how do scientists know about the ordovician period

Answer:

A. You need to draw a straight line that increases from left to right. Try and get the same amount of plots on the top and bottom of the line and go through one or two of the plots. Don't connect the dots, though.

B. This scatter plot demonstrates a positive association between a person's height and weight because the trendline increases from left to right. According to this data, as weight increases, so does height. The more someone weighs, the more likely they are to be tall.

Answer:

The final balance is $28,366.91.

So a gain of 8366.91

Step-by-step explanation:

Given parameters:

Number of liters of jam = 12 liters

Number of days = 4 days

Unknown:

Number of jams jarred in 6 days = ?

Solution:

Let us first find the rate of Kathleen in this jarring work;

     Rate  = [tex]\frac{Number of jams}{Number of days}[/tex]

     Rate  = [tex]\frac{12}{4}[/tex]   = 3liters/day

Now, the number of jams in 6days;

    Number of jams = Rate x number of days

    Number of jams = 3 x 6  = 18jams

The number of jams jarred in 6 days is 18

Answer:

7 workers

Step-by-step explanation:

[tex]\frac{workers first time}{workers second time} = \frac{hours second time}{hours first time}[/tex]

[tex]\frac{3}{x} = \frac{12}{28}[/tex]

cross multiply and it becomes

12x = 3x28

12x = 84

x = 84/12

x = 7 workers

Answer

4

Step-by-step explanation:

3/28=x/12

that is 7 and you need to find how many more workers so you subtract

7-3=4

Answer:

27°

Step-by-step explanation:

Step 1:

∠A + ∠C + ∠D = 180°     Sum of a Δ

Step 2:

3x - 10 + 45 + 2x + 10 = 180        Input all values

Step 3:

5x + 45° = 180°     Combine Like Terms

Step 4:

5x = 135°        Subtract 45° on both sides

Step 5:

x = 135° ÷ 5       Divide

Answer:

x = 27°

Hope This Helps :)

Answer:

14910 meters

Step-by-step explanation:

3 weeks= 21 days

each day= 710 m

21 days= 710*21

21 days= 14910 m

The multiplicative rate of change of the function will be [tex]\frac{2}{3}[/tex].

It is an arithmetical operation that calculates the product of two values, first described in terms of repeated addition.

When the value of x is changed from 1 to 2, the value of y is changed from 6 to 4.

The multiplicative rate of change of the function will be

[tex]\frac{4}{6} = \frac{2}{3}[/tex]

When the value of x is changed from 2 to 3, the value of y is changed from 4 to [tex]\frac{8}{3}[/tex].

The multiplicative rate of change

[tex]\frac{\frac{8}{4} }{4} = \frac{2}{3}[/tex]

When the value of x is changed from 3 to 4, the value of y is changed from [tex]\frac{8}{13}[/tex] to [tex]\frac{16}{9}[/tex].

Hence the multiplicative rate of change of the function will be [tex]\frac{2}{3}[/tex].

To learn more about the multiplicative rate refer to the link;

https://brainly.com/question/4239679

Answer:

2/3

Step-by-step explanation:

edge

Answer:

if the numbers were the same, they'd both be 61

So, try 60 and 62.

Algebraically, if x is the smaller number,

x + x+2 = 122

2x = 120

x = 60

Thanks!

Mark me brainliest!

~[tex]FieryAnswererGT[/tex]~

Your answer will be The letter (A) because 2x+1 is 4 and all you have to do is minus 2 to get your answer.

Therefore 4-2 is bascalliy is 2 so there is your answer.

Answer:

The cost of a drink is $1.5

Step-by-step explanation:

Let x be the cost of 1 hot dog , y be the cost of 1 drink and z be the cost of 1 pretzel

We are given that The Smith family purchased 3 hot dogs, 1 drinks, and 4 pretzels for $19.50.

So, 3x+y+4z=19.50 ---1

We are also given that The Garcia family bought 3 hot dogs, 2 drinks, and 2 pretzels for $15.

So, 3x+2y+2z=15 ---2

We are also given that The Jones family spent $10.00 on 2 hot dogs, 2 drinks, and a pretzel.

2x+2y+z=10 ---3

Substitute the value of y from 1 in 2 and 3

3x+2(19.50-3x-4z)+2z=15  and 2x+2(19.50-3x-4z)+z=10

-3x-6z+24=0----4 and -4x-7z+29=0 ---- 5

Substitute the value z from 4 in 5

[tex]-4x-7(\frac{-24+3x}{-6})+29=0[/tex]

x=2

Substitute the value of x in 4

-3(2)-6z+24=0

z=3

Substitute the value of x and z in 1

3(2)+y+4(3)=19.50

y=1.5

Hence the cost of a drink is $1.5

Answer: 24 is the product of 8(3) and 4(3+3)

Step-by-step explanation: hope this helps. <3

Answer:

PQ = 18

Step-by-step explanation:

If R is the midpoint of PQ, then PR = RQ

⇒ 6x + 7 = 3x + 8

⇒ 3x = 1

⇒ x = 1/3

So PR = 6x + 7 = 6(1/3) + 7 = 9

and RQ = 3x + 8 = 3(1/3) + 8 = 9

⇒ PQ = PR + RQ = 9 + 9 = 18

Answer:

i)20 ii)5 iii)55 iv)80 this is the answer

We are given that the arithmetic progression is defined by :

➝ 2n + 1

Therefore,

➙ n = 1

➝ 2 × 1 + 1

➝ 2 + 1

➝ 3

➙ n = 2

➝ 2 × 2 + 1

➝ 4 + 1

➝ 5

➙ 2nd term - 1st term

➝ 5 - 3

➝ 2

Answer:

57.939

Step-by-step explanation:

6.23 x 9.3 = 57.939
Hope this helps :)

Answer:

The answer is approximately 57.94

Step-by-step explanation:

When you are asked to find the product of something, it means to multiply.

Sum=addition   Difference=subtraction    Product=multiplication    Quotient=division

Hope that helps!

Answer:

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Explanation:

look at the screenshots

Answer:

Step-by-step explanation:

You already have the awnser there.

15.3+1.1+1.7 =18.1

Example:

a+b+c= a+c+b= b+c+a= b+a+c

You can Sum the numbers in which way you’d like,the awnser will be same if there is only pluses (+)

Answer: -3x/4 + 2

Step-by-step explanation:

multiply 3/4x and 3x/4

Answer:

its b

Step-by-step explanation:

may i also please get brainliest

Answer:

To find this question, you first should put your data values in order from least to greatest. Doing so would look like this:

39, 39, 3 , 40 , 46 , 48 , 60 , 62 ,62

Now find the median, the middle number. This would be 46. This would also be the middle point on your box and whisker plot. Looking at your answer choices, the only one that has the middle point at 46 is the last one. So that is your answer.

Step-by-step explanation:

Answer:

its 39

Step-by-step explanation:

Answer:

your answer is 0.4x10^6

Step-by-step explanation:

400×10^3

or 4×10^5 is more convenient

anyone answer is correct I hope it helps u

Check the picture below.

since chords NQ and MP cross the center of the circle at R, that means that those two chords are diametrical chords and the angles made by both are vertical angles and thus twin angles, namely both are 18° as you see in the picture, so the angle NMP in magenta is really 162° + 18° + 18° = 198°, and we know the radius NR is 8.

[tex]\textit{arc's length}\\\\ s=\cfrac{r\pi \theta }{180}~~ \begin{cases} r=radius\\ \theta =\stackrel{degrees}{angle}\\[-0.5em] \hrulefill\\ r=8\\ \theta =198 \end{cases}\implies s=\cfrac{(8)\pi (198)}{180}\implies s\approx 27.6[/tex]

Subtract to find the amount of discount then divide by original price

105 - 63 = 42

42/105 = 0.40 = 40%

Answer: 40%

Answer:

Find the radius of the circle which passes through the origin, (0,4) and (4,0) . (1) 2(2) [tex]4\sqrt{2}[/tex] (3) [tex]\sqrt{8}[/tex](4) [tex]3\sqrt{2}[/tex]

Answer:

see explanation

Step-by-step explanation:

Under a reflection in the line y = x

a point (x, y ) → (y, x ) , thus

A(2, 2 ) → A'(2, 2 )

B(5, 7 ) → B'(7, 5 )

C(8, 5 ) → C'(5, 8 )

Answer:

3/8

Step-by-step explanation:

3/4 x 2 = 6/8 and half it would be 3/8

Answer:

Step-by-step explanation:

Like terms are those terms that are having the same variables and order. The simplified form of the given equation 7z+2=8+2z+1z is 4z=6.

Like terms are those terms that are having the same variables, also the variables are of the same order as well.

for example, 25x and 5x are like terms; 30xy and 7xy are like terms, 9x³ and 4x² are not like terms, etc.

The given equation to us is 7z+2=8+2z+1z, simplifying the equation we will get,

[tex]7z + 2 = 8 + 2z + 1z\\\\\text{Bring the like terms on the same side of the equation}\\\\7z -2z-1z = 8 -2\\\\7z-3z=6\\\\4z = 6[/tex]

Hence, the simplified form of the given equation 7z+2=8+2z+1z is 4z=6.

Learn more about Like Terms:

https://brainly.com/question/2513478