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alisha [4.7K]
3 years ago
5

At 2 seconds, an object's velocity is 23 meters per second. At 9 seconds, the object's velocity is 38 meters per second. Assumin

g a constant acceleration, what is the acceleration in meters per second per second of the object? (If necessary, round to the nearest hundredth.)
Mathematics
1 answer:
V125BC [204]3 years ago
6 0
Acceleration  = change of velocity / time

                       =    38 - 23) / (9 -2) =  15/7 =  2.14 m s^-2 to nearest hundredth
                 
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The following triangular prism has a base that is a right triangle. Help Please I'm Out Of Time ;( Draw or describe the net of t
andrey2020 [161]

Answer:

184.86 sq. cm.

Step-by-step explanation:

The following triangular prism has a base that is a right triangle.  

We need to describe the net of this triangular prism.

The need of triangular prism contains three rectangles and two congruent right angles as shown in the below figure.

Now, using the net we have to find the surface area of the prism.

Area of a rectangle is

Area=length\times width

A_1=4.3\times 10=43

A_2=6.75\times 10=67.5

A_3=5.2\times 10=52

Area of a triangle is  

Area=\dfrac{1}{2}\times base\times height

A_4=\dfrac{1}{2}\times 4.3\times 5.2=11.18

A_5=A_4=11.18

So, total area is

A=A_1+A_2+A_3+A_4+A_5

A=43+67.5+52+11.18+11.18=184.86

Therefore, the surface area of the prism is 184.86 sq. cm.

6 0
3 years ago
Alice skates 2/5 mile in 1/5 hour. Elizabeth skates 2/3 mile in 2/9 hour. who skates futher in 1 hour
poizon [28]
Alice is skating faster because she may take a larger number of a reduced hour but she covers 2/3 of a mile when skating.
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3 years ago
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The amount of gasoline remaining in the tank decreases with mileage driven. Identify the independent and dependent quantity in t
SVEN [57.7K]

Answer:

The independent variable is " mileage driven."

The dependent variable is " amount of gasoline remaining in the tank"

Step-by-step explanation:

Given: The amount of gasoline remaining in the tank decreases with mileage driven.

When we drive the distance, the amount in the tank decreases.

Therefore, the amount of gasoline depends on the mileage driven.

Here the independent variable is " mileage driven."

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Hope this will help you to understand the concept.

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4 years ago
Determine the x-intercept and the y-intercept for the graph of this equation:<br> 2x - 3y + 36 = 0
natali 33 [55]

QUESTION:- DETERMINE THE X-INTERCEPT AND THE Y-INTERCEPT FOR THE GRAPH OF THE EQUATION.

EQUATION:- 2x - 3y + 36 = 0

STANDARD EQUATION:- y=mx+c

where

  1. m-> slope.
  2. c-> Y-INTERCEPT
  3. x&y are the coordinates.

SO GIVEN EQUATION:- 2x - 3y + 36 = 0

WE CAN SOLVE THIS TO CHANGE IN FORMAT OF STANDARD EQUATION

2x - 3y + 36 = 0 \\ 2x + 36 =3y \\ y =  \frac{2}{3} x +  \frac{36}{3}  \\ y =  \frac{2}{3} x +  \frac{ \cancel{36}^{ \:  \: 12} }{ \cancel3}  \\ y =  \frac{2}{3} x +  12 \\

SO :-

m =  \frac{2}{3}  \\ y - intercept = 12 \: ans

slope =  \frac{y2 - y1}{x2 - x1}  \\  \frac{2}{3}  =  \frac{0  - 12}{x  - 0}  \\ 2x = ( - 12) \times 3 \\ x =  \frac{ -  \cancel{12}^{ \:  \: 6} \times 3 }{ \cancel{2}} \\  x =  - 18 \:  \: ans

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3 years ago
Ellianna made a scatter plot that showed a positive association and had one outlier. Write a possible scenario for Ellianna's sc
zzz [600]

Answer:

not sure ask teacher for help

Step-by-step explanation:

ok

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3 years ago
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