the table shows the height of a plant as it grows. Which equation in point slope form gives the plants height at any time?

Answers

Answer 1

Answer:

Answer:

y - 21 = 7(x - 3)

Step-by-step explanation:

If we plot the points on a graph having time on x axis and plant height on y axis then the two points will be (3, 21) and (5, 35).

Let the equation of the line is y - y'= m(x - x')

where m = slope of the line

Now slope of the line joining these points 'm' = $(y-y')/(x-x')$

m = $(35-21)/(5-3)$

m = $(14)/(2)$

m = 7

Now the equation that passes through the point (3, 21) will be y - 21 = 7(x - 3)

Therefore, equation that represents the height of the plant at any time is y - 21 = 7(x - 3)

Answer 2

Answer: (3,21)(5,35)
slope = (35 - 21) / (5 - 3) = 14/2 = 7

possible answers are :
y - 21 = 7(x - 3)
or
y - 35 = 7(x - 5)
or
y - 49 = 7(x - 7)
or
y - 63 = 7(x - 9)

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Nancy’s grandma needs 5/8 of a yard of lace for each doll hat she makes. How many doll hats can she make with 10 yards of lace?
What is the area of a rectangle with measurement of 17 ft 8 in by 11ft 8in
Factor 20x2 + 25x - 12x - 15 by grouping.

A bakery has 4 trays with 16 muffins on each tray. The bakery has 3 trays of cupcakes with 24cupcakes on each tray. If 15cupcakes are sold, how many muffins and cupcakes are left?

Answers

16 x4=64
24x3=72
72-15= 56
56+64=120

The graph below shows the distance, y, in feet, of a mouse from its hole, for a certain amount of time, x, in minutes:Graph titled Distance Vs Time is shown with Time in minutes along the x-axis and Distance from Hole in feet along the y-axis. The scale on the x-axis shows the numbers 0 to 45 at increments of 9, and the scale on the y-axis shows the numbers 3 to 24 at increments of 3. A straight line joins the ordered pairs 0, 9 and 9, 12 and 18, 15 and 27, 18 and 36, 21.

Based on the graph, what is the initial value of the graph and what does it represent?

0.23 foot per minute; it represents the speed of the mouse
9 feet; it represents the original distance of the mouse from its hole
0.23 foot; it represents the original distance of the mouse from its hole
9 feet per minute; it represents the speed of the mouse

Answers

Answer:

The initial value is (0,9).

Hence option B is correct.

Step-by-step explanation:

Based on the graph, the initial value of the graph is (0,9)

where x=0 and y=9

where for the coordinate (x,y) ; x represents the time in minutes and y denotes the distance of the mouse from the hole in feet.

That means initially(i.e. at time t=0) the mouse is 9 feet away from the hole.

Hence the answer is 9 feet; it represents the original distance of the mouse from its hole.

Hence option B is correct.

Based on the graph, what is the initial value of the graph and what does it represent 0.23 foot; it represents the original distance of the mouse from its hole

a washer and a dryer cost 659$ combined. The washer costs 91$ less than the dryer, how much was the dryer?

Answers

W+D=659

W=D-91

---------------------------

(D-91)+D=659

D-91+D=659

2D=750

D=750/2=375

------------------------------

W+375=659

W=284

------------------------------

So the dryer had cost $375 and the washer had cost $284.

a washer and a dryer cost 659$ combined. The washer costs 91$ less than the dryer, how much was the dryer?
washer --> x
dryer --> y

x + y = 659$
y = x + 91$

x + x + 91$ = 659$

2x = 659$ - 91$

2x = 568$ |:2

x = 284$
y = x + 91$ = 284$ + 91$ = 375$

The dryer costs 375$ and washer costs 284$

What is the approximate area of the circle? Use 3.14 = Pi

A. 122.7 m²
B. 78.5 m²
C. 39.3 m²
D. 19.6 m²

Answers

what is the diameter or radius?

[(a+3)x8+26]:5=18 va multumesc frumos

Answers

$[(a+3)*8+26]:5=18 \n\n (a+3)*8+26=18*5 \n\n (a+3)*8+26=90 \n\n (a+3)*8=90-26 \n\n (a+3)*8= 64 \n\n a+3=64:8 \n\n a+3=8 \n\n a=8-3 \n\n \boxed{a=5}$

so [(a+3)8+26]/5=18
multiply out
[8a+24+26]/5=18
add
(8a+50)/5=18
bultiply both sides by 5
8a+50=90
subtract 50 from both sides
8a=40
divide both sides by 8
a=5

A table is 2 feet wide it is 6 times as long as it is wide

Answers

Answer:

length × width
(6×2) × 2
12 × 2
So length is 12

2 feet times 6 equals 12 which gives you the answer that the length is 12