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kakasveta [241]
3 years ago
8

Which shows the correct substitution of the values a, b, and c from the equation 1 = –2x + 3x2 + 1 into the quadratic formula?

Mathematics
2 answers:
inn [45]3 years ago
7 0

Answer:

the answer is A on edg

Alchen [17]3 years ago
6 0
1=-2x+3x^2+1\\\\3x^2-2x+1-1=0\\\\3x^2-2x=0\\\\\boxed{a=3;\ b=-2;\ c=0}
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Diane keeps her ribbons in a drawer. She has 3 white ribbons, 6 pink ribbons, 2 yellow ribbons, and 7 blue ribbons. Without look
Akimi4 [234]

Answer:

1/3

Step-by-step explanation:

She has 18 ribbons in total and she has 6 pink ribbons so she has a 6/18 chance or 1/3 chance of pulling a pink ribbon

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1862 divided by 17383
Kipish [7]

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do i round  to the nearest hundredth?if so it would be 0.11

Step-by-step explanation:


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3 years ago
Solve 90x = 81+25x^2​
qwelly [4]

Answer:

1.8

Step-by-step explanation:

Solve for x

90

x

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25

x

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90

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−

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x

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=

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90

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=

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Factor the left side of the equation.

Tap for more steps...

−

(

5

x

−

9

)

2

=

0

Multiply each term in

−

(

5

x

−

9

)

2

=

0

by

−

1

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(

5

x

−

9

)

2

=

0

Set the

5

x

−

9

equal to

0

.

5

x

−

9

=

0

Solve for

x

.

Tap for more steps...

x

=

9

5

The result can be shown in multiple forms.

Exact Form:

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Decimal Form:

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Mixed Number Form:

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6 0
3 years ago
Bob is trying to decide between two cell phone plans. Plan A has no flat fee, but the user must pay $10 cents per minute on the
professor190 [17]
$ per min is a rate. you multiple by minutes to get dollars.

A = 10x
B = 5x + 20

set them equal to find minutes, x.

10x = 5x + 20
10x - 5x = 20
5x = 20

x = 4
4 0
3 years ago
Read 2 more answers
A class has fewer than 30 students exactly 2/3of the student's in the class own a football exactly 7/8 of the students in the cl
skelet666 [1.2K]
This number would be 24. So 21 own football boots, 16 own a football and there are 24 children in the class.  not good at math so yeah
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