Need help with this problem ^^

Need Help With This Problem ^^

Answers

Answer 1

Answer:

8t^2-2t+13 is the answer i believe


Related Questions

Each of the four graphs represents a function. Which function has an inverse that is also a function?
8
40
6
6
4
+
-8
-6 -4
4
-8
-6
-2
-2
-4
6
8
-4
-6
-6
-8
Ο Α
Ов
x
8
8
x
8
-8
-6
-4
6
-8
-6-4
6
8
U
-4
4
6
с
D

Answers

Answer124

Step-by-step explanation:

Answer: The answer is C

Step-by-step explanation:  Graph C passes the horizontal line test and becomes a function as the horizontal line does not cut the curve more than once along any line drawn.

Also, the curve passes the vertical line test as well, if a vertical is drawn, it does not cut the curve more than once if drawn any where vertically.

Thus, graph C passes both the horizontal and vertical line test. So the curve has both function and inverse function.

PLEASE HELP 100 points to who ever gives me the answer Compare the numbers using >, <, or =.

a) -2 3

b) |-12| |15|

c) 3 -4

d) |15| |-12|

e) 7 -11

Answers

Answer:

a) -2 < 3

b) |-12| < |15| (the absolute value of -12 is 12 so that's comparing 12 to 15)

c) 3 > -4

d) |15| > |-12|

e) 7 > -11

please help what is the value of
tan^2(180-tetha)​

Answers

Answer:

1/cos^2(180-theta) - 1

Step-by-step explanation:

According to trigonometry identity

tan^2 theta + 1 = sec^2 theta

tan^2 theta = sec^2 theta - 1

hence tan^2(180-tetha)​ = sec^2 (180 -theta) - 1

tan^2(180-tetha)​ = 1/cos^2(180-theta) - 1

Hence the value of tan^2(180-tetha)​ is 1/cos^2(180-theta) - 1

The three angles of a triangle are in the ratio 1:2:1.
a) Find all the angles of the triangle.
b) Classify the triangle in two different ways​

Answers

the answer is b) classify the triangle in two different ways

Pleeease help for my exam. Suppose a bag contains 8 silver coins and 2 bronze coins what is the probability of randomly choosing a silver coin not replacing it and then randomly choosing another silver coin??

Answers

Answer: 28/45

Step-by-step explanation:

Can you help me please it has to be harry potter and the philosopher's stone movie

Answers

Answer and Step-by-step explanation:

Divide each side by 2.

x [tex]\geq[/tex] 5

This is the correct answer for getting the x by itself.

#teamtrees #PAW (Plant And Water)

Answer:

4

Step-by-step explanation:

2x10=20

I think...

Please help me I don’t get it

Answers

Answer:

The number is 4

Step-by-step explanation:

We set up the equation given the conditions listed. Since it says 5 times the difference between a number and 7, we can use x as a placeholder for the number.

(x-7) is the difference between the number and 7. The question asks for 5 times that difference thus we multiply the entire thing by 5 giving us 5(x-7. The question says that it all equals -15 so we set that expression equal to -15.

Thus we get the equation and solve:

5(x-7)= -15 (distributive property)

5x-35= -15 (add 35 to both sides)

5x=20 (divide by 5)

x=4; so the number is 4

Triangle PQR IS SIMILAR TO Triangle KLM.

What is the value of x in inches?

A 7 in.
B 148 in.
C 92 in.
D 168 in.

Answers

D. 168 in.

15/72 = 35/168

A grocery store counts the number of customers who arrive during an hour. The average over a year is 10 customers per hour. Assume the arrival of customers follows a Poisson distribution. (It usually does.) Find the probability that at least one customer arrives in a particular one minute period. Round your answer to 3 decimals. Find the probability that at least two customers arrive in a particular 4 minute period. Round your answer to four decimals.

Answers

Answer:

0.1535 = 15.35% probability that at least one customer arrives in a particular one minute period.

0.1443 = 14.43% probability that at least two customers arrive in a particular 4 minute period.

Step-by-step explanation:

In a Poisson distribution, the probability that X represents the number of successes of a random variable is given by the following formula:

[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]

In which

x is the number of sucesses

e = 2.71828 is the Euler number

[tex]\mu[/tex] is the mean in the given interval.

Find the probability that at least one customer arrives in a particular one minute period.

The average is of 10 customers per hour(60 minutes), so for this case, [tex]\mu = \frac{10}{60} = \frac{1}{6}[/tex]

This is:

[tex]P(X \geq 1) = 1 - P(X = 0)[/tex]

In which

[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]

[tex]P(X = 0) = \frac{e^{-\frac{1}{6}}*(\frac{1}{6})^{0}}{(0)!} = 0.8465[/tex]

[tex]P(X \geq 1) = 1 - P(X = 0) = 1 - 0.8465 = 0.1535[/tex]

0.1535 = 15.35% probability that at least one customer arrives in a particular one minute period.

Probability that at least two customers arrive in a particular 4 minute period.

The average is of 10 customers per hour(60 minutes), so for this case, [tex]\mu = \frac{10*4}{60} = \frac{4}{6} = \frac{2}{3}[/tex]

This probability is:

[tex]P(X \geq 2) = 1 - P(X < 2)[/tex]

In which

[tex]P(X < 2) = P(X = 0) + P(X = 1)[/tex]

So

[tex]P(X = x) = \frac{e^{-\mu}*\mu^{x}}{(x)!}[/tex]

[tex]P(X = 0) = \frac{e^{-\frac{2}{3}}*(\frac{2}{3})^{0}}{(0)!} = 0.5134[/tex]

[tex]P(X = 1) = \frac{e^{-\frac{2}{3}}*(\frac{2}{3})^{1}}{(1)!} = 0.3423[/tex]

[tex]P(X < 2) = P(X = 0) + P(X = 1) = 0.5134 + 0.3423 = 0.8557[/tex]

[tex]P(X \geq 2) = 1 - P(X < 2) = 1 - 0.8557 = 0.1443[/tex]

0.1443 = 14.43% probability that at least two customers arrive in a particular 4 minute period.

Find the errors and correct the following mathematical sentences.​

Answers

Answer:

Step-by-step explanation:

18). 3x + 2 ÷ 3x = [tex]\frac{2}{3x}[/tex]

     Since, 3x + 2 ÷ 3x = 3x + [tex]\frac{2}{3x}[/tex]

      Therefore, right hand side of the equation will be = 3x + [tex]\frac{2}{3x}[/tex]

20). [tex]\frac{4x+3}{3}=x+1[/tex]

       Since, [tex]\frac{4x+3}{3}=\frac{4x}{3}+\frac{3}{3}[/tex]

                            = [tex]\frac{4}{3}x+1[/tex]

Therefore, right hand side of the equation should be [tex]\frac{4}{3}x+1[/tex].

I think the answer is nine but I’m not sure how to explain how I got my answer

Answers

Answer:

ur answer is right it is 9

Step-by-step explanation:

NOTE: divide the number 36 with 4 and u will get 9

GOOD JOB

Please mark as brainliest

Have a great day, be safe and healthy

Thank u  

XD

Identify each part in the expression below. will give brainliest

Answers

Answer:

smalls

Step-by-step explanation:

please help me i really need help please

Answers

Answer:

39°

Step-by-step explanation:

180-90-51=39

Answer:

its 39

Step-by-step explanation:

you know that a right triangle already has the angle 90 so 51 plus 90 equals 141

180-141=39

a car has a tire radius of 36 cm. a stone gets stuck how many times will it hit the ground when the car travels a distance of 1 kilometer. PLS show your work

Answers

Answer:

2777 times

Step-by-step explanation:

You can choose to convert however you like, as long as you divide when they have the same units.

1km = 1000m = 100000cm

36cm = 0.36m = 0.00036

Hence, 1000m÷0.36m = 2777.77777...

Round down to 2777

The stone will hit the ground approximately 442 times when the car travels a distance of 1 kilometer.

What is speed?

Speed is the measure of how quickly an object travels a certain distance. It is defined as the distance traveled by an object divided by the time taken to travel that distance.

The unit of speed is typically meters per second (m/s) or kilometers per hour (km/h), although other units may also be used depending on the context.

Assuming that the stone is stuck at the bottom of the tire and remains there, the stone will hit the ground every time the tire makes a complete rotation. The circumference of the tire is given by:

C = 2πr

where r is the radius of the tire. Substituting the given value of r = 36 cm, we get:

C = 2π(36) cm ≈ 226.19 cm

Therefore, the tire travels a distance of approximately 226.19 cm with each complete rotation. To find out how many times the stone will hit the ground when the car travels 1 kilometer, we need to convert 1 kilometer to centimeters:

1 kilometer = 1000 meters = 1000 x 100 centimeters = 100000 cm

Dividing the distance traveled by the circumference of the tire, we get:

100000 cm ÷ 226.19 cm/rotation ≈ 442.28 rotations

Therefore, the stone will hit the ground approximately 442 times when the car travels a distance of 1 kilometer.

To know more about speed follow

https://brainly.com/question/30965512

#SPJ2

On the Celsius scale, what does O represent?
a. the theoretical coldest possible temperature
b. an arbitrary number based on its inventor's freezer
c. the freezing point of water
d. the natural temperature of brine

Answers

Answer:

The answer is C.

Step-by-step explanation:

I just took the test on edg.

Answer:

c. freezing point of water

Step-by-step explanation:

did on edge 2021

Anyone know how to do this?

Answers

Answer:

They cannot form a triangle.

Step-by-step explanation:

A triangle can only be formed if the sum of the lengths of any 2 sides are greater than the 3rd side. 2 + 7 is less than 15, so this cannot be a triangle.

Four students were asked to write an expression which has terms that have a greatest common factor of ab. The expressions provided by the students are shown below.


Michelle
16 a + 3 b

Naomi
18 a b c minus 13 a b c

Olivia
20 a b minus 14 a b c

Peyton
15 a b c + 14 a b

Which student wrote the correct expression?
Michelle
Naomi
Olivia
Peyton

Answers

Answer:

D.) Peyton

Step-by-step explanation:

If m is any integer, then gcd(a + m⋅b, b) = gcd(a, b). If m is a positive common divisor of a and b, then gcd(a/m, b/m) = gcd(a, b)/m. The GCD is a multiplicative function in the following sense: if a1 and a2 are relatively prime, then gcd(a1⋅a2, b) = gcd(a1, b)⋅gcd(a2, b). Factoring out the GCF is the first step in many factoring problems. Step 1: Determine the greatest common factor of the given terms. The greatest common factor or GCF is the largest factor that all terms have in common. Step 2: Factor out (or divide out) the greatest common factor from each term.

Answer:

peyton is correct because she is the only one with ab even in her awnser

Step-by-step explanation:

if you subtract 17 from my number and multiply the difference by -6 the results is -138 what is Sarah's number

Answers

Answer:

40

Step-by-step explanation:

let the unknown be y (x is used as times(multiplication) )

(y-17)x-6=-138

add /-6 to both sides

y-17x-6/-6=-138/-6

y-17=23

make y independent/add 17 to both sides

y-17+17=23+17

y=40

or in an easier way

-138/-6 =23

23+17=40

simply reversing the question to get the answer

An article summarized data from a survey of a random sample of a certain number of U.S. adults with investments of $10,000 or more. Based on the survey data, it was estimated that 38.5% of investors manage their investments by doing everything they possibly can online. But the authors of the article also noted that there was quite a difference between younger investors (ages 18 to 49) and older investors (ages 50 and older). For younger investors, 63% said they do everything they possibly can online, while the percentage for older investors was 28%.
A) Use the given information to estimate P(O), POLY), and P(OF) where 0 = event that a randomly selected Investor does everything possible online, Y = event that a randomly selected Investor is age 18 to 49, and F = event that a randomly selected investor is 50 years old or older.
B) Suppose that 40% of investors are between the ages of 18 and 49. Use the probabilities from part (a) and the estimate P(Y) = 0.40 to construct a hypothetical 1,000 table.
Y F Total
0
Not 0
Total 1,000
Use information in the table to calculate P(YO).
Which of the following sentences properly interprets this value in the context of this exercise?
A. The probability, given that a randomly selected investor is age 50 or older, that the investor does everything possible online is PLYO).
B. The probability, given that a randomly selected investor is age 18 to 49, that the investor does everything possible online is P(710).
C. The probability, given that a randomly selected investor does everything possible online, that the investor is age 50 or older is P(YO).
D. The probability, given that a randomly selected investor does everything possible online, that the investor is age 18 to 49 is Ayo).
E. The probability that the selected investor is age 18 to 49 is P(YO).

Answers

Answer:

Based On The Survey Data, It Was Estimated That 36% Of Investors Manage Their Investments By Doing Everything They Possibly Can Online. But The Authors Of The Article Also Noted That There Was A Quite A Difference Between . ... random sample of a certain number of U.S. adults with investments of $10,000 or more.

Step-by-step explanation:

Please make me brainiest

Use the quotient rule to simplify the expression. Write the expression with positive exponents.

Answers

Answer:

[tex]\displaystyle 4^{4}[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Exponential Rule [Dividing]:                                                                           [tex]\displaystyle \frac{b^m}{b^n} = b^{m - n}[/tex]

Step-by-step explanation:

Step 1: Define

[tex]\displaystyle \frac{4^{-4}}{4^{-8}}[/tex]

Step 2: Rewrite

Exponential Rule [Dividing]:                                                                             [tex]\displaystyle 4^{-4 - (-8)}[/tex]Subtract Exponents:                                                                                         [tex]\displaystyle 4^{4}[/tex]

find 2 numbers if their sum is 3 and their difference is 21

Answers

Answer:

the 2 numbers are 12 and -9

Step-by-step explanation:

x + y = 3

x - y = 21    Adding:-

2x = 24

x = 12

y = 3 - x = 3  12 = -9

Answer the 2 numbers are 12 and -9

Answer:

The numbers are 12 and - 9.

Step-by-step explanation:

12 - 9 = 3

- 9 to 12 is 21

A mother bottlenose ate about 220 pounds of food in one week. About how much food did she eat in a day?

She ate about
pounds of food in a day.

Answers

Answer: 31.42
if you get it wrong im so sorry

I don’t understand this problem can someone please help !

Answers

Answer:

Step-by-step explanation:

tan 7 = 4.4/x

x = 4.4/ tan 7

x= 35.8 ft

Can someone help me? I'll reward points and brainalist

Answers

Answer: I think it D for number 2 and b for number 3

Step-by-step explanation:

Answer:

1) B. 2) A.

Step-by-step explanation:

For number 1, put 30 into the equation. (3•30-5). When solved, your answer is 85, the same as the top. They are vertical angles which makes the two equal.

For number 2, I tried to draw the triangles on paper and the one that wasn't possible was A. The side 6 would be too long to connect to 4 or 3.

7% interest on a loan of $800 for a year. how much will you receive?

Answers

Answer:

$56

Step-by-step explanation:

Here's an easy way to figure out this and any percentage question. One per cent (1 dollar out of $100) of $800 would be $8. So, if the man received 7 per cent out of $800, then just multiply $8 times 7, which is 56...so $56!

Hope it helps

Please mark me as the brainliest

Thank you

Step-by-step explanation:

Here's an easy way to figure out this and any percentage question. One per cent (1 dollar out of $100) of $800 would be $8. So, if the man received 7 per cent out of $800, then just multiply $8 times 7, which is 56...so $56

Each bracelet needs 7_2/3 inches of string. If Samantha is making 4 bracelets, how many inches of string does she need?

Answers

Answer:

30.667 inches of string

Step-by-step explanation:

In an arithmetic sequence (Sn=n^2 -2n) .USE formula (Tn=Sn-Sn-1) to determine Tn​

Answers

Answer:

Tn=-1

Step-by-step explanation:

Please mark as brainliest

The physical plant at the main campus of a large state university receives daily requests to replace fluorescent light bulbs. The distribution of the number of daily requests is bell-shaped and has a mean of 47 and a standard deviation of 7. Using the empirical rule (as presented in the book), what is the approximate percentage of lightbulb replacement requests numbering between 47 and 68

Answers

Answer:

The approximate percentage of lightbulb replacement requests numbering between 47 and 68 is 49.85%.

Step-by-step explanation:

The Empirical Rule states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.

Approximately 95% of the measures are within 2 standard deviations of the mean.

Approximately 99.7% of the measures are within 3 standard deviations of the mean.

In this problem, we have that:

Mean of 47

Standard deviation of 7

What is the approximate percentage of lightbulb replacement requests numbering between 47 and 68?

The normal distribution is symmetric, which means that 50% of the measures are below the mean and 50% of the above.

Between 47 and 68:

68 = 47 + 7*3

So 68 is three standard deviations of the mean.

Of the 50% above the mean, approximately 99.7% are between the mean of 47 and 3 standard deviations above the mean, which is 68. So

0.5*0.997 = 0.4985

0.4985*100 = 49.85%

The approximate percentage of lightbulb replacement requests numbering between 47 and 68 is 49.85%.

10. Find the volume of the prism.
3 ft
7 ft
2 ft

Answers

Three times two is 6, times 7 is 42. That’s the answer.

Find the circumference of the circle.

Answers

Answer:

25.12ft

Step-by-step explanation:

C=2πr

C = 2(3.14)(4)

C = 25.12ft

Answer:

25.12

Step-by-step explanation:

The circumference of a circle is equal to [tex]2\pi r[/tex]. So, to find the circumference plug in 4 for r and solve the expression. [tex]2\pi 4[/tex], where [tex]\pi[/tex] equals 3.14 is 25.12.

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Your friend finds the persent increase from 18 to 26. Is your friendcorrect? Explain your reasoning.26 - 180.31 = 31%26 Solve the following systems system.A) 2y = x + 1 -2x y = 7B) 3x - 2y = 8 2x - 2y = 5C) 6x - 4y = 54 -9x + 2y = -69 Which kingdom(s) contain only unicellular prokaryotes? (Select all that apply.) If using the method of completing the square to solve the quadratic equationx2 + 2x 31 = 0, which number would have to be added to "complete thesquare"? The formula for the volume of a cone is V = 1/3 r^2 h. Which part of the formula represents the area of the base? The length of a photograph is 4 in. greater than its width. The area of the photograph is52. in? What are the dimensions of the photograph? A restaurant customer left 1.65 as a tip the tax was 7% and the tip was 15% of the after tax cost which information is not needed to compute the bill after tax and tip what was the total billA.the customer left 1.65 as a tipB.the tax was 7%C.the customer left a 15% tipD.all of this information is needed to solve the problem ABC - DEF. What sequence of transformations will move ABC onto DEF?Please help me!! Help me with this. Ill give brainliest Part CVertical angles are the angles opposite each other when two lines intersect. Which angles are vertical to the given angles? Complete the table. If Alaska and California are ignored, the list of 10 largest U.S. earthquakes shows ____________. Multiple Choice only events centered in Washington, Oregon, Hawaii, and Nevada 10 events affecting at least 10 different states 8 events centered in western states and 2 events centered in Missouri only events centered in Washington, Montana, and Hawaii only events centered in Washington and Oregon Which sentence from the selection bestestablishes how the author's motherapproaches her situation?in the book see it through ASAP PLEASE! 5) Today's temperature is 10 degrees. Yesterday's temperature was -3. What isthe range of the two temperatures? * Explain how the following events will affect the demand and supply curves for large SUVs. In each case explain whether the demand and supply curves will (i) move to the left; (ii) move to the right; or (iii) not move. b. The price of gasoline increases i. (3 points) How will this affect the demand curve for the good listed above Which 2 groups surrounded the Romans in the beginning? If m represents the number of minutes of exercise, and c represents the number of calories burned during exercise, which of the variables m and c is dependent and which is independent? Which pair best matches a type of land cover with an appropriate land use? A. Forestland -> Growing crops B. Urban land -> Growing crops C. Pastureland -> Grazing livestock D. Developed land -> Grazing livestock can someone Korean please translate this :^ Triangle congruence and similarly (picture included) SAS, ASA, SSS, or AAS? Find the product.(8-3z)(8+3z)