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noname [10]
2 years ago
7

Two four digit numbers abcd and efgh are constructed using the digits from 1 to 8. [a. b. c. d. e. f. g and h are the digits of

the two four digit numbers] It is found that abcd x 2 = efgh. Find the numbers.
Mathematics
1 answer:
NeX [460]2 years ago
4 0

Answer:

that is your answer on the picture

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Which of the following are solutions to the equation below?
Natasha2012 [34]
Both A and C would be solutions to the equation.

In order to solve for this you must first get the equation equal to 0. 

2x^2+5x+8=6 ----> subtract 6 from both sides
2x^2 + 5x + 2 = 0

Now knowing this we can use the coefficients of each one in descending order of power as a, b and c. 

a = 2 (because it is the coefficient to x^2)
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Now we can plug these values into the quadratic equation. 

\frac{-b +/- \sqrt{b^{2} - 4ac } }{2a}

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\frac{-5 +/- 3 }{4}

\frac{-5 + 3 }{4} or -1/2 for the first answer

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5 0
3 years ago
The graph models how the temperature of a city has changed since sunrise. Select from the drop-down menu to interpret the positi
Tanya [424]

Answer: The correct answer is the 3rd choice.

5h after sunrise until 15h after sunrise.

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4 0
3 years ago
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6 0
3 years ago
The profit P (in hundreds of dollars) that a company makes depends on the amount x (in hundreds of dollars) the company spends o
pishuonlain [190]
The profit:
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The maximum profit will be at the vertex :
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The amount of money that will yield a maximum profit is $8,000. 
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3 years ago
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zysi [14]

Answer:

Yes it is.

Step-by-step explanation:

When we mix Fe(iron) to CuSO⁴ (Copper sulphate), Iron removes copper from CuSO⁴ and makes FeSO⁴. This happens because iron is more reactive than copper. We cannot remove iron from this solution now until any stronger element is added.

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3 years ago
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