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Bas_tet [7]
2 years ago
8

write an equation that demonstrates the relationship between x and y for the points plotted on the coordinate grid ​

Mathematics
1 answer:
svetoff [14.1K]2 years ago
5 0
Answer: y=3x-7

Explanation:

The y-intercept is -7 and the line is going up by a rate of 3.

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This prism has a surface area of 172 cm². What would the surface of the prism be if each dimension was tripled? ( Scale factor i
Alex787 [66]

Answer:

1356 cm²

Step-by-step explanation:

Each dimension gets multiplied by 2, so the new dimensions are

changed from 2x8x7 to 6x24x21

There are 6 faces to the prism,

The area of the front and back are 6x21 = 126.  There are 2 of them for a total area of 126x2 = 252 cm²

The are of the left and right sides are 24x21 = 504.  There are 2 of them for a total area of 504x2 = 1008 cm²

The area of the top and bottom are 6x24 = 144, there are 2 of them for a total area of 144x2 = 288 cm²

The total surface area is 252 + 1008 + 96 = 1356 cm²

7 0
3 years ago
the first term in a geometric series is 64 and the common ratio is 0.75. Find the sum of the first 4 terms in a series.
Rufina [12.5K]

hi

u0 = 64       with  u(n+1) = un *0.75  

u3 =  64 *0.75^3   = 27

sum is :      64 *  ( 0.75^4 -1)  / 0.75-1  = 175

manual proof :    64 + 48+36+27 = 175

6 0
3 years ago
A yard fabric costs $12.99. How much will 2 feet cost?
Angelina_Jolie [31]
8.66, you divide 12.99 into 3 and then multiply the result which is 4.33 by 2
3 0
3 years ago
How many cords would a pile 4 feet wide, 16 feet long, and 4 feet high contain?
nirvana33 [79]
To get the volume of the pile it is 4 x 4 x 16 so if each cord is =to 1 then the answer is 256
3 0
3 years ago
The temperature T in degrees Celsius of a liquid t minutes after heating is given by the formula T=8√t. When is the temperature
Advocard [28]
T=8√t
T=temperature
t=time in minutes.
If T=48, we have to calculate the time.

48=8√t
(48)²=(8√t)²
2304=64t
t=2304 / 64=36

answer: 48 degrees Celsius will be reached in 36 minutes. 
3 0
3 years ago
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