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Yanka [14]
4 years ago
9

What number must you add to complete the square? x^2+14x=-7

Mathematics
2 answers:
viktelen [127]4 years ago
6 0
To complete the square of a polynomial, use the term "(b / 2) ^ 2".

In this polynomial, the "b" term is 14.
Plug that in.

(14 / 2) ^ 2
7 ^ 2

49.

The answer is C.
adoni [48]4 years ago
3 0
First you need to divide b by 2a.
14/2(1)
14/2 = 7

Then square that number you got.

7^2 = 49

The answer is C. 49.
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Help w #5 !! will mark brainlist
iris [78.8K]

The sum that represents the number of tickets sold if 35 tickets were sold Monday, half of the remaining tickets were sold on Tuesday and 14 tickets were sold on Wednesday.

To start solving this, we can assign t as the variable to the total number of tickets that were sold. So, t = 35 (for Monday) + (t - 35)/2 (for Tuesday) + 14 (for Wednesday). To solve this, we can say t = 49 + (t - 35)/2, or 2t = 98 + t - 35, which equals t = 63. Therefore, 63 tickets were sold total.

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3 years ago
Find the percentage error |sinθ - θ|/sin(θ)*100 this approximation introduces for an angle of 0. 020 radians.
Elza [17]

Considering the given angle and the given formula, it is found that the percentage error for an angle of 0.02 radians is of 0.0067%.

<h3>What is the percentage angle for an angle?</h3>

For an angle \theta, it is given by the following formula:

P = 100\frac{|\sin{\theta} - \theta|}{\sin{\theta}}

In this problem, the angle is of \theta = 0.02, hence:

P = 100\frac{|\sin{0.02} - 0.02|}{\sin{0.02}}

P = 0.0067

The percentage error for an angle of 0.02 radians is of 0.0067%.

More can be learned about percent error at brainly.com/question/25224978

8 0
2 years ago
What is the sum of 6 of the interior angles of a regular octagon?
goldenfox [79]

Answer:

The sum of the measures of the interior angles of an octagon =(8−2)180° . The sum of the measures of the interior angles of an octagon is 1080° .

6 0
3 years ago
F(x)=1/2x+4 and g(x)=−8f(x). What equation shows the correct rule for the function g? A. g(x)=−8x−32. B. g(x)=−4x+4. C. g(x)=−4x
Alex787 [66]

Answer:

f(x)=1/2x+4.

Step-by-step explanation:

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Y = 4x + .95     is the equation I got
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