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Romashka [77]
3 years ago
7

A close system is internal energy changes by 178 J as a result being heated with 658 J of energy the energy used to work by the

system is blank
Mathematics
1 answer:
Alex_Xolod [135]3 years ago
8 0
The answer to your question is 480 J.
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If the function h is defined by h(x)=<img src="https://tex.z-dn.net/?f=x%5E%7B2%7D" id="TexFormula1" title="x^{2}" alt="x^{2}" a
harkovskaia [24]

Given:

The function is:

h(x)=x^2-3x+5

To find:

The value of h(2x+1).

Solution:

We have,

h(x)=x^2-3x+5

Putting x=2x+1, we get

h(2x+1)=(2x+1)^2-3(2x+1)+5

h(2x+1)=(2x)^2+2(2x)(1)+(1)^2-3(2x)-3(1)+5

h(2x+1)=4x^2+4x+1-6x-3+5

On combining like terms, we get

h(2x+1)=4x^2+(4x-6x)+(1-3+5)

h(2x+1)=4x^2-2x+3

Therefore, the required function is h(2x+1)=4x^2-2x+3.

3 0
3 years ago
True or false , help please lol
Ilya [14]

False

I think its false

8 0
3 years ago
Help me please!!..,,
kari74 [83]

Answer:

A.

Step-by-step explanation:

1.5 x 0.1 = 0.15

0.15 inches

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5 0
4 years ago
The ratio of girls to boys in the grade is 9 to 10. If there are 225 girls, how many boys are there?
MArishka [77]

Answer:

250 boys

Step-by-step explanation:

We know that the ratio is 9:10 from girls to boys

Take 225 and divide it by 9

225 ÷ 9 = 25

So we know that 25 is a factor of 225

We can the number of boys and multiply it by 25 to get 250

If we put it in the ratio form:

225:250 = 9/10

Check work:

25 x 9 = 225

25 x 10 = 250

5 0
4 years ago
Read 2 more answers
Point T has coordinates (-3, 4). If it was reflected over the x-axls, what were the coordinates of its pre-image?​
kotykmax [81]

Answer:

(3,4)

Step-by-step explanation:

7 0
3 years ago
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