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Katyanochek1 [597]
2 years ago
12

What is the sum of 2.5 × 104 and 3.4 × 104?

Mathematics
2 answers:
Bond [772]2 years ago
7 0
260 + 353.6 = 613.6 that's your answer
steposvetlana [31]2 years ago
7 0
613.6 would be the answer. I got it by multiplying 2.5 and 104 together to get 260, then I multiplied 3.4 and 104 together getting 353.6. I then added 260 and 353.6 together to get 613.6.


2.5 * 104 = 260
3.4 * 104 = 353.6
353.6 + 260 = 613.6
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Solve 240 = 6z + c for 'c'.<br><br> show steps please
Lunna [17]

There are two ways to find or determine for the value of c. In the first method, we can use addition and subtraction to isolate the variable c from the other variables. In the second method, we can use the transposition of variables to isolate the variable c from the other variables.

So solving for the value of c:

 

<span>Using 1st method: Addition and Subtraction</span>

We are given:

240 = 6 z + c

Simply subtract 6 z on both sides:

240 – 6 z = 6 z + c – 6 z

Cancelling 6 z – 6 z on the right side:

240 – 6 z = c

or

c = 240 – 6 z

 

<span>Using the 2nd method: Transposition</span>

240 = 6 z + c

What we are going to do here is to simply transpose the variable 6 z from the right side to the left side of the equation so that we are left with c alone on the right side. Always remember that when we transpose, the symbol becomes opposite. That is:

240 + (- 6 z) = c

240 – 6 z = c

or

<span>c = 240 – 6 z</span>

6 0
3 years ago
C and D are mutually exclusive events. Find P(C or D).<br> P(C)= 3/7= P(D)= 4/7<br> P(C or D)
IgorLugansk [536]

Answer:

P(C\ or\ D) = 1

Step-by-step explanation:

Given

P(C) = \frac{3}{7}

P(D) = \frac{4}{7}

Required

P(C\ or\ D)

Since the events are mutually exclusive, then:

P(C\ or\ D) = P(C) + P(D)

So, we have:

P(C\ or\ D) = \frac{3}{7} + \frac{4}{7}

Take LCM

P(C\ or\ D) = \frac{3+4}{7}

P(C\ or\ D) = \frac{7}{7}

P(C\ or\ D) = 1

3 0
2 years ago
Helpppp plsssss someone !!!!!
Ilia_Sergeevich [38]
The answer is b I really. Don’t know don’t trust me
5 0
3 years ago
Determine the average rate of change, in gallons of gas per year, from 1960 and 1999 and then determine what the result means in
alisha [4.7K]

Answer:

D-step explanation:

None just guessed

6 0
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What is the value of x if y = 4
enyata [817]

Answer:

x is infinite

Step-by-step explanation:

x is a function so

if y=f:x

therefore

0 < x <  \infty

5 0
2 years ago
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