20 points!!

Find the equation of the trend line (line of best fit). Show your work.

Answer:

0.786 L

Step-by-step explanation:

1000 ml to 1 L

(786 ml) / (1000 ml) = 0.786 L

0.786 L liquids of liter did the scientist to use for this experiment

Division is the process of splitting a number or an amount into equal parts.

here, we have,

A scientist used 786 milliliters of an liquid for an experiment.

we know,

1000 ml to 1 L

so, we get,

(786 ml) / (1000 ml) = 0.786 L

Hence, 0.786 L liquids of liter did the scientist to use for this experiment.

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The answer to number 1 is 2/9 of her paycheck. The answer to number 2 is 3/5. Its square is 9/25 which is in between 1/3 and 1/2. It's reciprocal is 5/3 which is in between 1 and 2. It is also in simplest form.

Answer:

Step-by-step explanation:

2,314,976*5%= $115,748.80

Answer:1,200 students

Step-by-step explanation:

540/45=12=1%

12*100=1,200

Answer:

These parallel lines cross 1 line. Because they are parallel they will form the same angles on that line. Therefore, x+50 = 3x-100 since those angles are corresponding angles made by a pair of parallels.

To find x we need to find what value of x gives the same answer for 3x-100 and x+50 since those 2 angles are equal.

x+50 = 3x-100 - now all we need to do is solve for x:

x+50 = 3x-100

50=2x-100

150=2x

75=x

x=75

Step-by-step explanation:

y=a(x - h)^2+k

standard form: y= - 1/2x^2+4x-5

vertex form: y= -1/2(x - 4)^2+3

slope m and y-intercept b

slope: -2

y-intercept:(0,11)

so the answer is A. your welcome

Answer:

A) is not correct

Step-by-step explanation:

All rations numbers are not integers.

Integers = { ........ -4 , -3 , -2 , -1 , 0 , 1 , 2 , 3 ....................}

1/2 is a rational number but it is not an integer

Answer:

c

Step-by-step explanation:

hope this helps:)

Answer:

$227.50

Step-by-step explanation:

45.50*5=227.50

Answer:

45.50 times 5=227.5

Step-by-step explanation:

Answer:

Step-by-step explanation:

Since Z is midpoint of SR and Y is midpoint of QR, so as per triangle midpoint theorem ZY is parallel to SQ and measures half of its value:

Correct answer choice is B

Answer:

the answer is B.12 ......

Answer: 8.49

Step-by-step explanation:

i took the test and it was right

Answer:

37 years old.

Step-by-step explanation:

2 years ago

Singh-  7s

Son- s

3 years in the future(so 5 years forward)

Singh- 7s+5

Son- s+5

7s+5 = 4(s+5)

7s+5 = 4s+20

3s = 15

s=5

2 years ago the son was 5 so Mr. Singh was 35

Now Mr. Singh is 37

Answer:

Hi

Step-by-step explanation:

Answer:

s = 2t₁ + t₂

3 possible combinations:

t₁ = 0 min , t₂ = 8 min

t₁ = 1 min , t₂ = 6 min

t₁ = 2 min , t₂ = 4 min

Step-by-step explanation:

The distance covered by a body in uniform motion is given by the following equation:

s = vt

where,

s = distance

v = speed

t = time

For running:

s = s₁

t = t₁

v = 2 miles/min

Therefore,

s₁ = 2t₁

For walking:

s = s₂

t = t₂

v = 1 miles/min

Therefore,

s₂ = t₂

And the total distance will be:

s = s₁ + s₂

s = 2t₁ + t₂

where,

s = total distance covered in miles

t₁ = running time in min

t₂ = walking time in min

Now, the total distance is given as 8 miles:

8 = 2t₁ + t₂

So, the 3 possible combinations of time to satisfy this equation can be:

t₁ = 0 min , t₂ = 8 min

t₁ = 1 min , t₂ = 6 min

t₁ = 2 min , t₂ = 4 min

Answer:

r = 25

Step-by-step explanation:

r/5 = 5

5 x r/5 = 5 x 5

r = 25

Answer:

r=25

Step-by-step explanation:

r/5-6+6= -1+6

r/5=5

r/5×5=5×5

r=25

Answer:

$0.32/ $0.31

Step-by-step explanation:

unit prices are determined by dividing the price by the number of units, OZ in this case. $4.50÷14oz= $0.32

3.75÷12oz= $0.31

Answer:

18

Step-by-step explanation:

Answer:

18 because it's asking for the tw

Answer:

14

Step-by-step explanation:

Frist find the square root of 49=7.

Next add 7+7=14.

Finally there is your answer 14.

Answer:Perimeter=28

Area=a^2

49=a^2

√49=√a^2

√49=a

a=7

Perimeter=4a

4(7)=28

I hope this is good enough:

Answer:

Kerry's ball stays longer in the air than Marias ball by an extra 0.582 seconds

Step-by-step explanation:

The equation that models the height, h, in feet of object thrown modeled as a time function is given as follows;

h(t) = -16t² + v₀·t + h₀

Where;

v₀ = The velocity upwards (vertical velocity)

h₀ = The initial height of the object in feet

The given parameters are;

The initial height from which Maria throws a ball = 6 feet

The initial vertical velocity with which Maria throws the ball = 40 feet per second

The initial height from which Kerry throws a ball = 5 feet

The initial vertical velocity with which Kerry throws the ball = 50 feet per second

For Maria, from the equation for the height of the object, we have;

h(t) = -16t² + v₀·t + h₀

Where for Maria, we have;

h₀ = 6 feet

v₀ = 40 ft/s

Substituting gives;

h(t) = -16 × t² + 40 × t + 6 = -16·t² + 40·t + 6

h(t) = -16·t² + 40·t + 6

The time it takes for the ball to go up and come back down again is given by the value of t, when h = 0 (ground level) as follows;

0 = -16·t² + 40·t + 6

16·t² - 40·t - 6  = 0

From the quadratic formula, we have

[tex]x = \dfrac{-b\pm \sqrt{b^{2}-4\cdot a\cdot c}}{2\cdot a}[/tex]

[tex]t = \dfrac{40\pm \sqrt{(-40)^{2}-4\times 16 \times (-6)}}{2\times 16} = \dfrac{40 \pm 8 \times \sqrt{31} }{32} = \dfrac{5}{4} \pm \dfrac{\sqrt{31} }{4}[/tex]

t ≈ 2.64 s or -0.14 s

Therefore, the time the ball spends in the air ≈ 2.64 s

For Kerry,  we have;

h₀ = 5 feet

v₀ = 50 ft/s

Substituting gives;

h(t) = -16 × t² + 50 × t + 5 = -16·t² + 50·t + 5

h(t) = -16·t² + 50·t + 5

Which gives;

16·t² - 50·t - 5  = 0

From the quadratic formula, we have

[tex]x = \dfrac{-b\pm \sqrt{b^{2}-4\cdot a\cdot c}}{2\cdot a}[/tex]

[tex]t = \dfrac{50\pm \sqrt{(-50)^{2}-4\times 16 \times (-5)}}{2\times 16} = \dfrac{50 \pm 2 \times \sqrt{705} }{32} = \dfrac{25}{16} \pm \dfrac{\sqrt{705} }{16}[/tex]

t ≈ 3.222 s or -0.097 s

he time the ball spends in the air ≈ 3.222 s

Therefore, Kerry's ball that spends approximately 3.222 seconds stays longer in the air than Maria's ball that spends approximately 2.64 seconds in the air.

The difference in the two time duration is 3.222 - 2.64 = 0.582

Kerry's ball stays longer in the air than Marias ball by an extra 0.582 seconds.

Answer:

5 m

Step-by-step explanation:

V = l × w × h

480 = 12 × 8 × h

h = 480 ÷ 96 = 5 m

Answer:

5m

Step-by-step explanation:

Well volume is V=Bh. So you do 12 times 8= 96 thats your base. So you need to them do 480 divided by 96 which equals 5 so therefore 5 is your answer. Also just to make sure that's the right answer, do 12 times 8 times 5. That equals 480.

in my opinion i think there is twooo

9514 1404 393

Answer:

  (3, 2), (4, 0)

Step-by-step explanation:

Two integer grid points are crossed by the curve on or above the x-axis:

  (x, y) = (3, 2), (4, 0).

Two lines are parallel if the have the same slope. To find the slope of the line parallel to the line y=4/7x-2 we need to get the line into slope-intercept form (y = mx + b), but the line is already in that form, so the slope is m = 4/7.

Because two lines are parallel if the have the same slope, we concluded that the slope of the parallel to y=4/7x-2 is m = 4/7.

Answer:

-40 1/4

Step-by-step explanation:

Answer: -40 1/4

Step-by-step explanation:

I think your question lacks a little bit of information. After a little research, I am able to find that you probably wanted to say '11 1/5 divided by 2 3/4'.

Therefore, I am solving the question assuming that you want to say:

''What is the best estimate of 11 1/5 divided by 2 3/4''.

Answer:

The best estimate of  11 1/5 divided by 2 3/4 will be: 4

Step-by-step explanation:

Given the information

11 1/5 divided by 2 3/4

solving the expression

[tex]11\frac{1}{5}\div 2\frac{3}{4}[/tex]

[tex]\mathrm{Convert\:mixed\:numbers\:to\:improper\:fraction:}\:a\frac{b}{c}=\frac{a\cdot \:c+b}{c}[/tex]

so

so the expression becomes

[tex]11\frac{1}{5}\div 2\frac{3}{4}\:=\frac{56}{5}\div \:\frac{11}{4}[/tex]

                [tex]=\frac{56}{5}\times \frac{4}{11}[/tex]

                [tex]=\frac{56\times \:4}{5\times \:11}[/tex]

               [tex]=\frac{224}{5\times \:11}[/tex]

               [tex]=\frac{224}{55}[/tex]

                [tex]=4.07[/tex]

                [tex]= 4[/tex]       (Rounded to the nearest 1 or the Ones Place)

Therefore, the best estimate of  11 1/5 divided by 2 3/4 will be: 4

The answers are :

a) The value of c or y - intercept is $60.

b) The domain is all real numbers.

c) The range will be equal to {y | y ≥ 60}.

What is the function ?

A function is a relationship between inputs and outputs where each input has precisely one output and the output can be linked to its input.

It is given that :

Yearly cost in dollars = y

Number of game tokens purchased for a member of the arcade = x

We know that :

The function is represented by equation :

y = [tex]\frac{x}{10}[/tex] + 60

Comparing it with the general equation we get :

Slope (m) = [tex]\frac{1}{10}[/tex]

and y - intercept (c) = $60

Now , when x = 0 then :

y = [tex]\frac{1}{10}[/tex] × 0 + 60

y = 0 + 60

y = $ 60

The domain is x ≥ 0. The domain will be all real numbers.

and y ≥ 60

The range will be :

{y | y ≥ 60}

Therefore , the answers are :

a) The value of c or y - intercept is $60.

b) The domain is all real numbers.

c) The range will be equal to {y | y ≥ 60}.

Learn more about functions here :

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The answers are

-The y-intercept of the function is $60

-The function can be represented by the equation y=1/10x+60

and

-The range is {y| y>60}.

Answer:

of what? ohhh ok

Step-by-step explanation:

yeah

Answer:

{(4, -6), (9, – 7), (9,-4), (6,3)}

Step-by-step explanation:

It doesn't represnt a function because the 9 repeats twice