ASAP! GIVING BRAINLIEST! Please read question 10 THEN answer correctly! No guessing.

Answer:

a) v_avg = k

b) 0.034 km/h

Step-by-step explanation:

a) The average velocity is given by the displacement over the time:

[tex]v_{avg}=\frac{\Delta x}{\Delta t}[/tex]   (1)

Δx is the area under the line. In this case you can consider two areas. Firs, from t=0 t0 t=30 and from t=30 to t=50:

S1 = 30k

S2 = 20k/2 = 10k

Then, the total surface is:

S = S1+S2 = 50k

The average speed is:

v_avg = (50k)/(50s)= k

b) The value of k can be determined by using the expression for the total area under the line, which is the total displacement of the car S=1.7 km:

S=50k=1.7km

k=(1.7km)/(50k)=0.034km/h = 34 m/h

Answer:

The half life of the car is 3.98 years.

Step-by-step explanation:

The value of the car after t years is given by the following equation:

[tex]V(t) = V(0)(1-r)^{t}[/tex]

In which V(0) is the initial value and r is the constant decay rate, as a decimal.

The value of a certain car decreases by 16% each year.

This means that [tex]r = 0.16[/tex]

So

[tex]V(t) = V(0)(1-r)^{t}[/tex]

[tex]V(t) = V(0)(1-0.16)^{t}[/tex]

[tex]V(t) = V(0)(0.84)^{t}[/tex]

What is the 1⁄2-life of the car?

This is t for which V(t) = 0.5V(0). So

[tex]V(t) = V(0)(0.84)^{t}[/tex]

[tex]0.5V(0) = V(0)(0.84)^{t}[/tex]

[tex](0.84)^{t} = 0.5[/tex]

[tex]\log{(0.84)^{t}} = \log{0.5}[/tex]

[tex]t\log{0.84} = \log{0.5}[/tex]

[tex]t = \frac{\log{0.5}}{\log{0.84}}[/tex]

[tex]t = 3.98[/tex]

The half life of the car is 3.98 years.

Answer: 2/5

Step-by-step explanation:

Answer:

parllelogram

Step-by-step explanation:

............

Answer:

3 1/2 houses

Step-by-step explanation:

To find the unit rate we must divide 4 by 10

4 hours divided by 10 house = 1/4

1/4 houses per hour

8 hours times 0.4= 3.2 houses

Answer:

20 houses

Step-by-step explanation:

Let’s make a proportion using this setup:

houses/hours=houses/hour

We know that 10 houses can be cleaned in 4 hours. We don’t know how many houses can be cleaned in 8 hours, so we can say x houses can be cleaned in 8 hours.

10 houses/4 hours= x houses/8 hours

10/4=x/8

Now we have to solve for x, by getting x by itself. Perform the opposite of what is being done to both sides.

x is being divided by 8. The opposite of division is multiplication, so multiply both sides by 8

8(10/4)=(x/8)8

8(10/4)=x

8(2.5)=x

20=x

20 houses can be cleaned in 8 hours.

Answer:

a

Step-by-step explanation:

Answer: The answer is D: y + 20 > -30

Step-by-step explanation:

I got this right on edgen.

Have a good day!! #BLM <3

ORDER FROM LEAST TO GREATEST:

-10, -9, -8, -7,-6, -5, -4, 0, 2, 9, 10.

Hey there!

When we have negative numbers, we might count like this: ....-5,-4,-3,-2,-1,0,1,2,3....

As you can see, the negative number is known as greater if it is closer to zero, so -1 is greater than -100.

With this information, let's order these numbers! :)

-10,-9,-8,-7,-6,-5,-4,0,2,9,10

I hope that this helps!

The article shows that it may make it easier for the government to have access to a person's private information and to conduct unwarranted searches and seizures.

A person's Fourth Amendment rights is related to the right of an individual to be protected from unwarranted searches and seizures by the government.

According to the articles, Goo_gle's mission is to give

everyone access to as much information as possible.

This however would make it easier for a person's personal belongings or private information to be a target of government officials.

Therefore, Goo_gle's mission may make it easier for the government to have access to a person's private information making it easier to conduct unwarranted searches and seizures.

Learn more about Fourth Amendment rights at: https://brainly.com/question/17104412

Answer:

3×4 = 12!

TWO WAYS TO LOOK AT IT:

(A) 3 groups of 4!

(B) 4 groups of 3 apples!

Answer:

4500[tex]\pi[/tex] [tex]ft^{3}[/tex]or 4712.39[tex]ft^{3}[/tex]

What we need to know: The formula for the volume of a cone is: [tex]V=\pi r^{2} \frac{h}{3}[/tex]

So we are solving for V

Step-by-step explanation:

1) Radius is half of diameter r=30/2 thus, your radius is 15

2) you then have all your variables so you can start plugging values into your equation:

r=15 h=60

[tex]V=\pi 15^{2} \frac{60}{3} \\V=\pi (225)*(20)\\V=\pi(4500) \\V= 4500\pi[/tex]

This would be your exact answer but if you are solving for a rounded answer it would be

V~4712.39[tex]ft^{3}[/tex]

Answer:

B) the members of the basketball team can't be considered a random sample from the entire collegiate population.

Step-by-step explanation:

The coach is trying to estimate a parameter of a population (the mean resting pulse rates of alla collegians) from a sample statistic (the mean resting pulse of the basketball team's players).

The confidence interval for the parameter is of little use as the sample of team players is not representative of the population of collegians. The sample can not be considered random. Then, the estimation of the parameter will be biased.

Answer:

[tex] = 4z + 18[/tex]

Step-by-step explanation:

[tex]5 + 4z + 13 \\ = 4z + 18[/tex]

Answer:

2/5

Step-by-step explanation:

Answer:

a number x is multiplied by 4 then increased by 2

Step-by-step explanation:

4x+2

Answer:

Step-by-step explanation: It’s C, So you just plug it in basically. y = 4x + 1, for example let’s use the third column y = 4(2) + 1, equals 9. You just repeat it in all the other columns and you equal y. So it’s C, y = 4x + 1

Answer:

  58.0 units

Step-by-step explanation:

In order to use the law of sines, we need to know angle C. It will be the angle that brings the total of all angles to 180°.

  C = 180° -A -B = 180° -72° -16°

  C = 92°

The law of sines tells us ...

  a/sin(A) = c/sin(C)

  a = c·sin(A)/sin(C) = 61·sin(72°)/sin(92°)

  a ≈ 58.0 . . . . units

Hey!!

Here's your answer:

Answer:d+9

Hope it will help you....

Good luck on your assignment

Answer:

9/10 is equivilent to 0.900

Step-by-step explanation:

Answer: x = 3/4 x = -5

Step-by-step explanation:

x+5=0

x=-5

4x-3=0

Add three to both sides

4x = 3

x=3/4

Answer:

5/6 - 1/3 = 5/6 - 2/6 = 3/6 = 1/2 more cups of flour. Hope this helps!

Answer:

1/3 x 2/2 = 2/6

5/6 - 2/6 = 3/6

3/6 / 3/3 = 1/2

1/2 more flour than sugar

Hope this helps. If you have any questions you can ask.

Step-by-step explanation:

Answer:

You should be able to figure this out from the explanation below.

Step-by-step explanation:

When two lines cuts across each other they form.what we call.vertically opposite angles so from the figure above, we can say:

Look at the diagram below for more understanding of the concept.

Answer: 77 degrees

Step-by-step explanation:

Use Theorem "measure of the angle is the average of the measures of the arc

(a=b+c/2)

a=x

b=76

c=78

Set up your equation, X=76+78/2

=77

Hope this heeelps~!!

-Michiko

Answer:

Top to Bottom:

2nd Parallelogram

2nd Trapezoid

Triangle

1st Parallelogram

1st Trapezoid

Step-by-step explanation:

1. Trapezoid: 40

2. Triangle: 30

3. Parallelogram: 32

4. Trapezoid: 28

5. Parallelogram: 24

P.S. Sorry I took to Long

Answer:

B

Step-by-step explanation:

The -1/3 stretched it and reflect it to x axis, then the 4 moved it to the left

Answer:

im not sure if your doing it by 38 dividend by 23 but i got 1.652174.......idk really im doing the same question lol.

Step-by-step explanation:

Answer:

  see below

Step-by-step explanation:

The sides of the triangle that are given in relation to x are the Adjacent side (10) and the Hypotenuse (15). The mnemonic SOH CAH TOA tells you the trig function that uses sides A and H is the Cosine function.

  Cos = Adjacent/Hypotenuse

  cos(x) = 10/15

Answer:

It is not equivalent

Step-by-step explanation:

Because the first expression simplified is 3x with the power of 9, and the first expression simplifies to x with a power of 9.

Answer:

No, they are not equivalent.

Step-by-step explanation:

In the case of the first expression: x³ * x³ * x³, you will solve the power first, before multiplying the whole numbers.

However, in terms of the second one, you are multiplying the powers first, and then solving for the power.

Take for example, x = 2. Plug in 2 for x in the expressions given:

x³ * x³ * x³ = 2³ * 2³ * 2³ = 8 * 8 * 8 = 64 * 6 = 512

However,

2^(3 * 3 * 3) = 2^(27) = 134,217,728

~

Answer:

Step-by-step explanation:

Huh lol ok

Answer:

[tex] 240 =5x +115[/tex]

And we can solve for x in order to find the number hours using to decorate the house.

We can subtract in both sides 115 and we got:

[tex] 240-115= 5x[/tex]

[tex] 125 = 5x[/tex]

And now we can divide both sides by 5 and we got:

[tex] x= 25[/tex]

So then the number of hours spent to decorate the house are 25

Step-by-step explanation:

Based on the information given we can model this function with this formula:

[tex] y = mx+b[/tex]

Where y represent the total cost paid, m the cost per hour representing the slope and x the number of hours worked and finally b the initial cost for the materials. Then our function is given by:

[tex] 240 =5x +115[/tex]

And we can solve for x in order to find the number hours using to decorate the house.

We can subtract in both sides 115 and we got:

[tex] 240-115= 5x[/tex]

[tex] 125 = 5x[/tex]

And now we can divide both sides by 5 and we got:

[tex] x= 25[/tex]

So then the number of hours spent to decorate the house are 25

Answer:

8400

Step-by-step explanation:

Round them to their nearest whole:

23.8 x 349

24 x 350

We then use what we rounded and answer...

24 x 350 estimated to 8400

Answer:

6000

Step-by-step explanation:

23.8 - 20

349 - 300

20 times 300 = 6000