is a simple random sample?

A simple random sample is a subset of a population chosen in a way that gives each member of the population an equal chance of being selected. The mean and standard deviation of a simple random sample provides information about the population from which the sample was drawn, but they do not provide a range in which the true value of a population parameter is guaranteed to fall.

In this case, the statement provides a range for the true rental cost of 2+ bedroom houses in Rockingham County, but there is no guarantee that the true rental cost will fall within this range. The range provided in the statement is based on the mean and standard deviation of a simple random sample of houses, not the entire population of houses in Rockingham County.

Hence, the given statement is False.

Learn more about the standard deviation here:

brainly.com/question/14747159

#SPJ2

What is the slope of the line represented by the equation y = 5x - 3?
ult
3

Answers

The slope of the line y = 5x - 3 is 5

Answer:

y= mx + b

and to my knowledge 5 would be your slope since m=5

An airline runs a commuter flight between Portland, Oregon, and Seattle, Washington, which are 145 miles apart. An increase of 20 miles per hour in the average speed of the plane decreases the travel time by 12 minutes. What initial average speed results in this decrease in travel time? (Round your answer to one decimal place.)

Answers

The speed of the airplane is the ratio of the distance to the time

The initial average speed of the airplane is approximately 110.8 mph

Reason:

Given parameters are;

The distance between Portland Oregon and Seattle Washington = 145 miles

The decrease in travel time when the speed is increase by 20 mph =  minutes

The initial speed of the airplane, v = Required;

Solution;

[tex]t = \dfrac{145}{v}[/tex]

[tex]t - \dfrac{12}{60} = \dfrac{145}{v + 20}[/tex]

Therefore;

[tex]\dfrac{145}{v} - \dfrac{12}{60} = \dfrac{145}{v + 20}[/tex]

Which gives;

[tex]\dfrac{145}{v + 20} - \dfrac{145}{v} + \dfrac{12}{60} = 0[/tex]

Therefore

0.2·v² + 4·v - 2,900 = 0

v ≈ ±110.8 mph

The initial average speed of the airplane, v≈ ± 110.8 mph

Learn more  here:

https://brainly.com/question/11365874

6 adults & 4 senior citizens have to pay $228 while 13 adults and 7 senior citizens have to pay $459 to visit an exhibition at the Art science Museum . Find the total amount 2 adults & Senior citizen have to pay to visit the exhibition.​

Answers

Answer: Rs. 69

Step-by-step explanation:

Let the amount that the adults have to pay be Rs. “x” and the amount that the senior citizens have to pay be Rs. “y”.

Step 1:

According to the question, we get

Equation 1:

6x + 4y = 228  

Equation 2:

13x + 7y = 459  

Step 2:

Then, by multiplying equation 1 by 7 & equation 2 by 4, we get

7 * [6x + 4y = 228]

⇒ 42x + 28y = 1596 …. (iii)  

And,

4 * [13x + 7y = 459]

⇒ 52x + 28y = 1836 …. (iv)

Step 3:

Now, Subtracting eq. (iii) from eq. (iv), we get

52x + 28y = 1836

42x + 28y = 1596

(-)    (-)         (-)

---------------------------

10 x = 240

----------------------------

⇒ x = 240/10 = 24

Substituting the value of x in Eq. (1)

(6*24) + 4y = 228  

⇒ y = [228 - 144]/4 = 21

Step 4:

Thus,  

The total amount that 2 adults and a senior citizen have to pay to visit the exhibition is,

= 2x + y

= (2*24) + 21 ….. [substituting x= 24 & y = 21]

= Rs. 69

Step-by-step explanation:

Hope this helps

can i get braineist

help me my people plzzzzzzzzzzz

Answers

Answer:

31,500

Step-by-step explanation:

Hope this helps!

Which set of numbers are rational numbers but not integers, whole numbers, or natural numbers? PLEASE HURRYYYYYY!!!!!!

Answers

Any number in the form of p/a where p and q is not equal to 0 is a rational number.
Examples of rational numbers are 1/2, -3/4, 0.3, or 3/10
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