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ch4aika [34]
3 years ago
14

Someone please help a) Solve the problem correctly by completing the square.

Mathematics
2 answers:
jolli1 [7]3 years ago
5 0

Answer:

X=4/7

Step-by-step explanation:

Firlakuza [10]3 years ago
4 0

Answer:

Step-by-step explanation:

x^2-4/7x-12/49=0

x= 6/7 and -2/7

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1 PERFORMANCE - Essay
Amiraneli [1.4K]

Answer:

Thus the length = 230 and width = 90.

Step-by-step explanation:

Farmer Fernanda wants to put a fence around her rectangular field. The length of the field is 40 feet less  than 3 times the width.

She has 320 feet of fencing.

Let the length of the rectangular fence be x and the width of the fence be y.

Then the relation between them is

x = 3y - 40

Also x + y = 320

Solving these equations,

320 - y = 3y - 40

4y = 360

y = 90

x = 230

Thus the length = 230 and width = 90.

7 0
3 years ago
1 and 1 4th as a decimal
Neporo4naja [7]
1 + 0.25 will equal 1.25
7 0
3 years ago
Solve the simultaneous equations: <br> 5x + 2y = 17<br> 4x + y = 10
erik [133]

Answer:

(1, 6 )

Step-by-step explanation:

5x + 2y = 17 → (1)

4x + y = 10 → (2)

Multiplying (2) by - 2 and adding to (1) will eliminate the y- term

- 8x - 2y = - 20 → (3)

Add (1) and (3) term by term to eliminate y

- 3x + 0 = - 3

- 3x = - 3 ( divide both sides by - 3 )

x = 1

Substitute x = 1 into either of the 2 equations and solve for x

Substituting into (1)

5(1) + 2y = 17

5 + 2y = 17 ( subtract 5 from both sides )

2y = 12 ( divide both sides by 2 )

y = 6

solution is (1, 6 )

8 0
3 years ago
What is the value of Negative 4 squared + (5 minus 2) (negative 6)? –34 –2 10 34
kaheart [24]

Answer:

The Answer is -34 (Negative 34)

Letter Choice A

Step-by-step explanation:

Hope it helped!!

7 0
3 years ago
Harlene tosses two number cubes. If a sum of 8 or 12 comes up, she gets 9 points. If not, she loses 2 points. What is the expect
Alisiya [41]
<span>It's easy enough. Solving looks like that: p(roll of 8)+p(roll of 12) =</span>\frac{5}{36} + \frac{1}{36} = \frac{1}{6} ; \frac{1}{6} *9 +\frac{5}{6}*2 = \frac{3}{2} - \frac{5}{3} = -\frac{1}{6} Hope everything is clear.
5 0
4 years ago
Read 2 more answers
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