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Ber [7]
2 years ago
8

I need help please!!

Mathematics
1 answer:
vivado [14]2 years ago
4 0

Answer:

b.

Step-by-step explanation:

15 .12.9the sum of 5 4.3

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How much energy would a 15,000 g block of ice need to absorb in order to
Sergeu [11.5K]

Answer:

The energy a 15,000 g block of ice will absorb in order to melt is 4995 kJ

Step-by-step explanation:

The question relates to the latent heat of fusion of ice, that is the heat absorbed by the solid ice to convert it to liquid water without changing its temperature.

The formula for the energy required to melt the ice is presented as follows;

Energy required = Mass, m × Latent heat of fusion, L_f, of ice

Hence, the mass, m, of the ice = 15,000 g

Latent heat of fusion, L_f, of ice = 333 J/g

Therefore;

Energy required = 15,000 g × 333 J/g = 4995000 J

Hence;

The energy a 15,000 g block of ice will absorb in order to melt = 4995000 J

1000 J = 1 kJ

1 J = 1/1000 kJ

Therefore, 4995000 J = (4995000 J)/(1000 J/kJ) = 4995 kJ.

Which gives;

The energy a 15,000 g block of ice will absorb in order to melt = 4995 kJ.

8 0
3 years ago
PLEASE HELP!! DUE SOON
mrs_skeptik [129]

Answer:

b=3a/8

a=8b/3

Step-by-step explanation:

b/a=k ( k is the constant proportional)

3/8=9/24=15/40

b/a=3/8

b=3a/8

a=8b/3

I hope this is right answer

7 0
3 years ago
Which of the following is a factor of 2xy + 8y − 8x − 32?
melamori03 [73]

We are given

2xy+8y-8x-32

We can write it as

=2y*x+2y*4-8*x-8*4

we can see that 2y is in first two terms

and -8 is in last two terms

so, we can factor it out

=2y(x+4)-8(x+4)

now, we can see that x+4 is common in both terms

so, we can factor it out

=(x+4)(2y-8)

we can see that

x+4 is one of factor of terms

so, option-B..........Answer

7 0
3 years ago
Determine the slope of a line that is perpendicular to the line y = -2x + 7
xxTIMURxx [149]

Answer:

C)

Step-by-step explanation:

Perpendicular means negative reciprocal of the current slope.

And the negative reciprocal of -2 is 1/2.

5 0
3 years ago
How do you solve 6=3+5(y-2)
Harlamova29_29 [7]

Answer:

y= 2,75

Step-by-step explanation:

6 = 3 + 5 (y-2)

6=8(y-2)

6/8=y-2

¾=y-2

0,75+2=y

y= 2,75

4 0
3 years ago
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