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r-ruslan [8.4K]
3 years ago
11

Rewrite the equation 8x + 6x^2 -7=x^2 in standard form and identify a, b, and c.

Mathematics
1 answer:
Vladimir79 [104]3 years ago
6 0

Answer:

5x^2+8x-7=0\\a=5\\b=8\\c=-7

Step-by-step explanation:

The standard form of a quadratic is ax^2+bx+c=0. You need to subtract the x^2 from the right to set the quadratic equal to 0. Then a,b, and c are equal to the values of the coefficients in front of the terms.

If this helped, a brainliest would be greatly appreciated!

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Rápido y fácil, trigonometría. Urgente porfavor
enot [183]

Answer:

The angle \theta measures approximately 28.81^o

Step-by-step explanation:

Since this problem involves the finding of an angle in a right angle triangle for which we know the opposite side and the adjacent side, the trigonometric function that relates them is the tangent:

tan(\theta)=\frac{opposite}{adjacent}

Then, for our case we get a starting equation that reads:

tan(\theta)=\frac{opposite}{adjacent} \\tan(\theta)=\frac{7.7}{14}

and for which we need to solve for \theta. Then we use the arctangent function to get the final answer:

tan(\theta)=\frac{7.7}{14} \\\theta=arctan(\frac{7.7}{14})\\\theta= 28.81^o

3 0
3 years ago
Set A contains 35 elements and set B contains 22 elements. If there are 40 elements in (A ∪ B) then how many elements are in (A
Leona [35]

Answer:

17

Step-by-step explanation:

The computation of the number of elements are in (A ∩ B) is shown below;

Given that

Set A contains 35 elements

And, set B contains 22 elements

Now if there are 40 elements in (A ∪ B)

So, the number of elements are in (A ∩ B) is

= 35 + 22 - 40

= 17

5 0
3 years ago
Simplify the exponential expression.
MrRa [10]

Answer:

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Step-by-step explanation:

7 0
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Write the equation of a circle with center M(2,6) and a radius of 4
ycow [4]

Answer:

(x -2)^2 + (y-6)^2 = 16

Step-by-step explanation:

The equation of a circle is of the form

(x-h)^2 + (y-k)^2 = r^2

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(x- 2)^2 + (y-6)^2 = 4^2

(x -2)^2 + (y-6)^2 = 16

7 0
3 years ago
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Sladkaya [172]

Any number that you can completely write down on paper using digits ... and a fraction bar or decimal point if necessary ... is a rational number.  If you add it to 0.5, then the sum is another rational number.

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3 years ago
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