NEED HELP ASAP


Find f(-2) for f(x) = 2(4)^x

NEED HELP ASAPFind F(-2) For F(x) = 2(4)^x

Answers

Answer 1

Answer:

A.) [tex]\frac{1}{8}[/tex]

Step-by-step explanation:

f(-2) means plug in -2 in for x for the equation f(x), therefore,

f(-2) = [tex]2(4)^x = 2(4)^{-2} = \frac{1}{8}[/tex]


Related Questions

A company rents out 18 food booths and 23 game booths at the county fair. The fee for a food booth is $175 plus $8 per day. The fee for a game booth is $50 plus $7 per day. The fair lasts for d days, and all the booths are rented for the entire time. Enter a simplified expression for the amount, in dollars, that the company is paid.

Answers

Answer:

Step-by-step explanation:

For the food booths, we can create an equation based on the y = mx + b equation. Since they are charging 8 dollars per day and they last for d days, then the slope is 8 or the rate is 8d. Since they also charge us 175 dollars which is a one time fee, it is the y-intercept. So the equation is

y = 8d + 175.

Since there are 18 food booths, then we can multiply the equation by 18.

y = 18(8d + 175)

y = 144d + 3150

For the game booth, we do the same thing. Since they charge us 7 dollars per day and the fair lasts for d days, then the rate is 7d. Since they also charge us 50 dollars as a one time fee, then it is the y-intercept. The equation for the game booth is:

y = 7d + 50

Since there are 23 game booths, multiply the equation by 23.

y = 23(7d + 50)

y = 161d + 1150

Now add them up to know how much they are being paid.

y = 305d + 4300

Hope this helps.

5. Find the change in temperature: from -1°F to -20°F

Answers

Answer:

-19

Step-by-step explanation:

-19 I think sorry if it’s wrong

Dan selected a random sample of 100 students from the 1,200 at his school to investigate preferences for making up school days lost due to emergency closings. The results are shown in the table. Dan incorrectly performed a large sample test of the difference in two proportions using 58/100 and 42/100 and calculated a p-value of 0.02. Consequently, he concluded that there was a significant difference in preference for the two options. Which of the following best describes his error in the analysis of these data?
A. No statistical test was necessary because 0.58 is clearly larger than 0.42.
B. The results of the test were invalid because less than 10% of the population was sampled.
C. Dan performed a two-tailed test and should have performed a one-tailed test.
D. A one-sample test for a proportion should have been performed because only one sample was used.
E. More options should have been included, and a chi-square test should have been performed.

Answers

The error that Dan made was that D. A one-sample test for a proportion should have been performed because only one sample was used.

Facts about Dan's researchHe used only one sample being the 100 students he selected.He tested the difference in two proportions.

Dan should however have only used a one-sample test because the he only used one sample. By using a test that catered for two proportions, he misanalysed the data.

In conclusion, option D is correct.

Find out more on sample tests at https://brainly.com/question/15683511.

g is a trigonometric function of the form g(x) = a sin(bx + c) + d. Below is the graph g(x). The function intersects its midline at 3/4 *pi, 3) and has a maximum point at (pi,7) Find a formula for g(x). Give an exact expression.​

Answers

Answer:

[tex]g(x)=4sin(2x+\frac{\pi}{2})+3[/tex]

Step-by-step explanation:

Because the function intersects its midline at [tex](\frac{3\pi}{4},3)[/tex], then the midline is [tex]d=3[/tex].

Additionally, the amplitude is just the positive distance between the maximum/minimum and the midline, so the amplitude is [tex]a=7-3=4[/tex].

Also, given that period is [tex]\frac{2\pi}{b}[/tex] and the fact that the period is [tex]\pi-0=\pi[/tex] from our given maximum, we have the equation [tex]\frac{2\pi}{b}=\pi[/tex] where [tex]b=2[/tex].

Lastly, to find [tex]c[/tex], we know that the phase shift, [tex]-\frac{c}{b}[/tex], is [tex]-\frac{\pi}{4}[/tex] (or [tex]\frac{\pi}{4}[/tex] to the left) since [tex]\pi-\frac{3\pi}{4}=-\frac{\pi}{4}[/tex]. Therefore, we have the equation [tex]-\frac{c}{2}=-\frac{\pi}{4}[/tex] where [tex]c=\frac{\pi}{2}[/tex].

Putting it all together, our final equation is [tex]g(x)=4sin(2x+\frac{\pi}{2})+3[/tex]

Find the nth and 50th term of the sequence 7,9,11,13,15,..
Please also explain I don't want y'all to just straight up put the answer​

Answers

Answer:

7,9,11,13,15 are going in order of odd numbers soo

7,9,11,13,15,17,19,21,23,25,27,29,31,33,35,37,39,41,43,45,47,49,51,53,55,57,59,61,63,65,67,69,71,73,75,77,79,81,83,85,87,89,91,93,95,97,99,101,103,105

9th term is 23

and the 50th term is 105

hope it helps you

make me brainliest plz

Step-by-step explanation:

theeeee 50th term is 105

:)

What is the value of x?

Answers

Answer: x=30

Step-by-step explanation:

so basically, angle TUQ is supplementary to angle SVW. So to solve you do x+12+3x+48=180. So x=30

Answer:

x = 30

Step-by-step explanation:

∠QUT and ∠SVW are in a way, essentially supplementary angles. In other words, if you added both of the angles together, it would equal 180° which is a line. So,

x + 12 + 3x + 48 = 180

Solve for x by combining like terms :)

x + 12 + 3x + 48 = 180

4x + 60 = 180

4x = 120

x = 30

Do the ratios
2
6
and
7
9
form a proportion?

Answers

Answer:

No

Step-by-step explanation:

Cross multiplying shows this is false.

Simplify. 3/4 - 4x + 1/2x - 1/2 + 1/2x --- Enter your answer in the box. Do not use decimals in your answer.​

Answers

Answer:

-12x-1/4 (This is a fraction 12x-1 is on top and 4 is on the bottom)

Step-by-step explanation:

Answer:

−12

Sorry but I need help with more questions -_-

Answers

Given ratio :-

3 : 2

Let's write it in fraction:-

[tex] \boxed{ \tt \dfrac{3}{2} }[/tex]

Half ratio given :-

6 : ?

Now as u can see if 3 is multiplied by 2 then we get 6

so multiply numerator and denominator by 2

[tex] \to\sf \dfrac{3 \times 2}{2 \times 2} [/tex]

[tex] \to\sf \dfrac{6}{4} [/tex]

Required Answer:

6 : 4

Hi, i'm working on a presentation
I have to explain why its better to be good at academics than sports.
I need some pointer, 3 will do :)

Answers

Answer:

academics are more important than sport sports.

Step-by-step explanation:

studies are always more important than sports, because studies have more  job opportunities than sports. If you are good at your school subjects than there will be many possibilities to get into a good collage and  a good or decent paying job, but with sports on the other hand its much harder to get a scholarship and your preformance has to be perfect to almost perfect  and quite frankly the average sports scholarships is less than $11,000 which if you look at it isnt that much. And you are more prone to getting injuries.

Karen, Dan, and Carlos served a total of 89 orders on Monday at the school cafeteria. Dan served 4 times as many orders as Carlos. Karen served 7 fewer orders than Carlos. How many orders did they each serve?

Answers

Answer:

carlos served 16 times dan served 64 times and karen served 9 times

Step-by-step explanation:

im just going to say 16 + 64 + 9 = 89

Answer:

Carlos = 16

Dan = 64

Karen = 9

Step-by-step explanation:

Let Carlos be x

Dan = 4x

Karen = x - 7

Their total is 89

Create an equation of Carlos + Dan + Karen = 89

x + 4x + x - 7 = 89

Combine like terms

6x - 7 = 89

Add 7 on both sides to get rid of 7

6x = 96

Isolate x by dividing by 6 on both sides

x = 16

Substitute the amount of orders each person served

Carlos = 16

Dan = 64

Karen = 9

Hope this helps :)

Have a great day!

Which statement describes one way the point 2, -5 relates to -2, 5 on a coordinated plane

Answers

I think its D: The point (-2, 5) is a reflection of the point (2, -5) across the x-axis and then the y-axis.

What is missing from the frequency chart below
A. the tallies are missing
B. the title is missing
C. the total is missing
D. there is nothing missing

Answers

The title, A
That's the number one thing that should be put on the graph, then the data and then the total

Answer:

B. The title, every chart first starts with the title, then data recording.

Step-by-step explanation:

What is the leading coefficient in the quadratic below?
h(x)=-2x2+5x+10

Answers

Answer:

-2

Step-by-step explanation:

The leading coefficient in a polynomial is the coefficient that corresponds with the highest degree term. In this case, -2 is the leading coefficient since its term has x² as the highest degree of the quadratic.

1>) Alexa's 4th grade class has a spelling list organized by subject. The spelling list includes
170 words about history, 75 words about science, 60 words about math, and 55 words about
geography. Each week, Alexa's teacher tests her on 15 words from the list. Alexa's class has
already had 7 weeks of spelling tests. How many more words will Alexa be tested on before
the end of the year?

Answers

Answer:

Solution:

Total words are 170 + 75+60+55=360.

Each week, Sofia is test with 15 words from the list.

Total number of weeks it will take to finish the test is 24.

Average number of weeks in a year is 25 approximately.

Seven weeks are already over, that means 15×7=105 words are covered from the list. Conclusion:

Remaining words are 360—105=255.

These words can be covered in a group of 15 in a week, so 25515=17 are the number of weeks.

Therefore, the number of words that Sofia will be tested on before the end of the year is 255.

Step-by-step explanation:

Answer:

170+75+60+55=360

15x7=105

360-105= 255

Alexa has 255 more words until the end of the year.

Step-by-step explanation:

Hope this helps!!!

-Liyah

What is the surface area?
5 yd
6 yd
5 yd
5 yd
4 yd

square yards

Answers

25 square yards is the surface area

PLSSS HELPPP
Scott and his family went on a backpacking trip. They started hiking at 3:00 P.M. It took 1 hour and 55 minutes to reach their campsite. After they arrived, it took 1 hour and 10 minutes to set up the campsite. What time was it when Scott and his family finished setting up their campsite?

Answers

Answer:

6:05PM

Step-by-step explanation:

did the math , three hours and 5 minutes

Answer:

3:00 pm + 1 hr 55 min = 4:55 pm

4:55 pm + 1hr 10 min= 6:05 pm

Scott and his family finished setting up their campsite at 6:05 pm.

my question is “explain how to use partial quotients to divide 235 by 5.”

Answers

Answer:

235 can be split into 200+30+5. Each of these can be divided by 5: 200/5+30/5+5/5=40+6+1=47 to give us the quotient.

Another way is to double 235=2*200+2*30+2*5=400+60+10=470 and divide the result by 10 by simply removing the zero to give the quotient 47. This works because dividing by 5 is the same as doubling and dividing by 10: 2/10=1/5.

Please help me anyone

Answers

Answer:

Katherine is 6, Katherine's mother is 38

Step-by-step explanation:

Katherine: x

Mother: x²+2

equation: x²+x+2=44

x²+x-42

sum: 1

product: -42

numbers: 7, -6

(x+7)(x-6)

x+7=0 so x=-7 but an age cannot be negative

x-6=0 so x=6 this is an appropriate answer

substitue values back in

Katherine : 6

mother: 6²+2 (36+2)=38

Answer:

1st option is correct.

kathryn is 6 and her mother is 38

Step-by-step explanation:

Let her mother's age be y,

y = 2+x²

x+y = 44

y = 44-x

Now,

y = 2+x²

or, 44-x = 2+x²

or, 44-2 = x²+x

or, x²+x = 42

or, x²+x-42 = 0

or, x²+(7-6)x-42 = 0

or, x²+7x-6x-42 = 0

or, x(x+7)-6(x+7) = 0

or, (x+7)(x-6) = 0

Now,

x + 7 = 0

either, x = -7

or,

x-6 = 0

so, x = 6

We know age is never negative so x is 6.

Now,

x+y = 44

or, 6+y = 44

so, y = 38

Y = 10x so what’s the ratio of x:y

Answers

Answer:

10 to 1

Step-by-step explanation:

create a table of x-y values:

when x = 1, y = 10

when x = 2, y = 20

etc.

Answer:

1:10

Step-by-step explanation:

Please help with the math answer
2(4-6g)

Answers

Hey there!

2(4 - 6g)


DISTRIBUTE 2 WITHIN the PARENTHESES

= 2(4) + 2(-6g)


= 8 - 12g


= -12g + 8


Therefore, your answer is: -12g + 8


Good luck on your assignment & enjoy your day!


~Amphitrite1040:)

If seven-eights of a pound of meatloaf was shared equally among the 3 people, what fraction of a pound did each person receive

Answers

Answer:

7/24

Step-by-step explanation:

7/8 of a pound of meatloaf is divided by 3 people so each person will receive (7/8)/3 = 7/24 of a pound of meatloaf

Answer:

7/24

Step-by-step explanation:

By selling a chair for $372, Daisy loses 7%. At what price must she sell it to gain 10%.​

Answers

Answer: $440

Step-by-step explanation:

Given selling price = $ 372

Loss % = 7%

We know, cost price = selling price × 100/100 - loss%

Therefore, cost price = 372 × 100/100 - 7

= 372 × 100/93

= $400

Now cost price = $400

Gain% = 10%

Therefore, selling price = (100 + gain%)cost price/100

= (100 + 10)400/100

= 110 × 4

= $440

15 is 60% of what number? please answer really soon!​

Answers

Answer:25 hope this helps

Step-by-step explanation:

24 is the correct answer. Hope this helps.

find the perimeter of a square that is 3 3/4 inches on a side

Answers

Answer:

perimeter = 3 inches

Step-by-step explanation:

A square has 4 congruent sides , then

perimeter = 4 × [tex]\frac{3}{4}[/tex] ( cancel the 4's )

                = 3 inches

A new car costs $23,649. The dealer
has an end-of-the-year sale, and the
car will be priced at $22,399. How
much money can a customer save by
purchasing the car on sale?

Answers

Answer:

$1250

Step-by-step explanation:

subtract $22399 from $23649 which is $1250

I don’t know what x divided by 1.1 plus 3.6 equals 4.3

Answers

Answer:

0.0636363636

Step-by-step explanation:

x÷1.1+3.6=4.3

11×=4.3-3.6=0.7

11x=0.7

×=0.7÷11=0.06363636

There are 6 monkeys and 12 come along. How many monkeys are there now?

Answers

Answer:

18

Step-by-step explanation:

tis too simple use logic u can answer that

can anyone help me im kinda lost

Answers

Answer:

15&25

Step-by-step explanation:

umm 5,10,15,20,25

25*2=50???

not for sure on it but maybe?

Answer:

Because it goes by 5 each time, I presume the numbers 15 and 25 are the answers. Then 25 is multiplied by two, yielding 50.

Step-by-step explanation:

So, there are the answers, I believe. There was not a lot of information on the problem here.

please help me with this I need it fast :​

Answers

Answer:

its E

Step-by-step explanation:

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