I need help with my math homework

I Need Help With My Math Homework

Answers

Answer 1

The number of hours until the city is locked down is given as follows:

229 hours.

How to obtain the number of hours until the city is locked down?

The function for this problem is defined as follows:

p(t) = 0.004t³ + 0.001t + 1.

For which the variables are given as follows:

t is the time in days.p(t) is the number of people infected.

The rate of change of the infection in 72 hours = 3 days is given by:

p'(3).

The derivative of the function is given as follows:

p'(t) = 0.012t² + 0.001.

After the instantaneous rate after 3 days is given as follows:

p'(3) = 0.012(3)² + 0.001

p'(3) = 0.109.

The city will lock down when p'(t) = 10 x p'(3) = 1.09 that is:

0.012t² + 0.001 = 1.09.

0.012t² + 0.001 - 1.09 = 0.

Hence the time in days is obtained as follows:

0.012t² = 1.089

t² = 1.089/0.012

t² = 90.75

[tex]t = \sqrt{90.75}[/tex]

t = 9.53 days.

Each day is composed by 24 hours, hence the time in hours is obtained as follows:

9.53 x 24 = 229 hours. (rounding to the nearest whole integer).

More can be learned about functions at https://brainly.com/question/24808124

#SPJ1


Related Questions

Chris needs to recover his drumhead. The drumhead's circumference is 40.82 inches. What is the area of the drumhead that needs to be covered? 1. 6.5 to the power of 2 (inches) 2. 132.67 to the power of 2 (inches) 3. 128.17 to the power of 2 (inches) 4. 64.09 to the power of 2 (inches)

Answers

Answer: 132.67 to the power of 2 (inches)

Step-by-step explanation:

The circumference of a circle is given as 2πr. Therefore, in his case,

2πr = 40.82

2 × 3.142 × r = 40.82

6.284r = 40.82

radius = 40.82/6.284

radius = 6.5 inches

Area will now be:

= πr²

= 3.142 × 6.5²

= 3.142 × 42.25

= 132.75 inches²

Therefore, the closest answer will be 132.67 to the power of 2 (inches).

What's the slope of the line

Answers

Answer:

-1/2  

Step-by-step explanation:

first point is 1,-4

second point is 5,-6

Slope is  y2-y1/x2-x1

-6 - -4 / 5 - 1

-2/ 4

-1/2

need help solving..........

Answers

Answer:

Angle A always equal angles T

the first answer

Answer: sry i dont know

Step-by-step explanation:

Which point satisfies the system of equations y=3x-2 and y=-2x+3?
8
7
B
6
C
5
4
D
9 8 7 6 5 4 3 -2 -1
1
2 3 4 5 6 7
B
9x
-2
-3
4
-5
-5
-7
-9
ΟΑ. Α
ОВ.
B
Occ
ODD

Answers

Answer:

27633883532

2732937293739

839364923274693

93730347395393649364

027402649249364

026393473849337

92739262926382

193

19632963286392

92539253925292

9279253285292

2283792

88248935392

926263925392

7363854276393

233

Suppose 65% of jurors come to a just decision. In a jury of ten people, what is the probability more than half come to a just decision? 0.7515 0.2485 0.0949 0.8374 0.9051

Answers

Answer: 0.7515

Step-by-step explanation:

Binomial probability formula:

[tex]P(X=x)=\ ^nC_xp^x(1-p)^{n-x}[/tex] , where

n = total number of trials.

p= probability of success in each trial.

x= Number of successes.

Let x be a binomial variable that represents the number of jurors come to just decision.

p= 0.65

n= 10

Required probability= [tex]P(x>5)=P(x=6)+P(x=7)+P(x=8)+P(x=9)+P(x=10)\\\\ =\ ^{10}C_6(0.65)^6(0.35)^4+ ^{10}C_7(0.65)^7(0.35)^3+ ^{10}C_8(0.65)^8(0.35)^2+ ^{10}C_9(0.65)^9(0.35)^1+^{10}C_{10}(0.65)^{10}(0.35)^0\\\\=0.75149550912\approx0.7515[/tex]

Hence, the probability more than half come to a just decision = 0.7515

Escribe 2 ejemplos que contengan universo, población y muestra. Pueden ser de artículos de tu agrado como: celulares, motos, consolas de juegos, etc.

Answers

Responder:

Teléfonos móviles :

Universo - -> {todos los teléfonos móviles} - unidad experimental

Población - -> {Samsung, tecno, LG, iPhone, Motorola, Huawei, .....} - -> valores variables de unidades experimentales

Muestra - - -> {Samsung, tecno, iPhone} - selección aleatoria de datos de población

Países europeos :

Universo - -> {todos europeos} - unidad experimental

Población - -> {Inglaterra, Noruega, Turquía, Italia, Francia, Holanda, .....} - -> valores variables de todos los países europeos

Muestra - - -> {España, Alemania, Polonia} - selección aleatoria a partir de datos de población

Explicación paso a paso:

Haciendo distinción entre universo, población y muestra. Univerae y la población se describen como sinónimos en algún texto. Sin embargo, otros textos estadísticos hicieron diferencias sutiles entre ambos; con el universo que se dice que contiene todas las unidades experimentales. ; siendo población el conjunto de valores de la variable. Sin embargo, podemos asumir de manera concluyente que ambos son sinónimos, ya que de ellos se extrae una muestra que es un subconjunto de un conjunto de datos más grande (población).

Five decreased by twice a number

Answers

Answer:

5-2x

Step-by-step explanation:

could u help me that would be really nice i have been going trow a hard time

Answers

Answer:

38

Step-by-step explanation:

38 / -2 = -19

-19 + 7 = -12

Salma, joe, and alan sent a total of 106 text messages during the weekend, salma sent 9 fewer messages than alan. Joe sent 3 times as many messages as alan. How many messages did they each send?

Answers

Answer:

Salma, joe, and alan sent 14, 69, and 23 text messages respectively

Step-by-step explanation:

Given that Salma, joe, and alan sent a total of 106 text messages during the weekend, it means that

s + j + a = 106 where s, j, and a are the number of messages sent by Salma, joe, and alan respectively

Given salma sent 9 fewer messages than alan

s = a - 9

Joe sent 3 times as many messages as alan

j = 3a

hence

a - 9 + 3a + a = 106

5a - 9 = 106

5a = 106 + 9

5a = 115

Divide both sides by 5

a = 115/5

= 23

s = 23 - 9

= 14

j = 3* 23

= 69

Which side of DEF is the longest?

A. DE
B. EF
C. DF
D. Cannot be determined

Answers

[tex] \huge {\tt{Answer:}} [/tex]

A. DE

Option (A) DE side of the triangle DEF is the longest side.

What is a triangle?

A triangle is a flat geometric figure that has three sides and three angles. The sum of the interior angles of a triangle is equal to 180°. The exterior angles sum up to 360°.

For the given situation,

The diagram shows the triangle with angles ∠D = 65°, ∠E = 42°.

The sum of the interior angles of a triangle is equal to 180°.

⇒ [tex]\angle D+\angle E+\angle F=180[/tex]

⇒ [tex]65+42+ \angle F=180[/tex]

⇒ [tex]\angle F=180-107[/tex]

⇒ [tex]\angle F=73[/tex]

The side corresponding to the ∠D is EF,  ∠E is DF,  ∠F is DE

The angle which is greater has the longest side.

⇒ [tex]\angle F > \angle D > \angle E[/tex]

⇒ [tex]DE > EF > DF[/tex]

Thus the side DE has the longest length.

Hence we can conclude that option (A) DE side of the triangle DEF is the longest side.

Learn more about triangles here  

https://brainly.com/question/14759217

#SPJ2

Is 30% of 70 is the same as 3/7 of 70?

Answers

Answer:

No

Step-by-step explanation:

30% is the same as 3/10

3/7 is about the same as 43%  

There is a difference among the percentage so no it's not correct

Yes, the value 30% of 70 is the same as 3/7 of 70.

What is an expression?

Expression in maths is defined as the relation of numbers variables and functions by using mathematical signs like addition, subtraction, multiplication, and division.

To show this mathematically, we can start by calculating 30% of 70:

30% of 70 = (30/100) x 70

= 0.3 x 70

= 21

Now, let's calculate 3/7 of 70:

3/7 of 70 = (3/7) x 70

= 30/100 x 70

= 0.3 x 70

= 21

As we can see, both calculations give us the same result of 21. Therefore, 30% of 70 is the same as 3/7 of 70.

To know more about an expression follow

https://brainly.com/question/28108181

#SPJ2

Drag each number to the correct location on the table. Classify the real numbers as rational or irrational numbers. Please Help I need the answer today!

Answers

Answer:

did you ever figure out what the answer was it was because  working on this and don't know what to do

Step-by-step explanation:

Answer:

Rational Numbers: √400 | -5/250 | 5.012121212...

Irrational Numbers: √1000 | ^3√30 | 0.01562138411...

Which of the followers scatter plots could have a trend line with an equation of 2x+5

Answers

C
Hope this really helps you

Answer:

answer is c   because   of the y intercept  . . so the y intercept is postive and goes through the orgin

Step-by-step explanation:

please help solve this but don't spam ( Transposition method )​

Answers

Answer:

x = -⁷/9

Step-by-step explanation:

[tex] \frac{9x - 8}{3} = \frac{9x - 3}{2} [/tex]

Multiply both sides by 3

[tex] \frac{9x - 8}{3}*3 = \frac{9x - 3}{2}*3 [/tex]

[tex] 9x - 8 = \frac{3(9x - 3)}{2} [/tex]

Multiply both sides by 2

[tex] 2(9x - 8) = \frac{3(9x - 3)}{2}*2 [/tex]

[tex] 2(9x - 8) = 3(9x - 3) [/tex]

[tex] 18x - 16 = 27x - 9 [/tex]

Subtract 27 from each side

18x - 16 - 27x = 27x - 9 - 27x

-9x - 16 = -9

Add 16 to both sides

-9x - 16 + 16 = -9 + 16

-9x = 7

Divide both sides by -9

-9x/-9 = 7/-9

x = -⁷/9

Solve the triangle. Round decimal answers to the nearest tenth. ​

Answers

Answer:

x = 5.7           y = 9.4

m∠H = 31°

Step-by-step explanation:

cos of an angle = adjacent side/hypotenuse

and sine of an angle = opposite side/hypotenuse

cos 59 = x/11          and sin 59 = y/11

11 cos 59 = x                  11 sin 59 = y

x = 5.7                             y = 9.4

m∠H = 90 - 59 = 31°

You need  to memorize the definitions of all the trig functions and then these types of problems will be easy for you.

[tex]x=5.7[/tex], [tex]y=9.4[/tex]  and ∠[tex]H[/tex][tex]=31[/tex]° is the solution of the triangle.

What is trigonometric ratio?

Trigonometric ratios are the ratios of the length of sides of a triangle. These ratios in trigonometry relate the ratio of sides of a right triangle to the respective angle.

The basic trigonometric ratios formulas are given below :

sin θ = Perpendicular/Hypotenuse

cos θ = Base/Hypotenuse

tan θ = Perpendicular/Base

sec θ = Hypotenuse/Base

cosec θ = Hypotenuse/Perpendicular

cot θ = Base/Perpendicular

What is the sum of angle of triangle?

The sum of angles of a triangle equals the straight angle (180 degrees, π radians, two right angles, or a half-turn)

According to question,

In Δ FGH ,

∠G = 59°

Hypotenuse of triangle = 11

Base of triangle according to the ∠G = x

Perpendicular of triangle according to the ∠G = y

Now,

Cosθ =  [tex]\frac{Base}{Hypotenuse}[/tex]

[tex]Cos[/tex] 59° =  [tex]\frac{x}{11}[/tex]

   [tex]x[/tex] [tex]=11[/tex]× [tex]0.515[/tex]     (  Cos59° = [tex]0.515[/tex] )

     x [tex]=5.7[/tex]

Sinθ = [tex]\frac{Perpendicular}{Hypotenuse}[/tex]

[tex]Sin[/tex] [tex]59[/tex]° [tex]=\frac{y}{11}[/tex]

      [tex]y=11[/tex] * 0.857

       y [tex]=9.4[/tex]

         

According to the sum of angle of triangle

∠F + ∠G +∠H = 180°

90° + 59° + ∠H = 180°

∠H = 180° - 90 -59

∠H = 31°

Hence,[tex]x=5.7[/tex], [tex]y=9.4[/tex]  and ∠[tex]H[/tex][tex]=31[/tex]° is the solution of the triangle.

Learn more about trigonometric ratio and sum of angle of triangle here:

https://brainly.com/question/8711345

#SPJ2

I NEED HELP ASAP PLEASE!!! I'LL GIVE BRAINLIEST FOR THE CORRECT ANSWER!!!

Answers

Answer:

x = 3

y = 4

Step-by-step explanation:

Please let me know if you want me to write an explanation for my answer :)

f(x) = 5x-3
slove this its is Evaluate functions

Answers

Answer:

f(5) = 22

Step-by-step explanation:

When we want to solve for f(x) = 5x - 3 when x is 5, all we have to do is plug in 5 as x into the equation.

f(x) = 5x - 3

f(5) = 5(5) - 3

5 * 5 = 25

25 - 3 = 22

f(5) = 22

I hope this helps you!

Ayça, bir masanın uzun kenarını karışıyla 12 karış olarak ölçmüştür. Karışı 2 cm daha uzun olsaydı
masanın uzun kenarını 1 karış daha az olarak ölçecekti.
Buna göre Ayça'nın karışıyla ölçmek istediği masanın uzun kenarı kaç santimetredir?​

Answers

Answer:

sen türksün be ne işin var senin burada

help plssss i give brainliest

Answers

Answer:

(7, - 2 )

Step-by-step explanation:

Given the 2 equations

x = - 3y + 1 → (1)

- 3x - 3y = - 15 → (2)

Substitute x = - 3y + 1 into (2)

- 3(- 3y + 1) - 3y = - 15 ← distribute and simplify left side

9y - 3 - 3y = - 15

6y - 3 = - 15 ( add 3 to both sides )

6y = - 12 ( divide both sides by 6 )

y = - 2

Substitute y = - 2 into (1) for corresponding value of x

x = - 3(- 2) + 1 = 6 + 1 = 7

solution is (7, - 2 )

what is the appropriate unit of measure for the mass of a steel cabinet?​

Answers


If you can pick it up with your fingers or one hand - grams.

If you can move it about, and maybe load it on a truck by yourself - kilograms.

If you can’t even budge it without help - tonnes.

find the
value of
x if
3^x=3^2020+3^2017/3^2017+3^14​

Answers

Answer:

I love algebra anyways

The ans is in the picture with the  steps how i got it

(hope this helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Find the slope of the line that passes through (4,-5) and (-2,9)
a -2/3
b 5/3
c -7/3
d 2

Answers

Answer:

C) -7/3

Step-by-step explanation:

m=(y2-y1)/(x2-x1)

m=(9-(-5))/(-2-4)=(9+5)/-6=14/-6

simplify -14/6 to -7/3

The cost of 2 pounds of coffee is $17.95. To the nearest dollar, what is the cost of 5 pounds of coffee?

Answers

Answer:

$45

Step-by-step explanation:

17.95÷2 = 8.975

8.975 × 5 = 44.875

Round to $45

Answer:

$45

Step-by-step explanation:

17.95/2 would be 8.975

then 8.975 times 5 would be 44.875

rounding it to the dollar would be about 45 dollars

hope this helps

Please help asap I will give you brainliest Find the area of the shaded region

Answers

Answer:

36

Step-by-step explanation:

Area of total region = 12 ×5

=60

Area of the small region = 8×3

=24

Area of shaded region = Area of Total region - area of small region

= 60 - 24

= 36

❄️✨⚡️WILL MARK BRAINLIEST⚡️✨❄️

Answers

b. -10 each time

c. The height of the slide/ the height at the top of the slide

d. 6 seconds. when Kirk is on the ground ( 0 feet off the ground), 6 seconds have past. You can see this in the point (6,0)

entre 4 grupos de un colegio recolectaron 200kg de papel para reciclarlo.el primer grupo recogio 60 1/4 kg el segundo 13 1/5 y el tercero 45,93 kg cuanto recogio el cuarto grupo? ​

Answers

Answer:

segun yo es asi no confies mucho en mi

Step-by-step explanation:

200 kg total de papel

primer grupo= 60kg

segundo= 13kg

tercero= 45.93

cuarto= x

si sumamos el total recolectado por los tres primero grupos

60+13+45.93

esto nos da

118.93

si en total se recgio 200kg de basura y tenemos que los tres primeros grupos recogieron 118.93, entonces solo queda restar el total menos lo recolectado

200-188.93= cuarto grupo

cuarto grupo=81.07kg

In a game, Theodore received a handful of coins (pennies, nickels, dimes, and quarters) as a prize. When he got home, he found that he had managed to get $2.09 in change. He noticed that he had three times as many pennies as dimes, one more nickel than dimes, and twice as many.quarters as dimes. How many quarters did Theodore get in his prize? F. 4 G. 5 9 'H J. 7 K. 8

Answers

Answer:

6

Step-by-step explanation:

https://web2.0calc.com/questions/algebra_69756

Theodore get 6 quarters in Prize.

What is Algebra?

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values.

In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

Given:

let p the number of pennies, d be the number of dimes, n be the number of nickels and q be number of quarters.

So, the expressions are

p = 3d                

n = d+1              

   = 5(d+1)

d = 10d

and, q = 2d              

           = 25 (2d)                    

and, the total is = $209

                          = 209

Then,

3d + 5(d+ 1)  + 10d  +25 ( 2d) = 209

68d + 5 = 209

d = 3                          

Thus, the number of quarters = 2d = 6 quarters.

Learn more about algebra here:

https://brainly.com/question/24875240

#SPJ2

i need help ASAP 6th grade work!!!!! HELP

Answers

Answer:

y=7miles

Step-by-step explanation:

The total perimeter is 21 miles and we know two sides of the triangle are 7 miles, or 14 miles together.

We need to know the one other side of the triangle, so we can subtract the 14 miles we know from the total 21 miles.

21-14=7miles

Answer:

y=7 mi

Step-by-step explanation:

If you know that each side of this triangle is 7 and they are each side is the same length, you can make an educated guess  that the answer is 7. If you need An easier method 7x3=21. a triangle has 3 sides so your answer would be 7

Plz solve this question

Find the measure of unknown angles​

Answers

Answer:

1360

Step-by-step explanation:

I know because I get all a's but then again I might be wrong I  didn't take my time so sorry  

Answer:

x = 110°

Step-by-step explanation:

∠ QRS = ∠ YRT = 110° ( vertically opposite angles )

∠ PQR = 180° - 120° = 60° ( adjacent angles )

The sum of the interior angles of a quadrilateral = 360°

Sum the angles and equate to 360°, that is

110 + 60 + x + 80 = 360

250° + x = 360° ( subtract 250° from both sides )

x = 110°

What is the slope of the line that passes through the points (-2, 2), and (-4, -2)​

Answers

Answer:

Step-by-step explanation:

(-2 - 2)/(-4 + 2)= -4/-2= 2 is the slope

y - 2 = 2(x + 2)

y - 2 = 2x + 4

y = 2x + 6 is the equation

Answer:

The slope is 2

Step-by-step explanation:

Hope this helps!

Other Questions
an organization with a class b network address uses 8 bits for the subnet id. each subnet in this organization can have hosts a. 512 b. 256 c. 64 d. 128 6. Suppose that the random variable Zi = Xiui, the product of two other random variables Xi and ui. You can assume that E(u;X;) = 0. Let there be n observations on Zi, {Z1, Z2,... Zn} = {X1U1, X202, . . . XnUn} and consider the average Zi, . (a) What assumptions do you need to make for a law of large numbers (LLN) to apply to 1 -1 Z ? What does the LLN say about the behavior of this average? A simple ideal Rankine cycle operates between the pressure limits of 20 kPa and 3 MPa, with a turbine inlet temperature of 500C. What is the cycle efficiency? 11) cesium-131 has a half-life of 9.7 days. what percent of a cesium-131 sample remains after 60 days? a) 100 b) 0 c) 1.4 d) 98.6 e) more information is needed to solve the problem answer: c george w. bush's popularity declined because inspectors found no ________ in iraq. As a promotion, you were offered a free play at the following game: Three balls are drawn, without replacement, from balls numbered 1 through 14. Players try to guess the three numbers drawn, but the order does not matter. If the player matches all three numbers, they win $100. If the player matches exactly two numbers, they win $10. If the player matches exactly one number, they win $5. perhaps the major contribution of gestalt psychology to contemporary systems was the ____ Calculate the cell potential for the following reaction that takes place in an electrochemical cell at 25 C.Fe(s) | Fe3+(aq, 0.0011 M) || Fe3+(aq, 2.33 M) | Fe(s)Fe2+(aq) + 3e---> e(s) F consider the following. y = 1 2 x2 x (a) find y' = f '(x). ii. recommend the strategic asset allocation that robert should present for approval at the asset allocation review. 27. A US citizen has to report all incomes generated from other countries. This is based on application of laws a. Exterritorial b. Globalization c. Equality d. Sociability Calculate the monthly lease payment for a 36-month lease on a car with a $29,000 MSRP, a 79% residual value, and a money factor of 0. 365. A. $358. 64 b. $128. 08 c. $169. 17 d. $105. 85 Please select the best answer from the choices provided A B C D. neural networks give the computer the ability to make suggestions and function like an expert in a particular field, helping enhance the performance of novice users. Using the following data for water, determine the energy required to melt 1.00 mole of ice (solid water at its melting Boiling point 373 K Melting point 273 K Enthalpy of vaporization 2,260 J/g Enthalpy of fusion 334 J/g Specific heat capacity (solid) 2.11 J/(g K) Specific heat capacity (liquid) 4.18 J/ Specific heat capacity (gas) 2.08 J/ a. 11.7 kJ d. 23.2 kJ b. 4.96 kJ e. 2.26 kJ c. 6.02 kJ 23. Which of the following hydrocarbons has the greatest fuel value? d. 6H12 a. C5H12 b. C7H16 e. C6Hi4 c. C10H Which statement about solving problems is TRUE? 1.The person who caused the problem is the one who must solve it.2.if you take your time and think logically, any problem can be solved.3.Solving the larger problem is more important that solving one of its symptoms.4.Problems never just go away on their own. Compare and contrast ribosomal and non-ribosomal peptide synthesis - find three ways in which they are similar, and three ways in which they differ. dominique+requires+a+minimum+of+$11,000+dollars+in+ten+years.+she+will+invest+in+a+cd+that+offers+simple+interest+rate+of+5.85%.+how+much+must+she+invest+to+reach+her+goal? TBS-UCMJ-2102a Without the aid of references, identify escalation of force principles in self/unit defense without omission. Hostile Act Hostile Intent the owners of Waggin Wheels drive-through ice cream and dog treat parlor have established a profit-sharing plan for themselves and their employees. They would like to include a guaranteed retirement income contract (annuity) as an investment option in the plan. To do so under the safe harbor provision available under the SECURE Act, the owners, as plan fiduciaries, are required to do all of the following EXCEPT:A. Objectively and thoroughly analyze potential insurers from which to purchase contracts.B. Consider the financial capability of each insurer to satisfy its obligations under the annuity contract.C. Select the lowest cost (including commissions and fees) contract.D. Conclude that, at the time of selection, the insurer is financially capable of satisfying its obligations under the contract and that the relative cost is reasonable. solve the initial value problem dx/dt = ax with x(0) = x0. a = 5 2 3 2 3 2 5 2 x0 = 1 4