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liubo4ka [24]
3 years ago
13

Problem

Mathematics
1 answer:
Nitella [24]3 years ago
8 0

Answer:maybe 29

Step-by-step explanation:

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Hello there!
Goryan [66]

(x^2+3)^2 + 7x^2+21=-10

We want to convert this equation in terms of m, where m = x^2+3

While solving this problem, I instantly noticed the x^2+3 in the first term of the equation. Replace that with m.

m^2 + 7x^2+21=-10

Simplifying the rest is not as obvious. Using the distributive property, we can change [7x^2+21] to [7(x^2+3)]

Do you see the "m" in here? Look again if you don't.

Now we can simplify the equation to m^2 + 7m=-10 and this cannot be simplified further.

I'm always happy to help someone who appreciates the help! :D

6 0
3 years ago
Read 2 more answers
Frank can mow lawns at a constant rate of 6/5 lawns per hour. what is the ratio of lawns to hours?
Igoryamba

Answer:

6 : 5

Step-by-step explanation:

Rate = \frac{6}{5}

But Rate is also equal to number of lawns mowed in a certain amount of time.

Since ratio should always be in terms of simple whole numbers.

If 6/5 lawns are mowed in 1 hour, then,

6 lawns will be mowed in:

=\frac{6 \times 1}{\frac{6}{5} }

= 5 hours.

therefore, 6 laws will be mowed in 5 hours.

Ratio of lawns to hours in 6:5

6 0
3 years ago
For which acute angle are the sine of the angle and cosine of the angle equal?
viva [34]
Sin = opposite/hypotenuse
cos = adjacent/hypotenuse

They are the same when opposite equals adjecent.
This only occurs when the angles are equal.

Answer: 45°
3 0
3 years ago
Read 2 more answers
Que es una ecuación cuadrática
saveliy_v [14]

Step-by-step explanation:

En álgebra, una ecuación cuadrática es cualquier ecuación que se puede reorganizar en forma estándar como ax ^ {2} + bx + c = 0 donde x representa una incógnita, y a, byc representan números conocidos, donde a ≠ 0. Si a = 0, entonces la ecuación es lineal, no cuadrática, ya que no hay término ax ^ 2.

3 0
3 years ago
There are eight swans swimming on a pond and four of those swans are
Fiesta28 [93]

Answer: A. (4/8)

Step-by-step explanation: If there is 4 black swans and 8 swans in total you could see it's 4 black swan out of 8 total swans. You could do

8/8 - 4/8 = 4/8 to find out the answer too.

4 0
2 years ago
Read 2 more answers
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