It took Davina 45 minutes to clean her room. How many seconds did it take her

Answers

Answer 1

Answer:

2700

Step-by-step explanation:

i think


Related Questions

give example of a monotone subsequence of the sequence Sn=cos(n.π/3)

Answers

A monotone subsequence is a subsequence that is either increasing or decreasing, which we define as follows:

A sequence (S) is increasing if [tex]S_n \geq S_m[/tex] whenever n>m.A sequence (S) is decreasing if [tex]S_n \leq S_m[/tex] whenever n>m.

Here, we can create a subsequence by taking every sixth term:

• When n = 6, [tex]S_n = \cos(6\pi /3) = \cos(2\pi) = 1[/tex]

• When n = 12, [tex]S_n = \cos(12 \pi /3) = \cos(4\pi) = 1[/tex],

and so on, and every such element will have a value of 1. This is a monotone subsequence.

If u can help me with this and have any social media please let me know ;-;

Answers

Answer:

I can't

Step-by-step explanation: I have every social

can someone please help me!!

Answers

Answer:

its number 4 or row

Step-by-step explanation:

Which value of x makes the equation 0.75(x + 20) = 2 + 0.5(x 2) true?

Answers

Answer:

[tex]x = -56[/tex]

Step-by-step explanation:

Given

[tex]0.75(x + 20) = 2 + 0.5(x - 2)[/tex]

Required

Find x

[tex]0.75(x + 20) = 2 + 0.5(x - 2)[/tex]

Open brackets

[tex]0.75x + 15 = 2 + 0.5x - 1[/tex]

Collect Like Terms

[tex]0.75x - 0.5x = 2 - 1 - 15[/tex]

[tex]0.25x = -14[/tex]

Solve for x

[tex]x = -\frac{14}{0.25}[/tex]

[tex]x = -56[/tex]

The following is an example of what type of sequence? 3, 11, 19, 27, 35...

A: Geometric
B: Ratio
C: Ratio
D: Difference ​

Answers

Answer:

You have a series that increases by 8 Therefore it Ar^n-1So its a geomtric sequence

where do i graph?
please send picture of your own for me to copy

Answers

Answer:

Step-by-step explanation:

Compound inequality has been given as,

12(2x - 10) + 24 ≥ 48 Or 6x + 15 - 9x ≥ 6

By simplifying it further,

12(2x - 10) + 24 ≥ 48

[tex]\frac{12(2x - 10)}{12}+\frac{24}{12}\geq \frac{48}{12}[/tex]

(2x - 10) + 2 ≥ 4

(2x - 10) + 2 - 2 ≥ 4 - 2

2x - 10 ≥ 2

2x - 10 + 10 ≥ 2 + 10

2x ≥ 12

[tex]\frac{2x}{2}\geq \frac{12}{2}[/tex]

x ≥ 6

6x + 15 - 9x ≥ 6

(6x - 9x) + 15 ≥ 6

(-3x) + 15 ≥ 6

-3x + 15 - 15 ≥ 6 - 15

-3x ≥ -9

3x ≤ 9

x ≤ 3

We have to plot the inequality on a number line

x ≥ 6 Or x ≤ 3

Determine if the correlation between the two given variables is likely to be positive or negative, or if they are not likely to display a linear relationship. The retail price of a particular smartphone and the number of units sold at that price

Answers

Answer:

no correlation

Step-by-step explanation:

The price of the smartphone is fixed beforehand, therefore price does not depend upon the number of units sold.

Hence, there is no correlation between the two given variables.

Hence, no correlation would be the answer.

Skylar went on a road trip to New York. On the first day of her trip. she drove 656 miles in 8 hours. What unit rate did she travel in miles per hour?

Answers

656/8 = 82 mph hope this helps !

12. What is the slope of line with the points (2,2) and (1,5)?

Answers

Answer:

- 3

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

[tex]m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} \\[/tex]

From the question we have

[tex]m = \frac{5 - 2}{1 - 2} = - \frac{3}{1} = - 3 \\ [/tex]

We have the final answer as

- 3

Hope this helps you

Select the correct location on the number line.
Sean had $45.50 in his account. He bought books worth $3 more than what he had in his account. Graph the point that represents the balance of Sean’s account.
15 points

Answers

Answer:

-3

Step-by-step explanation:

12. (03.03 MC) The equation below represents Function A and the graph represents Function B: Function A f(x) = 6x - 1 Function B 4 2 + 1 -2 1 -1 -2 -4 t -5​

Answers

Answer:

Ans : =  0

Step-by-step explanation:

Answer:

[tex]\textsf{Slope of Function A = 2 x Slope of Function B}[/tex]

Step-by-step explanation:

We know that Function A is given by:

[tex]f(x)=6x-1[/tex]

And we are given the graph of Function B.

And we are asked to compare the slopes of the two functions.

So, we will determine the slope of each.

For Function A, the slope is simply the coefficient of our independent variable x.

Since 6 is our coefficient, the slope of Function A is 6.

For Function B, we will utilize the slope formula, given by:

[tex]\displaystyle m=\frac{y_2-y_1}{x_2-x_1}[/tex]

We will need any two points from our graph. Let’s use (0, 1) and (-1, -2).

So, we will let (0, 1) be (x₁, y₁) and (-1, -2) be (x₂, y₂). Substitute appropriately:

[tex]\displaystyle m=\frac{-2-1}{-1-0}[/tex]

Evaluate:

[tex]\displaystyle m=\frac{-3}{-1}=3[/tex]

So, the slope of Function B is 3.

Therefore, the slope of Function A is twice the slope of function B.

So, we can write that:

[tex]\textsf{Slope of Function A = 2 x Slope of Function B}[/tex]

SPARK in Dallas requires a school to send 2 adults for every 20 students who visit for a field trip. If a school send 13 adults, how many students can go
on the trip

Answers

130 would be one trip. if you divide 13 by 2 it is 6.5 and then multiply that by 20 you get 130. please mark me brainliest. have a great day and good luck with school:)

Please answer this thanks

Answers

Answer:

$66.24

Step-by-step explanation:

TIP:

55.20 x 0.15 = 8.28

TAX:

55.20 x 0.05 = 2.76

Answer:

55.20 + 8.28 + 2.76 = 66.24

(Also always tip your server 20% unless they were bad)

Explain how Sergio use three lengths of a ribbon 2 ½ feet long to wrap packages. How many feet of ribbon did he us

Answers

Answer:

rate this 5 stars or your gay

Step-by-step explanation:

Just do it

6= 2(y+2). Helppppppppppppppp

Answers

Answer:

y=1

Step-by-step explanation:

6=2y+4

2=2y

y=1

Leah and Dan are trying to prove that the triangles below are congruent. Leah says they are congruent by the AAS congruence criteria, while Dan says they are congruent by the ASA congruence criteria. Who is correct? Explain.

Answers

Answer: Leah is correct, it’s AAS

Explanation: angle C = angle N
angle B = angle M
AB = LM
ABC = LMN, alternate interior angles of parallel lines are congruent

McAllister et al. (2012) compared varsity football and hockey players with varsity athletes from noncontact sports to determine whether exposure to head impacts during one season have an effect on cognitive performance. In the study, tests of new learning performance were significantly poorer for the contact sport athletes compared to the noncontact sport athletes. The following table presents data similar to the results obtained in the study.
Noncontact Athletes:
10, 8, 7, 9, 13, 7, 6, 12
Contact Athletes:
7, 4, 9, 3, 7, 6, 10, 2
a. Are the test scores significantly lower for the contact sport athletes than for the noncontact athletes? Use a one-tailed test with \alpha=.05
t-critical=
t=
b. Compute the value of (percentage of variance accounted for) for these data.
r^2= a. 0.123, b. 0.239, c. 0.138, d. 0.264

Answers

Answer:

[tex]t _{critical} = 1.760[/tex]

t = 2.2450

d. 0.264

Step-by-step explanation:

The null hypothesis is:

[tex]H_o: \mu_1 - \mu_2 = 0[/tex]

Alternative hypothesis;

[tex]H_a : \mu_1 - \mu_2 > 0\\[/tex]

The pooled variance t-Test would have been determined if the population variance are the same.

[tex]S_p^2 = \dfrac{(n_1-1)S_1^2+(n_2-1)S^2_2}{(n_1-1)+(n_2-1)}[/tex]

[tex]S_p^2 = \dfrac{(8-1)2.507^2+(8-1)2.8282^2}{(8-1)+(8-1)}[/tex]

[tex]S_p^2 = 7.14[/tex]

The t-test statistics can be computed as:

[tex]t= \dfrac{(x_1-x_2)-(\mu_1 - \mu_2)}{\sqrt{Sp^2 ( \dfrac{1}{n} +\dfrac{1}{n_2})}}[/tex]

[tex]t= \dfrac{(9-6)-0}{\sqrt{7.14 ( \dfrac{1}{8} +\dfrac{1}{8})}}[/tex]

[tex]t= \dfrac{3}{1.336}[/tex]

t = 2.2450

Degree of freedom [tex]df = (n_1 -1) + ( n_2 +1 )[/tex]

df = (8-1)+(8-1)

df = 7 + 7

df = 14

At df = 14 and ∝ = 0.05;

[tex]t _{critical} = 1.760[/tex]

Decision Rule: To reject the null hypothesis if the t-test is greater than the critical value.

Conclusion: We reject [tex]H_o[/tex] and there is sufficient evidence to conclude that the test scores for contact address s less than Noncontact athletes.

To calculate r²

The percentage of the variance is;

[tex]r^2 = \dfrac{t^2}{t^2 + df}[/tex]

[tex]r^2 = \dfrac{2.2450^2}{2.2450^2 + 14}[/tex]

[tex]r^2 = \dfrac{5.040025}{5.040025+ 14}[/tex]

[tex]r^2 = 0.2647[/tex]

Can you help me explain this answer please I need it really quick

Answers

It is reasonable because that’s not that much money I’d you think about it


32 A bicycle seller found that if he sells
a bicycle for L.E. 1656 , his loss will be 8 %
Find the cost price of the bicycle and find
the selling price that makes him get a profit
of 12 %​

Answers

Answer:

L.E. 1,800L.E. 2,016

Step-by-step explanation:

1. Cost price of bike.

Let cost price be x;

x * (100% - 8%) = 1,656

0.92x = 1,656

x = 1,656/0.92

x = L.E. 1,800

2. Selling price for 12% profit;

= 1,800 * ( 1 + 12%)

= L.E. ‭2,016‬

a map has a scale of 1.5 inches = 9 miles. On the map, two towns are 4 inches apart. What is the distance, in miles between the two towns?

Answers

Answer:

36

Step-by-step explanation:

i multpliy 9x4=36

1.15x10^-5 in standard form

Answers

Step-by-step explanation:

= 1.15 / 10⁵

115/10000000

0.0000115

is the correct answer

PLEASE HELP QUICK! 20 POINts AND CORRECT

Answers

We can conclude that Collin will have £3691.41 in his account after 10 years.

Answer:

Collin will have  3691

Step-by-step explanation:

please help????????​

Answers

Answer:

k=140

Step-by-step explanation:

64+76=140

180-140=40

180-40=140

what are the ratios from least to greatest 5:8, 11:16, 18:32

Answers

Answer:

Least: 18:32

Middle: 5:8

Greatest: 11:16

Determine the value of x and y

Answers

Answer:

x=65, y=60

Step-by-step explanation:

x=65--->corrosponding angles with the triangle

x+y+55=180--->linear pair

(65)+y+55=180

y=60

Answer:

x=65 y=60

Step-by-step explanation:

Well, divide the hypotenuse between two triangles added onto the square root of the divisions between Mars and Pluto and we can derive the positive neutrons of the seventeenth quadratic of the Einstein constant equation.

or, know that x=65 due to it being on a parallel line to it, then due to their being 360 degrees around a point, 65+65+55+55=240, 360-240=120, then divide that by two to get it at y.

Which expression is equivalent to 6(2x + 4)

Answers

Answer:

12x+24

Step-by-step explanation:

by multiplying the number 6 into the term inside of the bracket gives 12x + 24

at a baseball game 70% of the people in the crowd purchase popcorn. There were 250 people in the crowd. How many people purchased popcorn?

Answers

12 is the answer so i can be that

Answer:
35

Step-by-step explanation:
The answer is 35 because 250 divided 7 is 35

Please help, will give brainliest. Evaluate each expression for the given value of the variable(s). And Explain, Please.


3d - 4

d = 1.2

Answers

Answer:

-0.4

Step-by-step explanation:

3d-4 where d=1.2

substitute 1.2 for d and solve

3(1.2)-4

3.6-4= -0.4

pls helpppppppppppp​

Answers

-0.25 don’t know but I try

identify the slope and y-intercept of the line given below y=5x-1

Answers

Answer:

Slope: 5

Y-intercept: -1

Step-by-step explanation:

This equation is written in slope-intercept form, y=mx+b, where m is the slope and b is the y-intercept.

From this, we can see that 5 is m and -1 is b.

Therefore, the slope is 5 and the y-intercept is -1

Hope this helps! :)

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Which statement illustrates how progress in engineering has affected the natural environment? (O A. Engineers continue to make design improvements to solar panels, making them ever more efficient in providing electricity. O B. The development of new solar panel technology drives the development of battery technology. O C. Engineers have developed solar energy technology that reduces the need for other sources of energy that can pollute the atmosphere. ( D. As solar energy technology continues to improve, it is becoming a more attractive source of energy than sources that use fossil fuels. A billiard ball bangs against a side bumper, giving the ball a speed of 5 m/s. If theball has a mass of 0.15 kg, what is the ball's kinetic energy in joules? 9. If one bulb of Christmas lights, connected in series is burned out, what willhappen to the other light bulbs?A. All other bulbs will no longer work.B. All other bulbs will continue to lightC. The brightness of the bulbs will increase.D. The brightness of the bulbs will decrease.10. Three light bulbs with resistances 2000 , 1600 , and 800 are connected inseries respectively. Which one has the highest brightness when the circuit isplugged to a 220 V voltage source?A. 800 2B. 1600 2C. 2000 2D. none of the above These types of questions are why my moderator application was never accepted. SOLVE FOR x:4x^2+6x=10 I will mark brainliest!!!!! A current of 1.5A was passed through two electrolytes arranged in series for 10 minutes and 2.16 g of silver deposited on the cathode of the first cell. (Atomic wt. of Ag=108 ,Ni =59) .Calculate a) The quantity of electricity that passes through the two cells. b) The amount of Nickel deposited on the cathode of the second cell containing Nickel(II) nitrate, Ni(NO3)2 ? A hotel puts out 1 apple for every 3 orange as the fruit for their breakfast buffet. Write a ratio of apples compared to all the fruit. * A person bought some cosmetics from wholesale market at the rate of Rs 360 per dozen he sells it at Rs 80 a pair find the gain percent solve step by step Write a C++ program that tests whether the array has four consecutive numbers with the same values. bool isConsecutive(int values[], int size) In the main() program you should prompt the user to enter a series of integers and display if the series contains four consecutive numbers with the same value. Your program should first prompt the user for the number of integers in the list or number of values in the series. Assume the maximum array size is 20. No global variables may be used Use a function prototype for said function The function can not do any cin or cout The main() function will do all the cin and cout You may assume the list contains positive integers only Sample runs (bolded text is output) : Enter the number of values: 6 Enter a value: 3 Enter a value: 4 Enter a value: 5 Enter a value: 5 Enter a value: 5 Enter a value: 5 The list has consecutive four numbers! Enter the number of values: 9 Enter a value: 3 Enter a value: 4 Enter a value: 5 Enter a value: 50 Enter a value: 5 Enter a value: 6 Enter a value: 5 Enter a value: 5 Enter a value: 6 The list has no consecutive fours numbers! Which of the following is a medicine that stimulates the body immune response to make disease fighting molecules to attack the specific pathogen Hot air balloon ( look at pic) 8n^2-17I NEED AN ANSWER A plumber charges a flat fee of $50 plus an additional $20 per hour.a) Write and equation in slope-intercept form to represent the total cost the plumber will chargeb) How much will it cost for the plumber to work for 4 hoursc) how many hours must the plumber work to obtain $180? OA. Positively charged particles are attracted to negatively chargedparticles.OB. Negative and positive electric charges build up in different regionsof a clOudC. Electrons flow from an outlet into a toaster, causing it to heat aslice of bread.OD. A person rubs a shoe on a rug, causing extra electrons to betransferred to the shoe. Tanya is at a fair and has $30 to spend on x number of rides and y number of games. Each ride is $2 and each game is $3. The equation 2x+3y=30 represents this scenario. If Tanya does not play any games, how many rides can she go on? If The density of this stainless steel is7.85 g/cm3,specific heatis 0.5 J/g.K, melting pointis 1673K, heat of fusion s0.260J/kg. How much energy is required to re-melt this tube completely from room temperature HELP1) A 400g sample of alcohol (c = 2.43 J/gC) at 16C is mixed with 400gof water (c = 4.19 J/gC) at 85C. What is the final temperature of themixture? help me :/ please i need this grade . Whoever answers gets brainlist!