Mathematics High School

PLEASE HELP 100 points and Brainliestwill be given!!

Which equation represents exponential decay?

PLEASE HELP 100 Points And Brainliestwill Be Given!! Which Equation Represents Exponential Decay?

Answers

Answer 1

Answer:

The answer is C

Step-by-step explanation:

Exponential decay is when b is between 0 and 1.

Answer 2

Answer:

C. y = 10(0.13)^x.

Step-by-step explanation:

exponential decay is decreasing from what I remember from Algebra 1 Honors. So therefore, your only answer can be C. y = 10(0.13)^x.

The others all increase because 31, 3.1, 1.03 are all bigger than 1 which means that they increase while .13 decreases.

C. y = 10(0.13)^x.

Related Questions

What is the slope of (0,-1) and (5,-5)

Answers

-4/5 it’s the correct answer
(-4,5) is the slope.

the ratio of the measures of the sides of a triangle is 2:7:6. if the perimeter of the triangle is 345 yards, find the measure of the median side.​

Answers

Answer:

the sides are 46, 161, 138 respectively to sides 2, 7, 6

Step-by-step explanation:

2+7+6=15

345/15=23   this is our factor

2x23=46

7x23=161

6x23=138

5.
a. Are triangles ABC and DEF similar?
Show or explain your reasoning.

Answers

YES they are!!!
explanation : if you rotate the angel to the right way they are very similar in shape and angels!!

Yes, the triangles are similar to each other by AA rule and EF = 8.

What is similarity in triangles?

When two triangles have congruent corresponding angles and corresponding sides in equal ratio, then they are said to be similar.

Given are the triangles, Δ ABC and Δ DEF,

In Δ ABC,

∠A + ∠B + ∠C = 180°

∠B = 180°- (60°+20°)

∠B = 100°

In Δ DEF,

∠D + ∠E + ∠F = 180°

∠F = 180° - (60°+100°)

∠F = 20°

∠A ≅ ∠D

∠B ≅ ∠E

∠C ≅ ∠F

We see, all the corresponding angles are congruent.

Therefore, according to definition of similar triangles Δ ABC ~ Δ DEF,

And,

AB/DE = BC/EF = AC/DF = 3/4

BC/EF = 3/4

6/EF = 3/4

EF = 8

Hence, the triangles are similar to each other by AA rule and EF = 8.

For more references on similarity in triangles, click;

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At Pete's pizza, the cost of a 1 topping pizza is $17.35 and the cost of a 3 topping pizza is $21.05.
Assuming the cost of a pizza follows a linear model, write an equation that represents C, the cost of any pizza with t,toppings.

Answers

Answer:

3

Step-by-step explanation:

17.35 * 3

Friday: What is the geometric mean of 9 and 10?
Write answer in simplified radical form (use the factor tree) I NEED HELP ASAPPPPP

Answers

The geometric mean of 9 and 10 is 9.5 as (9 x 10)^1/2 which is (90)^1/2 which is 9.48 and that rounded is 9.5 but in simplified radical form it’s 3 √10

I really don't understand this! Can someone give an explanation to me?

Answers

Step-by-step explanation:

Total number of Black cards is 26

Total number of cards having a ten is 4 out of which 2 are red

Number of favourable outcomes=28

TOTAL number of possible outcomes =52

Therefore the probability = 28/52 = 7/13

Which graph shows a proportional relationship?

Answers

Answer is C I’m pretty sure

There is a linear relationship between the variables x and y. And the line that passes through the origin. Then the correct option is C.

What are ratios and proportions?

A ratio is an ordered set of integers a and b expressed as a/b, with b never equaling 0. A proportional is a mathematical expression in which two things are equal.

Let the two variables x and y.

Where x is an independent variable and y is the dependent variable that depends on x directly. Then we have

The variable y is directly proportional to the variable x.

y ∝ x

When the proportionality sign is removed a constant k comes into the equation. That is given as

y = kx

There is a linear relationship between the variables x and y.

And the line that passes through the origin.

The graph is shown below.

More about the ratio and the proportion link is given below.

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Please Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1111

Answers

The equation will be:

x+12=38

You must substitute the (x, y) and check that the POI makes both equations ___.


TRUE because they both check out.


FALSE because they cannot work.

Answers

False because they cannot work

Drag and drop each equation to match the type of solution.

Answers

Answer:

B, A, C

Step-by-step explanation:

Which expression represents "the product of a and b decreased by 9"?

Answers

Answer:

ab-9

Step-by-step explanation:

the product of a and b: a*b

decreased by 9: -9

Answer:

The person above be is correct

Step-by-step explanation:

I figured I would let everyone know so they can trust it anyway have a good day☺️

PLS HURRY!!!!!!!!! YOU WILL BE THE BRAINLIEST.

Which data collections show bias? Check all that apply.
An English teacher polls the top-ten most avid readers to find their favorite books.
An insurance company polls drivers of sports cars to find their average number of tickets.
A restaurant manager surveys every tenth customer for one week.
An assistant principal surveys each student who is sent for discipline.
A fundraiser organizer draws five names from a hat that contains all entries.

Answers

Answer:

The English teacher, restaurant manager, and assistant principal show bias.

Step-by-step explanation:

The data collection for each survey is only gathering data from one small portion of the total population that could be surveyed.

Answer:

A, B, D

Step-by-step explanation

I got it right on the quiz on Edge 2021.

Can someone help me with this please?

Answers

Answer:

Classify by angles: Equiangular

Classify by sides: Equilateral

Step-by-step explanation:

An equiangular triangle has angles that all measure 60 degrees. An equilateral triangle is a triangle that has sides will all of the same lengths. This triangle meets both of these requirements.

Hope it helps!

is the function a^x increasing or decreasing?

is the function for a^-x increasing or decreasing?


Anyone please help asap for these both questions. thank you

Answers

Answer:

The function a^x is increasing, while a^-x is decreasing.

Step-by-step explanation:

The reason for this is the negative. a^x is increasing due to the positive power, while a^-x is decreasing to the negative power.

I hope I helped:)

I would appreciate Brainliest ;)

1 Write the slope-intercept form of the equation of the line. -​

Answers

Step-by-step explanation:

x=0 y=2

x=-2 y=0

y=mx+b

b=2

0= -2m+2

2m=2

m=1

y= x + 2

Find the area, to the nearest hundredth, of the figure

Answers

Answer:

Step-by-step explanation:

hypotenuse = √(14.4² + 6²) = √243.36 = 15.6 mi

area of triangle = 0.5×6×14.4 = 43.2 mi²

radius of semicircle = 15.6/2 = 7.8

area of semicircle = πr² = 60.84π mi²

total area = 43.2 + 60.84π ≅ 234.33 mi²

x - 8 = 40 solve in word form

Answers

Answer: 48

Step-by-step explanation:

add 8 to both sides

-8 and 8 both cancel out and 40 and 8 add to 48

A camera has a listed price of $594.99 before tax. If the sales tax rate is 7.25% , find the total cost of the camera with sales tax included. Round your answer to the nearest cent, as necessary.

Answers

Answer:

$638.16

Step-by-step explanation:

594.99x7.25%=43.17

594.99+43.17=638.18

An appliance store decreases the price of a​ 19-in. television set ​16% to a sale price of $509.88. What was the original​ price?

Answers

Answer:

the original price 3186.75

Find the measure of angle 1

Answers

Answer:

112 Degrees

Step-by-step explanation:

46+90=136

360-136=224

224/2=112

112 Degrees

Answer:

122

Step-by-step explanation:

46 + 90 = 136

360 - 136 = 224

224 ÷ 2 = 122

What's the circumference of a
circle with a diameter of 31 inches?
Use 3.14 for pi.

Answers

Answer:

circumference = 97.34

Step-by-step explanation:

circumference = diameter x Pi

31 x 3.14 = 97.34 inches

The circumference of the circle with a diameter of 31 inches is approximately 97.34 inches.

The circumference of a circle can be calculated using the formula C = πd, where C represents the circumference and d represents the diameter of the circle.

Given that the diameter of the circle is 31 inches, we can substitute this value into the formula:

C = 3.14 * 31

C ≈ 97.34 inches

Therefore, the circumference of the circle with a diameter of 31 inches is approximately 97.34 inches.

To know more about circumference click here :

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I have to solve this: (2x + 2/5)+(5x-4/5) and then simplify it.

Answers

Answer:

 35x - 2

 ———————

    5                  

i hope this helps

Step-by-step explanation:

Answer:

7x + 6/5 or 7x + 1 1/5

Step-by-step explanation:

Ya welcome.

A bag is filled with red,blue,and green marbles.

Red-70
Blue-120
Green-60

Marble is pulled out of random from the bag. What REDUCED fraction and percent represent the probability that the marble will be green?
HELPpppppp!!!!

Answers

Total number of marbles = 70 + 120 + 60 = 250
Prob of green = 60/250
Reduced fraction = 6/25
Percentage = 24%

How many three-digit numbers are divisible by 2,3 or 5?

Answers

Answer:

764 numbers

Step-by-step explanation:

Number of multiples of 2: is 2x50–2x499 which is 450 numbers.

Number of multiples of 3: 3x34–3x333 is 300 numbers

Multiples of 5: 5x20–5x199 is 180 numbers

Multiples of 2x3 or 6: 6x17–6x62 or 46 numbers.

Multiples of 3x5 or 15: 15x7–15x66 or 60

numbers.

Multiples of 2x5 or 10: 10x10–10x99 or 90 numbers.

Multiples of 2x3x5 or 30: 30x4–30x33 or 30 numbers.

450+300+180–46–60–90+30=

764 numbers.

PLease help I'll give brainliest if correct

Answers

Answer:

It would be a quadratic function

Step-by-step explanation:

If you plot all the points, you will see that it forms a parabola, since quadratic equations will form a parabola on a coordinate plane, that would be the correct answer.

Answer:

quadratic

Step-by-step explanation:

I had this question as well it's right for plato

Cameras R Us has a sale for 25% off camera bags, which is a discount of $20. To find the original cost of the camera bag, Tara creates the following diagram.

A 2-column table with 6 rows. Column 1 has entries 20 percent, 20 percent, 20 percent, 20 percent, 20 percent, Total 100 percent. Column 2 has entries 25 dollars, 25 dollars, 25 dollars, 25 dollars, 25 dollars, blank total.

What errors did Tara make in her diagram? Check all that apply.
There should be 5 rows labeled 20%.
The 25 should be for each percent, not dollar amounts.
The percents do not add up to a whole of 100%.
There should be 4 columns of 25% that each equal $20.

Answers

Answer:Its B. and D.

Step-by-step explanation:

Answer:

heyyyyyyyyyyyyyyy

Step-by-step explanation:

You picked two marbles from a bag and record their color. How can you make your selections independent events? Dependent events?

Answers

Answer:

Let's suppose the next case:

We have a bag, where there are 5 red marbles, and 5 blue marbles.

We have a total of 10 marbles.

Suppose that we pick a marble and we do not replace it, and suppose that the first one is a red marble.

Then now we have in the bag a total of 4 red marbles and 5 blue marbles.

Now let's find the probability of picking a blue marble, this will be equal to the quotient between the number of blue marbles (5) and the total number of marbles (9)

P = 5/9

Now, suppose that instead of a red marble in the first pick, we had a blue marble.

Then now we have 4 blue marbles and 5 red marbles in the bag.

Again, the probability of picking a blue marble will be equal to the quotient between the number of blue marbles (4) and total numbergof marbles (9)

P = 4/9

Then the first pick does affect the probabilities for the second pick, this means that if we do not replace the first marble we pick, then the events will be dependent.

Now, if we replaced the first marble we picked (we put it again in the bag) then the number of blue marbles and red marbles is always the same, then in this case bot events will be independent (the first event will not affect the second event)

square abcd has an area of 4m^2. square pqrs has an area of 36m^2. What is the similarity ratio of square abcd to square pqrs

Answers

Answer:

1:9

Step-by-step explanation:

4 years ago, the age of two sisters combined equal 24 years, and the younger sister was 8 years younger. How old are they today?

Answers

20 and 12 ...............

A cylindrical can of tennis balls holds a stack of three tennis balls so that they touch the can at the top,bottom,and sides. The radius of each tennis ball is 1.25 inches. Find the volume inside the can that is not taken up by three tennis balls.round to the nearest tenths.

Answers

Answer:

3.7555555536321

Step-by-step explanation:

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