Which of the following equations represents an exponential function?

a.f(x)=2x+7
b.f(x)=[tex]-2x^3[/tex]
c.f(x)=[tex]2(5)^5[/tex]
d.f(x)=[tex]x^2+3x+2[/tex]

Answers

Answer 1
D

this is because the rest of the options are to the 5th power or 3rd power. an exponential function has x^2 and whatever other terms.

x^3 would make it a cube root function

Related Questions

At the most recent dance ASB sold 143 tickets and collected $1470 of students sold for $10.00 and teachers tickets sold for $15.00 how many teachers attended the dance

Answers

Answer:

8

Step-by-step explanation:

1470 = 10s+15t

143 = s+t

1470 = 10(143-t)+15t

40 = 5t

8 = t

If a tree casts a 24 foot shadow while a yardstick casts a 2 foot shadow what’s the height of the tree ? Need help please ASAP

Answers

Answer:

The tree is 12 yards tall

Step-by-step explanation:

Solve the equation for x.
2 x/3 = 100.6

A) x ≈ 2.22
B) x ≈ 19.96
C) x ≈ 0.41
D) x ≈ 6.65

Answers

Answer:

150.9

Step-by-step explanation:

2/3x=100.6

x=100.6/(2/3)

x=100.6(3/2)

x=150.9

Answer:

It is answer B

Step-by-step explanation:

SOMEONE HELP PLEASE!IM SO CONFUSED

Answers

9514 1404 393

Answer:

  arc MKL ≈ 19.02 m

Step-by-step explanation:

The figure shows angle KNL is the complement of angle KNJ, so is ...

  ∠KNL = 90° =∠KNJ

  ∠KNL = 90° -52° = 38°

We know that KM is a diameter, so arc MJK = 180°, and ...

  arc MKL = 180° +38° = 218°

In radians, that angle measure is ...

  218° × π/180° rad = 109π/90 rad

An arc length is given by the formula ...

  s = rθ . . . . . where r is the radius and θ is the radian measure of the arc

For this problem, the radius is MN = 1/2MK = 5 m, and the length of arc MKL is ...

  s = rθ

  arc MKL = (5 m)(109π/90) = 109π/18 m

  arc MKL ≈ 19.02 m

(I need help ) the graph shows the relationship between the
number of cubic yards of soil ordered and the
total cost of the soil delivered.

Answers

Answer:

80/320

Step-by-step explanation:

answer is given

From a point on the ground 47 feet from the foot of a tree, the angle of elevation of the top of the tree is 35 degrees . Find the height of the tree and show your work please. ​

Answers

Answer:

33

Step-by-step explanation:

Juliet has y quarters, 6 dimes, and 4 nickels. the total amount of money that juliet has is $3.30. how many quarters does juliet have?

Answers

Juliet has 10 quarters

What is the expression of the statement " taking away 3 from four times y” ?
(a) 4y+3 (b) 3y = 4 (c) 4y - 3​

Answers

Step-by-step explanation:

Join the Meet ❤️

Códe to joín :- eqt-kuxy-dpe

Everyone Can Jóin

Answer:

(C) 4y - 3

Step-by-step explanation:

"Taking away" is (-)

Four times y is 4×y or 4y

1) A circle has a diameter of 16 cm. Find its circumference. (Use the calculator's value
of 7. Round your answer to the nearest tenth.).

Answers

Answer:

1) A circle has a diameter of 16 cm. Find its circumference=πd=π×16=16π=50.265=50.27=50cm

evaluate the function

Answers

Answer:

f=(x^2/2)+(9x/2)

Step-by-step explanation:

If barak spend 20$ at the mall. That represents 16% of the money he earned at the pizza parlor . How much money did barack earn

Answers

Answer:

$125

Step-by-step explanation:

20 is 16% of what number?

20 = .16n

n = 20/.16 = 125

Line l has equation y=-3. Find the distance between l and the point E(-7,0).
Round to the nearest tenth.

Answers

Answer:

The given line has slope m=1

the perpendicular line MUST have slope -1

Since it MUST eat (-3,2), the intercept formula says

B = y - mx = 2 - (-1)(-3)  = 2 - 3 = -1

so the equation of the perpendicular line that eats point W is

y = -x -1

The lines y=x+3 and it's perpendicular y = -x-1 intersect at

  y = x+3 = -x-1

   2x+3 = -1

  2x = -4

  x = -2

THe intersection point is

(-2,1)

Finally by distance formula,

The distance between (-3,2) and (-2,1) is

 sqrt ( (-3 - -2)^2 + ( 2-1)^2)

= sqrt( (-3 + 2)^2 + (2-1)^2)

 = sqrt( (-1)^2 + 1^2)

  = sqrt ( 1+1)

 = sqrt(2)

Step-by-step explanation:

The distance between line l and the point E (-7, 0) will be;

D = 3.

What is distance between point and line?

The distance between a line ax + by + c = 0 and point (p, q) will be;

D = |ap + bq + c|/√a² + b²

Given that;

Equation of line;

y = -3

And, Point = E (- 7, 0)

Hence, The distance between a line and point is calculated as;

Equation of line;

y = -3

y + 3 = 0

Compare with ax + by + c = 0, we get;

a = 0, b = 1 and c = 3

And, Point = (p, q) = (-7, 0)

Thus, The distance between a line and point is;

D = |0 + 0 + 3|/√0+1

D = 3

So, The distance between line l and the point E (-7, 0) will be;

D = 3.

Learn more about the equation of line visit:

https://brainly.com/question/24656140

#SPJ2

Which of the following statements about the image below is true

Answers

Answer:

It is answer 3

Step-by-step explanation:

What is the exact area of a circle with a radius of 12 feet? 24π Square Feet 36π Square Feet 121π Square Feet 144π Square Feet Question 2. What is the approximate area of the circle? Use π = 3.14 (the circle has 10.4 inside it) 32.7 square centimeters 65.2 square centimeters 108.2 square centimeters 339.6 square centimeters Question 3. What is the approximate area of a circle with a radius of 28 centimeters? Use π = 3.14 87.9 square centimeters 175.8 square centimeters 2461.8 square centimeters 4923.5 square centimeters Question 4. What is the approximate area of a circle with a diameter of 50 centimeters? Use π = 3.14 87.9 square centimeters 379.9 square centimeters 1962.5 square centimeters 4923.5 square centimeters

Answers

Answer:

144πfeets² ; 339.6 cm² ; 2461.8 cm² ; 1962.5 square centimeters

Step-by-step explanation:

Area of a circle, A = πr²

1.)

with a Radius of 12 feets

A = π * 12² = 144πfeets²

2.)

Approximate area :

3.14 * 10.4² = 339.6224 feet²

3.)

with a Radius of 28 cm

A = 3.14 * 28² = 2461.76cm²= 2461.8 cm²

4.

Diameter = 50 cm ; Radius = 50/2 = 25

with a Radius of 25 centimeter

A = 3.14 * 25² = 1962.5 cm²

A doghouse is to be built in the shape of a right trapezoid, as shown below. What is the area of the doghouse?

24.5 square feet
59.5 square feet
70 square feet
147 square feet

Answers

A. 24.5 square feetttttttttttttttttttttt

Given Brainly to who ever help

Answers

Perimeter: 26
Area: 32

Let me know if you need me to explain in depth!!

Find the slope of the line using the two given points.

(0, -2) and (3, 4)

Answers

Answer:

m = 2

Step-by-step explanation:

Using the slope formula, we can find the slope of two points:

        y2 - y1

m = --------------

        x2 - x1

The slope is the same thing as change in y over change in x. Now, plugging in the points (0, -2) and (3, 4):

       4 - (-2)       4 + 2     6

m = -----------  =  ------- = ------  =  2

        3 - 0            3         3

So the slope is 2.

Solve for x by completing the square. Round ur answer to the nearest thousandth. X^2+6x-3=0

Answers

Answer:

x = 0.375

it is already rounded to the nearest thousandth.

HELP ME TIMED PLZZ !!!

Answers

Answer:

There are 77 more third graders than second graders.

Step-by-step explanation:

415-338=x

x=77

Answer:

the answer is 77

Step-by-step explanation:

415-338 = 77

The length and width of a rectangle are 1/6 inches and 3/8 inches. What is the perimeter (in inches) of the rectangle?

Answers

Answer:

1 1/12inches

Step-by-step explanation:

Given

Length = 1/6 inches

Width = 3/8 inches

Perimeter of the rectangle = 2 (Length + Width)

substitute

P = 2(1/6 + 3/8)

P = 2(4+9/24)

P=  2(13/24)

P = 26/24

P = 1 2/24

P = 1 1/12inches

hence the perimeter of the triangle is 1 1/12inches

Simon has seven apples he gives 20% to his friend micheal how much apples deos micheal have

Answers

Answer:

He will have 1.4 apples.

Answer:

1 1/4

Step-by-step explanation:

asked my family lol

3. Jaselle earned $80.00 raking leaves. This is 8 dollars more than 4 times the amount that Dillon
earned. How much did Dillon earn?
(25 Points)

Answers

The answer is 12 hope this helps

Answer:

Step-by-step explanation:

So, Jaselle has $80.00.

This is 8 dollars more than 4 times the amount that Dillon

earned.

$80.00 - 8.00 = $72.00

4 Times average amount = $72.00

Average (begining amount) = $18.00

I HOPE THIS HELPS :3

the model below, the anchor of a guy-wire is 16 feet away from the telephone pole. John puts a 5 foot pole under the guy-wire parallel to the telephone pole (see image below).
John knows the distance he put his pole from the anchor, which is labeled X. John says he can use similar triangles to calculate the height of where the guy-wire meets the telephon
ble.
o you agree with John's statement that he can prove similarity if we know side x? Provide mathematical justification.
h
5 ft
16 ft
В І у

Answers

Answer:

Yes, because the two triangles share common segments.

A group of friends wants to go to the amusement park. They have $243.25 to spend on parking and admission. Parking is $15.75, and tickets cost $22.75 per person, including tax. How many people can go to the amusement park?

Answers

Answer: 10 people

Step-by-step explanation:

Parking needs to be paid for but if all friends are going together, they need to only pay once for parking.

The amount spent on just tickets is therefore:

= 243.25 - 15.75

= $227.50.

If $227.50 was for tickets alone, the number of tickets they could buy is:

= Total amount left/ Price of tickets

= 227.50 / 22.75

= 10 people

a. What is the circumference of the
largest circle that can be cut from a
square measuring 30 cm on a side?
Use 3.14 for T.


b. What percent of the perimeter of the
square is the circumference of the
circle?

Answers

Answer:

Step-by-step explanation:

a. The diameter of the circle will be 30 cm

So circumference is 3.14 * 30  = 94.2 cm.

b. Required percentage = (94.2) * 100 / (4*30)

= 78.5%.

find the simple interest principle 950 interest rate 12% time 4 years

Answers

Answer:

A= $1406

Step-by-step explanation:

The formula for simple interest is A=P(1+rt), where P=Principal, R=Rate, and T=Time. Before you plug your numbers into your formula, you must first convert 12% to a decimal (This is simple because all you have to do is divide 12 by 100.)- 0.12.

Now, you can plug your numbers into the formula: A=950(1+0.12x4). To make this less complex, I suggest working in the parenthesis first- specifically simplifying rt, or multiplying 0.12 by 4 (you should get 0.48)! Now, you are just about ready to go. A=950(1+0.48)- You can plug this into your calculator as is, or you can go on ahead and add the numbers in the parenthesis if that makes you feel better! (You should get 1.48).

Your final formula should be 950(1.48), and you should plug this into a TEACHER-APPROVED CALCULATOR to save time!

Your final answer should be $1406, otherwise you did something wrong! XD!

You earn $62.50 shoveling snow off of 5 driveways. You charge the same amount for each driveway. How much did you earn for each driveway?

Answers

Answer:

the answer is 62.5/5=12.5

Answer:

12.5

Step-by-step explanation:

62.50 ÷ 5 = 12.5

Hope this helps!

Rewrite the equation in Ax+By=C form.
Use integers for A, B, and C.

y+2=3 (x-6)

Answers

Answer:

Step-by-step explanation:

It x=2

Which equation is modeled on the number line?
A -7 -− 10 = -17 B 7 -− 10 = -3 C 7 -− (-10) = 17 D -7 -− (-10) = 3

Answers

Answer:

Option D

Step-by-step explanation:

For addition we move right on the number line and for subtraction we move left.

So, (-7) represents a 7 units to the left from the zero.

Then move 10 units right from (-7),

Therefore, (-7) + 10 = 3

Or (-7) - (-10) = 3

Option D is the correct option.

ASAP PLEAE HELP
I WILL GIVE BRAINEST

FIND THE INDICATED MISSING ANGLE MEASURE.
ROUND THE ANGLE MEASURE TO THE NEAREST WHOLE DEGREE.

Answers

Answer:

21.801

Good luck

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