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3 years ago

Representing postulates with diagrams

Mathematics

2 answers:

dangina [55]3 years ago

8 0

Answer:

the 3rd one

Step-by-step explanation:

erik [133]3 years ago

7 0

Answer:

3rd one

Step-by-step explanation:

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a quadratic equation has a discriminant of 12. which could be the equation? a.0 = –x2 8x 2 b.0 = 2x2 6x 3 c.0 = –x2 4x 1 d.0 = 4

Norma-Jean [14]

Answer:

Option b which is $2x^2+6x+3=0$

Step-by-step explanation:

We have been given the discriminant 12

We have to choose the equation which will satisfy the given discriminant.

We will consider all the given equation one by one

First we will take option a which is $-x^2+8x+2=0$

Discriminant from the equation we will find by the formula

$D=b^2-4ac$

Here, a=-1,b=8 and c=2 on substituting the values we will get

$D=8^2-4(-1)(2)=72$

Hence, option a is incorrect.

Now, we will consider option b which is $2x^2+6x+3=0$

Here, a=2,b=6 and c=3 on substituting the values we get

$D=(6)^2-4(2)(3)=12$

Hence, option b is correct

Therefore, option b is the required answer.

8 0

3 years ago

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Rebecca gets a part time job in order to pay for her cheerleading uniform. her employer tells her that she will be earning $7.25

qwelly [4]

Answer:

$1972

Step-by-step explanation:

We are given that Rebecca will earn $7.25 per hour for her job and she is promised to have 34 hour workdays per week.

We are to find the minimum amount of money she will gross in eight weeks.

Number of hours of work in 8 weeks = $34 \times 8$ = 272 hours

Minimum amount of money she will earn in 8 weeks = $272 \times 7.25$ = $1972

4 0

3 years ago

Find the selling price for a case of Newman's Own® special blend coffee that costs the retailer $35.87 if the markup is 22% of t

mote1985 [20]

Answer:

The selling price is $46 approx.

Step-by-step explanation:

The cost price is = $35.87

Markup is 22% of selling price.

Let the selling price be = 100%

So, 100%-22%=78% = 0.78

So, solution is = $35.87/0.78=45.98$ ≈ $46.

Hence, the selling price is $46 approx.

4 0

3 years ago

Please Help!!! What is a polynomial function in standard form with zeroes 1, 2, -3, and -1 ?

AlekseyPX

Answer:

Numeric expressions apply operations to numbers. For example, 2(3 + 8) is a numeric expression. Algebraic expressions include at least one variable and at least one operation (addition, subtraction, multiplication, division). For example, 2(x + 8y) is an algebraic expression.

Step-by-step explanation:

7 0

3 years ago

PLZ HELP!! will give brainliest

Marrrta [24]

It is just a dark screen. Upload it again?

4 0

2 years ago

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