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hjlf
3 years ago
5

When the sum of 7 and twice a positive number is subtracted from the square of the​ number, 0 results. find the number?

Mathematics
1 answer:
Lilit [14]3 years ago
3 0
<span>x^2 - (7 + 2x) = 0
x^2 - 2x - 7 = 0
Solve this using the quadratic equation, only the positive solution is wanted</span>
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What does j divided by 9 is 5 mean
MAVERICK [17]

Answer:

what number divided by 9 is 5? answer is 45

Step-by-step explanation:

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3 years ago
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Hamish and hairy work as plumbers. Harry earns a dollar more than 5/4 The amount Hamish orange per hour. The amount Harry earns
Mnenie [13.5K]

Answer:

Harry earns 26 and Hamish earns 20

Step-by-step explanation:

The computation of the amount earned by each one of them is shown below:

Let us assume the hairy be Y

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And, it is $2 less than  7/5

So, the equation would be

y = 1.25m + 1  ...........................(i)

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6 0
3 years ago
Can someone please help me it’s urgent
Yuki888 [10]
I believe it is 4 my good sir
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The exchange rate at the post office is £1 = €1.17. How many euros do I get for £280?
lidiya [134]

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Step-by-step explanation:

5 0
2 years ago
M. Score: 0 of 1 pt
beks73 [17]

Answer:

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Step-by-step explanation:

You can use divisibility rules to find the small prime factors.

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795 = 3×5×53

_____

* If this were not prime, it would be divisible by a prime less than its square root. √53 ≈ 7.3. We know it is not divisible by 2, 3, or 5. We also know the closest multiples of 7 are 49 and 56, so it is not divisible by 7. Hence 53 is prime.

5 0
3 years ago
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