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Elanso [62]
3 years ago
13

Solve the quadratic equation by completing the square.

Mathematics
1 answer:
jarptica [38.1K]3 years ago
8 0

Exact Form:

x

=

9

±

√

3

Decimal Form:

x

=

10.73205080

,

7.26794919

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Please help!!!!! thank u!!
Naddika [18.5K]
Set each piece = to 56, assuming that the 2 variables for which you are not solving are each equal to 0.

7x -2(0)-14(0) = 56
7x=56 (divide each side by 7)
X = ?
(__, 0, 0)

7(0) - 2y - 14 (0) = 56
-2y = 56 (divide each side by -2)
Y= ?
(0, __ , 0)

7(0) - 2(0) - 14z = 56
-14z = 56 (divide each side by -14)
z = ?
(0, 0, __)
4 0
3 years ago
A restaurant has 26 tables in its dining room. It takes the waitstaff 10 minutes to clear and set 4 tables. At this rate, how lo
lutik1710 [3]
Well, its 10 for 4. so 8 is 20, 12 is 30, 16 is 40 20 is 50, and 24 is 1 hour, 2 tabels is half the time so 5 min... so it would take -1 hour and 5 min
5 0
3 years ago
Read 2 more answers
For a sample size n = 24 and a population parameter of p = 0.4, a normal curve can be used to approximate the sampling distribut
Kipish [7]

Answer:False

Step-by-step explanation:

6 0
3 years ago
What do you have to do to each side to solve x – 4 ≤ 3?
VashaNatasha [74]

Answer:

x - 4 means that the answer will be greater than 3 so the answer could probably, don't take me up on it but it, should be 4 but that is just what my questions answer was. Hope it helps!!!

3 0
3 years ago
Two circles are concentric if they have the same center.
vaieri [72.5K]

The equation of the circle is (x - 4)² + (y - 6)² = 16. The correct option is the second option (x - 4)² + (y - 6)² = 16

<h3>Equation of a circle </h3>

From the question, we are to determine the equation of the circle

The equation of circle is given by

(x - h)² + (y - k)² = r²

Where (h, k) is the center

and r is the radius

From the given information,

The two circles are concentric

∴ (h , k) = (4, 6)

But the other circle has a radius that is twice as large

∴ r = 2 × 2

r = 4

Thus,

The equation of the circle becomes

(x - 4)² + (y - 6)² = 4²

(x - 4)² + (y - 6)² = 16

Hence, the equation which represents a circle that is concentric with the circle shown but has a radius that is twice as large is (x - 4)² + (y - 6)² = 16. The correct option is the second option (x - 4)² + (y - 6)² = 16

Learn more on Equation of a circle here: brainly.com/question/1506955

#SPJ1

8 0
2 years ago
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