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MrRissso [65]
3 years ago
8

Need help ASAP i am timed

Mathematics
1 answer:
Nadya [2.5K]3 years ago
8 0
A
B
Just search it up on a math website or sum
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State the number of real zeros and what they are for "3x^2+5x-2" pleas help me:'(
Lady bird [3.3K]
This can be solved by factoring.

First, set the expression equal to zero.

3x^2+5x-2=0

Then, find two the factors of  ac whose sum is b.

6, -1

Split b into these two factors.

3x^2+6x-x-2=0

Next, factor by grouping.

3x(x+2)-1(x+2) = (3x-1)(x+2) = 0

By the Zero Product Property, set each factor equal to zero.

3x-1 = 0 \\ x = 1/3

x+2=0 \\ x = -2

These are the solutions. The Complex Conjugate Root Theorem and the Fundamental Theorem of Algebra both state that, in essence, real and imaginary solutions come in pairs of two and every polynomial of degree n has exactly n complex roots, but real roots are also complex roots. That sounds confusing, but this just means that you're done. Your answers are -2 and 1/3. There are two real roots.
3 0
3 years ago
What two numbers multiply to negative 8 but add to negative 7
Amiraneli [1.4K]
Let "a" and "b" be the two numbers
So a*b=-8 and a+b=-7
Therefore S=-7 and P=-8
Using (x^2)-S+P=0 => (x^2)-(-7)+(-8)=0 => (x^2)+7-8=0
By factorizing we get (x+8)(x-1)=0
So a can be either -8 or 1 and b can be 1 or -8 
Meaning that the two numbers are -8 and 1.
6 0
3 years ago
Please help ( 20 points )
VashaNatasha [74]

Answer:

1+pi/2, 5/2, square root of 12-1, 2.25. Let me know if this is correct!


Step-by-step explanation:


7 0
3 years ago
Ttm question need help
azamat

Answer:

The first option is the correct answer

Step-by-step explanation:

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OCHO niños seleccionados al azar para ir en un carro alegorico en un desfile pesan: 62, 54, 85, 50, 76, 49, 66 y 70 libras. A) C
Alina [70]

Answer:

Step-by-step explanation:

bjsjbkj is muisjm  isu auisbm buis iusa uisb sui ausius suasu su usma usus  usausus ususinuhsshsu u su su suususujsusubsubs busbusus su susbu susu su susbu sub su su us us u u us u aubs aubs ua us auud snud .sus m ;usndiu smudiiiiiii msuidb smuid smiusd smkiudbsiud bsiudb siu basdu

poda lusu koothi

3 0
3 years ago
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