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Solnce55 [7]
3 years ago
9

Someone help me with question 2???

Mathematics
1 answer:
postnew [5]3 years ago
5 0
Surface area is the area of all the surfaces we can touch
2a)
1/2*5*3+1/2*4*3+6*4+6*5 which is
67.5

b) 2*(1/2*10*6)+12*6+12*10 which is
252
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4x−2y=14 y=12x−1 solve by substitution
Tatiana [17]

Answer:

x= -3/5

Step-by-step explanation:

4x-2y=14

y=12x-1

4x-2(12x-1)=14

4x-24x+2=14

4x-24x=12

-20x=12

×= -12/20

x= -3/5

8 0
3 years ago
Evaluate g(x) = 2x - 7 over the domain (2, 4, 6, 8) what is the range of g(x)
Elanso [62]

Answer:

-3, 1, 5, 9

Step-by-step explanation:

2(2) - 7 = -3

2(4) - 7 = 1

2(6) - 7 = 5

2(8) - 7 = 9

8 0
3 years ago
What is the square root of 10, and 9?
Orlov [11]
The answer is 3 and 3.16227766017
3 0
2 years ago
Read 2 more answers
(8+4∙5)∙10+5∙4∙25∙2=
Lapatulllka [165]

1280 Is the correct anwser

5 0
3 years ago
Read 2 more answers
Suppose that a household's monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hu
dolphi86 [110]

Answer:

The monthly cost for 9 HCF is $38.54

Step-by-step explanation:

<em>The graph is missing; however, the question can still be solved</em>

Given

Slope = 1.55

When monthly cost = $47.84, Amount of water = 15 HCF

Required

Determine the monthly cost for 9 HCF

From the question, we understand that it is a linear function;

Linear functions are of the form

y = mx + b

Where y is the function of x and m is the slope

In this case; the function is the monthly water bill

and x is the amount of water

Solving for b

When monthly cost = $47.84, Amount of water = 15 HCF

The function is as follows;

47.84 = 1.55 * 15 + b

47.84 = 23.25 + b

Subtract 23.25 from both sides

47.84 - 23.25= 23.25 - 23.25 + b

24.59 = b

b = 24.59

Solving for the monthly cost for 9 HCF

Here, we have that

x = Amount\ of\ water = 9

m = Slope = 1.55

b = 24.59

Substitute these values in the linear function; y = mx + b

y = 1.55 * 9 + 24.59

y = 13.95 + 24.59

y = 38.54

<em>Hence, the monthly cost for 9 HCF is $38.54</em>

5 0
3 years ago
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