HELP ASAP WILL MARK BRAINLIEST
Public Libraries The number of libraries in the United
States from 1980 to 2000 can be modeled by the function
f(x) 5 38.9x 1 8685.8 where x is the number of years
since 1980.
a. Graph the function and identify its domain and range.
b. Find the number of libraries in the United States in 1996.
Explain how you found your answer.
c. When were there 9000 libraries in the United States?
Explain how you found your answer.
Answers
was this helpful??? i tried!
Related Questions
A cake recipe for 5 people requires two eggs. How many eggs do you need for a 15 person cake
Answers
Answer:
6 eggs
Step-by-step explanation:
15=5*3
so times the eggs by 3
2*3=6
☺ ANSWER THIS MATH QUESTION FOR ME ☺
IGNORE THE ALREADY SELECTED ANSWER CHOICE !
Answers
Answer:
It is actually the one you selected. Not joking.
Step-by-step explanation:
Please mark me BRAINLIEST!!!
A juicer holds 43 pints of
juice. How many 2 pint bottles
can be filled with that much juice?
Answers
Answer: 21.5 or just 21
Step-by-step explanation:
42 divided by 2 = 21 ._.
What is the complete factorization of the polynomial function over the set of complex numbers?
f(x)=x3−5x2+4x−20
Enter your answer in the box.
Answers
Answer:
[tex]x^3-5x^2+4x-20=(x-5)(x+2\mathbf{i})(x-2\mathbf{i})[/tex]
Step-by-step explanation:
Factorization of polynomials
Factor:
[tex]f(x)=x^3-5x^2+4x-20[/tex]
There are several techniques to factor polynomials. We'll use algebraic manipulation and common factor:
Separate in groups:
[tex](x^3-5x^2)+(4x-20)[/tex]
Factor out 4 from 4x-20:
[tex]=(x^3-5x^2)+4(x-5)[/tex]
Factor out [tex]x^2[/tex] from [tex]x^3-5x^2[/tex]
[tex]=x^2(x-5)+4(x-5)[/tex]
Factor out x-5:
[tex]=(x-5)(x^2+4)[/tex]
The roots of
[tex]x^2+4=0[/tex]
Are two complex numbers:
[tex]x=2\mathbf{i}, x=-2\mathbf{i}[/tex]
The complete factorization is:
[tex]\boxed{x^3-5x^2+4x-20=(x-5)(x+2\mathbf{i})(x-2\mathbf{i})}[/tex]
Multiply. Write your answer as a fraction in simplest form.
5/6(−8/15)=
Answers
Answer:
-4/9
Step-by-step explanation:
I used a calculator.
5/6(−8/15) in simplest form is -4/9.
What is a fraction ?A fraction is written in the form of a numerator and a denominator.There are two types of fractions. One is proper fraction in which numerator is less than the denominator and another one is improper fraction in which denominator is less than the numerator.All fractions can be written in the form of p/q, where q ≠ 0 cause anything divided by 0 is undefined.
According to the given questions we have to multiply two fractions (5/6)(-8/15) which is
= -40/90.
= -4/9.
learn more about fractions here :
https://brainly.com/question/10354322
#SPJ2
The product of a number and 12 is less than 5
Answers
Answer:
12n-5
Step-by-step explanation:
After leaving the runway, a plane's angle of ascent is 17º and its speed is 280 feet per second. How
many minutes will it take for the airplane to climb to a height of 11,000 feet? Round your answer
to two decimal places.
Answers
Answer:
45
Step-by-step explanation:
Mrs. Cook wants to give each of her 24 students the same amount of candy. If each package of candy has 36 pleces In
It, how many packages of candy should she buy so that there will be none left over?
4
3
5
2
Answers
Answer:
4
Step-by-step explanation:
Answer:
Hello, I wanted to write to you since it seems very bad of you that you steal the points of others, knowing that they DO HONESTLY EARN THEM, so ... why don't you try it? Look, in the end, it's you the one who learns
Step-by-step explanation:
Cheers;)
CORRECT ANSWER WILL GET BRAINLIEST
You install 638 feet of fencing along the perimeter of a rectangular yard. The width of the yard is 152 feet. What is the length of the yard?
Answers
Answer:
the answer is 486
Step-by-step explanation:
I need 15. please its my last question and fast
Answers
Explanation: It is equal to 1/9
Help me please find x to this answer I'm very desperate.
Answers
Answer:
I'm not 100% sure if I did it right but I got x=1
Step-by-step explanation:
They are equal to each other cause it is an isosceles triangle
10x-3=5x+2
add the 3 to both sides
10x=5x+5
subtract the 5x from both sides
5x=5
divide the 5 from both sides
x=1
A parking garage charges a 3.50$ base fee plus an hourly rate of 7.00$. If you have at most 21.50$ to pay for parking, how long can you park?
Answers
Answer:
You get a total of two hours of parking.
Step-by-step explanation:
First, you subtract the base fee of $3.50, which gives you $18.00. Then you subtract as many sevens there are in 18, which is two. And then your answer is shown, as two. Hope this helps!
Can anyone help? cause this for a test tomorrow I'll mark you the brainliest if you get the answer right
Answers
Answer: I know B and D are correct for sure, and i'm pretty sure C is too.
Step-by-step explanation:
Which relation is also a function?
Answers
Answer:
D.
Step-by-step explanation:
The easiest way to tell is a relation is a function is to look at every x. A function cannot have two x's that are the same.
A. There are two x's with the value of 10.
B. There are two x's with the value of 20.
C. If you wrote this in ordered pairs, there would be two x's with the value 2.
D. Every x is different, so the answer is D.
Hope this helps! Have a great day c:
Simplify -5(20 + 3).
85
-115
-97
-103
ill give brainliest
Answers
Answer:
The answer is -115
Step-by-step explanation:
Answer:
-115
Step-by-step explanation:
Ur welcome
Find the difference.
-32 - 4
Answers
Answer:
-36
Step-by-step explanation:
Answer:
-4 is closer to the number 0.
Jacks boat rental charges a $15 deposit fee $2 for each hour use to rent a paddle boat. Write an equation for C, the total cost,to rent the boat for h hours.
Answers
2h reprents the totals of hours times the 2 dollar hour use.
the 15 is added because its the deposit fee
The winner of an election received 1 more than 3 times as many votes as his opponent received. Let w represent the number of votes the winner received. Let x represent the number of votes his opponent received. Which question could be used to find the number of votes the winner received if the number of votes his opponent received is known?
Answers
Answer:
w=3x+3Step-by-step explanation:
Given that the winners vote is represented by w
and that the opponents vote is represented by x
the question states that "The winner of an election received 1 more than 3 times as many votes as his opponent received"
Translated to mathematical expression we have
w=3(x+1)
w=3x+3
therefore the equation to find the number of votes his opponent received is known is
w=3x+3
Select the graph that would represent the best presentation of the solution set.
|y+2| > 6
Answers
Answer:
e
Step-by-step explanation:
make 2 equations:
-equation 1: y+2>6
equation 2: -y-2>6
Then solve for each, and you will end up with -8>y>4
Jack sells T-shirts for his school during football games. At the first game, Jack sold 120 T-shirts. At the next game, he sold 68 T-shirts. What is the percent change, to the nearest percent, in the number of T-shirts sold?
A. 36%
B. 43%
C. 52%
D. 76%
Answers
Answer:
A
Step-by-step explanation:
HELP ASAP! GIVING BRAINLIEST. Please answer a,b,c, or d.
Answers
Find the value of x. PLEASE HELP - test tomorrow
The answer is 15.
I need to show my work.
THANK YOU!!!!!
Answers
Answer:
x= 15
Step-by-step explanation:
Please see the attached picture for the full solution.
HELP will mark branniest answer
what do you notice about the picture
Answers
Answer:
It is a traingle
Step-by-step explanation:
Answer:
They are instructions...
Step-by-step explanation:
Probably finding out the angles of a triangle
There may be patterns in the triangles..
The ratio of money in Terry's bank account to Faye's bank account was 3:5. Terry then put £220 in his account and Faye withdrew £300 from her account. They now had the same amount in their accounts. How much did they initially have altogether?
Answers
Answer:
Let the common ratio be x then
The amount of money in Terry' S Bank account will be 3x and that in Faye's Band Account will be 5x. So
According to question:
3x+£220=5x-£300
£220+£300=5x-3x
£520=2x
x=£210
Balance of Terry:3x
3×£210
£630
Balance of Faye=5x
5×£210
£1050
Money Altogether=£1050+£630
= £1680
Money Altogether in their account is £1680
Step-by-step explanation:
^
A mercury thermometer records a temperature of 8 degrees Fahrenheit at 10:00am.If the Temperature drops by 3 degrees Fahrenheit every hour,what will be the Temperature by 2:00pm of the same day
Answers
Given:
Temperature at 10:00 am = 8 degrees Fahrenheit
Temperature drops by 3 degrees Fahrenheit every hour.
To find:
The temperature by 2:00pm of the same day.
Solution:
Let y be the temperature after x hour after 10:00 am.
The temperature at 10:00 am is the initial temperature.
So, y-intercept of the linear function is 8.
Temperature drops by 3 degrees Fahrenheit every hour.
So, slope of linear function is -3. Here, negative sign represents the decrease in the temperature.
Slope intercept form of a linear function is
[tex]y=mx+b[/tex]
where, m is slope and b is y-intercept.
Substitute m=-3 and y=8 in the above equation.
[tex]y=-3x+8[/tex]
Difference between 2:00pm and 10:00 am is 4 hours. So, substitute x=4 in the above equation.
[tex]y=-3(4)+8[/tex]
[tex]y=-12+8[/tex]
[tex]y=-4[/tex]
Therefore, the temperature by 2:00pm of the same day is -4 degrees Fahrenheit.
Match the following items.
Given:
bisectsRTS
R ≅S
Prove:
1. Segment TQ bisects ∠RTS; ∠R ≅ ∠S
2. ∠1 ≅ ∠2
3. Segment TQ ⊥ Segment RS
4. Triangle RTQ congruent to Triangle STQ
5. ∠3 ≅ ∠4
6. TQ ≅ TQ
a. Definition of perpendicular.
b. Given
c. AAS
d. CPCTE
e. Definition of angle bisector.
f. Reflexive
Answers
Answer:
1. Segment TQ bisects ∠RTS; ∠R ≅ ∠S b. Given
2. ∠1 ≅ ∠2 e. Definition of angle bisector
3. Segment TQ ⊥ Segment RS a. Definition of perpendicular
4. Triangle RTQ congruent to Triangle STQ c. AAS
5. ∠3 ≅ ∠4 d. CPCTE
6. TQ ≅ TQ f. Reflexive
Step-by-step explanation:
Good luck on the rest of your assignment!
Answer: Answer:
1. Segment TQ bisects ∠RTS; ∠R ≅ ∠S b. Given
2. ∠1 ≅ ∠2 e. Definition of angle bisector
3. Segment TQ ⊥ Segment RS a. Definition of perpendicular
4. Triangle RTQ congruent to Triangle STQ c. AAS
5. ∠3 ≅ ∠4 d. CPCTE
6. TQ ≅ TQ f. Reflexive
Step-by-step explanation:
Good luck on the rest of your assignment!
If you were to roll the
dice two times what is the
probability it will NOT
land on a 4?
Answers
Answer:
.5
Step-by-step explanation:
was I right? if I was not sorry
Which expression is NOT equivalent to a^3b^3
((a^2)b)((b^2)a)
(a^4)b^4−ab
((a^2b^2))/2ab
(ab)(ba)(ab)
Answers
Answer:
A. ((a^2)b)((b^2)a)
Step-by-step explanation:
A. ((a^2)b) ((b^2)a)
Open parenthesis
(a^2b)(b^2a)
a^3b^3
B. (a^4)b^4−ab
a^4b^4 - ab
C. ((a^2b^2))/2ab
(a^2b^2) / 2ab
D. (ab)(ba) (ab)
(a^2b^2)(ba)
Therefore,
a^3b^3 = ((a^2)b) ((b^2)a)
PLS HELP!! ASAP!! 10 POINTS!!
The coordinates of the vertices of quadrilateral ABCD are A(−4, −1), B(−1, 2), C(5, 1), and D(1, −3).
Drag and drop the choices into each box to correctly complete the sentences.
The slope of AB¯¯¯¯¯ is Response area, the slope of BC¯¯¯¯¯ is Response area, the slope of CD¯¯¯¯¯ is Response area, and the slope of AD¯¯¯¯¯ is Response area. Quadrilateral ABCD Response area a parallelogram because Response area.
Answers
Answer:
The slope of AB is -2, the slope of BC is 1/2, the slope of CD is -3/4, and the slope of AD is 1/2, Quadrilateral ABCD is a trapezoid because only one pair of opposite sides is parallel
Step-by-step explanation:
I hope this helps you, I just took the test right now so I know these are the right answers :)
determine the rate of change (slope) and starting point (y-intercept)
Answers
Answer: slope = 1, y intercept = 3
Step-by-step explanation:
The line crosses the y axis at 3 and when you calculate rise over run, you get 1, so the slope is 1.