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weeeeeb [17]
3 years ago
8

Hi can someone please help me I really need help please help me please

Mathematics
1 answer:
garik1379 [7]3 years ago
3 0

Answer:

-3/500, Celsius per meter

Step-by-step explanation:

Slope: \frac{y_{2} - y_{1} }{x_{2}-x_{1}  }

Slope = 25-13/ 200-2200= -12/2000=  -3/500

Rate of change. Celsius per meters (?) I'm not sure about that.

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Solve the following simultaneous linear equations.<br>2x + y = 5<br>4x – 3y = -10​
Jet001 [13]

Answer:

(1/2,4)

Step-by-step explanation:

First, determine y in first equation: 2x+y=5 or  y=5-2x

replace value of y determined in first equation (5-2x) into 2nd equation    

4x-3(5-2x)=-10

4x-15+6x=10

10x=5

x=1/2

put value of x into either equation to solve for y so

2(1/2)+y=5

1+y=5

y=4

answer: x=1/2, y=4

check answer by substituting x and y into either equation:

4x-3y=-10

4(1/2)-3(4)=-10

2-12=-10

-10=-10

or

2x+y=5

2(1/2)+4=5

1+4=5

5=5

7 0
3 years ago
⫅ what does this symbol mean
damaskus [11]
Equality between the values, equations, or expressions written on both sides.
6 0
3 years ago
7th GRADE WORK HELPPP!!! ILL BRAINLIST!!!
Ksenya-84 [330]

Answer: Rachel's prediction is faster than the actual unit rate, and Theadore's prediction is slower.

6 0
3 years ago
Read 2 more answers
If f(x) = 3x-1 and g(x)= x+2 find (f-g)(x)​
wariber [46]

Answer:

2x-3

Step-by-step explanation:

f(x) = 3x-1

g(x) = x+2

Find (f-g)(x), this means we need to subtract g from x.

(3x-1) - (x+2)

Subtract the like terms:

3x -x = 2x

-1 -2 = -3

Combine them to get 2x-3

7 0
3 years ago
Could you please explain it?
Troyanec [42]
Hello,
there are some words that I could not read. But:
I support evements are independants.
p(s)=0.2
p(l)=1-0.2=0.8 l=lose

1)0.8*0.2=0.16

2) 0.8²*0.2=0.128

3) 0.8^3*0.2=0.1024

4) 0.2*0.8^(n-1)

6 0
3 years ago
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