Mathematics Middle School

What is the domain of the function g(x)=5^2x?
A-x>0
B-x<0
C- all real numbers
D- all positive real numbers

Answers

Answer 1
The domain of a function is a set of values that will map the function to a set of range. 

for function [tex]g(x)=5^{2x}[/tex] the domain can be any numbers, for example:

[tex]g(0)=5^{2*0}=5^0=1[/tex]
[tex]g(3)=5^{2*3}=5^6=15625[/tex]
[tex]g(-4)=5^{2*-4}=5^{(-8)}= \frac{1}{390625} [/tex]

Answer: C - all real numbers

Related Questions

what is the answer to 38.22÷2.6 and how would you show your work

Answers

answer is 14.7 hope this helps you

Are the opposites of -6.5 and the absolute value value -6.5 the same

Answers

I know the absolute value is how far away from zero is it. ( +6.5) so I would assume the opposite is the same thing.

In 1990, one city’s population was 98,064. In 2000, the same city’s population increased by 13,434. In 2010, the city’s population increased by another 7,892.

What was the city's population in 2010?

Answers

119,390 hope i helped

A school has 625 students and 325 of them are girls what fraction of the students are girls write your answer in simplest form
A. 13/25
B. 1/2
C. 65/125
D. 20/35

Answers

The answer to your question would be letter A. 13/25
Well you first turn that story problem into a fraction, 325/625. Then find the number that goes into the numerator and denominator evenly. Which is 5, then you get the answer of 13/25.

In total your answer is A. 13/25
I hope this helped and please let me know if I was correct or not. :D

joseph tweets 13 times a day. define each variable and write an algebraic expression to describe the number of posts after any given number of days

Answers

Let y = the total amount of tweets Joseph sends.

Let x = how many days have passed.

y = 13x.

If you were to plot this as a line, your first and second points would be (1,13) and (2,26), respectively.

write 2 numbers that fit each description.if there is no such number write none.

1) negative integer
2) negative rational number that is not an integer
3) negative irrational number

Answers

negative rational number that is not an integer
1) -2, -3 (any negative whole number)
2) -1/2, -3/4 ( any negative number that isn’t a repeating decimal, or whole number)
3) square root of -3, square root of 2 (any negative number with a crazy, repeating, goes on forever decimal)

The cover of a photo album has an area of 97.5 square inches. Find its area in square centimeters.(1cm =
0.3937 inches)

Answers

38.38575 cm squared since if you multiply 97.5 * 0.3937, you get 38.38575

Answer: [tex]629.031 \text{ square centimeters}[/tex]

Step-by-step explanation:

Given : The cover of a photo album has an area of 97.5 square inches.

It is given that 1 cm =  0.3937 inches

By unitary method , 1 inch=[tex]\dfrac{1}{0.3937}=2.54000508001\approx2.54 \text{ cm}[/tex]

Then,  97.5 square inches =[tex]97.5\times2.54\times2.54[/tex]

[tex]\\\\=629.031\approx629.031 \text{ square centimeters}[/tex]

Hence, The required answer is[tex]629.031 \text{ square centimeters}[/tex].

What are factors and can you give me an example of an expression and it's factors

Answers

In the term
8
x
8x8, x, the factors are
8
88 and
x
xx.
In the term
Factors are a number that is multiplied by another number to get a product.
Ex: 7 is a factor of 21 since 7×3=21

Lori had $126.89 in her bank account. She deposited $21.49 into it and then wrote a check for her car repairs for $156.61. What was the ending balance in her account?

Answers

the answer is -8.23 dang im good

The ending balance would be  (-8.23).

What is unitary Method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Given:

Lori had $126.89 in her bank account.

She deposited $21.49 into it and then wrote a check for her car repairs for $156.61.

After deposit her balance would be

=126.89 + 21.49

=148.38

and, the balance after paying for the repair

=148.38 - 156.61

=$ (-8.23)

Hence, the ending balance would be  (-8.23).

Learn more about unitary method here:

https://brainly.com/question/22056199

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Kyra is particapatiog ina fundraiser walk a thon she walks 2 miles in 30 minutes if she continues to walk at the same rate determine how many minutes it will take her to walk 7 miles use a double line diagram to support your answer. PLEASE HELP ME I LOVE U IF U HELP ME

Answers

Okay. So by looking at this and doing mental math, it takes her 15 minutes to walk 1 mile. So for her to walk 7 miles, it will take her 105 minutes or 1 hour 45 minutes to do so. Here’s the double line diagram to support my answer (forgive me for the terrible writing).

If a perimeter of a room is 78 feet, what is the area of the floor of the room?

There is a rectangular diagram with the longer written "2w+3"and shorter side has "w" written.

Answers

show the picture and i will help you

Is sarah is 24 years younger than her mom and if the sum of their age is 68 how old is sarah?

Answers

Sarah is 22 years old and her mom is 46 years old and to check my work their age is summed up total so key word is sum and total so its addition, so lets add 22 and 46 and we get 68 total.

Grace sold 5/8 of her stamp collection. What is this amount as a decimal?

Answers

5/8 in decimal form is 0.625

Evaluate for x = 2.

(12x + 8)
4
A) 4
B) 5
C) 6
D) 8

Answers

(12x + 8) /4
= [12(2) + 8] / 4
= (24 + 8)/4
= 32/4
= 8

answer
D) 8
The answer would be 
D) 8

80 divided in a ratio of 3:2

Answers

The correct answer is:  " 48:32 " .  
__________________________________________Explanation:
__________________________________(3*80) divided by (3+2) = 240 ÷ 5 = 48 ;
__________________________________ (2*80) divided by (3+2)  = 160 ÷ 5 = 32 ;
__________________________________
So; the answer is:  " 48:32 " .
__________________________________

On the album 1989 by Taylor swift, Blank space is 12 seconds longer than shake it off. If the combined time of the two songs is 7 minutes and 30 seconds, how long is Shake It Off? Give your answer in minutes and seconds.

Answers

3 minutes and 36 seconds is the length of "Shake it off" by Taylor swift.

Source: Wikipedia

Answer:

Givens:

Blank Space is 12 sec longer than Shake It Off.The duration combined is 7 minutes and 30 seconds, which is 420 seconds.

Lest's call [tex]B[/tex] Blank Space and [tex]S[/tex] Shake it Off, the relations would be

[tex]B=12+S\\B+S=420[/tex]

Now, we replace the first equation into the second equation and solve for [tex]S[/tex]:

[tex]12+S+S=420\\2S=420-12\\2S=408\\S=\frac{408}{2}=204[/tex]

Then, we replace this value into the first equation

[tex]B=12+S\\B=12+204=216[/tex]

This means that Shake It Off is 204 seconds long and Blank Space is 216 seconds long.

Therefore, if we express in minutes and seconds, we would have:

[tex]204sec\frac{1min}{60sec}=3.4min=3 \ min \ and \  24 sec[/tex]

[tex]216sec\frac{1min}{60sec}=3.6 min=3 \ min \ and \ 36  sec[/tex]

writing an inequality for x that would give this rectangle a perimeter of at least 300 ft.
Length: 3ft
width formula: x+5ft

please show steps!

Answers

This is how I did it, I really hope it helped you with your homework

Answer:

142≤ x.

Step-by-step explanation:

Given : rectangle a perimeter of at least 300 ft and Length: 3ft  and width formula: x+5ft.

To find : Writing an inequality for x that would give this rectangle a perimeter.

Solution : We have given length = 3 ft.

Width = x + 5 ft .

Perimeter =  300 feet .

Perimeter = 2 ( length + width ) .

Plugging the values and greater than equal to sign for at least.

300 ≤ 2( 3 + x +5).

300≤ 2( 8 +x) .

300≤ 16 + 2x

On subtracting both sides by 16.

300 -16 ≤ 2x .

284 ≤ 2x.

On dividing both sides by 2.

142≤ x.

We can say x is at least 142.

Therefore, 142≤ x.

Is 10/11 rational or irrational? (10/11 = 0.909090)

Answers

the answer is irrational
The number 10/11 is a ratio of two integers. "Ratio" is another term for "fraction" in a sense. So this number is rational. Note how "ratio" is part of "rational".

Therefore, 10/11 is a rational number.  

Can someone help pleases

Answers

I can't really see the chart

Pls help me with grade 2 ecuation
2x square-5x+2=0

Answers

You can factor this equation, but first you have to get rid of the factor 2 in front of the x². So after dividing by 2 we get:

x² - 5/2 x + 1 = 0

now we're looking for two numbers that, when multiplied, give 1, and when added, give -5/2. Those numbers are -2 and -1/2 (this is the hard part, it is kind of trial and error. Usually you want to do this only on integers).

So we can factor as:

(x-2)(x-1/2) = 0

The solutions are x=2 or x=1/2

The solutions are x=2 or x=1/2

joshua swims 25 meters in 1 minute.Draw a graph of meters swam versus time.Find the value of the slope and interpret it in words

Answers

25/1, so your value of the slope is 25. Interpretation into words: For every minute passed, Joshua swims 25 meters.

Hope this helps you.

Answer:

Given,

The number of meters covered by Joshua in 1 minute = 25 meters,

So, the number of meters covered by him/her in x minutes, ( say y ) = 25x minutes,

⇒ y = 25x,

Which is the equation of line passes through origin,

If x = 1, y = 25,

If x = 2, y = 50,

So, by joining the points (1, 25) and (2,50) we will get the graph,

∵ Slope of a line y = mx + c is m,

By comparing,

The slope of the above line is 25 that shows the rate of change in meters per minute.

Note : x ≥ 0, because number of minutes can not be negative.

Write 36 as a product of its prime factors write the factors in order, from smallest to largest

Answers

2x2x3x3, this is the prime factorization of 36

Yuna missed 5 points out of 100 on her math test.What decimal number reprents the part of her math test that she answered correctly

Answers

the answer would be 0.05 because the five is in the hundredths place

Answer:

0.05

Step-by-step explanation:

Given function:

5 of 100find the decimal number

1.00=100%=100

this means..

5 of 100=0.05.

Help please!

What type of equation will best fit the data below?

Linear
Quadratic
Exponential

Answers

it's a parabolic curve, so quadratic is best

What type of equation will best fit the data below?

The given data represents a parabolic curve, that means it is a quadratic equation.

Explanation:

A parabola is defined as a curve with all the points at an equal distance from the focus and the straight line. While calculating the whole parabola, make sure that the equation for the given parabola must be in the standard quadratic form f(x) = ax² + bx + c, where "a" is not equal to zero.

for each pair of numbers identify which number is farther from positive 1 explain your reasoning

a. -7 or +3

b. -10 or +7

Answers

Just ignore the sign and then take the larger number :)

in a local coed softball keague, male to female ratio is 6:6. if there is 160 players in the league, how many are female?

Answers

80. Bc a 6:6 ratio is also a 1:1. So half of 160 them would be female.

PLEASE HELP!

A half of a class and a half of a student got A on a test. If yet another student got an A, then two-thirds of the class would have an A for the test! How many students are there in that class?

Answers

1/2x + 1 = 2/3x
1/2x - 2/3x = -1
-x/6 = -1
x = 6

Hope this helps!

6 students are there in a class.

What is an example of a word problem?

Word problems normally include mathematical modeling questions, in which records and statistics approximately a certain system is given and a pupil is needed to broaden a model. as instance: Jane had $5.00, then spent $2.00. How lots does she have now?

What are word problems referred to as?

In computational mathematics, word trouble is the hassle of finding out whether given expressions are equivalent with admire to a hard and fast of rewriting identities. A prototypical instance is the word problem for corporations, but there are many other instances as nicely.

Learn more about Word problems here https://brainly.com/question/13818690

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Lucy's final exam has true/false questions, worth 2 points each, and multiple choice questions, worth 3 points each. Let x be the number of true/false questions she gets correct, and let y be the number of multiple choice questions she gets correct. She needs more than 90 points on the exam to get an A in the class. Using the values and variables given, write an inequality describing this.

Answers

True/False questions = 2 points each(x).
Multiple choice questions = 3 points each(y).
She needs more than (>) 90 points.

2x + 3y > 90
2x + 3y > 90

Use the term LEG.

L - Least
E-equal
G- Greater

find the mean of the integers
-16,-27,21,-19,14,-3

Answers

To find the mean all you have to do is add all the numbers...
you should get -30
 and divide by a number of numbers, there are 6
 so -30/6 is -5

What is the ratio 45:75 simplified

Answers

3:5, divide both sides of the ratio by 15. Hope it helped:)
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