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kotykmax [81]
3 years ago
9

What multiplies to be 1/4 but adds to be 1

Mathematics
1 answer:
kati45 [8]3 years ago
6 0
Let x be that number.
Let's create a system using what we have:
x^2 = 1/4 (1)
x+x = 1 (2)

In the equation (1):
x^2 = 1/4
So x = √1/4 = 1/2 OR x = -√1/4 = -1/2
Since the answer in the second equation is positive, so the acceptable answer is x = 1/2.
So the number that multiplies to be 1/4 but adds to be 1 is 1/2.

You can re-check your answer (very important):
x^2 = (1/2)^2 = 1/4
x+x = 1/2 + 1/2 = 1
The answer has been approved.

Hope this Helps! :)
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Can someone please help me
cupoosta [38]

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so .75 * 850 = the gallons, so just take the number of hours and multiply it by 850 to get your gallons

0.25 x 850 = 212.5

1.5 x 850 = 1,275

2.5 x 850 = 2,125

1b) the unit rate is 850

1c) 5.5 x 850 = 4,675 gallons

1d) So 850 gallons can be filled in an hour, you only need 100 gallons

850/100 = 17/2 (simplified)

17 gallons/hour 60 minutes

------------------------- x ---------------------

2 gallons 1 hour

the gallons cancel out and the hours cancel out which leaves us with:

17 x 60 = 1,020 / 2 = 510

510 minutes

2) I don't know how to do two sorry

5 0
3 years ago
the average of the five number was 6.8. If the first four numbers were 4.3, 5.2, 7, and 6.8, What was the fifth number?
Nikolay [14]
Let x be the fifth number
\frac{4.3 + 5.2 + 7 + 6.8 + x}{5} = 6.8
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6 0
3 years ago
What is the surface area of the outside of a cube shaped closed-top water tank whose edge length is 7.2 ft? Drag and drop the co
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The surface area of a cube is:

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3 0
3 years ago
In which of the expressions below will x = 2.5? Select all that apply. A) 10x+209=5 B) 10x–12=38 C) 9x+18=45 D) 6x=15 E) 12x–4=2
Vinil7 [7]

Answer:

Step-by-step explanation:

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tia_tia [17]

Answer:

The largest possible number of x intercept is 9 while the largest possible number of relative max/min is 8

Step-by-step explanation:

For any polynomial of degree n with distinct and real solutions, it can have at most n different x intercepts. This would imply it can have at most 9 distinct real solutions.

It can also have at most n-1 relative max/min in alternating order. This is best illustrated when such polynomial is sketched on a graph.

For example a quadratic expression is a polynomial of degree 2 and has at most 2 distinct solutions and 1 relative max/min.

In this question, for the polynomial, its degree (n) = 9

So it can have at most 9 x intercepts and at most 8 relative max/min.

3 0
3 years ago
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