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ch4aika [34]
3 years ago
13

Solve for x....................

Mathematics
2 answers:
Elodia [21]3 years ago
8 0

Answer:

The answer is A

Step-by-step explanation:

...Im not rlly that useful rn, sorry...!

I have a TI-84 graphing calculator that has a polynomial app solver on it, and i often use that since im not in algebra anymore. (i forgot how to do decomposition)--->

I do know you must use decomposition for this, or you can use the quadratic formula to substitute.

quadratic formula:


Aleks04 [339]3 years ago
6 0

Answer:

Option A , x = 7/5 and x= -1

Step-by-step explanation:

Formula: Let ax² + bx + c = 0 be the quadratic equation,

x = [-b±√(b²-4ac)]/2a

The given quadratic equation be

5x² -2x = 7

⇒ 5x² -2x - 7 = 0  

a = 5, b = -2 and c = -7

Therefore x =[-b±√(b²-4ac)]/2a

x=[-(-2) ±

√((-2)²-4*5*(-7))]/2*5

x =[2 ± √144)]/10

x =[2 ± 12)]/10

x = (2+12)/10 and x = (2-12)/10

x = 14/10 = 7/5 and x= -12/10 = -1

Therefore,the correct answer is Option A , x = 7/5 and x= -1

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Find the length of AB , given that DB is a median of the triangle and AC = 50.
natta225 [31]
Since DB is the median of the triangle, it would bisect the base AC. This would mean that AB and BC are equal halves of the whole AC. So, if AC is 50, then,

AC = AB + BC
since AB = BC,
AC = 2AB
50 = 2AB
AB = 50/2
AB = 25

The answer is 25.
4 0
4 years ago
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A farmer needs to deliver 1,227 pieces of fruit to the farmers market by the afternoon Each crate holds 163 piece of both orange
bogdanovich [222]

Answer

7.53

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1,227÷163= 7.53 so then you would go

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6 0
3 years ago
Linda made $180 for 12 hours of work.
Vinil7 [7]

Answer:

I believe its 9 hours.

Step-by-step explanation:

Divide 180 by 12 to get 15

So Linda makes 15 dollars an hour

Then divide 135 by 15 to get 9

Linda would need to work 9 hours to get $135

6 0
3 years ago
How do I solve this?
vladimir1956 [14]

Answer:

3p³ + 2p² – 3p – 11

Step-by-step explanation:

From the question given above, the following data were obtained:

Side 1 (S₁) = –1(p + 5)

Side 2 (S₂) = 2(p² – 3)

Side 3 (S₃) = 3p³ – 2p

Perimeter (P) =?

The perimeter of the triangle can be obtained as follow

P = S₁ + S₂ + S₃

P = –1(p + 5) + 2(p² – 3) + 3p³ – 2p

Clear bracket

P = –p – 5 + 2p² – 6 + 3p³ – 2p

Rearrange

P = 3p³ + 2p² – 2p – p – 6 – 5

P = 3p³ + 2p² – 3p – 11

Therefore, the perimeter of the triangle is 3p³ + 2p² – 3p – 11

4 0
3 years ago
All organisms are made of cells. __________<br><br> Is it a fact,hypothesis,theory,or law
Damm [24]

Answer:

fact

Step-by-step explanation:

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4 0
3 years ago
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