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Answers

Answer 1

Answer:A: yes, f and g are both concave down

B: yes, f and g are both concave up

C: no, f is concave up and g is concave down

D : no, f is concave down and g is concave up

Step-by-step explanation:


Related Questions

Write and solve an equation to find the value of x. PLS HELP!!

Answers

Answer:

23.59 - 14.89 = x

x = 8.7

Step-by-step explanation:

To find x, you need to add all of the other sides and subtract it from the perimeter. 5.62 + 5.62 + 3.65 = 14.89.

23.59 - 14.89 = x, so x = 8.7

Answer:

8.7

Step-by-step explanation:

Add all the numbers together (5.62, 5.62, and 3.65) then take away from the result (23.59) to get answer.

In​ 2012, the population of a city was 5.82 million. The exponential growth rate was 2.95% per year.
​a) Find the exponential growth function.
​b) Estimate the population of the city in 2018.
​c) When will the population of the city be ​million?
​d) Find the doubling time.

Answers

Answer:

a) P(t) = 6.57e ^{0.0287t}P(t)=6.57e

0.0287t

b) P(6) = 7,805\ millionP(6)=7,805 million

c) t = 14.64\ yearst=14.64 years

d) t = 24.15\ yearst=24.15 years

Step-by-step explanation:

a) The function of exponential growth for a population has the following formula:

P(t) = p_0e ^{rt}P(t)=p

0

e

rt

In this equation:

p_0p

0

is the initial population

r is the growth rate

t is the time in years

In this problem we know that

r = 2.87\% = 0.0287r=2.87%=0.0287

p_0= 6.57p

0

=6.57 million in the year 2012.

So the equation is:

P(t) = 6.57e ^{0.0287t}P(t)=6.57e

0.0287t

Where t = 0t=0 represents the year 2012

b) If t = 0t=0 in 2012, then in 2018 t = 6t=6

The population in 2018 is:

\begin{gathered}P(t = 6) = 6.57e ^{0.0287(6)}\\\\P(6) = 7,805\ million\end{gathered}

P(t=6)=6.57e

0.0287(6)

P(6)=7,805 million

c) To know when the population is equal to 10 million we must equal P(t) to 10 and solve for t.

\begin{gathered}P(t) = 10 = 6.57e ^{0.0287t}\\\\\frac{10}{6.57} = e ^{0.0287t}\\\\ln(\frac{10}{6.57}) = 0.0287t\\\\t = \frac{ln(\frac{10}{6.57})}{0.0287}\end{gathered}

P(t)=10=6.57e

0.0287t

6.57

10

=e

0.0287t

ln(

6.57

10

)=0.0287t

t=

0.0287

ln(

6.57

10

)

t = 14.64\ yearst=14.64 years

d) The function is doubled when P(t) = 2p_0P(t)=2p

0

P(t) = 2(6.57) = 13.14 = 6.57e ^{0.0287t}P(t)=2(6.57)=13.14=6.57e

0.0287t

We solve for t.

\begin{gathered}\frac{13.14}{6.57} = e ^{0.0287t}\\\\ln(\frac{13.14}{6.57}) = 0.0287t\\\\t = ln{13.14}{6.57})}{0.0287})\

end

{gathered}

6.57

13.14

=e

0.0287t

ln(

6.57

13.14

)=0.0287t

t=

0.0287

ln(

6.57

13.14

)

)

t = 24.15\ yearst=24.15 years


Which of the following terms best describes three points that all lie in a
straight line?
A. Collinear
B. Congruent
C. Midpoint
D.equal

Answers

Answer:

A.

Explanation:

Collinear

The required term is "collinear" which best describes three points that all lie in a straight line. which is the correct answer would be an option (A).

What are the collinear points?

Collinear points are locations along a straight line that are represented by a collinear. They are always collinear since a straight line may be traced continuously between any two places. A collinear connection can exist between three or more points, but it is not required. The word required is "collinear," which best depicts three locations that are all in a straight line.

Therefore, the required term is "collinear" which best describes three points that all lie in a straight line.

Hence, the correct answer would be option (A).

Learn more about the collinear points here:

brainly.com/question/5191807

#SPJ2

| 3x + 2 |= 4x + 5
explain how to solve it please

Answers

Answer:

x = -3

Step-by-step explanation:

Subtract 2 from both sides of the equation.

3x + 2 = 4x + 5

3x + 2 - 2 = 4x + 5 - 2

Step 2.

Simplify. Subtract the numbers 3x =4x + 3

Now subtract 4 from both sides.

Combine like terms -x = 3

Divide both sides of the equation.

Cancel terms that are in both the numerator and denominator

Divide the numbers

And that's how X = -3

Hope this helped you! If it did, please mark as brainliest this helps me and others a lot. Have a wonderful day.

what expression gives the solution to -5+2x^2=-6x

Answers

Answer:

Step-by-step explanation:

2x² + 6x - 5 = 0

D = 36 + 40 = 76 = (2√19)²

[tex]x_{1}[/tex] = ( - 6 - 2√19) / 4 = ( - 3 - √19) / 2

[tex]x_{2}[/tex] = ( - 3 + √19) / 2

Rewrite in radical form

Answers

Answer:

6 1/3

Step-by-step explanation:

Isabel company offers other programs and incentives to help employees with their savings and expenses.

Answers

Answer:

dependent care FSA

Health FSA

IRA

Step-by-step explanation:

Please help please help,! :( this is urgent!

Answers

Answer: A

Step-by-step explanation:You are painting a 1/3 of a 1/4 so it's A

An account is opened with an initial deposit of $700 and earns 3.3% interest compounded semi-annually. What will the account be worth in 3 years? Round your answer to the nearest cent.

Answers

Answer:

772.22

Step-by-step explanation:

A=$700(1+0.0332)2(3). Simplify using the order of operations: A=$700(1.0165)6=$700(1.103174712)≈$772.22.

IX+XC= WHAT IS THE ANSWER

Answers

Answer: X googled it

Answer:  XCIX

This converts to the number 99

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

Explanation:

The upper case letter i means the number 1 in roman numerals. The X represents 10. The C represents 100.

I = 1

X = 10

C = 100

When we form something like IX, we have the smaller digit first and then a larger digit next. Whenever this happens, we subtract

IX = 10-1 = 9

Similarly

XC = 100-10 = 90

So we can see that

IX + XC = 9 + 90 = 99

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

Since XC is larger than IX, we list XC first when it comes to adding

In other words, we need to write IX+XC as XC+IX which collapses to XCIX

Placing XC next to IX without a plus sign implies the plus sign is there. This is effectively how roman numerals work (they are additive)

So,

XCIX = XC+IX = 90+9 = 99

Note how the XC takes care of the tens digit while IX takes care of the units digit.

WILL GIVE BRAINLIEST! Which is a Proportional Relationship?
Equation A- y= [tex]\frac{5}{x} y{2}[/tex]
Equation B- y= [tex]x^{3}[/tex]
Equation C- y= 2x- 5
Equation D- y= [tex]\frac{x}{7}[/tex]

Answers

Answer:

the answer is y= x/7

Answer:

its D

Step-by-step explanation:

u should be able to mark him brainliest now

the question is the picture​

Answers

Answer:

1/5x

Step-by-step explanation:

A gradient is another word for slope.

every 4 minutes the volume increases by 20

so = rise/run = 4/20

now reduce

4/20

2/10

1/5

Counting up on a number line starting at 0 corresponds with what numbers

Answers

The number coryspimding is seventie

Find the slope:

(-12, -13), (-12, 1)



Group of answer choices

14

Zero

Undefined

Answers

Undefined. Also there is this website called desmos, and if you go to the graph section, they have different graphs like two point, one point, etc. so you can figure stuff out like the slope:) hope this helps

Find a degree 3 polynomial having zeros -1,2 and 7 and the coefficient of x^3 equal 1.

Answers

Answer:

[tex]x^{3}-8x^{2} +5x+14[/tex]

Step-by-step explanation:

n=3

f(x) = (x-(-1))(x-2)(x-7)

=(x+1)(x-2)= [tex](x^{2} -x-2)[/tex](x-7)=[tex]x^{3}-8x^{2}+5x+14[/tex]

PLEASE HELP ME Jimmy's school is selling tickets to the annual talent show. On the day of ticket sales the school sold 4 adult tickets and 6 child Tickets for a total of $80 the school took and 24 on the second day by selling for adult tickets and seven child tickets find the price of an adult ticket and the price of a child ticket

Answers

Answer:

what is the OBJOBJ thing? wtheck

Step-by-step explanation:

What is the slope
of the graph?

Answers

Answer: Where is the graph? You can solve for the slope by doing y2-y1 over x2-x1

Step-by-step explanation:

Selena has a piece of ribbon that is 130 inches long. If she wants to make bracelets that are 9 inches long, how many inches of ribbon will be left over?

Answers

Answer:14 4/9

Step-by-step explanation:

130/9 = how many bracelets she can make
Turn it into a mix number
14 4/9, she can make 14 bracelets
There will be 4 inches left over

Determine the sample size required to estimate the mean score on a standardized test within 4 points of the true mean with 98% confidence. Assume that s = 15 based on earlier studies.

Answers

Answer:

67

Step-by-step explanation:

You have to use fractions to show your work and I'm not going to do that but just know that it is the answer.

a proportional relationship is represented on a graph with a line that has a slope of 40 what is the unit rate

Answers

Answer:40

Step-by-step explanation:


what is 1 and 1/4 divided by 1 and 2/5

Answers

Answer:

25/28

Step-by-step explanation:

there are 60student in a class there fourths of the. are girls how many boys are there​

Answers

Decide 60 by 4 that’s what I think cause it says there fourth
I’m assuming you meant three fourths are girls
60 * 3/4 = 180/4 = 45 girls
60 - 45 = 15 boys

While at the pet store, Fred counted the number of animals in the store. For every 3 dogs in the store, there were 4 cats. Identify the equivalent ratios of dogs to cats. Select two that apply. 6:8 B 300:40 C 9:12 D 6:2​

Answers

A and C would be your answer because
3x2= 6
4x2=8.
And
3x3=9
4x3=13

Answer:

I am thinking that it is A and C

Step-by-step explanation:

If I am right may I get a brailiest

If I am wrong I am so very sorry

The number 1,645.6 expressed in scientific notation equals

Answers

Answer:

[tex]1.6456 * 10^{3}[/tex]

Step-by-step explanation:

Step 1:  Convert to Scientific Notation

[tex]1645.6[/tex] is in standard notation

[tex]1.6456 * 10^{3}[/tex] is in scientific notation

Answer:  [tex]1.6456 * 10^{3}[/tex]

what i the answer and why this is for my little brother

Answers

Answer:

C, 1 1/14

Step-by-step explanation:

You would convert 1/2 to 7/14 and convert 4/7 to 8/14. You can now add them together, and once you do you get 15/14. You can now simplify, giving you your answer of 1 1/14.

The police in a certain city are investigating whether the proportion of minor traffic accidents is greater on Friday nights than on Saturday nights

Answers

what city lol? sorry i just need to answer so i can ask question bc i’m lost lol

If g(x) = -2x+4 and h(x)= -4x -5, find g(3)-h(5)

Answers

Answer:

3g−5h

Step-by-step explanation:

i just used a calculator lol but i wanted to help still

Answer:

3g-5h

Step-by-step explanation:

Six plus five times a number is more than the
number plus eight. Write an inequality and
solve it.

Answers

Answer:

x > 0.5

Step-by-step explanation:

Let the number be x.

6 + 5x > x + 8

4x > 2

x > 0.5

This is a question on inequalities. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)

Alex placed a classified ad in the local newspaper to sell his used Nissan Sentra. He plans to write a 9 line ad. The newspaper charges $17.50 for the first three lines (total) and then $8.25 for each extra line. How much will Alex pay for the ad?

Answers

Answer:

$67 total

Step-by-step explanation:

9-3= 6

6(8.25)= 49.50

49.50+17.50= $67

Answer:

$67.00

Step-by-step explanation

17.50 (first 3 lines) + 8.25 (for each of the 6 lines left)

17.50 + (8.25*6) =

17.50 + 49.50 =

67

How do you do these questions?

Answers

Answer:

k = 0.2

A = (M / P₀) − 1

Step-by-step explanation:

dP/dt = kP

When t = 0, P = 1000 and dP/dt = 200.

200 = 1000k

k = 0.2

P = M / (1 + Ae⁻ᵏᵗ)

When t = 0, P = P₀.

P₀ = M / (1 + A)

1 + A = M / P₀

A = (M / P₀) − 1

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