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vesna_86 [32]
3 years ago
5

Solve. x² + 5x – 2=0

Mathematics
2 answers:
ExtremeBDS [4]3 years ago
8 0

Answer:

1

Use the quadratic formula

=

−

±

2

−

4

√

2

x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}

x=2a−b±b2−4ac​​

Once in standard form, identify a, b, and c from the original equation and plug them into the quadratic formula.

2

+

5

−

2

=

0

x^{2}+5x-2=0

x2+5x−2=0

=

1

a={\color{#c92786}{1}}

a=1

=

5

b={\color{#e8710a}{5}}

b=5

=

−

2

c={\color{#129eaf}{-2}}

c=−2

=

−

5

±

5

2

−

4

⋅

1

(

−

2

)

√

2

⋅

1

Step-by-step explanation:

this should help

Yuri [45]3 years ago
3 0
Solve the equation for X
by finding A B and c
of the quadratic then applying the quadratic formula.

I hope this helps !!

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Using the diagram below, find x.
Alona [7]

Answer:

x=28

Step-by-step explanation:

we~know~ that~ all~ the~ angles ~in ~a ~triangle ~all~add ~up ~to ~180° That ~means: x + ( 2x + 5 ) + ( 3x + 7 ) = 180.~Since~ addition~ is~ associative,\\~x + ( 2x + 5 ) + ( 3x + 7 ) = 180~ is ~the~ same ~as~ x + 2x + 5 + 3x + 7 = 180.

Combining~ like~ terms,~ we ~get: 6x + 12 = 180.

After~ we ~move~ 12~ to~ the~ other~ side~ so ~the~ x~ is~ iscolated,~ we~ get:\\\ 6x = 168.\\

Dividing~ each~ side~ by~ 6 ~gets~ us ~to~: x = 28, ~so ~the~ answer~ to~ this~ question~ is D.\\

Hope~this~helps!~Have~a~blessed~day~ahead!

-Isabelle~Williams

6 0
3 years ago
Solve 3 x - 9 x + 7 - 3 = -8.
erik [133]

Answer: x=2

3x−9x+7−3=−8

Step 1: Simplify both sides of the equation.

3x−9x+7−3=−8

3x+−9x+7+−3=−8

(3x+−9x)+(7+−3)=−8

−6x+4=−8

−6x+4=−8

−6x+4−4=−8−4

−6x=−12

−6x

−6

=

−12

−6

x=2


3 0
3 years ago
HELP PLEASE THANK U
Solnce55 [7]
This is just my guess but I want to say no they are not similar because the first 10 + 5 = 15
8 + 5 = 13 not 12
To make it similar, 8 needs to be 7. This is ONLY my guess, I’m not 100% confident in my answer
5 0
3 years ago
(50 points!)
Maru [420]

(y x .12) x .3 = the total cost


6 0
3 years ago
Both passages base their arguments on the unstated
Aleksandr-060686 [28]

The correct answer is option c) human cloning is a genuine possibility in the future.

Both passages base their arguments on the unstated assumption that human cloning is a genuine possibility in the future.

Both chapters describe cloning as if it is a foregone conclusion; as if it will occur in the near future. This is the implicit assumption in both paragraphs.

What is human cloning?

Human cloning is the process of creating a genetically identical replica of a human (or clone).

The phrase is most commonly used to refer to artificial human cloning, or the replication of human cells and tissue. It does not relate to identical twins being conceived and delivered naturally.

The prospect of human cloning has sparked debate. Because of these ethical considerations, numerous countries have passed laws prohibiting human cloning.

Therapeutic cloning and reproductive cloning are the two most widely discussed kinds of human cloning. Therapeutic cloning would include cloning human cells for use in medicine and transplantation.

Learn more about human cloning

brainly.com/question/4736686

#SPJ4

Correct Question

Both passages base their arguments on the unstated assumption that

(A) genetic distinctiveness is crucial to human survival as a species

(B) public concern about human cloning will eventually diminish

(C) human cloning is a genuine possibility in the future

(D) individualism is less prized today than it has been in the past

(E) technological advances have had a mostly positive impact on society

7 0
1 year ago
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