Mathematics High School

Whoever answers gets brainly

Answers

Answer 1

Answer:

The function y = 5 [tex](.98)^{x}[/tex] represents exponential decay

The percentage rate of change is 2%

Step-by-step explanation:

The formula of the exponential growth is y = a [tex](1+r)^{x}[/tex], where

a is the initial valuer is the rate of increase in decimal ⇒ (1 + r) > 1

The formula of the exponential decay is y = a [tex](1-r)^{x}[/tex], where

a is the initial valuer is the rate of decrease in decimal ⇒ (1 - r) < 1

Let us solve the question.

∵ y = 5 [tex](.98)^{x}[/tex]

→ Compare it with the forms above

∴ a = 5

∵ The rate of change is .98

∵ .98 < 1

→ That means the rate of change is decreasing

∴ The function y = 5 [tex](.98)^{x}[/tex] represents exponential decay

→ From the 2nd form above

∵ (1 - r ) = .98

→ Subtract 1 from both sides

∴ 1 - 1 - r = .98 - 1

∴ - r = - .02

→ Divide both sides by -1

∴ r = .02

→ Multiply it by 100% to change it to a percentage

∵ .02 × 100% = 2%

∴ r = 2%

∴ The percentage rate of change is 2%

Related Questions

Graph the line:
y + 3 = 4(x - 1)

Answers

Add 3 to both sides of the equation. Add 4 and 3. Use the slope-intercept form to find the slope and y-intercept.

plzzzzzz i will give u a thank u and 5 stars

Answers

Answer:

the answer is 440 square inches.

you just have to multiply all the numbers.

Answer:

B. 440 square inches

Step-by-step explanation:

all you have to do multiply 5x8x11 = 440

Mary, Bianca and Steve are picking apples. Mary picks 264 apples. 1/6 of these apples are green. Bianca picks 150 apples. 28% of these apples are green. Steve picks 340 apples. 15% of these apples are green. Who picks the most green apples? You must show your working out in your workbooks.

Answers

Answer:

Steve picked most green apples among the three people.

Step-by-step explanation:

Given that:

There are three persons Mary, Bianca and Steve who are picking apples.

Few of the apples are green.

We have to find the person who picked the most number of green apples.

Let us first calculate the number of green apples picked by each one of them then we can compare the three values to find the required answer.

Total number of apples picked by Mary = 264

Number of green apples picked by Mary = [tex]\frac{1}{6}[/tex] of the total apples picked by Mary = [tex]\frac{1}{6}\times 264 = 44[/tex]

Total number of apples picked by Bianca = 150

Number of green apples picked by Bianca = 28% of the total apples picked by Bianca= [tex]\frac{28}{100}\times 150 = 42[/tex]

Total number of apples picked by Steve = 340

Number of green apples picked by Steve = 15% of the total apples picked by Steve = [tex]\frac{15}{100}\times 34 = 51[/tex]

We have 3 numbers now, 44, 42 and 51.

Clearly 51 is greatest of them all.

Therefore, Steve picked the most green apples.

Marco wants to buy a new smartphone that costs $495. He has already saved $75. Write and solve an inequality to find the least amount of money,
m, that Marco still needs to save before he can buy the smartphone. Enter your answer in the box
Marco needs to save at least $

Answers

Answer:

495-75=420 so

(−10,7)∪(7,11)(−1,2)∪(−4,0)[−1,9)∪(2,10]

Step-by-step explanation:

420 is that Marco still needs to save before he can buy the smartphone.

Here's a screenshot of the answer below:

Can some one help me with this, I can't get it, and i'll give brainliest, 5 star, and all the good stuff.

Answers

a. 2.964
b. 0.262
c. 0.4863

5. Decide whether each equation is true for all, one, or no values of x.
a. 2x + 8 = -3.5x + 19
b. 9(x - 2) = 7x + 5
C. 3(3x + 2) – 2x = 7x + 6

Answers

c doesn’t have a value , x equals 0 , x=0

I need to find the resultant matrix

Answers

the answers are there

i hope it will help you

What is the domain of this relation?

Answers

Answer:

{-3, 3, 5, 9}

Step-by-step explanation:

The domain is simply the inputs (x) used in the function.

Answer:

{-3,3,5,9} this is answer

): What is the expression which should be added to
8 - 3a² + 2a to get the result 5 +40°-7a)?

Answers

5z+3x=9a is the answer

What is the equation of the vertical asymptote for the graph below ?
y = 5 + 1 / x + 3

Answers

Vertical asymptotes can be found by solving the equation n(x) = 0 where n(x) is the denominator of the function ( note: this only applies if the numerator t(x) is not zero for the same x value). Find the asymptotes for the function . The graph has a vertical asymptote with the equation x = 1.

The equation of the vertical asymptote is x = -3

The function is given as:

[tex]y =\frac{5x +1}{x + 3}[/tex]

Assume the equation of the function is:

[tex]y =\frac{m(x)}{n(x)}[/tex]

So, by comparison;

We have:

[tex]n(x)=x + 3[/tex]

Set n(x) to 0

[tex]x + 3 = 0[/tex]

Subtract 3 from both sides

[tex]x = -3[/tex]

Hence, the equation of the vertical asymptote is x = -3

Answers

Answer:

(4,-2)

Step-by-step explanation:

Your answer to this question will be D :)

Jon and Mitchel go fishing. The mass of fish Jon caught was three times the mass of
Mitchel's catch. The total mass of fish caught was 13kg. What mass of fish did Jon anc
Mitchel each catch?

Answers

john: 9.75 Mitch: 3.25

plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz

Answers

3.67
...................

Answer:

Shredder A shreds about 3.67 pounds of paper per minute.

Step-by-step explanation:

1100 pounds/(5 * 60 minutes)

1100 pounds/300 minutes

3.6666...7 pounds/minute

3.67 lb/min

what is the slope of the line with the following equation? (y-3)= -4(x-5)

Answers

Answer:

slope = - 4

Step-by-step explanation:

The equation of a line in point- slope form is

y - b = m(x - a)

where m is the slope and (a, b) a point on the line

y - 3 = - 4(x - 5) ← is in point- slope form

with slope m = - 4

Answer:

-4

Step-by-step explanation:

First express it in the form of y=mx+b where m is the slope and b is the y-intercept

y-3=-4x+20

y=-4x+20+3

y=-4x+23 then m=-4 which is the slope

Regina eats a piece of fruit from a basket of apples, bananas, pears, and melons. Later her brother eats a piece of fruit from the basket. Do these represent independent or dependent events? Explain your answer.

Answers

these represent independent events because they are all equally distributed throughout this process theoretically proving that they are independent

Find the answer to 4.2 X 1.6, Explain the process you used to get your answer.

Answers

Answer: 6.72

I used a calculator lol

Alison's dog is 6 pounds more than five times the weight of gales dog what algebraic equation could you make to find G which is the way to gail's dog.

Answers

Answer:

g = (x - 6) / 5

Step-by-step explanation:

Given:

Let :

Alison's dog = x

Gale's dog = g

x is 6 pounds more than 5 times g

Mathematically,

x = 5g + 6

We can solve for g ;

x - 6 = 5g

Divide both sides by 5

(x - 6) / 5 = g

Toni and Makayla are working on a craft project. Makayla has 3 yards of ribbon and Toni has 4 yards of ribbon. They cut all the ribbon into pieces that are 1/4 yard long. How many pieces of ribbon do they have?

Answers

Answer:

Toni and Makayla have 16 and 12 pieces of ribbon respectively, 28 in total

Step-by-step explanation:

Fractions

Toni has 4 yards of ribbon and Makayla has 3 yards of ribbon.

The ribbon is cut into pieces of 1/4 yards each.

This means that Toni has:

[tex]\displaystyle \frac{4}{\frac{1}{4}}=16[/tex]

pieces of ribbon and Makayla has:

[tex]\displaystyle \frac{3}{\frac{1}{4}}=12[/tex]

pieces of ribbon.

Toni and Makayla have 16 and 12 pieces of ribbon respectively, 28 in total

95% of 15
i need help

Answers

Answer:

14.25

Step-by-step explanation:

im sorry im bad at explaning

Hi , how to do 5(d)?

Answers

Answer:

d)[tex] \frac{dy}{dx} = - \frac{6}{(2x - 5)^{4} } [/tex]

Gradient of curve at y= ⅛ is [tex] - \frac{3}{8} [/tex].

Step-by-step explanation:

Please see the attached pictures for the full solution.

I honestly don’t understand this. Can someone explain/help me with it?

Answers

Answer:

2 - 7 x

Step-by-step explanation:

2 - 7 xOr option three

Find the difference of the two expressions (1/2 x +2) - (2/3 x -6)

Answers

Answer:

-1/6 + 8

Step-by-step explanation:

(1/2x + 2) - (2/3x - 6)

apply distributive property

1/2x + 2 - 2/3x + 6

add like terms. add 1/2x and -2/3x together and then add 2 and 6 together

3/6 + 2 - 4/6 + 6

-1/6 + 8

-1/6 + 8 is your answer. i hope this helps, let me know if i got something wrong :)

k - 873 = -695
What is the answer

Answers

Answer:

k= -1,568

Step-by-step explanation:

I am pretty sure this is the answer if not I am soo sorry

Answer:

178 is the answer......

Solve the equation for y. y-x=5

Answers

y - x = 5

y = x + 5

Hope this helps! :)

Answer:

Hi! The correct answer is y=5+x!

Step-by-step explanation:

~Add x to both sides of the equation~

bob is twice as old as ralph. three years ago the sum of their ages was 45. what are their ages now?

answer using a let statement

Answers

Answer:

Were they both 45? I'm kinda confused on that part, but I think Ralph would be 48 and Bob would be 50

Step-by-step explanation:

Answer:

34 and 17

Step-by-step explanation:

Bob = B

Ralph = R

B=2R

B-3+R-3=45

B+R-6=45

+6 +6

B+R=51

Substitute B for 2R

2R+R=51

3R=51

R=17

2(17)=34

so B is 34 and R is 17

what is w/5 - 5 > -8?

Answers

Answer:

w > -15

Step-by-step explanation:

(w/5-5>-8)5

w-25>-40

w>-40+25

w > -15

Answer:

w=−12

Step-by-step explanation:

guys what is 3m divided by 7

Answers

Answer:

0.428571429 meters

Step-by-step explanation:

Heres your answer.

Determine whether quadrilateral ABCD with vertices
A(-4, -5), B(-3, 0), C(0, 2), and D(5, 1) is a trapezoid.
Step 1: Find the slope of AB. The slope of AB is 5
Step 2: Find the slope of DC. The slope of DC is
Step 3: Find the slope of BC. The slope of BC iS
Step 4: Find the slope of AD. The slope AD IS
The quadrilateral is a trapezoid because

Answers

Answer:

slope ab- 5

slope dc- -1/5

slope bc- 2/3

slope ad- 2/3

last one is- only one pair of opposite sides is parallel

Step-by-step explanation:

Answer:

-1/5

2/3

only one pair of opposite sides is parallel

Next Question

bisects each other

(2,2)

have the same mid point

Last Question

4/3

Justify and explain please and thank you if you answered :)

Answers

It’s -2. When the numerator and denominator have different signs, the quotient is negative. If both the numerator and denominator are negative, then the fraction itself is positive because we are dividing a negative by a negative

Give two ways to write the algebraic expression p ÷ 29 in words.
the quotient of p and 29
p divided by 29

the quotient of 29 and p
29 divided by p

the product of p and 29
p times 29

p subtracted from 29
p less than 29

Answers

The two ways to write the algebraic expression is the quotient of p and 29 and or p divided by 29. Option A

What are algebraic expressions?

Algebraic expressions are expressions comprising of variables, terms, factors, coefficients, constants.

These expressions are also made up of arithmetic operations such as;

AdditionSubtractionMultiplicationDivisionBracket

From the information given, we have the expression as;

p ÷ 29

It is important to note that the sign for division is '÷' or '/’

Division is an arithmetic operation is also called quotient.

Now, we can say that;

p ÷ 29 is the quotient of p and 29 and or p divided by 29.

Thus, the two ways to write the algebraic expression is the quotient of p and 29 and or p divided by 29. Option A

Learn more about algebraic expressions here:

https://brainly.com/question/4344214

#SPJ

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