PLEASE HELP!!!!!!!

Which of the following functions represent exponential decay?
y = -2 x
y =(1/2)^ x
7 = 2^ 0.5x
y = 2^x

Answers

Answer 1

Answer: C) y=2^0.5x

Step-by-step explanation:

Trust me pls


Related Questions

Brandon swims several times a week in a lake near his house. This past summer, the average water temperature was 18 °C, which is 10% cooler than it was last summer. What was last summer's average water temperature?

Please explain how you got the answer. Will give brainliest to the best explained and correct answer

Answers

18 x 1.1 =19.8 c

Adding 10% is equal to multiplying by 1.1

Answer:

18 x 1.1 =19.8 c

Step-by-step explanation:

Clare mixes
2 1/2
cups of water with
1/3
cup of orange juice concentrate.
—————————
How much water would she use for one cup of concentrate? (use a decimal)
—————————
How much water would she use for 10 cups of concentrate? (use a decimal)

Answers

Answer:

1. 1 cup of concentrate would use 7.5 cups of water.

2. 10 cups of concentrate would use 75 cups of water.

Step-by-step explanation:

Because 1/3 cup of concentrate is mixed with 2 1/2 cups of water, to find how much water one cup of concentrate would use, you would have to multiply both 1/3 and 2 1/2 (2.5) by 3. Then, you get 1 cup of concentrate equals 7 1/2 (7.5).

To find the answer to the next question, simply multiply by 10.

Luke was out of cereal for breakfast. He walked to the grocery store to buy his favorite, Honey Nut Cheerios. While looking at the cereal, he noticed all the different box sizes and different prices. A giant "Family Size" box contained 14.7 oz and cost $5.99. A small, individual size contained 1.5 oz and cost $1.89. He wanted to get the most "bang for his buck." Which choice is the better buy? In other words, which choice is cheaper per ounce? Which one should he buy and why?

Answers

Answer:

The answer is the family size

Step-by-step explanation:

I had to find how much it is per ounce and for the small box it cost $1.25 per ounce and for the family size it cost $0.41 which is less than $1.25 so the answer would be the family size of Honey Nut Cheerios

Answer:

Step-by-step explanation:

I had to find how much it is per ounce and for the small box it cost $1.25 per ounce and for the family size it cost $0.41 which is less than $1.25 so the answer would be the family size of Honey Nut Cheerios

6/7 2/2 in simple form

Answers

Answer:

6/7 simplest form is 6/7

2/2 simplest form is 1/1

Tell me if wrong!

Step-by-step explanation:

how can bar diagrams help you to write expressions in which letters stand for numbers?

HELP I WILL GIVE BRAINLIEST FOLLOW YOU AND 30 POINTS!!!!!!!!!!!!1

Answers

Explanation/Answer: A bar diagram can be used to represent algebraic expressions or to give examples.

HAVE A GREAT DAY!

PLEASE HELP ME WITH THIS!! I WILL GIVE EXTRA POINTS,AND BRAINLIST IF YOU ANSWER THIS CORRECTY!!

Katie has taken 5 math tests this year. On the first she scored a 75. The third test she scored 10 points more than the first two. The fourth test she scored 95 and the last test she scored 90.

What is Katie's average (mean) math score?
A. 86
B. 84
C. 69
D. 67
E. 65

MAKE SURE YOU EXPLAIN TO!!! THIS IS NOT ALL THE POINTS YOU WILL BE GETTING! THERE WILL BE MOREE!! :))

Answers

Answer:

Her average score was 84, add them all up and divide by 5

Step-by-step explanation:

Pleasse help me with a math question

6m- (7 + 4m)
ANSWER ASAP

Answers

Answer:

=2m−7

Step-by-step explanation:

PLEASE HELP!!!!!!!! (Write each decimal as a percent)
0.08
0.39
0.169
0.47
8.53
0.49
5.09
3.21
0.95
0.3
NOW WRITE EACH PERCENT AS A DECIMAL
40%
63%
90%
13%
20%
689%
93%
654%
4%
71%

Answers

Answer:

0.08=0.8%    

0.39=3.9%

0.169=16.9%

0.47=4.7%

8.53=85.3%

0.49=4.9%

5.09=50.9%

3.21=32.1%

0.95=9.5%

0.3=3%

40%=4.0

63%=6.3

90%=9.0

13%=1.3

20%=2.0

689%=68.9

93%=9.3

654%=65.4

4%=0.4

71%=7.1

Step-by-step explanation:

Hope this helped, Have a Wonderful Day!!

8%
39%
16.9%
47%
853%
49%
509%
321%
30%
.40
.63
.90
.13
.20
6.89
.93
6.54
.04
.71

Daniel buys a video game, which is on sale for 30% off the regular price of $69.98. The combined taxes are 15%. How much does Daniel pay? Explain.

Answers

Answer:

$56.33

Step-by-step explanation:

30% off of $69.98 is ($49.99) then add 15% which makes it $56.33 .!

Answer:

48.986

Step-by-step explanation:

When I round 6396 to 3 significant figures, I get 6400. I was double checking my work and used scientific notation for 6400, which is 6.4*10³, but when I counted the significant figures in scientific notation, I only get 2, which are 6 and 4, but there were supposed to be 3. Anyone can help to explain?

Answers

This is one slight annoyance when it comes to sig figs, in my opinion anyway. You did the steps correct. The 639 bumps up to 640, so 6396 rounds to 6400 when rounding to 3 sig figs.

Normally the trailing zeros, ie zeros on the right, are not significant. So 6400 shows only 2 sig figs. What we need to do is draw a horizontal line over the first zero to show that it is significant (while the other zero is not significant)

So you'll write it like this [tex]64\overline{0}0[/tex]

This notation can be problematic when it comes to decimals because it could be easily mixed up with the repeating decimal notation.

When you convert [tex]64\overline{0}0[/tex] to scientific notation, you would get [tex]6.40 \times 10^3[/tex].

In short: [tex]64\overline{0}0 = 6.40 \times 10^3[/tex]

Here the zero is significant because the zero is present in the scientific notation result. Writing [tex]6.4 \times 10^3[/tex] shows 2 sig figs while [tex]6.40 \times 10^3[/tex] has 3 sig figs.

It's similar to how the number [tex]5.7[/tex] has 2 sig figs while [tex]5.70[/tex] has 3 sig figs. While the zero is trailing, having it after a decimal point indicates to the reader that you achieved this level of accuracy.

Answer:

This is one slight annoyance when it comes to sig figs, in my opinion anyway. You did the steps correctly. The 639 bumps up to 640, so 6396 rounds to 6400 when rounding to 3 sig figs.

Normally the trailing zeros, ie zeros on the right, are not significant. So 6400 shows only 2 sig figs. What we need to do is draw a horizontal line over the first zero to show that it is significant (while the other zero is not significant)

So you'll write it like this  

This notation can be problematic when it comes to decimals because it could be easily mixed up with the repeating decimal notation.

When you convert  to scientific notation, you would get .

In short:  

Here the zero is significant because the zero is present in the scientific notation result. Writing  shows 2 sig figs while  has 3 sig figs.

It's similar to how the number  has 2 sig figs while  has 3 sig figs. While the zero is trailing, having it after a decimal point indicates to the reader that you achieved this level of accuracy.

A family of six goes to the local sandwich shop. All six people order the combination meal, which includes a drink and a sandwich for $6.99. One person thinks the total bill for the family of six will be around $30.00.

Answers

Answer:D

Step-by-step explanation:

6.99 x 6 = 41.94
And
6 x 7 = 42

So the most reasonable answer would be (D . No , a reasonable estimate is around 6 . $7 = $42)

That is the closest answer to $41.94

Read The Question On The Following PNG

Answers

A. 9.42 I think would be the answer

Lucita does the division problem 3.302 ÷ -1.27, and gets -0.026. She doesn't understand this result because she had estimated the answer to be -3. What was Lucita's mistake?
A: Lucita's estimate is too low.
B:The decimal point should be to the left of the 2.
C:The decimal point should be to the left of the 6.
D:Lucita's estimate is too high.
Thank you to those who end up helping, xx

Answers

Lucita does the division problem. My dad told me you divide the biggest number. (3.302) with the little valued number (1.27) She doesn't understand not because (A) her estimate is too low.

So that leaves A eliminated.

It shouldn't be B because, you have to count the numbers to the left of the decimal.

So that leaves B eliminated.

Let's talk about D, Her estimate is too high. But, take a risk. Either choose C or D. Good luck! I really think this would help thanks to my dad's method.

What number is found in the whole numbers but not in the counting numbers?

Answers

The number that is considered a whole number and is not included in counting numbers is 0.

Answer:

0

Step-by-step explanation:

On the map below, city p and city q are 5.5 centimeters (cm) apart. What is the actual distance between city p and city q? 2cm= 35 miles

Answers

Answer:

96.25

Step-by-step explanation:

5.5/2=2.75

2.75x35=96.25

Ok so 2cm = 35 miles
Meaning ONE centimeter is 35/2, or, 17.5 miles of actual distance
And half, or 0.5 of a centimeter is 17.5/2 or 35/4, which is 8.75 miles
5 centimeters is 2 + 2 + 1 + 0.5
(35 miles) plus (35 miles) plus (17.5 miles) plus (8.75 miles) which would add up to be 96.25 miles

Elena solved the equation 2(x – 9) = 10 In the
following way. What mistake did she make?

Answers

Answer: Subtract 18 on both sides is wrong. Its supposed to be add 18 on both sides.

Step-by-step explanation:

She subtracted instead of adding.
2x-18=10
You add 18 to both sides
So it would be 2x=28
Then you divide 2 on both sides so x=14

Change each improper fraction to a mixed number.
Enter your answer in simplest form.
2.
62/7
Question 3
1 pts

Answers

you divid the top by the bottom and get 8.8571
divide and you’ll get 8.8571

Referring to the figure, the two figures below are similar. Find
the corresponding side for PQ.
a. XY c. SR
b. WZ d. WX

Answers

Answer:

there is no picture.

Step-by-step explanation:

Round 0.0245 to 2 significant figures. Detailed steps please!

Answers

0.025 is your answer ..hope it will help

It’s just 0.025. Significant figures are just the number of digits that are meaningful for precision, so this is basically going from three significant figures to two.

Please help me I will give you the briain thing and extra points. (image below) 10/13

Answers

Answer: B

Step-by-step explanation:

You have to look at the first number behind the decimal. C and D are wrong because the first numbers behind the decimal are zeros which is less than 3 and 1. A is wrong because .04753 is less than .04792

Assignment: 01.07 Operations with Scientific Notation

Answers

uhh do you need help with anything..? please leave a picture of it tho

X + (-4) = -2
What does X repesents??? Please help

Answers

Answer:

x=2

Step-by-step explanation:

x+(-4) is the same as x-4

First you have to get X alone so you add 4 to both sides because when you add 4 to both sides it will take away the 4 on the x side.

x-4=-2

+4    +4

x= -2+4                or you can see this as 4-2 which is 2

x=2

x=2

x+-4=-2
+2 +2
_________
-2 4
_ _ = 2
-2 -2

What is the measurement of angle x (in degrees)?

Explain how you got your answer.

Answers

x = 35

the little box you see means that the angle is 90 degrees in total

so that means this angle is a complementary angle (if you add two angles, the sum is 90 degrees)

so to solve for x your equation would be: 90-55 = x

90 - 55 = x

35 = x
I’m not sure if this is right since it’s been awhile but what I do it. {55+x=90 subtract 55 on both sides (55-90) that would get you 35 so x=35} (I think I kinda forgot how to do it)

Mrs. Taylor is knitting socks. it takes her 1/4 hour to knit one pair of socks. She has a meeting to go to in 3 1/2 hours.
How many pairs of socks can she knit before her meeting?

Answers

Answer:

14 socks.

Step-by-step explanation:

3 1/2 / 1/4

= 7/2 / 1/4

= 7/2 * 4

= 28/2

= 14 socks.

Answer:

14

Step-by-step explanation:

Mrs. taylor can knit 4 socks in an hour, so if she has to go to her meeting in 3 1/2 hours, she should be able to knit 14 pairs of socks. The reason for this is in 3 hours she can knit 12 socks because 4 times 3 is 12. Then, in half an hour she can knit 2 socks because she can knit one pair in 1/4 so in 1/2 it would be 2.

Help please help................

Answers

Answer:

8×150= RS.1200

Step-by-step explanation:

rate per square metre is 150/- so there are 8m

take 8×150= (final answer).

The answer is 8 x 150 = RS.1200

Can someone pls describe how to do this.. and thank you

Answers

Mathematics includes the study of such topics as quantity, structure, space, and change. It has no generally accepted definition. Mathematicians seek and use patterns to formulate new conjectures; they resolve the truth or falsity of such by mathematical proof.

Step-by-step explanation:

Mathematics is the study of numbers, shapes and patterns. The word comes from the Greek word "μάθημα" (máthema), meaning "science, knowledge, or learning", and is sometimes shortened to maths (in England, Australia, Ireland, and New Zealand) or math (in the United States and Canada). ... Numbers: how things can be counted.

Therefore, Mathematics is the abstract study of topics such as quantity (numbers), structure, space, and change!

Answer:

x + 14 = 5x - 74

x - 5x = -4x

-74 - 14 = -88

-4x = -88

-4x/4 = -88/-4

x = 22

Step-by-step explanation:

The steps above are how you would evaluate a problem like that!

Hope this helps!!

ABC is translated left 3 units to form the image ∆A′B′C′.

What are the coordinates of the vertices of ∆A′B′C′ ?
A′ = ( , )

B′ = ( , )

C′ = ( , )

Answers

Answer:

A = (-2 , -1)                 A’ = (-5 , -1)

B = (2 , -1)                  B’ = (-1 , -1)

C = (2, 2)                   C’ = (-1 , 2)

Step-by-step explanation:

Move each coordinate to the left 3 times! You will result in the prime coordinates of the letters!

Could someone please explain what this is? (12)(12)

Answers

Answer:

Multiply 12 by 12=144

Step-by-step explanation:

Merry Christmas!!

What point is 10 units right and 1 unit down from (-10,1)?

Answers

Answer:(0, -10)

Step-by-step explanation:

- (0,-10)
It (0,-10) unit

You want to measure the length of a ribbon in inches. You only have a centimeter ruler. The length of the ribbon is 15 cm. Is the ribbon longer or shorter than 15 inches? How many inches long is it?

Answers

Answer:

Shorter than 15IN, 5.9 or 6 inches

Hope this helps:)

Step-by-step explanation:

The ribbon is shorter than 15 inches, and its length is approximately 5.91 inches.

Given that a ribbon has a length of 15 cm, we need to calculate the length in inches,

To determine the length of the ribbon in inches, we need to convert the length from centimeters to inches.

To convert centimeters to inches, we can use the conversion factor 1 inch = 2.54 centimeters.

The length of the ribbon is 15 centimeters. To convert this to inches, we divide 15 by 2.54:

15 cm / 2.54 cm/inch = 5.91 inches (rounded to two decimal places).

So, the ribbon is shorter than 15 inches.

The ribbon is approximately 5.91 inches long.

Learn more about conversion factor click;

https://brainly.com/question/30567263

#SPJ6

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